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  1. Couchbase Server
  2. MB-20209

Compactor and Memcached terminate unexpectedly, node goes down due to kernel panic

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Details

    • Bug
    • Resolution: Cannot Reproduce
    • Critical
    • 5.0.0
    • 5.0.0
    • 3rd-party

    Description

      Build
      4.5.0-0888

      Testcase (new)
      ./testrunner -i INI_FILE.ini -p get-cbcollect-info=True,get-coredumps=True,get-logs=False,stop-on-failure=False,cluster=D:F:F,GROUP=DGM -t fts.stable_topology_fts.StableTopFTS.create_simple_default_index,cluster=D,F,D+F,dgm_run=1,active_resident_ratio=10,eviction_policy=fullEviction,moss_compact_threshold=20,GROUP=DGM

      Everything goes wrong after 9:18:33PM when each of the nodes encounter tick_timeouts, and one by one, all nodes repeatedly take over as master until all of them go down and memc and compactor crash on .120. Couchbase restarts repeatedly on .120 and then goes into a kernel panic. I had to have IT bring up the node. Attaching cbcollect from all nodes.

      .120 had kv + fts
      .224 and .216 - only fts.

      In descending order of events -

      Control connection to memcached on 'ns_1@172.23.106.120' disconnected: {{badmatch,
                                                                               {error,
                                                                                timeout}},
                                                                              [{mc_client_binary,
                                                                                cmd_vocal_recv,
                                                                                5,
                                                                                [{file,
                                                                                  "src/mc_client_binary.erl"},
                                                                                 {line,
                                                                                  156}]},
                                                                               {mc_client_binary,
                                                      ... show	ns_memcached 000	ns_1@172.23.106.120	9:45:10 PM Mon Jul 18, 2016
       Compactor for database `default` (pid [{type,database},
                                             {important,true},
                                             {name,<<"default">>},
                                             {fa,
                                              {#Fun<compaction_new_daemon.4.92023696>,
                                               [<<"default">>,
                                                {config,
                                                 {30,18446744073709551616},
                                                 {30,18446744073709551616},
                                                 undefined,false,false,
                                                 {daemon_config,30,131072,20971520}},
                                                false,
                                                {[{type,bucket}]}]}}]) terminated unexpectedly: {timeout,
                                                                                                 {gen_server,
                                                                                                  call,
                                                                                                  [{'ns_memcached-default',
                                                                                                    'ns_1@172.23.106.120'},
                                                                                                   {raw_stats,
                                                                                                    <<"diskinfo">>,
                                                                                                    #Fun<compaction_new_daemon.18.92023696>,
                                                                                                    {<<"0">>,
                                                                                                     <<"0">>}},
                                                                                                   180000]}} hide	compaction_new_daemon 000	ns_1@172.23.106.120	9:45:10 PM Mon Jul 18, 2016
      Couchbase Server has started on web port 8091 on node 'ns_1@172.23.105.216'. Version: "4.7.0-888-enterprise".	menelaus_sup 001	ns_1@172.23.105.216	9:43:58 PM Mon Jul 18, 2016
      Node 'ns_1@172.23.105.216' saw that node 'ns_1@172.23.105.224' went down. Details: [{nodedown_reason,
                                                                                           connection_closed}]	ns_node_disco 005	ns_1@172.23.105.216	9:43:52 PM Mon Jul 18, 2016
      Node 'ns_1@172.23.105.216' saw that node 'ns_1@172.23.106.120' went down. Details: [{nodedown_reason,
                                                                                           connection_closed}]	ns_node_disco 005	ns_1@172.23.105.216	9:43:52 PM Mon Jul 18, 2016
      Node 'ns_1@172.23.105.224' saw that node 'ns_1@172.23.106.120' went down. Details: [{nodedown_reason,
                                                                                           net_tick_timeout}]	ns_node_disco 005	ns_1@172.23.105.224	9:42:05 PM Mon Jul 18, 2016
      Node 'ns_1@172.23.106.120' saw that node 'ns_1@172.23.105.216' went down. Details: [{nodedown_reason,
                                                                                           net_tick_timeout}]	ns_node_disco 005	ns_1@172.23.106.120	9:39:35 PM Mon Jul 18, 2016
      Node 'ns_1@172.23.105.224' saw that node 'ns_1@172.23.105.216' went down. Details: [{nodedown_reason,
                                                                                           net_tick_timeout}]	ns_node_disco 005	ns_1@172.23.105.224	9:39:32 PM Mon Jul 18, 2016
      Haven't heard from a higher priority node or a master, so I'm taking over.	mb_master 000	ns_1@172.23.105.224	9:38:34 PM Mon Jul 18, 2016
      Haven't heard from a higher priority node or a master, so I'm taking over.	mb_master 000	ns_1@172.23.105.224	9:36:34 PM Mon Jul 18, 2016
      Haven't heard from a higher priority node or a master, so I'm taking over.	mb_master 000	ns_1@172.23.105.224	9:31:38 PM Mon Jul 18, 2016
      Haven't heard from a higher priority node or a master, so I'm taking over.	mb_master 000	ns_1@172.23.105.224	9:29:34 PM Mon Jul 18, 2016
      Haven't heard from a higher priority node or a master, so I'm taking over.	mb_master 000	ns_1@172.23.106.120	9:28:44 PM Mon Jul 18, 2016
      Haven't heard from a higher priority node or a master, so I'm taking over.	mb_master 000	ns_1@172.23.105.224	9:25:32 PM Mon Jul 18, 2016
      Haven't heard from a higher priority node or a master, so I'm taking over.	mb_master 000	ns_1@172.23.105.224	9:21:34 PM Mon Jul 18, 2016
      Haven't heard from a higher priority node or a master, so I'm taking over.	mb_master 000	ns_1@172.23.105.216	9:19:33 PM Mon Jul 18, 2016
      Haven't heard from a higher priority node or a master, so I'm taking over.	mb_master 000	ns_1@172.23.105.224	9:18:33 PM Mon Jul 18, 2016
      
      

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            apiravi Aruna Piravi (Inactive)
            apiravi Aruna Piravi (Inactive)
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              Updated:
              Resolved:

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