Henrik Karlsson created AMQ-5328:
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Summary: Store limit reset to a smaller value then current size
Key: AMQ-5328
URL: https://issues.apache.org/jira/browse/AMQ-5328
Project: ActiveMQ
Issue Type: Bug
Components: Message Store
Affects Versions: 5.9.0
Environment: Windows Server 2012
Reporter: Henrik Karlsson
We have a cluster setup using "Shared File System Master Slave". The kahadb
database is stored on a 20 GB shared filesystem. The last weeks we have had a
couple of times where producers where block because the persistent store usage
was at 100%. I found that where about 8 GB of disk available, so the persistent
store usage shouldn't be more than around 60%.
I found that when starting up or failing over the max size of the persistent
store is adjusted to be no more then the available disk space. Found this in
the log:
INFO | jvm 1 | 2014/07/27 06:36:09 | WARN | Store limit is 20480 mb,
whilst the data directory: \\pulbrscbfs1\ActiveMQ\kahadb only has 7945 mb of
usable space - resetting to maximum available disk space: 7945 mb
And then this occurs:
INFO | jvm 1 | 2014/07/27 06:40:03 | INFO |
Usage(default:store:queue://PCIS.SCH.Notes.Jobs:store) percentUsage=153%,
usage=12813873606, limit=8331595776,
percentUsageMinDelta=1%;Parent:Usage(default:store) percentUsage=153%,
usage=12813873606, limit=8331595776, percentUsageMinDelta=1%: Persistent store
is Full, 100% of 8331595776. Stopping producer
(ID:PULBRSCBMULE2-49430-1406435872187-1:1:4:1) to prevent flooding
queue://PCIS.SCH.Notes.Jobs. See
http://activemq.apache.org/producer-flow-control.html for more info (blocking
for: 2s)
As you can see the percentUsage is 153%!
So the reset of the store limit to 7945 mb is wrong and should have been 12220
mb + 7945 mb = 20165 mb
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