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  1. Couchbase Server
  2. MB-48691

XDCR - gomemcached - closing feed without startFeed may leave stray goroutine running

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Details

    • Bug
    • Resolution: Fixed
    • Major
    • 7.1.0
    • 7.1.0
    • gomemcached
    • None
    • 1

    Description

      Looking at logs from MB-48323, seeing a lot of stray go routines not being closed:

      172.23.123.24_20210903-012026/goxdcr_pprof.log

      		 
      goroutine profile: total 1007
      		 
      505 @ 0x43c9a5 0x44c88f 0x7515d4 0x471841
      		 
      #       0x7515d3        github.com/couchbase/gomemcached/client.(*UprFeed).sendCommands+0xf3    /home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/gomemcached/client/upr_feed.go:340
      		 
       
      		 
      180 @ 0x43c9a5 0x44c88f 0x92b271 0x471841
      		 
      #       0x92b270        github.com/couchbase/goxdcr/component.(*AsyncComponentEventListenerImpl).start+0x250    /home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/goxdcr/component/async_listener.go:68
      		 
       
      		 
      23 @ 0x43c9a5 0x4081ca 0x407f75 0xa9f386 0xa9f205 0x471841
      		 
      #       0xa9f385        github.com/couchbase/goxdcr/backfill_manager.(*BackfillRequestHandler).handleBackfillRequestWithArgs+0x145      /home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/goxdcr/backfill_manager/backfill_request_handler.go:379
      		 
      #       0xa9f204        github.com/couchbase/goxdcr/backfill_manager.(*BackfillRequestHandler).HandleBackfillRequest+0x44               /home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/goxdcr/backfill_manager/backfill_request_handler.go:360

      This is due to new P2P VB master check and merge code, and it is not clear if these will cause connections to not be removed.
      This will need to be fixed regardless.

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        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. MB-48323 [System Test] error retrieving default pool info from target - warnings observed when refreshing remote cluster reference

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MB-48728 [System Test] XDCR OOM killed multiple times

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MB-48672 [System Test] batchGetMeta received fatal error and had to abort - error observed in longevity

          • Major - Major loss of function.
          • Closed
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              neil.huang Neil Huang
              neil.huang Neil Huang
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              Dates

                Created:
                Updated:
                Resolved:

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                  PagerDuty