* start implementing arangosearch cluster tests.
* backport: ensure view lookup is done via collectionNameResover, ensure updateProperties returns current view properties
* first attempt to fix failing tests
* refactor cluster wide view creation logic
* if view is not found in the new plan then check the old plan too
* ensure the cluster-wide view is looked up in vocbase as well on startup/recovery
* do not store cluster-wide IResearchView in vocbase
* move stale view cleanup to the shared pointer deleter, address test failures
* do not print warning
* enable arangosearch tests by default
* fix catch tests
* address icorrect return value for cluster-wide links
* address some issues with test failures due to cluster-view allocated within TRI_vocbase_t
* simplify per-cid view name, address 'catch' test failures
* ensure IResearchViewNode volatility is properly calculated in cluster
* invoke callbacks directly in AgencyMock instead of waiting for timeout
* ensure view updates via JavaScript always use the latest view definition
* pass a list of shards to `IResearchViewDBServer::snapshot`
* extend cluster aql tests
* fixes after merge
* fix class/struct inconsistencies
* comment failing tests
* remove debug logging
* add debug function
* tests cleanup
* simplify upcoming merge: pass resolver from a side
* backport: move all transaction status callback logic to Methods
* add changes missed from previous commit
* fix js and ruby tests
* more tests for IResearchViewNode
* pass transaction to IResearchViewDBServer::snapshot, address IResearchViewDBServer tests segfault
* pass transaction to IResearchView::snapshot instead of transaction state
* temporarily add trace log output to tests to try to find the cause of the core dump on Jenkins
* add more temporary debug output to trace down the segfault on Jenkins
* add even more temporary debug output to trace down the segfault on Jenkins
* ensure Vieew related maps are cleared during shutdown
* reset ClusterInfo::instance() before DatabaseFeature::unprepare()
* remove extraneous debug output
* missed line from previous commit
* uncomment required line
* add nullptr checks to RocksDBIndexFactory::prepareIndexes(...) similar to the ones in MMFilesIndexFactory::prepareIndexes(...)
* attempt to fix deadlock in tests
* add comment as per reviewer request
* fix aql test suite name
* add some debug logging
* address deadlock between ClusterInfo::loadPlan() and CollectionNameResolver::localNameLookup(...)
* eplicitly state which index definition failed in the log message
* use vocbase from shard-view isntead just in case
* explicitly state which index definition failed in the log message
* do not create shard-view instances from cluster-link instances (only register existing ones)
* add some tests
* add initial implementation of scatter view rule and node
* add tests for `IResearchViewNode` and `IResearchViewScatterNode`
* add missing check
* modify IResearch execution nodes to use references instead of pointers
* use view id in searialized `ExecutionNode` representation instead of the name
* add cluster mode stubs and checks
* very first attempt to distribute IResearchViewNode
* further implementation of cluster-wide arangosearch views
* fix invalid json format
* add tests for coordinator iresearch view
* allow to retrieve a list of existing views on a coordinator
* more tests for coordinator iresearch view
* some fixes to enable query explanation
* remove Collection dependency from RemoteNode
* remove unnecessary remote ArangoSearch view scatter
* fix explanation appearance
* add some assertions
* minor fixes
* implement IResearchViewCoordinator::updateProperties
* fix view DDL issues
* handle link modifications in DDL operations
* add coordinator implementation of iresearch view links
* fix tests
* further coordinator based view DDL implementation
* further IResearchViewCoordinator implementation
* add initial implementation of AgencyMock
* fix some tests
* code cleanup
* extend test + some fixes
* more tests for IResearchViewCoordinator
* fix tests for IResearchLinkCoordinator
* some fixes after merge
* fix tests
* remove declaration of nonexistent (previously removed) method
* some fixes after review
* remove string duplication
* more tests and fixes
* more fixes and tests
* more tests
* one more test
* fix 'use-after-free' asan error
* fix non-enterprise tests issues
* issue 383.2: backport from iresearch upstream: address issue with _T(...) macro not working when _MBCS is defined on MSVC, backport from iresearch upstream: address issue with _T(...) macro not working when _MBCS is defined on MSVC
* backport: add more tests for IResearchViewDBServer
Vasiliy
Andrey Abramov
Simon
jsteemann