N1QL/FTS use grpc version 1.17.
There seems to be a leak within grpc's resetTransport as pointed out here -
which is addressed by https://github.com/grpc/grpc-go/pull/2985 for version 1.24
Consider upgrading grpc within these projects to v1.24.0?
The leak is coming from context.WithCancel as pointed out here: https://github.com/grpc/grpc-go/issues/2976.
Setting a timeout with context is a workaround for this - by setting a deadline for the datastore.IndexConnection which is handed to n1fty's Search(..). But WithTimeout for context was introduced in 7.0, so this is not a viable workaround for older builds.
|For Gerrit Dashboard: MB-42819|
|140595,2||MB-42819: Upgrade grpc version from 1.17.0 -> 1.24.0||master||cbft||Status: MERGED||+2||+1|
|140596,2||MB-42819: grpc 1.17.0 -> 1.24.0||master||cbftx||Status: MERGED||+2||+1|
|140597,2||MB-42819: grpc 1.17.0 -> 1.24.0||master||n1fty||Status: MERGED||+2||+1|
|140598,2||MB-42819: grpc 1.17.0 -> 1.24.0||master||query||Status: MERGED||+2||+1|
|140601,5||MB-42819: Update grpc and dependents' SHAs for 6.6.x builds||master||manifest||Status: MERGED||+2||+1|