Ubuntu
zookeeper package

Critical bug in 3.4.5 can cause a quorum to not come up after leader loss

Bug #1563977 reported by Ivan Kelly
16
This bug affects 3 people
Affects Status Importance Assigned to Milestone
zookeeper (Ubuntu)
Expired
Undecided
Unassigned

Bug Description

The bug in question
https://issues.apache.org/jira/browse/ZOOKEEPER-1697

This was running on 14.04 LTS (which has 3.4.5). When a snapshot gets large enough, a cluster will not come up because it will timeout while reading the snapshot from a newly elected leader.

This is critical since zookeeper is a basis for many HA systems, so if it doesn't survive a leader crash it becomes useless.

Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in zookeeper (Ubuntu):
status: New → Confirmed
Revision history for this message
Joshua Powers (powersj) wrote :

Hi,

I am cleaning out the zookeeper bugs to see if any are still valid. Trusty has reached its end of life I am not sure if there is any further work to do there. As a result I am marking this incomplete. It is unfortunate that this bug did not receive attention earlier, but the bug does appear to be fixed in these versions: 3.4.6, 3.5.0. Therefore, Xenial and newer releases should be good to go.

Thanks!

Changed in zookeeper (Ubuntu):
status: Confirmed → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for zookeeper (Ubuntu) because there has been no activity for 60 days.]

Changed in zookeeper (Ubuntu):
status: Incomplete → Expired
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