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Docs: Add upgrading notes for 2.11.x bugfix releases

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Michael Friedrich 2019-10-24 09:18:19 +02:00
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doc/16-upgrading-icinga-2.md
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@ -10,6 +10,29 @@ follow the instructions for v2.7 too.
## Upgrading to v2.11 <a id="upgrading-to-2-11"></a>
### Bugfixes for 2.11 <a id="upgrading-to-2-11-bugfixes"></a>
2.11.1 on agents/satellites fixes a problem where 2.10.x as config master would send out an unwanted config marker file,
thus rendering the agent to think it is autoritative for the config, and never accepting any new
config files for the zone(s). **If your config master is 2.11.x already, you are not affected by this problem.**
In order to fix this, upgrade to at least 2.11.1, and purge away the local config sync storage once, then restart.
```
yum install icinga2
rm -rf /var/lib/icinga2/api/zones/*
rm -rf /var/lib/icinga2/api/zones-stage/*
systemctl restart icinga2
```
2.11.2 fixes a problem where the newly introduced config sync "check-change-then-reload" functionality
could cause endless reload loops with agents. The most visible parts are failing command endpoint checks
with "not connected" UNKNOWN state. **Only applies to HA enabled zones with 2 masters and/or 2 satellites.**
In order to fix this, upgrade all agents/satellites to at least 2.11.2 and restart them.
### Packages <a id="upgrading-to-2-11-packages"></a>
EOL distributions where no packages are available with this release: