[ovs-build] Passed: ovsrobot/ovs#1749 (series_137577 - 3945c28)

Travis CI builds at travis-ci.org
Mon Oct 21 20:43:33 UTC 2019

Build Update for ovsrobot/ovs

Build: #1749
Status: Passed

Duration: 4 mins and 42 secs
Commit: 3945c28 (series_137577)
Author: Numan Siddique
Message: ovsdb-server: Allow replication from older schema version servers.

Presently, replication is not allowed if there is a schema version mismatch between
the schema returned by the active ovsdb-server and the local db schema. This is
causing failures in OVN DB HA deployments during uprades.

In the case of OpenStack tripleo deployment with OVN, OVN DB ovsdb-servers are
deployed on a multi node controller cluster in active/standby mode. During
minor updates or major upgrades, the cluster is updated one at a time. If
a node A is running active OVN DB ovsdb-servers and when it is updated, another
node B becomes active. After the update when OVN DB ovsdb-servers in A are started,
these ovsdb-servers fail to replicate from the active if there is a schema
version mismatch.

This patch addresses this issue by allowing replication even if there is a
schema version mismatch only if all the active db schema tables and its colums are
present in the local db schema.

This should not result in any data loss.

Signed-off-by: Numan Siddique <numans at ovn.org>
Signed-off-by: 0-day Robot <robot at bytheb.org>

View the changeset: https://github.com/ovsrobot/ovs/compare/a6028d3abb10^...3945c286e8fe

View the full build log and details: https://travis-ci.org/ovsrobot/ovs/builds/600877551?utm_medium=notification&utm_source=email


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