The neo4j server refuses to start after getting a Java OutOfMemory Error. I
was trying to start the server using the ./bin/neo4j start command.
Starting neo4j-service...WARNING: not changing user
process [26266]... waiting for server to be
ready.........................................................................................................................
BAD.
another server-process is running with []
Console log:
Exception in thread "Statistics Gatherer" java.lang.OutOfMemoryError:
PermGen space
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
at java.lang.Class.getMethod0(Class.java:2670)
at java.lang.Class.getMethod(Class.java:1603)
at org.neo4j.helpers.Service.java6Loader(Service.java:330)
at org.neo4j.helpers.Service.load(Service.java:191)
at org.neo4j.helpers.Service.load(Service.java:207)
at
org.neo4j.kernel.EmbeddedGraphDbImpl.getManagementBean(EmbeddedGraphDbImpl.java:221)
at
org.neo4j.kernel.EmbeddedGraphDatabase.getManagementBean(EmbeddedGraphDatabase.java:156)
at
org.neo4j.server.rrd.DatabasePrimitivesSampleableBase.getObjectName(DatabasePrimitivesSampleableBase.java:86)
at
org.neo4j.server.rrd.DatabasePrimitivesSampleableBase.getValue(DatabasePrimitivesSampleableBase.java:53)
at org.neo4j.server.rrd.RrdSampler.updateSample(RrdSampler.java:62)
at org.neo4j.server.rrd.RrdJob.run(RrdJob.java:41)
at org.neo4j.server.rrd.ScheduledJob$1.run(ScheduledJob.java:47)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
neo4j log:
Aug 23, 2011 4:23:11 PM org.neo4j.server.logging.Logger log
INFO: Starting Neo Server on port [7474] with [80] threads available
Aug 23, 2011 4:23:11 PM org.mortbay.log.Slf4jLog info
INFO: Logging to org.slf4j.impl.JDK14LoggerAdapter(org.mortbay.log) via
org.mortbay.log.Slf4jLog
Aug 23, 2011 4:23:11 PM org.neo4j.server.logging.Logger log
INFO: Using database at /Users/nuo/5star/neo4j-community-1.4/data/graph.db
Aug 23, 2011 4:23:11 PM
org.neo4j.kernel.impl.transaction.xaframework.XaLogicalLog
doInternalRecovery
INFO: Non clean shutdown detected on log
[/Users/nuo/5star/neo4j-community-1.4/data/graph.db/nioneo_logical.log.1].
Recovery started ...
Aug 23, 2011 4:23:13 PM
org.neo4j.kernel.impl.transaction.xaframework.XaLogicalLog
doInternalRecovery
INFO: Non clean shutdown detected on log
[/Users/nuo/5star/neo4j-community-1.4/data/graph.db/index/lucene.log.1].
Recovery started ...
Does anybody have any insights on what's happening? Is the recovery not
finishing up and timing out or something else is happening? It starts fine
if I clear the data (graph.db).
In addition, I've modified line 109 of the ./bin/lib/neo4j script
to JAVA_OPTS="-server ${wrapper_java_additional} -Xmx512m" (basically adding
-Xmx512m) and also updated the conf/neo4j.properties file to set
mapped_memory for nodes and relationships to be 100M; but I was still seeing
the out of memory exception. Did I do it right to increase the memory
allocation to neo?
Thanks,
Nuo Yan
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