[Bug 1990978] Re: Raft bug: OVSDB leadership transfers every 10-20 min after initial compaction

Edward Hope-Morley 1990978 at bugs.launchpad.net
Wed Sep 28 11:41:58 UTC 2022


** Patch added: "lp1990978-jammy.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/openvswitch/+bug/1990978/+attachment/5619787/+files/lp1990978-jammy.debdiff

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https://bugs.launchpad.net/bugs/1990978

Title:
  Raft bug: OVSDB leadership transfers every 10-20 min after initial
  compaction

Status in Ubuntu Cloud Archive:
  New
Status in Ubuntu Cloud Archive yoga series:
  New
Status in openvswitch package in Ubuntu:
  New
Status in openvswitch source package in Jammy:
  New
Status in openvswitch source package in Kinetic:
  New

Bug description:
  First compaction starts after 24 hours, or earlier after doubling of
  DB size.

  Subsequent compactions will trigger every 10-20 min.

  The OVS version hitting this issue:
  ovs-vsctl (Open vSwitch) 2.17.2

  Commit ID that fixes the issue is:
  https://github.com/openvswitch/ovs/commit/a32a4e1fa2d3fad284834d4b7bccc2e71d33f9da

  https://github.com/openvswitch/ovs/commit/dfc3e65c8191f5dc375337c23aed128b5c0d7781
  (2.17 branch patch)

  Testcase:
  Trigger compactions by using command line tool:
  ovs-appctl -t /var/run/ovn/ovnsb_db.ctl ovsdb-server/compact
  Check for leadership transfers using:
  sudo grep "Transferring leadership" /var/log/ovn/ov* | grep ovsdb-server-sb.log
  There should be a new entry every 10-20min.

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