* First version of ResignLeadership Job.
* Port some performance optimizations from CleanOutServerJob.
* Draft of resigning leadership on shutdown.
* Moved code into Maintenance Feature. Fixed beginShutdown.
* First draft of keeping in sync during controlled leader change.
* Test if server is actually the leader in plan.
* Update changelog.
* Added oldLeader check for set-the-leader request.
* Small fixes.
* 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
* Removed leftover merge conflict in documentation block
* 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
* 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
* fixed ires tests
* fixed wrong assert
* properly check uint
* repl factor attr check
* adjusted test to be more preciese now
* Fixed race on atomics comparison
* Fixed invalid number type
* Update tests/js/common/shell/shell-cluster-collection.js
Co-Authored-By: Tobias Gödderz <tobias@arangodb.com>
* Review fixes
* More review fixes
* Bug fix 3.4/collection babies (#9033)
* Prepare API to create multiple collections in a single request to ClusterMethods to improve speedup
* Added counter on how many collections are successfully created
* Allow multi collection creation one level higher
* CollectionMethods now allow batch createion of Collections
* Improved array size assertions
* Now a graph is createad within a single roundtrip in the agency.
* Added new header files
* Insert collections in the AGENCY with TTL and a isBuilding flag, collections with this flag should not be visisible in the coordinator
* Added forgotten C++ file
* Fixed a rare race condition, and the failing IResearch Tests
* readded callback on DONE, otherwise lists are out of sync
* Fixed assertions to let mocked tests pass...
* Fixed community cluster
* Started fixing IResearch analyzer test, catch-tests are failing ;(
* Solved missed merge-conflict
* Added helper functions in AnalyzerFeature-test
* Refactoring AnalyzerTest Section-Auth
* Refactoring AnalyzerTest Section-Emplace-Duplicates
* Refactoring AnalyzerTest Section-Emplace-Error-Cases. Recovery-Test is now red, it seemed to be green because of invalid test case before.
* Refactoring AnalyzerTest, split GET test into multiple parts, still left 'cluster simulation'.
* Attempt to extract Coordinator / DBServer tests a little bit. This commit starts to break all Coordinator tests. However i am convinced that earlier version did NOT test a cluster situation at all, but some hybrid of SingleServer with full local storage that got told to be a Coordinator from now on, but without any Coordinator setup...
* Temporarly disabled some tests in AnalyzerFeature, as discussed with @gnusi.
* Fixed include guard.
* Temporarily deactivated failing tests
* You shall save your files before you commit...
* Fixed test asserting on plan version, which is now higher than before
* Ignore satellite collections in shrinkCluster in agency.
* Abort RemoveFollower job if not enough in-sync followers or leader failure.
* Break quick wait loop in supervision if leadership is lost.
* In case of resigned leader, set isReady=false in clusterInventory.
* Fix catch tests.
* Decoupled IO handling from Scheduler.
* Fixed SSL start up bug.
* Replaced Scheduler with new worker farm implementation.
* Added minimal statistics and info string for Scheduler.
* Added support for timed submissions.
* Updated delayed submission api. Updated code that used timers.
* Extracted new Scheduler into a virtual parent class. The implementation can now depend on the usecase.
* Signal handler now working.
* Changed threads names, `_stop` is atomic, check for failure during thread start + exception handling like old scheduler did.
* Commented on source code and added TODOs.
* Played around with start-stop-conditions
* Play around with start stop condition.
* start stop cond
* Sart Stop Conditions
* Removed bad cv_status check.
* Bug fix: now compare the actual objects instead of pointer values. Setup t1 and t2 depending on the thread id.
* Moved most of the stuff now unrelated to the Scheduler to GeneralServer. Got rid of JobGuard.
* Instead of waiting for a thread to terminate, put it on a clean up list and check for its termination in each supervisor run.
* Allow detaching long running threads.
* Fixed test mock.
* Updated the WorkHandle logic. Removed post functions.
* Fixed crash when obtaining shared_ptr from this in destructor.
* Added lost mutex.
* Fixed memory leak.
* Fixed merge bug.
* Changed a lot of code to optimize the scheduler.
* Fixed bug of invalidated iterator. Dont remove task on shutdown at different places. Let scheduler threads run until queue is empty.
* Only by value calls to queue.
* Added options again.
* Clean up of code.
* UI Request Lane added.
* Bug fixes in Scheduler.
* Applied reformat.
* Use sigaction.
* Added some DEBUG output for replication rest handler
* Some more debug logging.
* Increased the priority of the ReplicationHandler. This way we will not get stuck with locks that cannot be canceled. Also cancel the lock on the correct database.
* Added extensive log output for replication thins
* Added tombstones to RestReplicationHandler. In a very unlikely case the cancel of a lock can be executed BEFORE the code that actually registers the lock, in this case we will now write a tombstone and do not lock.
* Revert "Added extensive log output for replication thins"
This reverts commit 6d4e37ea1e59e3b3457336019cc7dbc4c979504d.
* Added extensive log output for replication things, now in ERR level instead of MAINTAINER only
* Now actually use hours for synchronization
* React to errors under soft lock if they show up.
* Added a retry loop to increase the read-lock timer.
* Added more timeing output in RocksDB collection internals to figure out why the followers are dropped
* Tweaked RocksDB options
* Revert "Tweaked RocksDB options"
This reverts commit 2bf9c43280beda4792c47d079387fe5154cdd896.
* Removed debug output
* Applied all requested changes by goedderz
* Deleted unused variable