Eduard Tudenhoefner created CASSANDRA-11615:
-----------------------------------------------
Summary: cassandra-stress blocks when connecting to a big cluster
Key: CASSANDRA-11615
URL: https://issues.apache.org/jira/browse/CASSANDRA-11615
Project: Cassandra
Issue Type: Bug
Components: Tools
Reporter: Eduard Tudenhoefner
I had a *100* node cluster and was running
{code}
cassandra-stress read n=100 no-warmup cl=LOCAL_QUORUM -rate 'threads=20'
'limit=1000/s'
{code}
Based on the thread dump it looks like it's been blocked at
https://github.com/apache/cassandra/blob/cassandra-3.0/tools/stress/src/org/apache/cassandra/stress/util/JavaDriverClient.java#L96
{code}
"Thread-20" #245 prio=5 os_prio=0 tid=0x00007f3781822000 nid=0x46c4 waiting for
monitor entry [0x00007f36cc788000]
java.lang.Thread.State: BLOCKED (on object monitor)
at
org.apache.cassandra.stress.util.JavaDriverClient.prepare(JavaDriverClient.java:96)
- waiting to lock <0x00000005c003d920> (a
java.util.concurrent.ConcurrentHashMap)
at
org.apache.cassandra.stress.operations.predefined.CqlOperation$JavaDriverWrapper.createPreparedStatement(CqlOperation.java:314)
at
org.apache.cassandra.stress.operations.predefined.CqlOperation.run(CqlOperation.java:77)
at
org.apache.cassandra.stress.operations.predefined.CqlOperation.run(CqlOperation.java:109)
at
org.apache.cassandra.stress.operations.predefined.CqlOperation.run(CqlOperation.java:261)
at
org.apache.cassandra.stress.StressAction$Consumer.run(StressAction.java:327)
"Thread-19" #244 prio=5 os_prio=0 tid=0x00007f3781820000 nid=0x46c3 waiting for
monitor entry [0x00007f36cc889000]
java.lang.Thread.State: BLOCKED (on object monitor)
at
org.apache.cassandra.stress.util.JavaDriverClient.prepare(JavaDriverClient.java:96)
- waiting to lock <0x00000005c003d920> (a
java.util.concurrent.ConcurrentHashMap)
at
org.apache.cassandra.stress.operations.predefined.CqlOperation$JavaDriverWrapper.createPreparedStatement(CqlOperation.java:314)
at
org.apache.cassandra.stress.operations.predefined.CqlOperation.run(CqlOperation.java:77)
at
org.apache.cassandra.stress.operations.predefined.CqlOperation.run(CqlOperation.java:109)
at
org.apache.cassandra.stress.operations.predefined.CqlOperation.run(CqlOperation.java:261)
at
org.apache.cassandra.stress.StressAction$Consumer.run(StressAction.java:327)
{code}
I was trying the same with with a smaller cluster (50 nodes) and it was working
fine.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
