Nothing jumps out. Turn the cassandra logging up to DEBUG and take a look at the cassandra logs. Your read will be logged in a [ReadStage-*] thread.
Hope that helps. ----------------- Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 27/09/2012, at 6:13 AM, Conan Cook <conan.c...@amee.com> wrote: > Hi, > > I'm running a bunch of integration tests using an embedded cassandra instance > via the Cassandra Maven Plugin v1.0.0-1, using Hector v1.0-5. I've got an > issue where one of the tests is using a StringKeyIterator to iterate over all > the keys in a CF, but it gets TimedOutExceptions every time when trying to > communicate with Cassandra; all the other tests using the same (Spring-wired) > keyspace behave fine (stack trace below). A previous test is calling a > cluster.truncate() to ensure an empty CF before each test, and it's this that > seems to cause the problem - at least, commenting it out causes the other > test to run fine. > > Any ideas on what could be causing this? Both tests are using the same > instance of Keyspace, autowired via Spring, and the same instance of Cluster > in the same way. No exceptions are being thrown by the truncate operation - > it completes successfully and does its job. > > Thanks, > > > Conan > > Stack trace: > > [2012-09-26 18:59:53,002] [WARN ] [main] [m.p.c.c.HConnectionManager] Could > not fullfill request on this host CassandraClient<localhost:9170-195> > [2012-09-26 18:59:53,003] [WARN ] [main] [m.p.c.c.HConnectionManager] > Exception: > me.prettyprint.hector.api.exceptions.HTimedOutException: TimedOutException() > at > me.prettyprint.cassandra.service.ExceptionsTranslatorImpl.translate(ExceptionsTranslatorImpl.java:35) > ~[hector-core-1.0-5.jar:na] > at > me.prettyprint.cassandra.service.KeyspaceServiceImpl$3.execute(KeyspaceServiceImpl.java:163) > ~[hector-core-1.0-5.jar:na] > at > me.prettyprint.cassandra.service.KeyspaceServiceImpl$3.execute(KeyspaceServiceImpl.java:145) > ~[hector-core-1.0-5.jar:na] > at > me.prettyprint.cassandra.service.Operation.executeAndSetResult(Operation.java:103) > ~[hector-core-1.0-5.jar:na] > at > me.prettyprint.cassandra.connection.HConnectionManager.operateWithFailover(HConnectionManager.java:258) > ~[hector-core-1.0-5.jar:na] > at > me.prettyprint.cassandra.service.KeyspaceServiceImpl.operateWithFailover(KeyspaceServiceImpl.java:131) > [hector-core-1.0-5.jar:na] > at > me.prettyprint.cassandra.service.KeyspaceServiceImpl.getRangeSlices(KeyspaceServiceImpl.java:167) > [hector-core-1.0-5.jar:na] > at > me.prettyprint.cassandra.model.thrift.ThriftRangeSlicesQuery$1.doInKeyspace(ThriftRangeSlicesQuery.java:66) > [hector-core-1.0-5.jar:na] > at > me.prettyprint.cassandra.model.thrift.ThriftRangeSlicesQuery$1.doInKeyspace(ThriftRangeSlicesQuery.java:62) > [hector-core-1.0-5.jar:na] > at > me.prettyprint.cassandra.model.KeyspaceOperationCallback.doInKeyspaceAndMeasure(KeyspaceOperationCallback.java:20) > [hector-core-1.0-5.jar:na] > at > me.prettyprint.cassandra.model.ExecutingKeyspace.doExecute(ExecutingKeyspace.java:85) > [hector-core-1.0-5.jar:na] > at > me.prettyprint.cassandra.model.thrift.ThriftRangeSlicesQuery.execute(ThriftRangeSlicesQuery.java:61) > [hector-core-1.0-5.jar:na] > at > me.prettyprint.cassandra.service.KeyIterator.runQuery(KeyIterator.java:102) > [hector-core-1.0-5.jar:na] > > ...<snip>... > > Caused by: org.apache.cassandra.thrift.TimedOutException: null > at > org.apache.cassandra.thrift.Cassandra$get_range_slices_result.read(Cassandra.java:12270) > ~[cassandra-thrift-1.1.0.jar:1.1.0] > at > org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:78) > ~[libthrift-0.7.0.jar:0.7.0] > at > org.apache.cassandra.thrift.Cassandra$Client.recv_get_range_slices(Cassandra.java:683) > ~[cassandra-thrift-1.1.0.jar:1.1.0] > at > org.apache.cassandra.thrift.Cassandra$Client.get_range_slices(Cassandra.java:667) > ~[cassandra-thrift-1.1.0.jar:1.1.0] > at > me.prettyprint.cassandra.service.KeyspaceServiceImpl$3.execute(KeyspaceServiceImpl.java:151) > ~[hector-core-1.0-5.jar:na]
