* Rename dax.Shard to dax.VersionedShard
* Rename dax.Partition to dax.VersionedPartition
* Rename dax.FieldVersion to dax.VersionedField
* Rename go files to a standard
In this commit, the Directive is mocked; it doesn't actually reach out
to a controller.
Limits key translation to only those partitions (per index) specified in
the Directive. Attempting to create or find a key (or ID) for a
partition which is not handled by this node will result in an error;
translation requests are no longer forwarded to other nodes.
Limits import into only those shards specified, per index, by the
Directive. Attempting to import into a shard which is not handled by
this node will result in an error.
Stub out /directive endpoint
The `applyDirective()` method still needs to be implemented.
Update mds references to use the new /mds/types structure
In mds, we moved the shared types to mds/types. FeatureBase needs to
reference those instead.
This also bumps the mds version in go.mod.
Implement the Add/Remove Index part of Holder.ApplyDirective()
This adds functionality to `Holder.ApplyDirective()` which adds or
removes indexes (tables) based on those provided in the Directive. Still
to be implemented here: shards and partitions.
WIP: remove client from Batch
Move Batch into its own package: batch
Also, in order to avoid import loops, this introduces packages:
/batch/types
/client/types
Reorganize the Importer-related code
Moved the Importer interface to package: batch
Move the "pilosa client" implementation of the Importer interface to
package: client
Modify batch.NewBatch to take an Importer (not client)
This commit modifies the batch.NewBatch() function to use a functinal
option on Batch to inject an Importer into the Batch. Prior to this,
NewBatch() took a pointer to a client, which was a little too
restrictive. Now, MDS can implement an Importer which uses information
from MDS to determine to which node(s) the import calls should be directed.
Add client.SetAuthToken() method to satisfy SchemaManager interface
Update ApplyDirective logic to include fields.
This needs more work, but it was enough to get a basic test passing.
Move Transaction type into /types package.
Add interface check on batch.Importer no-op implementation
Updated ApplyDirective to create all currently support Field types
There are still the following TODOs:
- [ ] impolement field options (ex: decimal scale, int min/max, etc).
- [ ] `time` fields
Added support for Decimal.Scale in ApplyDirective
Update mds dependency
Add /health endpoint
Update to use dax (dax/mds) instead of mds.
After moving the mds repository into the dax repository as a
sub-package, this commit changes everything in FeatureBase to use the
dax repo instead of the now abandoned mds repo.
Introduce and implment the WriteLogger interfaces.
This adds both a `WriteLogReader` and `WriteLogWriter` interface. They
are both implemented by the implementation: `fileWriteLogger`. The
`fileWriteLogger` uses the dax/writelogger API to append log messages to
files on disk.
Add WriteLogWriter.ImportRoaring method to interface
This commit adds the `ImportRoaring` method to the `WriteLogWriter`
interface. Still to implement are the `Import` and `ImportValue`
methods.
Reorganize the ApplyDirective code
The primary goal was to cache the incoming Directive on the Holder prior
to applying all of the changes in the directive (i.e. loading data from
the WriteLogger) because applying those changes often validated against
the accepted state of the node.
Implement all of the WriteLogger read/write methods
Implement the HTTP WriteLogger implementation
WIP: Introduce shard.Version. Implement snapshotter.
Add HTTP Snapshotter implementation
This also recofigures server to use the HTTPSnapshotter instead of the
FileSnapshotter.
Implement snapshotter: TableKeys
Implement snapshotter: FieldKeys
Dependency dance
last of the dependency dance
Add support for prototype
This adds the Makefile targets to build the docker container and push it
to ECR.
SQL3 changes which break with dax changes
Missed TODO: implement FieldVersion version to WriteLogger
Address bug causing missing TranslateStores to error
Originally, we tried to limit the TranslateStores which get allocated to
only those for which the node is responsible. This works when adding a
new table. But if a table already exists, there's no logic to start
missing TranslateStores.
This reverts back to the old FeatureBase logic which brutishly allocates
a TranslateStore for every partition, even if one is not needed.
We need to address this by allowing the ApplyDirective logic to
initialize TranslateStores when they don't yet exist.
Move the ImportRoaringShardRequest type to the types package
Since the ImportRoaringShardRequest object is part of the Importer
interface, we need to move it to a non-root (i.e. pilosa) package. All
the other interface types are either concrete types or part of a
sub-package (such as roaring). We do this to prevent an implementer of
the interface from having to import the entire pilosa package and risk
circular imports.
buncha changes to support latest dax stuff
Move dax related types to /dax sub-package
This commit moves all the common "dax" types into the /dax sub-package.
The idea is to ensure that featurebase does not import dax at all.
It's ok if dax imports featurebase.
In the future, we might need to split the dax sub-package (common data
types used by muliple molecula data-plan services) into it's own repo.
Add type: dax.Schema
This isn't currently being used; I started to use is as a replacement
for pilosa_client.Schema, but then deferred that. But we'll need to do
it eventually, so it doesn't hurt to have this type in place.
Export RowIDs.Merge() method for use in orchestrator.
Add CreateSQL method to dax.Table type
The CreateSQL() method will return the "CREATE TABLE" statement required
to create the dax.Table.
Comment out confusing writelogger log message.
We need to revisit this, but for now, this log message is confusing.
Also, rename daxSharder to versionStore.
Remove hard-coded AWS account
Implement more FieldOptions such as Epoch
Some of the FieldOption logic was stubbed out in the dax package. This
commit fills that out more; specifically, it adds the
dax.Field.Options.Epoch parameter.
export stuff needed for TopK in orchestrator
export ValCount stuff to implement Percentile in orchestrator
export more stuff to support less code in orchestrator, shared objs
Port dax repo over to featurebase/dax (run all as sub-services)
This commit does ALOT. Sorry.
It introduces a `featurebase dax` sub-command which can be configured to
run the various dax services as sub-services within the same process, or
individually as the lone service in process.
It also changes all the URL paths to be prefixed with the service name.
So for example, instead of calling localhost:8080/status, you would now
call localhost:8080/featurebase/status.
Also, note that all services provide a /health endpoint to confirm they
are running in process.
Clean up integration tests. Remove PILOSA_ config prefix.
Remove duplicate clients (mistake from porting dax to featurebase)
Rename sub-service "featurebase" to "computer"
In the places where we have hard-coded the sub-service name into a URI
path, I've tried to tag the line with a comment containing:
`// #SERVICEPATHPREFIX`
Update copilot manifest files to reference "computer"
Port dax/README.md from dax repository
Separate (toml) Queryer Config from Injections
We needed to separate the toml config from the configuration required to
inject sub-services into the Queryer. I'm not sure this is the best
solution, but it's *a* solution. So here we are.
Clean up (i.e. remove) the queryer "implementations" package
Remove old test file
Run WriteLogger and Snapshotter as local sub-services.
Prior to this commit, the writelogger and snapshotter services only
worked when run as separate services. This allows them to be run in the
same process as all the other dax services.
There is still some naming issues that we should address, but it's
functional for now.
Clean up (i.e. organize) the intra-service interfaces.
Implement alpha Director for local messages from MDS to Computer
Prior to this commit, messages from MDS to the computer service were
still going over http. This commit introduces an interface
implementation which registers the local computer command, and use that
command's API to directly reference methods used by the Director.
Clean up a few more interface names
Add Queryer OpenAPI document.
Update copilot manifests to reflect latest changes
Add OpenAPI documents for WriteLogger and Snapshotter
Add OpenAPI document for MDS service
Add OpenAPI document for Computer service
Consolidate errors to use fb/errors package.
This commit is a first pass at trying to ensure that all of the DAX code
uses:
"github.com/molecula/featurebase/v3/errors"
This package is a wrapper for "github.com/pkg/errors", so going forward
we want to avoid importing that package.
The only method which isn't backward-compatible is `New()`; the
New() method in the featurebase/errors package takes an errors.Code. If
this becomes a problem, we could change this by reverting New() and then
introducing something like NewCoded(). But for now I think it might
actually discourage someone from just creating a New() error without
thinking about how it should be coded.
Introduce VersionStore interface
Move the existing VersionStore code to the `inmem` package as the
in-memory implementation of the new dax.VersionStore interface.
Introduce NodeService interface
With this, the Controller can maintain a registry of nodes by using this
NodeService interface as opposed to an in-memory map of nodes on the
Controller struct.
This also adds an inmem implementation of the NodeService interface.
Introduce controller.Balancer interface
This moves the existing balancer package to controller/naive package.
The idea is to allow us to add a different Balancer implementation in
the future.
Introduce DirectiveVersion interface
This commit also includes *A LOT* of refactoring to use dax.Worker and
dax.Job types everywhere instead of strings.
Introduce Schemar interface
The previous `Schemar` struct was moved to the `schemar/inmem` package,
and `Schemar` is now an interface implemented by that inmem package.
Remove unused type `nUnit`
Add boltdb implementation of VersionStore interface.
This removed the previous sqlite implementation; we decided not to use
sqlite for now (as a basic, local disk implementation) because it
requires CGO.
--------------------------------------------
No longer applicable:
Add sqlite implementation of VersionStore interface.
This commit implements the VersionStore interface using sqlite. Sqlite
requires CGO, so this may not be something we want to include, but it's
implemented here to get a feel for how an external implementation might
be used; the next step will be to determine how the user configured
FeatureBase to run using sqlite as a backing store for services like
MDS.
Add boltdb implementation of NodeService and DirectiveVersion interfaces.
Add boltdb implementation of naive Balancer interfaces.
This includes the two interfaces defined in `naive/balancer.go`:
- WorkerJobService
- FreeJobService
Add boltdb implementation of Schemar interface.
clean up a linter issue
Thread context.Context through all the interfaces.
Some of the interface implementations are going to use context, so we
need to make that part of the interface. The boltdb implementations, for
example, take a context. This is probably so we can do things like
cancel or timeout operations.
Update interfaces to return error; remove `panic(err)` everywhere.
Down-rev grpc version to 1.38.0
Later versions (after 1.42.0?) cause MustRunCluster.Close() in tests to
deadlock.
This commit also adds an `isComputeNode` feature flag around some of the
write log and shard/partition check functionality so that it doesn't run
under normal conditions (this is excercised by running the sql3 tests
for example).
Add MDS_Persistence test to cover meta data persistence
This adds a basic test which configures the MDS container to use boltdb
as its persistence storage, saved on a docker volume. Then, the mds
container is stopped/replaced, and we confirm that the data stored on
the volume is availble to the new MDS container.
Fix a few things after rebase with sql-experiment branch
The lastest version of sql-experiment contains a fairly significan
refactor of the way query iteration works. This commit adjusts for those
changes.
pull dax IDK changes in to FB IDK (#2177)
* pull dax IDK changes in to FB IDK
* Move docker-related IDK build stuff to featurebase root
Building the docker image required the root level go.mod and vendor
directory. This change moves the make targets to the root level
Makefile, and the Dockerfiles now copy the root level vendor directory
(and everything else in the root for that matter).
* Fix batch- and client-related tests
* InitializePoller on MDS restart/replacement
Prior to this change, if MDS was restarted, its internal poller (which
maintains an in-memory list of nodes to poll) is empty. This is bad,
because it doesn't know about nodes that it should be polling.
This change fixes that. Upon MDS startup, it intializes the poller with
the list of nodes that MDS keeps in persistent storage (currently:
boltdb).
* Add EFS volume to MDS Copilot manifest
This allows us to use MDS's persistent storage (via boltdb) in the
Copilot demo by saving metadata in a boltdb file on EFS.
* Thread logger.Logger through all dax components
* Revert some of the breaking changes from DAX development.
When we first started prototyping DAX, we made changes to the
featurebase core code which would have broken the existing featurebase
functionality. This commit reverts some of those changes. Anywhere that
we need to modify core featurebase functionilty, we put it behind some
kind of feature flag. This flag is typically determined by whether the
running node is a "compute" node (i.e. DAX.COMPUTER.RUN = true).
Co-authored-by: Travis Turner <travis@molecula.com>
add packaging for DAX
need cgo for datagen build
bind to 0.0.0.0, pass GOOS and GOARCH explicitly
not sure if the explicit GOOS/GOARCH is actually necessary...
Get INSERT INTO (aka ingest) working through SQL3
This commit does a few things which I'll try do describe here.
- Introduces a Qctx interface. The existing Qcx is an implementation of
this interface, and can be used exactly how it has been. But this
allows us to abstract away the notion of Qcx in the Queryer (which is
handling SQL3) until we're ready to address that. As an example, the
Qcx has a notion of a featurebase Holder, but that doesn't make sense
when we're at the Queryer layer. For now, the Qctx used in the Queryer
is a no-op.
- Adds a ComputeAPI interface implementation for the Queryer. This is
effectively the Import() and ImportValues() methods used for ingest.
The logic here handles the incoming ImportRequest by first doing any
necessary column and row translation for the entire request, then it
splits the records by shard, and generates a new ImportRequest per
shard with only the shard-appropriate records.
- Changes the mds.Importer to take an MDS interface implementation
(which can be an mds client) instead of an mdsAddress. This allows us
to use a localy MDS implementation rather than assuming we need a
client to make calls over a network.
Add queryer.Importer interface to handle ingest via SQL (#2203)
* Add queryer.Importer interface to handle ingest via SQL
This is meant to support ingest through SQL when the queryer and the
compute services are running in the same process, or when they are on
seperate processes and need to talk via http client.
* remove datagen from RPM
was originally added as a convenience to generate test data, but is
unused and annoying because datagen doesn't easily cross-compile due
to cgo
* add marshalUnmarshal to controller to avoid passing pointers
passing pointers across API boundaries can cause unpredictable things
in local vs remote configurations.
Co-authored-by: Matthew Jaffee <jaffee@pilosa.com>
"fix" a few issues with wrong default partition numbers
these still need to be properly fixed and actually get the correct
data from MDS
go mod tidy
Introduce TableQualifier (OrganizationID/DatabaseID) (#2220)
* add check in ApplyDirective that version is increasing
fix TestAPIDirective to make version always increasing
* fix docker image build and break out dax test in CI
We have to run the DAX integration tests separately as they call out
to Docker, and so it isn't easy to run them in a Docker container as
the other tests do. So we run them directly on the CI runner which has
Docker and Go installed.
We also explicitly exclude these tests from running during the other
tests.
Also my editor was automatically reformatting some comments badly
which is why I added the "data" thing in those two places
* add timeout to poller
* give Poller a default Logger
apparently we can NPE sometimes, seen in CI: https://gitlab.com/molecula/featurebase/-/jobs/3028286364
* bunch of testing fixes, mostly IDK/DAX related
make MDS error if sendDirectives errors, don't just
log. sendDirectives can error if computer nodes disagree about the
validity of a schema (for example), in which case it might need to get
deleted and user notified somehow. very messy, needs more thought.
re-introduce old env prefix to maintain compatibility with master
branch
make self-contained dax container for IDK testing
build IDK images from source (now that all the source is available
since it's in the same repo)
catch errors in DoExtractQuery in idktest.go
fix IDK bug where prefix path was hardcoded in all cases rather than
only when useMDS was true
fix TestBatchTargetMDS... needed to add field options and catch error
when creating table. also needed an _id field
* fix env prefix in tests
* WIP getting tests to pass, wanna see CI
* don't error if we get a zero version directive and we don't have a
directive yet
* cleanup debugging junk
* "fix" future.rename thing, run IDK tests
* Introduce TableQualifier (OrganizationID/DatabaseID)
This commit introduces a lot of new types (in dax/table.go) related to
TableQualifer (which is made up of OrganizationID and DatabaseID), as
well as things like TableID and TableKey.
For the most part, we try to thread a QualifiedTableID through the
entirety of DAX. There are some places (for example in the Balancers,
which are just aware of string keys) which use a string TableKey
(tbl__org__db__tableid).
* Remove some debugging comments
* Add Org/DB support to CLI.
This commit adds support for special commands:
SET
SET ORG acme
SET DB db1
USE db1
* remove ".pulled" from IDK Makefile
I don't think we need it any more as most things can be built
locally. I think it was only there to refresh the FeatureBase images
that were tagged as master, but we don't need to do that any more.
* Change DAX json tags to kebab-case (i.e. hyphenated)
This commit also renames some struct arguments to more accurately
reflect their type: for example, renaming `Table` to `TableKey` when the
type is TableKey.
* Return DAX TableName in SHOW TABLES (instead of Index.Name)
There are cases where SchemaAPI is used to return DAX friendly table
names (as opposed to featurebase index names, which are DAX TableKey).
This is an attempt to do that. With that said, it's not ideal because
anything could call those API methods and expect the other type.
* Fix a bug which wasn't completely dropping a table.
When using boltdb as a backend, DROP TABLE wasn't removing the
reverse-lookup key for the table in boltdb.
* Remove idk/testenv/certs which got accidentally committed.
also update .gitignore to include those.
* Fix IDK ingest tests to be TableQualifier aware.
* Add example Table types to dax/table.com godoc.
* ignore idk.Main fields for flags, upgrade commandeer
* go mod tidy
* Fix DAX integration tests: ingester using wrong ENV VARs
We change from ORGANIZATION_ID to ORG_ID
and from DATABASE_ID to DB_ID
* Clarify things around idk (docker) tests
* Stop running TestKafkaSourceIntegration with t.Parallel()
This test can't be run in parallel as it's currently written. Doing so
allows for interleaving of messages to the same kafka topic between
tests.
I didn't attempt to modify the test so it could be run in parallel. That
could be done, but left for someone more ambitious.
Co-authored-by: Matthew Jaffee <jaffee@pilosa.com>
Require Directive.Version be a non-zero value. (#2227)
Because the directive cached on the holder is not a pointer, its default
version is 0. In order to avoid having to compare against that, we just
require that Directive.Version start at 1.
General, non-invasive code cleanup and comment adjustment.
Move ImportRoaringShardRequest out of the types package
Early on in the DAX development, I moved ImportRoaringShardRequest into
a types package. There must have been some import loop going on, but
since that is not longer the case, it's safe to move this back into the
core featurebase (er... pilosa) package.
Move Transaction struct back into the pilosa package (from types)
Revert some name changes (cli -> client)
Add DAX Handler CloseTimeout
This was implemented in htt_handler.go, but it had been commented out in
the DAX handler. This just uncomments that and finishes the
implementation.
Remove Qcx from queryer.Importer interface
This sets us up to revert the Qctx interface that was initially
introduced to allow us to abstract away the need for a Qcx when calling
the ComputeAPI from a remote service (i.e. the queryer).
Add some go-doc comments and remove unused code.
Move SchemaManager setup from datagen to idk.Main (#2233)
The set for idk.SchemaManager (for dax implementations) was previously
in datagen. This may have been because of some import loop problem
during development, but that's no longer an issue.
The setup for this should be in idk.Main so anything using that can
leverage the MDS-specific SchemaManager setup.
Fix issues around nil TxFactory
First, don't return a nil. Rather return a new *TxFactory (with no
holder).
Second, don't call `f.holder` in the testhook outside of checking if
`f.holder` is nil.
Wrap all bare errors
Make service prefixes constants
Instead of having `"computer"` throughout the code, use instead a
constant: `dax.ServicePrefixComputer`.
MDS skip errors when sending empty directives
also add in the docker-login and ecr-push changes for serverless DAX
Fix the logic in Directive.IsEmpty() (#2236)
Update the cached value for Index.translatePartitions
In the case where a node already knows about an index, but its
assignment of partitions for that index changes (for example, when
another node goes down and the node in question is now responsible for
more partitions than it previously was), then we need to update the
cached value of Index.translatePartitions because that's used in
translation checks.
minor fixes for IDK-related bugs
WIP: tokenize CLI to access cloud
FB CLI cloud support with automatic token refresh
Also adds support for a GET command which allows making HTTP GET
queries to cloud CP which can be handy for debugging stuff. E.g. GET /v2/databases
buncha little fixes working on writelogger stuff
fix writelogger/snapshotter setup bugs
implement writelogging for importRoaringShard
add debug endpoint to MDS
use shard transactional endpoint in MDS datagen
add debugging to API related to writelogger
revert handleroption change
clean up big PR
remove "GET" command from CLI for making arbitrary HTTP request to
cloud control plane (was a messy hack and not that useful)
remove json tags from FB objects where we had to duplicate the object
elsewhere due to import loops and weren't actually json encoding it
unexport handlerOption which was exported to try to avoid doing
certain things if we're in DAX mode, but I didn't end up merging that code.
remove (hopefully) unecessary extra call to api.indexField
fix some formatting, unexport some vars, godoc, etc
oops, fix build failure
Update FeatureBase CLI to support a standard deployment
The standard deployment uses a different endpoint and request payload.
This commit tries to detect is the standard deployment is being used,
and if so, it uses a standard-specific FBQueryer.
It also modifies the auto-detection logic to try standard featurebase
and dax ports in the case where a port was not provided.
MDS API refactor (#2259)
* MDS API refactor
table IDs are exposed but only created server side
also cleaned up dax Makefile
* clean up review feedback
Co-authored-by: Travis Turner <travis@pilosa.com>
* remove TablesByName
* rip out inmem implementations and use boltdb everywhere
* remove inmem balancer, create bolt tempfile by default on startup
* WIP on snapshot table impl and test
* Minor comment and code layout adjustments.
This commit also adds the `Equals` method to `QualifiedTableID` for
equality comparisons. It's no longer safe to compare struct (two structs
might still be equal even if one of the structs doesn't have a `Name`
value.
* Use a unique docker network for each dax test
Ocassionally we would see some test failures due to a network already
existing. This shouldn't happen, but to avoid that, this commit
generates a unique name for each sub test (which gets deleted at the end
of every test).
* Fix one instance of NewQualifiedTableID losing Name
We should probably check the other instances and see if Name is getting
lost.
* simplify unique network stuff and fix api directive tests
* Remove TableIDRequest and TableIDResponse types for /table-id (#2267)
For the mds/table-id http requests, just use dax.QualifiedTableID as
both the request and response types.
* remove lattice from dax, no error on node re-reg, dax docker-compose
* various updates
* WIP: mds-refactor branch review
* no-op on SnapshotTableKeys if table is not keyed
* Makefile helpers
* add doWeCare so controller doesn't fail unnecessarily
* clean up table creation (#2272)
* Strip underscores from TableID stub name
* fix boltdb versionstore tests: generate unique, sorted tables
* fix controller test related to reregistering a node
* JobSet -> generic Set
Co-authored-by: Travis Turner <travis@pilosa.com>
Co-authored-by: Travis Turner <travis@molecula.com>
Cleanup after rebase on master
The latest rebase on master entailed all the client/batch changes as
well as some of the qcx refactoring. It made for a hairy rebase. This
commit fixes some of the tests that were failing after that rebase.
Fix batch/client import loop missed during rebase (#2280)
It's not surprising that `batch` can't import `client`. It was doing
that here (importing an error type from the `client` package). What is
surprising is that it's okay for `batch_test.go` to import `client` even
though `batch_test.go` is an internal test and therefore part of the
`batch` package.
different boltDB's for schemar/controller, explicit balancers
nice helpers for dax docker-compose, make build really fast
build FB binary outside of docker, then create Docker image with its
working dir in an empty subdirectory so it doesn't send a GB of
context to the daemon.
error on unassigned jobs and use client with timeout
fix CR feedback
deregister batch of nodes
also make removal faster via director dial timeout
implement WorkersForJobPrefix so orchestrator doesn't make up shards
also fix some godocs and remove unused method
Run sub-tasks of a Directive concurrently in a worker pool. (#2275)
* Run sub-tasks of a Directive concurrently in a worker pool.
This allows the compute node to concurrently load shapshot and writelog
data concurrently, instead of one keyset/partition/shard at a time.
It introduces a config parameter called `DirectiveWorkerPoolSize`.
* code review cleanup
* Use unique container names in DAX integration tests
We were seeing "container already exists" errors in CI, so just to be
safe, this commit constructs a unique container name for every container
in the DAX integration test run.
Stub in SystemAPI to Queryer (note: will not work if used)
This just makes is so that dax can compile. Actually implementing
system-table functionality for dax will take some planning.
Tlt/dax merge prep (#2282)
* Remove copilot directory
* Remove Dockerfile-datagen-long
* Remove orphaned RegisterNodeRequest
This type is not defined in the dax/mds/http package.
* implement TIMEQUANTUM and TTL in Table.Field type
* Remove the "service" misdirection in queryer/writelogger/snapshotter.
We had originally used an additional layer, er.. package, for a "service".
The main distinction was that the Config differed in that it was
internal, unlike the Config that we need to provide for the top-level
server config (i.e. toml). Having that additional layer just to support
a different Config seemed premature at best. So I'm removing it.
* Remove dax docker containers no longer used in tests
Since we run everything as "featurebase", we don't have multiple
container types anymore.
* Some minor comment updates
* Remove nfpm stuff related to dax
* Fix linter issues
Fix "duplicate" issues raised by sonarcloud.
run docker components of dax integration tests with coverage
trying to get dax integration coverage
add coverate volume mounts throughout dax integration tests
add a lock, tweak dax Makefile, remote flag on query handler
remove some unused code
convert batch tests to use clustertests to get coverage
maybe fix clustertests
more authclustertests fixes, test is failing locally
but also seems to have been silently failing in CI prior to these
changes... let's see if it's still silent
fix some lint to kick CI
just re-running the job wasn't working... strange behavior
remove RetryLogic test and pipe which don't work
RetryLogic test removed due to etcd changes. Seebs thinks we shouldn't
test this here.
Pipe was being ignored since we're no longer using "bash -c" to
execute the command. If we need to generate that output file we'll
either have to reintroduce bash -c and set -o pipefail so that it
actually fails properly, or figure out some other solution.
shooting into the dark...
first cut at bulk node registration
remove unused stuff from batch tests, set coverpkg to ../...
batch registration timeout and fix tests
disable most tests and don't run fb background batch test
debuggin!!!!!!!!!
and then he tried this....
Implement importer (for INSERT INTO) in the Queryer
Prior to this, we we passing a nil value in for the importer to the
planner.NewExecutionPlanner in the Queryer. This meant that INSERT INTO
statements didn't work. Now they should.
It uses the importer that we build for IDK in /idk/mds/importer.go, and
wrapps that with a type that can determine if the provided string
"index" is of the form indexName or TableKey.
turn off debug mode, fix log saving
Run sql3 test definitions in a dax integration test
There are currently 22 tests which are not passing. They are skipped in
the "skips" slice.
WIP, not working, pql queries to tests
Add TableQualifier to PQL query logic in the Queryer
Add more PQL tests to the keyed table
Allow instant node registration if registration-batch-timeout=0
When running dax services in process, we don't want to wait 3s for the
compute node to register; we know it's there because it's in the same
process.
Fixes related to IncludesColumn PQL test.
Tests for ConstRow and FieldValue
cleanup
add UnionRows and Options, better error reporting on bad queries
delete unused schemar client.go, clean up unused in batch test CI
move test timeouts into more reasonable territory
apparently this had already been done, but got merge-stommped at some point
move dax bolt test helpers into dax package
Add computer CheckIn routine (#2296)
* Add computer CheckIn routine
This adds a background routine which sends a "check-in" request to MDS
every <interval>. This is to address the case where the poller has
removed a computer node from the node list (due to a network fault, for
example), but the node is still healthy and becomes available again. In
that case, the node needs to "check-in" to tell MDS it is still there.
MDS will likely send the node a new directive with Method=reset telling
the node to delete all of its data an apply the latest directive.
* Don't send directives to Deregistered (i.e. removed) nodes
We have an issue where we're locking on sendDirective in the
controller, and when the node is unavailable, the send hangs and never
releases the lock. This is a temporary fix for that until we address the
real problem.
Fix .gitlab-ci.yml after rebase
fix some indentation shenanigans
The anti-entropy feature has never actually worked. We've been
talking about removing it or replacing it for ages, but haven't
had a concrete motivation.
But the anti-entropy interface is the sole user of several components
of the Tx interface, and now that we're trying to replace that
interface, being able to drop those components has some appeal, so
let's remove the one thing that used them, in the hopes that this
will simplify life.
This also lets us drop ForEach and ForEachRange, which were
barely used at all. The one surviving usage (CSV export) can be
handled by using the container iterator we already have, and
making ContainerCallback exported so we can use it to just call
things for every bit.
enriched metadata for tables
added support for the concept of a table and field owners in metadata; mechanism to derive owner from http request metadata; metadata for table description
We centralize the creation paths for test indexes, fields,
etcetera so they all have a common path, all using standard
test holders. There's still two versions, one for test.* functions
and one for internal. They do share a TestHolderConfig though.
Large hunks of the related APIs are simplified/streamlined.
* Fragments are always created with a Field and don't need
a workaround in case they don't have it.
* Creation of test fragments, etc., use optional FieldOptions
but don't specify names because they're all using new holders
for each thing created anyway. This dramatically reduces
the complexity of the calls.
* test fragments are created inside test views which are created
inside test fields, etcetera, so everything is using the same
logic; test views aren't bypassing the other layers, they're
creating themselves normally within a field.
* Quite a few things now use the standard runtime/production
logic instead of being custom workarounds; for instance, instead
of `mustOpenMutexFragment` creating a fragment and then creating
a mutex vector for it, we just create a mutex-typed field and
have the normal runtime code do this.
* Similarly, we now use the same field creation logic that production
does, instead of having our own test-only thing that validates
field names directly, so our test that we're validating field names
is actually testing the runtime code. Yay.
* fragSpec goes away. it was a replacement for fragProxy which existed
to solve memory allocation problems but replaced them with interface
overhead problems. Now we just have pointers to things and maintain
valid data structures.
* Many panics are now Fatal or Fatalf calls.
* Some specific bugs fixed, like a cluster which was requested and
then had its first node directly overwritten, which isn't valid with
shared clusters.
* Drop the temp-dir test flag and TempDir variable, we can just use
$TMPDIR.
* Drop a benchmark of "write file to disk" that was purely a benchmark
of file write speed, not a benchmark of rendering the data that needs
to be written.
* Drop the unused "flags" parameter to fragment creation, which was
only used back when we changed the BSI format.
* Use holder.Txf() rather than index.Txf(). The TxFactory has to be
holder-level anyway, referring to it via the index is misleading.
* Test holders automatically close themselves and delete themselves,
we remove various other things that thought they were responsible
for deleting themselves.
The root problem this is attempting to address is sporadic
weird cases in which etcd mistakenly thinks it's down even when
it's up. I am not confident that this is addressed, but there's
a reasonable chance that it is, and I can't trigger it at the
moment, but it was always sporadic, so that doesn't prove much.
There's a lot going on here, and it comes into roughly three
categories.
First: Dropping unused/unneeded code. There's a lot of leftover
bits from the initial development and refactoring of this.
Second: Unifying and shuffling some of the design. We had
multiple interfaces which are functionally impossible to
usefully implement separately, so they're combined together,
and in some cases, moved.
Third: Streamlining logic and simplifying design choices.
This is combined into one commit because the changes are
thoroughly entertwined with each other and you can't usefully
break most of them out.
Also, a bunch of test coverage for most of these changes.
Big changes:
We merge the topology and disco packages. The topology and disco
packages being separate creates a complicated tangle of problems
and dependencies. The fundamental problem, approximately, is that
topology.Node has to track disco.NodeState.
There's three core interfaces interacting here:
topology.Noder (maintains list of nodes)
disco.Stator (maintains the state of a node)
disco.Metadator (stores, possibly retrieves, node metadata)
But the node state mantained by the Noder *is* the set of node
metadata, plus state updates produced by Stators. The only actual
non-trivial and usable implementation of these interfaces is a single
thing which implements all three, and in which the implementations
share a single backend data source which they are all modifying.
But you can't move Noder into disco, because Noder has to refer
to topology.Node, but topology.Node refers to disco.
Solution: First, merge these two packages. Second, merge these
three interfaces, to provide a single interface which is more
clear about the fact that (metadator.)SetMetadata() and
(stator.)Started() are both changing the output we'll get from
(noder.)Nodes().
We rework the node state tracking.
We have this nodeStates map which is almost unused. Really, we
don't need it at all. Every node's state is either its last heartbeat
state or "Unknown", so we simplify this a bit. Also, we ensure that
the populateNodeStates function itself is yielding the sorted nodes
list, so we don't have to be as worried about possible later lookups
of sortedNodes happening outside a lock. We also add diagnostics
for deleting nodes from the metadata list (this should never happen),
and try to track heartbeat state more closely.
This is *probably* what fixes the underlying reported problem,
if anything did.
Still an open issue: Make heartbeat state changes aware of when
they're talking about *this* node and possibly not try to
mark it down? Except this may have a flaw: That would result in
each node disagreeing with other nodes in etcd about the state
of that node in the failure cases, and undermine the point of
using etcd to keep these states consistent.
We reduce the number of contexts and cancelfuncs in the etcd wrapper.
We create a shared context for the non-etcd.embed children of our
etcd wrapper, the heartbeat/keepalive and the node watcher, so we
can cancel that one context and cancel all of those at once, so
we don't need to separately track a function to call to cancel
the watch, AND be closing another channel. Also, our shutdown
now propagates automatically to the various etcd API calls we've
made for things like the node watcher and keepalive calls.
We still need to watch that channel in watchNodesOnce, though,
because apparently the watch doesn't yield an error even if the
context calling it is canceled. Whee.
This should reduce the risk of ending up in an inconsistent state,
and also the Close() function is probably idempotent now.
Smaller changes:
* Remove config-generators that existed to generate etcd
configs but were used only for tests that no longer exist
or make sense.
* Move the logic to generate etcd configs into the etcd
package, instead of the "testing" subpackage. This allows
us to write a self-contained config generator for
clusters where the nodes know about each other, but do
this just with etcd, not with full featurebase servers.
* Move the thing generating `fake:%d` socket names into
the etcd package, which is the only place we use it.
Also simplify it slightly.
* Don't panic on invalid URLs, report errors from them.
* At least try to use etcd's config.Validate functionality.
It's underdocumented, so we're not sure what it will report,
but at least if it does we'll get reports from it and
know what they are?
* Try to handle CompactRevision errors from watches more
correctly -- after a CompactRevision, any future attempt
to watch from a lower revision will necessarily fail, so
we adjust our target revision up. We don't have good
testing for this.
* Drop the Metadata() method (that used to be in Metadator)
because nothing ever used it and it didn't make much sense
to try.
* Convert SetMetadata from taking an arbitrary json blob
to taking the only data that would ever be valid since
we always use it to extract node information anyway.
* Drop several unused functions, unexport things only used
internally.
* Replace Started() with SetState("STARTED"), allowing us
to write tests that mess with states. We weren't really thinking
carefully about state transitions sometimes and now it's much
easier to do that thinking.
* Stop leaving stray localhost:2380 and localhost:2379 in
our embed config. We still sometimes see peer requests from
those and I honestly don't know why, but at least it should
be rarer.
This way we can't get into an inconsistent state.
Consider this example:
You have a 3-node cluster, nodes A, B and C.
You create an index "blah" while all three nodes are up.
Nodes B and C go down.
You attempt to delete the index. It is removed from node A's holder, but is not removed from nodes B and C.
When nodes B and C are restarted, the schema still shows this "blah" index.
If you attempt to delete the index from node A, you receive an index not found error, but the schema indicates the index exists.
With this change however, when you first attempt to delete the index, it is not removed from the holder until there is enough nodes up to achieve consensus.
The same situation applies to fields and views.
We default to the jmp-hash method which we had previously, and allow a
user to set the "modulus" option which uses a simple mod operation to
ensure an even spread of partitions across nodes.
I think that ideally we would have new indexes uses modulus and
existing indexes use jmp-hash which implies supporting this
configuration on a per-index basis.
If we don't do per index, we should probably run the whole test suite
both ways.
This is a lot more complex than it sounds like it will be.
We shut down the cache flush when a holder is closed, but if you're
deleting an index, we don't check for that, and can have a cache flush
still creating cache files in an index which could conceivably result
in os.RemoteAll() failing. This shouldn't happen often, but it's happened
at least once.
To address this, first, we make sure that every tier of this operation
bails as quickly as it can after the thing it's working on closes. Second,
we retry RemoveAll.
Unfortunately, some things get reopened, so we have to handle that,
have mutexes covering the access to the channel, and so on. Also, some
things were getting double-closed, which was previously harmless but
could now fail. So, first, catch all the existing double-closes and
remove them, second, make the double-close fail with an error. Note
that virtually none of the tests check for errors on close.
This passes tests and should be unable to hit the original problem.
Unfortunately, it's unreasonably hard to check that, because it
requires an incredible coincidence of timing on the delete aligning
with a cache flush.
When deletion is started, _exists field is updated with row+1.
After deletion is completed, we delete _exists=row+1.
If _exists>=1, then deletion was not completed.
Updated go version in docker to match other requirements.
Removed duplicate error check for grpc.
This adopts the task pool functionality to let us spawn new worker
threads when worker threads are blocked. The underlying reason for
this is the same as the reason for the previous worker-pool-growing
strategy; while our design persistently has at least one thing which
can proceed, it can be the case that there are N things blocked,
where N is the size of our worker pool. Blocked workers shouldn't
count against our desired number of workers.
Originally, the intent was to thread this into RBF, and provide
backpressure from RBF on the pool when blocking on writes. Unfortunately,
that's not good enough, because while a write is blocked, the Qcx
calling it is *also* holding the Qcx's mutex, which means that any other
NewTx on that Qcx will *also* block. So we need to block for the
entire time of the NewTx.
Removing the existing worker spawning code resulted in a subtle
and maybe-harmless change; prior to this, each invocation of `mapperLocal`
would hold a lock, which meant that all the tasks for a given local mapper
would be put in the queue *sequentially*, ensuring that they'd all be
picked up by workers before things from later workers.
With the new pushback, that's not, strictly, necessary. Also, if you
disable it, you can end up with 300,000 goroutines at once, most of them
blocked.
A smallish run does, in fact, eventually complete anyway -- it will
indeed keep making workers until everything gets one. However, while
it's *correct*, it's also noticably *slower*. The same test workload
goes from around 33 seconds to a bit over 40 seconds when that lock
isn't present. (But that's with an extremely small WAL write cap
introduced to make the previous deadlock possible.)
With large numbers of shards, the practical impact is that you can
have quite a lot of things in process, with hundreds of goroutines
each, all blocked waiting for one writer. If we force them to all be
processed at the same time, all the reads that are connected to
each other are much more likely to get all processed at once, before
something new comes along.
In short, that lock isn't strictly necessary but it seems to help
noticably with performance and reduce simultaneous goroutines
significantly.
- Add auth-token for featurebase import, backup and restore
- Add auth-token to http request
- Create a cluster tests with auth enabled
- Add test for import with auth enabled
it was somewhat difficult to avoid ripping this out without also
touching some of the stuff that supports roaring backend. That's going
soon too, so no worries :)
i used this script, a little clunky but it got the job done
```bash
for file in `find . -type f -print | grep '\.go'`; do
sed '1,/^\/\/ limitations under the License.$/d' $file > $file.tmp;
result=`cat $file.tmp`
if [[ result != "" ]]; then
gofmt $file.tmp &> /dev/null;
if [[ $? == 0 ]]; then
mv $file.tmp $file && gofmt -w $file;
else
rm $file.tmp;
fi
else
rm $file.tmp;
fi
done
```
These commits are hard to disentagle, and doing them separately means
re-modifying the same chunks of code several times before removing it,
and similar things.
Basically:
(1) Drop the bolt backend storage.
(2) Drop the blue-green wrapper that compares two backends.
(3) Drop unused or barely-used Tx API components from all the
remaining backends.
(4) Minor related cleanup to simplify things related to these.
The boltdb backend existed only to verify RBF. The blue-green wrapper
was mostly used to verify RBF, but in practice we had to do a lot
of working around that, and it introduced a lot of special cases.
Types removed:
IteratorFinder: Used only to implement the roaring iterator
on top of boltdb, and to complicate the way it worked in roaring.
Reverted the complications. Also unexport NewSliceContainers
which is used only for that outside of roaring's internals.
PortMapper from cluster_internal_test.go: Used only for a test
we removed early this year. Never used for anything else.
RawRoaringData: Totally unused.
TxStore: Totally unused.
Functions removed from Tx API, and sometimes corresponding
members were removed from structs:
* Dump: debugging code, I don't think I found any actually reachable
paths to it.
* Group: only used for debugging TxGroup stuff
* IncrementOpN: only used by fragment, fragment can increment its
own opN.
* Options: unused?
* Pointer: debugging only
* Readonly: used only to decide how to handle Tx in a TxGrp,
but we never add a non-readonly Tx to a TxGrp. Removed also all
the corresponding write-aware stuff.
* RoaringBitmapReader: Used exactly once, can just be a bm.WriteTo.
* Sn (and OpenSnList): Unused
* UnionInPlace: unused and conceptually-invalid; it didn't write
to storage and shouldn't have, and was just "create a bitmap
then call union-in-place", which we can do directly.
* UseRowCache: just checked storage.UseRowCache.
Other things removed:
The SetRequiredForAtomicWriteTx and ClearRequiredForAtomicWriteTx
functions go away, since nothing now seems to be using them? Same
for holder_internal_test's `testHasBit` and `testMustNotHaveBit`,
which were unused.
The DBPerShard "DeleteDBPath" and "HasData" functions and related
parts were mostly unused; took out the parts that were never
actually being reached.
Changed the API of one function to simplify special cases and
remove things:
* ImportRoaringBits had a special "data" argument which gave it
subtly different semantics for RBF and roaring (for roaring, it
could produce a roaring bitmap *with ops log*), didn't seem to
be adding much. Removed corresponding "readStorageFromArchive"
which is not otherwise used.
Also took out various debugging/dumping functions that were unused
and may have bitrotted.
Dropped a test from txfactory_internal_test, and the "pjobs"
code, because those two were the only things that needed Barrier
and thus idem, which lets us drop two more dependencies. We already
have errgroup for grouping things which want to terminate as
soon as one of them errors, approximately. To do better we'd have
to have context-threading, really.
Unbroke the WriteFragment test for non-roaring tests and made it
not roaring-only.
Performance of tests on MacOS has been atrocious for a while, and
a lot of that is fsync, so we're trying to make that optional.
To test all of this, I modified RBF to panic if anything tried to
open an RBF database without disabling fsync, and ran the tests that
way, and tracked down the various places this could still happen.
There's a lot of places in our tree where we were creating
test holders which were not getting created with fsync disabled, which
results in a surprisingly large number of points at which we end
up calling fsync in tests, which makes tests much slower than they
need to be. There's also a bunch of places where the flags don't get
propagated correctly; for instance, storage.fsync didn't propagate
to the RBFConfig.
We add an "fsync enabled" flag to OpenTranslateStoreFunc, so we can
tell translation stores that we don't need syncing, so the server's
config can be passed on appropriately.
More of the test code that sets things up is correctly configuring
that flag by default.
We also change the barely-used bolt storage backend to support this as
well.
With this done, the only calls to fsync left in a run of `go test -short`
in the top-level directory are from the zap logger in etcd, and consumed
around 0.03 seconds. The overall impact is that `go test -short`
went from "takes enough more than 10 minutes that i don't know how long
it takes" to about 2.5 minutes.
Attributes are unmaintained and unused.
They have become more of a liability than a benefit.
This change eliminates them from the codebase.
The only user-visible change (assuming that attrs are not used) is that the attrs field will no longer appear in row JSON.
We check mmap limits, and try to set/increase our open file limits,
and we check the mmap limit when we start the server, and try to set
the open file limit every time we open a holder.
It's useless to do these things more than once, though. We migrate
these things to be run through a sync.Once, which runs all of them
the first time a server starts up, and then thereafter just returns
the error code from that first run. This should make test startup
ever so slightly cheaper, saving us potentially several microseconds,
but also reducing the spamminess of the message.
I've taken out the `sudo ulimit` advice since it's wrong, and the
documentation link is updated to point to our (now private!)
customer documentation.
Prior to using etcd for node membership, the data director was created
during the cluster topology setup. Since that no longer exists, we
weren't actually creating the data directory before getting to
logStartup(). So this change ensure that the data directory exists.
