It looks like the request used a CL higher than ONE. Cheers
----------------- Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 13/06/2012, at 6:49 PM, Prakrati Agrawal wrote: > The error stack is as follows: > Exception in thread "main" java.lang.reflect.InvocationTargetException > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:616) > at > org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58) > Caused by: me.prettyprint.hector.api.exceptions.HUnavailableException: : May > not be enough replicas present to handle consistency level. > at > me.prettyprint.cassandra.service.ExceptionsTranslatorImpl.translate(ExceptionsTranslatorImpl.java:59) > at > me.prettyprint.cassandra.service.KeyspaceServiceImpl$7.execute(KeyspaceServiceImpl.java:285) > at > me.prettyprint.cassandra.service.KeyspaceServiceImpl$7.execute(KeyspaceServiceImpl.java:268) > at > me.prettyprint.cassandra.service.Operation.executeAndSetResult(Operation.java:103) > at > me.prettyprint.cassandra.connection.HConnectionManager.operateWithFailover(HConnectionManager.java:258) > at > me.prettyprint.cassandra.service.KeyspaceServiceImpl.operateWithFailover(KeyspaceServiceImpl.java:131) > at > me.prettyprint.cassandra.service.KeyspaceServiceImpl.getSlice(KeyspaceServiceImpl.java:289) > at > me.prettyprint.cassandra.model.thrift.ThriftSliceQuery$1.doInKeyspace(ThriftSliceQuery.java:53) > at > me.prettyprint.cassandra.model.thrift.ThriftSliceQuery$1.doInKeyspace(ThriftSliceQuery.java:49) > at > me.prettyprint.cassandra.model.KeyspaceOperationCallback.doInKeyspaceAndMeasure(KeyspaceOperationCallback.java:20) > at > me.prettyprint.cassandra.model.ExecutingKeyspace.doExecute(ExecutingKeyspace.java:85) > at > me.prettyprint.cassandra.model.thrift.ThriftSliceQuery.execute(ThriftSliceQuery.java:48) > at > me.prettyprint.cassandra.service.ColumnSliceIterator.hasNext(ColumnSliceIterator.java:88) > at > com.musigma.hectortest.HectorUtilTest.getAllColumns(HectorUtil.java:70) > at com.musigma.hectortest.HectorUtil.main(HectorUtil.java:168) > ... 5 more > Caused by: UnavailableException() > at > org.apache.cassandra.thrift.Cassandra$get_slice_result.read(Cassandra.java:7204) > at > org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:78) > at > org.apache.cassandra.thrift.Cassandra$Client.recv_get_slice(Cassandra.java:543) > at > org.apache.cassandra.thrift.Cassandra$Client.get_slice(Cassandra.java:527) > at > me.prettyprint.cassandra.service.KeyspaceServiceImpl$7.execute(KeyspaceServiceImpl.java:273) > ... 18 more > > The node tool ring from the node I connected to looks like : > Address DC Rack Status State Load > Effective-Owership Token > > 85070591730234615865843651857942052864 > 162.192.100.16 datacenter1 rack1 Up Normal 239.82 MB > 100.00% 0 > 162.192.100.9 datacenter1 rack1 Down Normal 239.81 MB > 100.00% 85070591730234615865843651857942052864 > > I did not find any error in the logs generated by Cassandra on the running > machine. > > Please help me > > Thanks and Regards > > Prakrati > > From: aaron morton [mailto:aa...@thelastpickle.com] > Sent: Tuesday, June 12, 2012 2:42 PM > To: user@cassandra.apache.org > Subject: Re: Hector code not running when replication factor set to 2 > > What was the exact error stack you got ? > > What does node tool ring look look from the node you connected to? > > Did you notice any errors in the logs on the machine you connected to ? > > > Cheers > > ----------------- > Aaron Morton > Freelance Developer > @aaronmorton > http://www.thelastpickle.com > > On 12/06/2012, at 8:41 PM, Prakrati Agrawal wrote: > > > I am using the consistency level one and replication factor 2 > > Thanks > Prakrati > From: aaron morton [mailto:aa...@thelastpickle.com] > Sent: Tuesday, June 12, 2012 2:12 PM > To: user@cassandra.apache.org > Subject: Re: Hector code not running when replication factor set to 2 > > What consistency level and replication factor were you using ? > > UnavailableException is thrown when less the consistency level nodes are UP. > > Cheers > > ----------------- > Aaron Morton > Freelance Developer > @aaronmorton > http://www.thelastpickle.com > > On 11/06/2012, at 10:19 PM, Prakrati Agrawal wrote: > > > > Dear all > > I had a 2 node cluster with replication factor set to 1. Then I changed the > replication factor to 2 and brought down one node so that only 1 node was up > and running. Then I ran my Hector code on the running node. But it gave me > Unavailable Exception. I also had a Thrift code which ran successfully. I am > confused as to why the Hector code did not run. Did I miss something? Please > help me. > > Thanks and Regards > Prakrati > > > This email message may contain proprietary, private and confidential > information. The information transmitted is intended only for the person(s) > or entities to which it is addressed. Any review, retransmission, > dissemination or other use of, or taking of any action in reliance upon, this > information by persons or entities other than the intended recipient is > prohibited and may be illegal. If you received this in error, please contact > the sender and delete the message from your system. > > Mu Sigma takes all reasonable steps to ensure that its electronic > communications are free from viruses. 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