Uploaded image for project: 'Couchbase Server'
  1. Couchbase Server
  2. MB-32282

[System Test] : Memcached OOM killed on 2 different nodes

    XMLWordPrintable

Details

    • Bug
    • Resolution: Duplicate
    • Critical
    • 6.0.1
    • 6.0.1
    • secondary-index
    • component cluster

    Description

      Build : 6.0.1-1992
      Test : -test tests/2i/test_idx_rebalance_replica_vulcan_kv_opt.yml -scope tests/2i/scope_idx_rebalance_replica_vulcan.yml
      Scale: 3
      Iteration : 3

      Seeing memcached getting OOM killed 2 times on 2 different nodes - 172.23.104.16 & 172.23.104.18

      On .18,
      [Fri Dec 7 11:29:32 2018] Out of memory: Kill process 26360 (memcached) score 689 or sacrifice child
      [Fri Dec 7 11:29:32 2018] Killed process 26360 (memcached) total-vm:20996316kB, anon-rss:16878860kB, file-rss:0kB, shmem-rss:0kB

      On .16
      [Fri Dec 7 12:05:41 2018] Out of memory: Kill process 30725 (memcached) score 684 or sacrifice child
      [Fri Dec 7 12:05:41 2018] Killed process 30725 (memcached) total-vm:20502756kB, anon-rss:16746964kB, file-rss:0kB, shmem-rss:0kB
      [Fri Dec 7 12:05:41 2018] memcached: page allocation failure: order:0, mode:0x2015a
      [Fri Dec 7 12:05:41 2018] CPU: 1 PID: 30725 Comm: memcached Not tainted 3.10.0-693.5.2.el7.x86_64 #1

      On 16, projector also got OOM killed around the same time. Tracking this issue via a different bug.
      [Fri Dec 7 12:05:41 2018] Out of memory: Kill process 7008 (projector) score 177 or sacrifice child
      [Fri Dec 7 12:05:41 2018] Killed process 7008 (projector) total-vm:4841764kB, anon-rss:4339896kB, file-rss:0kB, shmem-rss:0kB

      The test was rebalancing out a KV node when the OOM killing on .18 happened. It was rebalancing in a KV node when the OOM killing on .16 happened.

      Attachments

        No reviews matched the request. Check your Options in the drop-down menu of this sections header.

        Activity

          People

            mihir.kamdar Mihir Kamdar (Inactive)
            mihir.kamdar Mihir Kamdar (Inactive)
            Votes:
            0 Vote for this issue
            Watchers:
            4 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Gerrit Reviews

                There are no open Gerrit changes

                PagerDuty