question Re: Atlas restart error in Support Questions

Atlas restart error

hrajpurohit — Tue, 14 Feb 2017 02:30:03 GMT

I'm trying to restart atlas but I'm getting this error PFA error log12423-erro2.txt

Re: Atlas restart error

hrajpurohit — Tue, 14 Feb 2017 02:32:28 GMT

@Ayub Khan

Re: Atlas restart error

apathan — Tue, 14 Feb 2017 04:01:10 GMT

@Hitesh Rajpurohit

HBase is the default datastore for atlas. So, as part of atlas startup script, it sets up required hbase tables to store the metadata.

From the logs, it looks like HBase master is in its initialization phase and is not completely running yet.. I would suggest to wait for the hbase master and region server to come up completely. If it is stuck then try restarting hbase service. You can check the status of hbase services through Ambari. Hope this helps.

ERROR Java::OrgApacheHadoopHbaseIpc::RemoteWithExtrasException: org.apache.hadoop.hbase.PleaseHoldException: Master is initializing
	at org.apache.hadoop.hbase.master.HMaster.checkInitialized(HMaster.java:2402)
	at org.apache.hadoop.hbase.master.MasterRpcServices.getTableNames(MasterRpcServices.java:901)
	at org.apache.hadoop.hbase.protobuf.generated.MasterProtos$MasterService$2.callBlockingMethod(MasterProtos.java:57172)
	at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2127)
	at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:107)
	at org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:133)
	at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:108)

Re: Atlas restart error

hrajpurohit — Tue, 14 Feb 2017 12:31:03 GMT

I'm trying to restart HBase services. Services are starting but after some time RegionServer and Hbase Master automatically stops.

Re: Atlas restart error

apathan — Tue, 14 Feb 2017 13:50:47 GMT

Check the logs of hbase master and region servers for any exceptions. zookeeper has to be up & running for hbase to work properly.

Re: Atlas restart error

hrajpurohit — Fri, 24 Feb 2017 01:34:15 GMT

Hi ayub zookeeper services are up and running properly I'm getting an error Hbase Master is initializing but when i checked Hbase Master is running but Hbase RegionServer is not running.

Re: Atlas restart error

apathan — Fri, 24 Feb 2017 13:33:02 GMT

Try restarting HBase region servers. If it does not help, please attach logs for master and region servers for further debugging.

Re: Atlas restart error

hrajpurohit — Fri, 24 Feb 2017 21:09:46 GMT

I tried restarting Hbase regionserver it started successfully then i tried to restart Atlas then Regionserver automatically Stopped and Atlas failed to start by giving attached errorerror.txt

Re: Atlas restart error

apathan — Sat, 25 Feb 2017 10:42:50 GMT

@Hitesh Rajpurohit Then the problem is with hbase region server. So, could you please attach the region server and hbase master logs for debugging? Actually Atlas is dependent on Hbase for backend store, if hbase fails to comeup, atlas will also fail.

Re: Atlas restart error

hrajpurohit — Mon, 27 Feb 2017 13:58:49 GMT

Hi @Ayub Khan

PFA logs of Hbase Master and Hbase RegionServer.hbase-regionserver.txt hbase-master.txt

Re: Atlas restart error

apathan — Mon, 27 Feb 2017 15:23:20 GMT

@Hitesh Rajpurohit

The logs you shared does not have any error or exception and it has very minimal information. Could you check the entire hbase logs and see if there is any exception?

Also, I would recommend to ask this as a separate question because this is an Hbase issue, not related to Atlas. That way, more hbase folks would be notified and resolution will be quick. Please close this thread once asked as a different question.

Re: Atlas restart error

apathan — Mon, 27 Feb 2017 16:13:59 GMT

@Hitesh Rajpurohit

can you please close this thread? as this is not an atlas issue and the actual hbase issue is tracked as a different question?