Github user clebertsuconic commented on the issue:
https://github.com/apache/activemq-artemis/pull/1263
@michaelandrepearce Compactor is failing pretty bad at the moment...
ConcurrentLongHashSet needs a minimal size of numSections...
```
[Thread-0
(ActiveMQ-IO-server-org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl$4@192d3247)]
15:25:35,912 ERROR [org.apache.activemq.artemis.journal] AMQ144003: Error
compacting: java.lang.IllegalArgumentException
at
com.google.common.base.Preconditions.checkArgument(Preconditions.java:108)
[guava-19.0.jar:]
at
org.apache.activemq.artemis.utils.collections.ConcurrentLongHashSet.<init>(ConcurrentLongHashSet.java:63)
[:]
at
org.apache.activemq.artemis.utils.collections.ConcurrentLongHashSet.<init>(ConcurrentLongHashSet.java:59)
[:]
at
org.apache.activemq.artemis.utils.collections.ConcurrentLongHashMap.keysLongHashSet(ConcurrentLongHashMap.java:181)
[:]
at
org.apache.activemq.artemis.core.journal.impl.JournalImpl.compact(JournalImpl.java:1490)
[:]
at
org.apache.activemq.artemis.core.journal.impl.JournalImpl$12.run(JournalImpl.java:1413)
[:]
at
org.apache.activemq.artemis.utils.OrderedExecutorFactory$OrderedExecutor$ExecutorTask.run(OrderedExecutorFactory.java:101)
[:]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[rt.jar:1.8.0_73]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[rt.jar:1.8.0_73]
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_73]
```
This is because the ConcurrentLongHashMap was checking for a list of IDs on
an empty set. Which was fine before (we would iterate over nothing and give up
the loop before).
I'm not sure yet what to do here. To change the minimal... or what to do..
I need to get my head around these collections.. so I appreciate any help? :)
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