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Author SHA1 Message Date
Michael Hackstein d5840c125a Bug fix 3.5/min replication factor (#9524)
* Cherry-pick minReplicationFactor

* Bug fix/failover with min replication factor (#9486)

* Improve collection time of IResearchQueryOptimizationTest

* Added a minReplicationFactor field in Collections. It is not possible to modify it yet and noone cares for it

* Added some assertion son minReplicationFactor

* Transaction API will now reject writes as soon as minimal replication factor is NOT fulfilled

* added minReplicationFactor to the user interface, preparation for the collection api changes

* added minReplicationFactor to VocBaseCollection, RestReplicationHandler, RestCollectionHandler, ClusterMethods, ClusterInfo and ClusterCollectionCreationInfo

* added minReplicationFactor usage to tests

* TODO TEMOPORARY COMMIT FOR TESTING PLEASE REVERT ME

* minReplicationFactor now able to change via collection  properties route

* fixed wrongly assert

* added minReplicationFactor to the graph management ui

* added minReplicationFactor to the gharial api

* Fixed off-by-one error in minReplicationFactor. We actually enforced one more.

* adjusted description of minReplicationFactor

* FollowerInfo Refactoring

* added gharial api graph creation tests with minimal replication factor

* proper cleanup of shell collection tests, removed lots of duplicate code, preparation for some new tests

* added collection create tests using invalid/valid names, replicationFactor and minReplicationFactor

* Debug logging

* MORE Debug logging

* Included replication fast lane

* Use correct minreplicationfactor

* modified debug logging

* Fixed compileissues

* MORE Debug logging

* MORE Debug logging

* MORE Debug logging

* MORE Debug logging

* MORE Debug logging

* MORE Debug logging

* MORE Debug logging

* Revert "MORE Debug logging"

This reverts commit dab5af28c0.

* Revert "MORE Debug logging"

This reverts commit 6134b664bd.

* Revert "MORE Debug logging"

This reverts commit 80160bdf3b.

* Revert "MORE Debug logging"

This reverts commit 06aabcdfe1.

* Removed debug output

* Added replication fast lane. Also refactored the commands as i cannot take it any more...

* Put some requests of RocksDBReplication onto CATCHUP Lane.

* Put some requests of MMFilesReplication onto CATCHUP Lane.

* Adjusted Fast and MED lane usage in Supervised scheduler

* Added changelog entry

* Added new features entry

* A new leader will now keep old followers in case of failover

* Update arangod/Cluster/ClusterCollectionCreationInfo.cpp

Co-Authored-By: Tobias Gödderz <tobias@arangodb.com>

* Fixed JSLINT

* Unified lane handling of replication handlers

* Sorry forgotten in last commit

* replaced strings with static strings

* more use of static strings

* optimized min repl description in the ui

* decr initial loop variable

* clean up of the createWithId test

* more use of static strings

* Update js/apps/system/_admin/aardvark/APP/frontend/js/views/collectionsView.js

Co-Authored-By: Tobias Gödderz <tobias@arangodb.com>

* Added some comments on condition, renamed variable as suggested in review

* Added check for min replicationFactor to be non-zero

* Added assertion

* Added function to modify min and max replication factor in one go

* added missing semicolon

* rm log devel

* Added a second information to follower info that can keep track of followers that have been in sync before a failover has taken place

* Maintenance reports previous version now to follower info. instead of lying by itself. The Follower Info now gets a failover save mode to report insync followers

* check replFactor against nr dbservers

* Add lie reporting in CURRENT

* Reverted most of my recent commits about Failover situation. The intended plan simply does not work out

* move replication checks from logical collection to rest collection handler

* added more replication tests

* Include assert only if we are not in gtest

* jslint

* set min repl factor to zero if satellite collection

* check replication attributes in v8 collection

* Initial commit, old plan, does not yet work

* fixed ires tests

* Included FailoverCandidates key. Not fully implemented

* fixed wrong assert

* unified in sync follower reporting

* fixed compiler errors

* Cleanup locking, and fixed potential deadlocks

* Comments about locking order in FollowerInfo.

* properly check uint

* Keep old leader as potential failover candidate

* Transaction methods now use followerInfo to check if the leader can write, this might have the sideeffect that 'failoverCandidates' are updated

* Let agency check failoverCandidates if possible

* Initialize member variables

* Use unified follower reporting in DBServerAgencySync

* Removed obsolete variable, collecting it somewhere else

* repl factor attr check

* Reimplemented previous followers, second attempt now. PhaseOne and PhaseTwo can now synchronize on current.

* Fixed assertion, forgot an off-by-one

* adjusted test to be more preciese now

* Fixed failove candidates list

* Disable write on dropping too many followers

* Allow to run updateFailoerCandidates multiple times with same leader.

* Final fixes, resilience tests now green, crossing fingers for jenkins

* Fixed race on atomics comparison

* Fixed invalid number type

* added nullptr handling

* added nullptr handling

* Removed invalid assert

* Make takeover of leadership an atomic operation

* Update tests/js/common/shell/shell-cluster-collection.js

Co-Authored-By: Tobias Gödderz <tobias@arangodb.com>

* Review fixes

* Fixed creation code to use takeoverLeadership

* Update arangod/Cluster/FollowerInfo.h

Co-Authored-By: Tobias Gödderz <tobias@arangodb.com>

* Applied review fixes

* There is no timeout

* Moved AQL + Pregel to INTERNAL_AQL lane, which is medium priority, to avoid deadlocks with Sync replication

* More review fixes

* Use difference if you want to compare two vectors...

* Use std::string ...

* Now check if we are in recovery mode

* Added documentation for minReplicationFactor

* Added readme update as well in documenation

* Removed merge conflict leftovers 0o, i should not trust the IDE

* Update js/apps/system/_admin/aardvark/APP/frontend/js/views/collectionsView.js

Co-Authored-By: Jan <jsteemann@users.noreply.github.com>

* Update js/apps/system/_admin/aardvark/APP/frontend/js/views/collectionsView.js

Co-Authored-By: Jan <jsteemann@users.noreply.github.com>

* Update Documentation/Books/Manual/Architecture/Replication/README.md

Co-Authored-By: Jan <jsteemann@users.noreply.github.com>

* Update CHANGELOG

Co-Authored-By: Jan <jsteemann@users.noreply.github.com>

* Update Documentation/Books/Manual/DataModeling/Collections/DatabaseMethods.md

Co-Authored-By: Jan <jsteemann@users.noreply.github.com>

* Update Documentation/Books/Manual/ReleaseNotes/NewFeatures35.md

Co-Authored-By: Jan <jsteemann@users.noreply.github.com>

* Update Documentation/DocuBlocks/Rest/Collections/1_structs.md

Co-Authored-By: Jan <jsteemann@users.noreply.github.com>

* Update js/apps/system/_admin/aardvark/APP/frontend/js/views/graphManagementView.js

Co-Authored-By: Jan <jsteemann@users.noreply.github.com>

* Update js/apps/system/_admin/aardvark/APP/frontend/js/views/graphManagementView.js

Co-Authored-By: Jan <jsteemann@users.noreply.github.com>

* Update Documentation/DocuBlocks/Rest/Graph/1_structs.md

Co-Authored-By: Jan <jsteemann@users.noreply.github.com>

* Apply suggestions from code review

Co-Authored-By: Jan <jsteemann@users.noreply.github.com>

* Adepted review requests, thanks for finding!

* Removed unnecessary const

* Apply suggestions from code review

Co-Authored-By: Jan <jsteemann@users.noreply.github.com>

* Moved initilization of variable more downwards

* Apply lock before notify_all()

* Remove documentation except DocuBlocks, covered by PR in docs repo

* Remove accidental indent
2019-07-22 17:48:34 +03:00
Jan b6df220821
cleanup replication contexts (#8630) 2019-04-01 09:35:08 +02:00
Frank Celler ac9f375fb5 big reformat 2018-12-26 00:54:03 +01:00
Jan 43b53bea57
document the RequestLanes, and "fix" the lanes of a few handlers (#6152) 2018-08-15 11:58:16 +02:00
Tobias Gödderz fc3e11dbbc Async AQL (#5806)
* Modified header to new initializeCursor API

* Adapted initializeCursor to DONE/WAITING API. Compiles but not tested and no one reacts to WAITING state, it is not returned anywhere yet

* Subqueries now expect a WAITING return from initilize cursor. However they will just return a nullptr and pretend the query is empty, this will be fixed later

* First attempt to simulate thread waiting over information within the query

* Small fix to allow for isDirect handlers to go to sleep.

* Waiting in the necessary places now for the async request to be send.

* Thank you auto-casting compiler, you are totally right i absolutely wanted to use this bool value as an index in may Array. How could i possibly not want to use it here?

* Include cond-var header

* Fixed mutex/cond_var usage

* Added oldAPI wrappers in AQL Blocks for get/skip some variants. This Commit compiles but is NOT tested

* Let getSome now return unique_ptr of AqlItemsBlocks. Also implemented the async variant of getSome in subqueries.

* Removed all references to OLD implementations in AQL. only the base wrappers are allowed to call OLD functions from now on. Now the testing part starts

* Fixed endless virtual recursion

* Implemented new getOrSkip API in SortBlock

* Implemented new getOrSkip API in LimitBlock

* Initilaize all variables

* Fixed logic bug in SubqueryBlock

* getBlock in ExecutionBlock now returns a state. All blocks need to handle this properly!

* Createad a wrapper getBlockOld that servers the old sync api and is used now in AQL. To be replaced overtime.

* Added IndexBlock::skipSome and IndexBlock::getSome

* getBlock now returns its old return value along with the state

* Switch from getBlockOld to getBlock in IndexBlock::skipSome

* Switch from getBlockOld to getBlock in IndexBlock::getSome

* ShortestPathBlock::skipSome is not implemented! Added a regression test

* Attempt to fix SubQueryResult memory management

* Fixed LIMIT Block

* Moved from ShortestPathBlock::getSomeOld to ::getSome

* Implemented ASYNC api on SingletonBlock

* Adapted EnumerateCollectionBlock to new async API

* Fixed FilterBlock and adapted return block to async API

* Adapted NORESULTS block to async AQL api.

* Adapted Modification Blocks to async API

* Fixed some initialize cursor functions to reset values required during get/skipSome

* First steps to adapt ClusterNodes to Async AQL api. Not there yet, need to implement the core still

* Added asnyc implementation for xxxForShard in ClusterBlocks. This commit changes internal logic of _doneForShard. Needs additional testing as soon as everything is in place.

* Adapted CalculationBlock to async API

* Adapted TraversalBlocks to ASYNC Aql. This is not optimal yet, we need a better decission if we are DONE or not on RETURN

* Adapted EnumerateListBlock to Async AQL api

* Adapted RemoteBlock to ASYNC API in getSome/skipSome. The whole thing is now LIVE in the cluster. Exetensive testing to be started now

* Fixed IndexBlock WAITING behaviour if Waiting occurs during a index processing

* Adapted IReasearchViewBlock to ASYNC AQL API

* Fixed SortingGatherBlock in WAITING state.

* Adapted IResearch ExecutionBlockMock to Async API

* Unified the HASMORE/DONE distinction. Code is much more readable now and harder to get incorrect 👍

* Implemented tonly heoretically reachable function of non void function.

* Fixed last commit

* Added inline TODO comments

* fix warning

* Fixed a clearing logic bug in RemoveNodes

* Fixed Error Handling in RemoteBlocks. Also fixed a logic bug (true/false simply has a 50% chance of getting it wrong) in Distribute and Scatter.

* remove unused methods

* Fixed failure test

* implement skipping

* Moved the Query Waiting out of the ExecutionEngine.

* changed one of the collect blocks

* Removed _upstreamState from ExecutionBlockMock, that is in the base-class now

* Added a Test Mock for a an ExecutionBlock that simulates the WAITING/HASMORE/DONE api.

* do not check "hasMore" if not necessary

* Added DistinctCollectBlock::getOrSkipSome from ~Old and changed its return type

(still uses getBlockOld)

* Save state to resume in DistinctCollectBlock::getOrSkipSome

* Extracted redundant code

* fixed some ops

* added one more test

* fix endless blocking

* fix compile error

* fix test

* Refactored HashedCollectBlock::getOrSkipSome

* Return blocks to the manager

* Replaced usage of getBlockOld in HashedCollectBlock::getOrSkipSome

* remove unused shutdown calls, simplify ownership for expressions

* Removed superfluous variable

* Capture const variable by value

* Removed SortedCollectBlock::getOrSkipSomeOld in favour of getOrSkipSome

* Added a working version of SortedCollectBlock::getOrSkipSome

Has yet to be cleaned up

* Removed isTotalAggregation special treatment

* On no input, return a group of nulls (instead of no group at all)

* Bugfixes

* Simplified code

* Move return to the end, eliminate duplicate code

* Corrected skipped count in HashedCollectBlock

* Aligned getNextRow() implementations

* Added comments

* some cleanup

* fix potential memleak

* Bugfix

* Fixed failure tests

* Removed usage of getBlockOld in ExecutionBlock::getOrSkipSome

* Replaced hasMore with an async implementation (mostly)

* Removed getBlockOld()

* Added hasMoreState to the AQL API (and renamed hasMore methods to hasMoreState)

* RemoteBlock now uses the async hasMoreState route

* remove job queue

* options

* Bugfixes in the async implementation of LimitBlock

* LimitBlock::getOrSkipSome now always skips when calculating the fullcount

* fix compile warnings

* restrict threads

* Fixed api of Waiting ExecBlockMock. Unused yet

* Made SortedGatherBlock async-capable

* Removed nonEmptyIndex hack

* Removed duplicate traceGetSome~ calls, moved all to getSome

* Added asserts before replacing getNr*Registers

* Added a TODO note and a comment

* Removed getSomeWithoutRegisterClearoutOld()

* Removed skip()

* Removed common code by using getNr*Registers()

* Use getNr*Registers() in the TraversalBlock as well

* started to add lane

* started to add lane

* added lane

* completed lane

* removed debug output

* fixed merge

* Began working on a test suite for AQL tracing/profiling

* Added more tests and asserts in aql-profiler

* Made some ExecutionBlocks final

* Added a type enum to all blocks and the per-block stats

* Add block type to stats nodes when tracing AQL on block level

* Removed initializeCursor call from instantiateFromPlan

* Avoided additional getSome calls after DONE

* Added more profiler tests

* Refactored ExecutionBlock::getOrSkipSome and fixed two bugs

- set _upstreamState also when skipping
- explicitly use xecutionBlock::getHasMoreState()

* Bugfix: update state

* Reuse parent _skipped wherever possible; rename where not (LimitBlock)

* Simplified SortedCollectBlock::getOrSkipSome and reused general pattern & code

* Implemented missing virtual function (with USE_FAILURE)

* Reset neccessary values during initializeCursor

* Simplified code in EnumerateListBlock a little

* Added a test for DistinctCollectBlock in aql-profiler

* Avoid redundant getSome calls in DistinctCollectBlock

* fix compilation

* Fixed DistinctCollectBlock profiler test

* Added a second profiler test for the DistinctCollectBlock

* Added a profiler test for EnumerateCollectionBlock

* Bugfix in EnumerateListBlock

* added --server.fifoN-size

* Simplified EnumerateCollectionBlock::getSome

* Simplified EnumerateCollectionBlock::getSome, and return HASMORE less often when DONE

* Fix testEnumerateCollectionBlock1 for mmfiles

* do not pass by reference

* Fixed compile error

* fixed merge conflicts

* Added profiler tests for EnumerateCollectionBlock

* Test fix for mmfiles

* Fixed IResearch tests

* Bugfix in DistinctCollectBlock and a regression test

* Updated comment

* Bugfix for query statistics in cluster

* Check plan in distinct test

* Fix aql-profiler tests in cluster

* Removed unused line / bugfix for single server test runs

* This commit implements waking up of AQL queries. (#5651)

* Non-compiling intermediate commit for handover.

* Make branch compile again

* Started implementation of continueable rest cursor handler by moving the callbacks to the outer part. This is not yet fully tested!

* Made finalizeExecute noexcept. We cannot react to this errors as the response was potentially written before. Also introduced continueExecution in the RestHandler engine.

* First successful query wakeup.

* The wakeup callback now posts on the scheduler directly. A resthandler only needs to provide a callback that encapsulates the continueExecution call on this handler

* renamed finalizeExecute to shutdownExecute

* Added a differentiation between Handler and Callback in Query continuation. Handler will be posted in IO service. Callback will be executed directly

* fix audit log

* Removed callback from deleteQueryCursor. This cannot be waiting

* use CONDITION_LOCKER

* removed yet another thread-local variable

* Fixed forward declaration

* Made RestAqlHandler repeatable

* Use defer to close the query in RestAqlHandler. Now waiting will close the query as well.

* Added a mutex in the RestHandlers to make sure if the callback over network is too fast that there is only one Thread running in the RestHandler

* Captured the GeneralCommTask if it is posted to a RestHandler. This is necessary in the PAUSED case

* Refactoring of _noLockHeader responsibilities. Now the BaseHandler selects them and resets them after it is done. Only Coordinators are allowed to define them if a query is loaded.

* Removed reaction to existing nolockheaders in Coordinator Query Planning Phase

* Removed incorrect assertion.

* Further refactoring of NoLockHeaders. Now there is a wrapper class around it which allows for debugging and logging. The state now seems to be better. Also all non-rest-handler triggered queries clean up the NoLockHeaders properly.

* Fixed UserManager, now deletes nolock headers properly

* Swing to the Symphony of Destruction

* Forgot about community build...

* Fixed compiling of Catch tests

* Fixed community build

* need thread for size

* Made the restSimpleHndler repeatable

* Implemented dump and dumpSync in Cursors, Sync will block a thread, dump allows to wait, only relevant for Streaming cursor

* Reactivated StreamingCursors

* Removed debug output.

* Fixed false query continuation

* Reset thread output to non-debug

* Added missing return statements

* Allow some CollectionMethods to hand-in a context that may contain a transaction. This is meant to honor nolock headers.

* Fixed hidden merge conflict

* Bugfix in aql-profiler.js: use plan.nodes order, not stats

* Added two profiler tests for filter

* Avoid too many getBlock calls in the FilterBlock

* Removed debug output

* RemoteBlock API will now send a done(bool) flag whenever we request documents from remote Servers. It is possible that we are DONE and have a result. The pre 3.4.0 API uses exhausted which is exclusive to a result. This API is still implemented for beckwards compatibility.

* Implemented an executeSync function in AqlQuery. This will block the thread until query execution is complete

* Added another test for FILTER, and one test for the HashedCollectBlock

* Added more tests for HashedCollectBlock; avoid unneccessary getSome calls

* Added an profiler IndexBlock test

* IndexBlock: avoid redundant getSome calls, added missing traceGetSomeEnd calls

* Added a second test profiling IndexBlock

* Added a third test for IndexBlock

* Moved general code to module

* Moved noncluster tests into a separate file

* Split aql-profiler testsuite into three files

* Added profiler tests for LimitBlock

* Added a test for NoResultsBlock

* Added profiler tests for TraversalBlock

* Shutdown of an AQL query is now asynchronous. However in Error-Cases it will be executed in a blocking way still

* Optimized TraversalBlock getSome calls due to new (nightly) test results

* Fixed std::min calls I broke

* Let shutdown calls in AQL wait, if the query is executed successfully.

* Fixed queryResult going out of scope

* fix compile error through merge conflict with devel

* Fixed compiler warning "mismatching tags"

* Removed debug log output

* Added TODO notes

* Fixed test fail due to devel merge

* Fixed some invalid sync waiting implementations

* Added a profiler test for SortBlock

* Added profiler tests for SortedCollectBlock

* Fixed bug introduced by devel merge

* Fixed Remoteblocks ignoring errors!

* Added some more continue Callbacks in used places. And removed debug log

* Removed debug log output

* Suppress clang warnings

* Bugfix: use of invalid stack pointer

* Bugfix: RemoteBlock::shutdown now sends code as int, not string

* Revert "Suppress clang warnings"

This reverts commit 05591649c59743c992edd5e78814edc8ca2a83e0.

* Bugfix: cleanup state in RemoteBlock ::shutdown, ::getSome and ::skipSome

* Bugfix in Subquery shutdown: don't skip subquery shutdown when main query shutdown failed

* Allow copy elision
2018-07-09 14:24:10 +02:00
Simon 35992ad67b Coordinator storage engine (#5405) 2018-05-22 19:30:27 +02:00