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  1. Couchbase Server
  2. MB-28972

Memcached log spammed from N1QL related messages

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Details

    • Untriaged
    • Centos 64-bit
    • Unknown

    Description

      Build - 2311

      cbcollects:

      https://s3.amazonaws.com/bugdb/jira/MB-28854/collectinfo-2018-03-28T094130-ns_1%40172.16.12.67.zip (eventing)
      https://s3.amazonaws.com/bugdb/jira/MB-28854/collectinfo-2018-03-28T094130-ns_1%40172.16.12.68.zip - (index + n1ql)
      https://s3.amazonaws.com/bugdb/jira/MB-28854/collectinfo-2018-03-28T094130-ns_1%40172.16.12.69.zip (kv)
      https://s3.amazonaws.com/bugdb/jira/MB-28854/collectinfo-2018-03-28T094130-ns_1%40172.16.12.70.zip (kv)

      While debugging Eventing component level system tests on MB-28854, noticed memcached logs were spammed by n1ql related messages

      _  sys_test_logs head cbcollect_info_ns_1@172.16.12.70_20180328-094131/memcached.log
      		 
      ==============================================================================
      		 
      Memcached logs
      		 
      ['sh', '-c', 'cd "$1"; for file in $(ls -tr memcached.log.*); do cat "$file"; done', '--', '/opt/couchbase/var/lib/couchbase/logs']
      		 
      ==============================================================================
      		 
      2018-03-28T13:55:40.020003Z INFO ---------- Opening logfile: /opt/couchbase/var/lib/couchbase/logs/memcached.log.000065.txt
      		 
      2018-03-28T13:55:40.014130Z INFO 59: HELO [GoMemcached] XATTR, JSON [ 172.16.12.68:38444 - 172.16.12.70:11210 (not authenticated) ]
      		 
      2018-03-28T13:55:40.014474Z INFO 59: Client 172.16.12.68:38444 authenticated as <ud>@cbq-engine</ud>
      		 
      2018-03-28T13:55:40.016188Z INFO 3: HELO [GoMemcached] XATTR, JSON [ 172.16.12.68:38596 - 172.16.12.70:11210 (not authenticated) ]
      		 
      2018-03-28T13:55:40.016570Z INFO 3: Client 172.16.12.68:38596 authenticated as <ud>@cbq-engine</ud>
      		 
      2018-03-28T13:55:40.018625Z INFO 59: HELO [GoMemcached] XATTR, JSON [ 172.16.12.68:38736 - 172.16.12.70:11210 (not authenticated) ]
      		 
      _  sys_test_logs grep "GoMemcached" cbcollect_info_ns_1@172.16.12.70_20180328-094131/memcached.log | wc -l
      		 
      839434
      		 
      _  sys_test_logs grep "cbq-engin" cbcollect_info_ns_1@172.16.12.70_20180328-094131/memcached.log | wc -l
      		 
      839433

      As a result memcached log just has 1 hr worth of log information, which makes things difficult to debug on system test kind of set up.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. MB-28842 Thousands of sockets in TIME_WAIT state during system test

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

          Bug - A problem which impairs or prevents the functions of the product. MB-28854 Eventing is not listening to dcp even when agg_queue_size is 0

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          For Gerrit Dashboard: MB-28972
          # Subject Branch Project Status CR V
          92122,2 MB-28972 lots of helos in memcached log master query Status: MERGED +2 +1
          92416,3 MB-29028. Reduce Refresh() master go-couchbase Status: ABANDONED +2 0
          92417,2 MB-29028. Avoid ks.Count() on primary scan master query Status: MERGED +2 +1

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              vikas.chaudhary Vikas Chaudhary
              asingh Abhishek Singh (Inactive)
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              Dates

                Created:
                Updated:
                Resolved:

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