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Vladimir commented on CASSANDRA-3124: ------------------------------------- Today I tested 100 nodes cassandra cluster. `nodetool status` works but `nodetool ring' crashed with Out Of Memory: ./application/lib/apache-cassandra-2.0.10/bin/nodetool ring Note: Ownership information does not include topology; for complete information, specify a keyspace Datacenter: datacenter1 ========== Exception in thread "main" java.lang.OutOfMemoryError: Java heap space at java.util.Arrays.copyOf(Unknown Source) at java.util.ArrayList.grow(Unknown Source) at java.util.ArrayList.ensureExplicitCapacity(Unknown Source) at java.util.ArrayList.ensureCapacityInternal(Unknown Source) at java.util.ArrayList.addAll(Unknown Source) at org.apache.cassandra.tools.NodeCmd.printDc(NodeCmd.java:325) at org.apache.cassandra.tools.NodeCmd.printRing(NodeCmd.java:292) at org.apache.cassandra.tools.NodeCmd.main(NodeCmd.java:1224) I had to set up higher limit, 320MB at the script. Do you really think 32 Mb is enough or something wrong on my side? nodetool ring | wc -l 24842 ring.txt > java heap limit for nodetool > ---------------------------- > > Key: CASSANDRA-3124 > URL: https://issues.apache.org/jira/browse/CASSANDRA-3124 > Project: Cassandra > Issue Type: Improvement > Components: Tools > Environment: not important > Reporter: Zenek Kraweznik > Assignee: Zenek Kraweznik > Priority: Minor > Fix For: 1.0.1 > > > by defaull (from debian package) > # nodetool > Error occurred during initialization of VM > Could not reserve enough space for object heap > Could not create the Java virtual machine. > # > and: > --- /usr/bin/nodetool.old 2011-09-02 14:15:14.228152799 +0200 > +++ /usr/bin/nodetool 2011-09-02 14:14:28.745154552 +0200 > @@ -55,7 +55,7 @@ > ;; > esac > -$JAVA -cp $CLASSPATH -Dstorage-config=$CASSANDRA_CONF \ > +$JAVA -Xmx32m -cp $CLASSPATH -Dstorage-config=$CASSANDRA_CONF \ > -Dlog4j.configuration=log4j-tools.properties \ > org.apache.cassandra.tools.NodeCmd $@ > after every upgrade i had to add limit manually. I think it's good idea to > add it by default ;) -- This message was sent by Atlassian JIRA (v6.3.4#6332)