This commit refactors the profile and bitmap attribute stores so
that they share the same code. There is a new `AttrStore` which
associates key/value pairs with a `uint64` identifier.
The previous JSON encoding has been fixed to use protobufs which
fixes encoding issues for int64.
This commit adds the ability of the Fragment to flush the cache
bitmap IDs to disk periodically. They can then be reloaded when
the fragment is reopened.
This commit adds the ability to set string, integer, and boolean
values on bitmaps and profiles within Pilosa. Bitmap attributes
are automatically returned when making a `Bitmap()` call. Profile
attributes must be requested by setting `profile=true` in the
URL.
The function names have also been renamed to initial caps so that
the PQL query language can support math operations in the future.
This commit refactors the roaring bitmaps to use uint64 values
instead of uint32 values. This is required for the size of
values we need in pilosa.
This change is not backwards compatible with the previous data
format so any existing data directories need to be removed before
using this code.
This commit fixes the `pilosactl import` command to import data files
across an entire cluster of machines.
A `pilosactl config` command is also added to provide a default config.
This commit adds integration testing for the `cmd/pilosa` package.
It uses randomly generated `set()` data and verifies the data using `get()`
both immediately after the insert and after restart.
This commit attaches the mmap-backed roaring bitmaps as storage
to the fragments. Currently snapshotting is not supported from
Pilosa so the WAL will grow indefinitely, however, it is not a
difficult change to make.
This commit adds an implementation of roaring bitmaps that can be
used with mmap files and also allow for delta changes that are
appended to the end of the file as a write-head log.
This commit adds `set()` execution to the Executor. When a set is
issued and the replication factor is greater than 1 then the
query will be forwarded to all other nodes that own the partition.
Currently there is not a way to recover from a `set()` that only
succeeds on some nodes.
This commit refactors the pilosa codebase. It makes several major
changes:
* Removes bitmap handles
* Removes dispatch/hold/transport
* Removes etcd dependency
* Adds consistent hash ring for slice placement
* Refactors parser/lexer
* Adds strong typing to PQL AST
* Flattens package hierarchy
This commit simplifies Fragment by replacing the request/response channels
with a `sync.Mutex` to restrict access. This also simplifies the
`FragmentContainer` code which can largely be removed now since most of
the methods are simply wrappers around `GetFragment()` and `Fragment`.
