startup of machines updates container support on every startup

Bug #1812981 reported by John A Meinel
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Canonical Juju
Fix Released
High
John A Meinel
2.4
Won't Fix
High
Unassigned
2.5
Fix Released
High
John A Meinel

Bug Description

During a restart of a controller, we started to see messages like this:
2019-01-23 07:40:08 ERROR juju.state machine.go:2027 cannot update supported containers of machine 13: read tcp 10.25.2.110:57934->10.25.2.110:37017: i/o timeout

That would indicate that we are making a db write request for every machine to record that "yes, we still have exactly lxd+kvm support".

We should turn that record of information into "only write to the database if it is different than the current value".

That should improve some of the startup load.

Revision history for this message
John A Meinel (jameinel) wrote :
Changed in juju:
milestone: none → 2.6-beta1
assignee: nobody → John A Meinel (jameinel)
status: Triaged → In Progress
Revision history for this message
John A Meinel (jameinel) wrote :
Changed in juju:
status: In Progress → Fix Committed
Changed in juju:
status: Fix Committed → Fix Released
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