Alex, Thanks for reply. I will try the workaround and post an update.
Regards, Srinath Reddy > On 09-Feb-2017, at 1:44 PM, Oleksandr Shulgin <oleksandr.shul...@zalando.de> > wrote: > > On Thu, Feb 9, 2017 at 6:13 AM, Srinath Reddy <ksre...@gmail.com > <mailto:ksre...@gmail.com>> wrote: > Hi, > > Trying to re-balacne a Cassandra cluster after adding a new node and I'm > getting this error when running nodetool cleanup. The Cassandra cluster is > running in a Kubernetes cluster. > > Cassandra version is 2.2.8 > > nodetool cleanup > error: io.k8s.cassandra.KubernetesSeedProvider > Fatal configuration error; unable to start server. See log for stacktrace. > -- StackTrace -- > org.apache.cassandra.exceptions.ConfigurationException: > io.k8s.cassandra.KubernetesSeedProvider > Fatal configuration error; unable to start server. See log for stacktrace. > at > org.apache.cassandra.config.DatabaseDescriptor.applyConfig(DatabaseDescriptor.java:676) > at > org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescriptor.java:119) > at org.apache.cassandra.tools.NodeProbe.checkJobs(NodeProbe.java:256) > at > org.apache.cassandra.tools.NodeProbe.forceKeyspaceCleanup(NodeProbe.java:262) > at org.apache.cassandra.tools.nodetool.Cleanup.execute(Cleanup.java:55) > at > org.apache.cassandra.tools.NodeTool$NodeToolCmd.run(NodeTool.java:244) > at org.apache.cassandra.tools.NodeTool.main(NodeTool.java:158) > > Hi, > > From the above stacktrace it looks like you're hitting the following TODO > item: > > https://github.com/apache/cassandra/blob/98d74ed998706e9e047dc0f7886a1e9b18df3ce9/src/java/org/apache/cassandra/tools/NodeProbe.java#L282 > > <https://github.com/apache/cassandra/blob/98d74ed998706e9e047dc0f7886a1e9b18df3ce9/src/java/org/apache/cassandra/tools/NodeProbe.java#L282> > > That is, nodetool needs to know concurrent_compactors setting's value before > starting cleanup, but doesn't use JMX and tries to parse the configuration > file instead. That fails because your custom SeedProvider class is not on > classpath for nodetool. > > A workaround: make sure io.k8s.cassandra.KubernetesSeedProvider can be found > by java when running nodetool script, see > https://github.com/apache/cassandra/blob/98d74ed998706e9e047dc0f7886a1e9b18df3ce9/bin/nodetool#L108 > > <https://github.com/apache/cassandra/blob/98d74ed998706e9e047dc0f7886a1e9b18df3ce9/bin/nodetool#L108> > > Proper fix: get rid of the TODO and really query the value using JMX, > especially since the latest tick-tock release of Cassandra (3.10) added a way > to modify it with JMX. > > -- > Alex
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