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  1. Couchbase Server
  2. MB-18965

[FTS] rebalance: MCP rebalance stuck when cbft cant connect to memcached

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Details

    • Bug
    • Resolution: Incomplete
    • Major
    • 5.0.0
    • 4.5.0
    • fts
    • None
    • Untriaged
    • Unknown

    Description

      Splitting this off as a separate issue from https://issues.couchbase.com/browse/MB-18934

      Using cluster_run dev OSX environment, 3 nodes, using Aruna's script...

      ./testrunner -i INI_FILE.ini get-cbcollect-info=True,get-logs=False,stop-on-failure=False,index_retry=10,GROUP=P0 -t fts.moving_topology_fts.MovingTopFTS.rebalance_out_during_index_building,items=30000,cluster=D,F,F,index_replicas=1,standard_buckets=2,sasl_buckets=2,GROUP=P0
      

      Finally, I did see FTS rebalance get into a seeming "stuck" state, where it could no longer connect to memcached...

      2016-03-29T14:51:21.659-07:00 [INFO] feed_dcp: OnError, name: sasl_bucket_1_index_1_3d56f8785bd9ef60: bucketName: sasl_bucket_1, bucketUUID: , err: worker connect, server: 10.17.6.158:12000, err: dial tcp 10.17.6.158:12000: getsockopt: operation timed out
      2016-03-29T14:51:21.659-07:00 [INFO] main: meh.OnFeedError, srcType: couchbase, err: worker connect, server: 10.17.6.158:12000, err: dial tcp 10.17.6.158:12000: getsockopt: operation timed out
      2016-03-29T14:51:23.739-07:00 [INFO] feed_dcp: OnError, name: sasl_bucket_1_index_1_3d56f8785bd9ef60: bucketName: sasl_bucket_1, bucketUUID: , err: worker connect, server: 10.17.6.158:12000, err: dial tcp 10.17.6.158:12000: getsockopt: operation timed out
      2016-03-29T14:51:23.739-07:00 [INFO] main: meh.OnFeedError, srcType: couchbase, err: worker connect, server: 10.17.6.158:12000, err: dial tcp 10.17.6.158:12000: getsockopt: operation timed out
      

      RELATED, after it gets into this state of "stuck rebalance", doing a manual telnet to port 12000 also fails.

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              steve Steve Yen
              steve Steve Yen
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