Hello Community and Hello Tom! Apologies if I'm on the wrong support group, but this Jackrabbit setup works with Apache Derby, that's why I thought I start asking here for insight.
I'm using a two node Jackrabbit Cluster with a H2 backed DatabaseJournal.
The nodes and H2 run in separate processes on the same windows box (=3 jvm
processes). The nodes talk via jdbc(tcp) to the one H2 jvm process.
When only one clusternode process is started, everything is fine. However,
when the second one is started as well, a couple of seconds later the H2 jvm
process deadlocks (see profiler printscreen). I have the feeling this occurs
when the "sync period" of the other clusternode is due, meaning when the
second node wakes up to read the journal in order to get up to date.
We are using the following:
H2 1.3.154
Jackrabbit 2.2.4
Windows 2008 Server R2 64bit
Konfiguration of Clusternodes:
<Cluster id="node_batch" syncDelay="10000">
<Journal class="org.apache.jackrabbit.core.journal.DatabaseJournal">
<param name="driver" value="org.h2.Driver" />
<param name="url" value="jdbc:h2:tcp://127.0.0.1/journal"/>
<param name="schemaObjectPrefix" value="journal_"/>
<param name="databaseType" value="h2"/>
<param name="user" value="sa"/>
<param name="password" value="sa"/>
</Journal>
</Cluster>
...
<Cluster id="node_online" syncDelay="10000">
<Journal class="org.apache.jackrabbit.core.journal.DatabaseJournal">
<param name="driver" value="org.h2.Driver" />
<param name="url" value="jdbc:h2:tcp://127.0.0.1/journal"/>
<param name="schemaObjectPrefix" value="journal_"/>
<param name="databaseType" value="h2"/>
<param name="user" value="sa"/>
<param name="password" value="sa"/>
</Journal>
</Cluster>
H2 runs "embedded" in a dedicated Java program started/stopped as follows:
h2JournalServer = Server.createTcpServer("-baseDir", BASEDIR).start();
...
h2JournalServer.stop();
Any tips / clues would be appreciated,
Thx, Tanju
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<<attachment: H2JavaLevelDeadlock.png>>
