- introduce Query Context (Qcx) for managing database-per-shard.
- replaces the MultiTx, so mtx.go is retired and removed.
- introduces the HolderConfig struct and all Holders now have
a path from birth.
- rbf speedups on bitwise writes
- badgerdb is removed due to unresolvable write conflicts.
fixes#703#676
not overflow two big arrays into an invalid array.
recreate badloader from git history, at 85fa67e8. Could not
reproduce this, but lots of container usage
also got updated in the meantime.
Fixes#683
- lmdb as a backend (lmdb.go)
(lmdb is the fastest known transactional storage backend)
- per Tx call statics report enabled with PILOSA_CALLSTAT=true (stattx.go)
- framework for per-shard db (dbshard.go)
- txfactory handles any pair under blue-green testing (txfactory.go)
- enable CGO in Dockerfiles for lmdb
- rbf had races around the new rootRecords cache in tx
- rbf tx needed a write lock on the db now that rootRecords are written
- added a global registry for rbfDB to correctly dedup instances
- implement DeleteFragment, DeleteIndex for rbf
- use badger style keys for rbf to allow content checksumming to be list
containers in the same order
- lots of other integration of rbf into pilosa layer.
- all tests green on RoaringTx
- RoaringTx on by default
- blueGreenTx testing framework available for A-vs-B comparison
of Tx implementations
- flag -tx added to server command line but not wired to
change NewIndex() selection yet.
- 918 green tests, 14 tests red on BadgerTx.
A full list of the 14 red tests on BadgerTx follows.
Note that these red tests represent not defects in BadgerDB
or BadgerTx but rather failures of the pre-existing pilosa infrastructure to yet
be fully adapted from files to using a transactional storage engine.
As such these are tests that RBF should not be expected to
pass yet either.
Fixing the pilosa infrastructure to allow these tests
to go green under Badger is the next and highest priority
order of business, but RBF can get much testing benefit
from the 918 green tests we do have, and hence we merge
as much as we have today.
The 14 red tests when NewIndex() is set to use
BadgerTx are as follows. Note in particular
that pilosa cluster resizing is not working yet under a
transactional store.
TestCluster_ResizeStates/Multiple_nodes,_with_data
TestImportClearRestart/0MaxOpN10000
TestImportClearRestart/1MaxOpN10000
TestImportClearRestart/2MaxOpN10000
TestImportClearRestart/3MaxOpN10000
TestExecutor_Execute_Existence/Row
TestExecutor_ForeignIndex
TestExecutor_Execute_CountDistinct/Distinct
TestExecutor_Execute_CountDistinct/Count(Distinct)
TestExecutor_Execute_CountDistinct/GroupBy(Distinct)
TestExecutor_BareDistinct
TestExecutor_Execute_TopNDistinct/TopN
TestHolderSyncer_IntField/BasicSync
TestHolderSyncer_IntField/MultiShard
Also clean up the license hash checking a bit. We trim vendor early
in find so we don't have to walk the whole vendor tree only to grep
the files out, and we don't check the license hashes of the exceptions,
and the exceptions are now a plain text file of non-regex strings
we match exactly. Also the license hash code is only written once.
This will help us a lot if development on Pilosa continues through
2018 or later.
