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yarn web ui is too slow

by Guru in Support Questions
‎12-22-2016 05:05 AM
1 Kudo
‎12-22-2016 05:05 AM
1 Kudo
Yarn web ui ( Resource manager ui) is slow and it takes time to load the page. IS there any setting which needs to be tuned to make it faster? ... View more
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downtime for addition of nodes

by Guru in Support Questions
‎12-21-2016 02:19 AM
1 Kudo
‎12-21-2016 02:19 AM
1 Kudo
want to add a few nodes to a running cluster. does it require any down time and will the running jobs get affected? ... View more
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Re: ambari metrics collector going down

by Guru in Support Questions
‎12-20-2016 05:20 PM
‎12-20-2016 05:20 PM
Also i do see errors like this too ERROR org.apache.hadoop.hbase.client.AsyncProcess: Internal AsyncProcess #1 error for METRIC_RECORD_MINUTE processing for local,61320,1481772798476 java.lang.RuntimeException: java.util.concurrent.RejectedExecutionException: Task org.apache.hadoop.hbase.client.ResultBoundedCompletionService$QueueingFuture@db14f9e rejected from java.util.concurrent.ThreadPoolExecutor@a8ef1a0[Shutting down, pool size = 10, active threads = 10, queued tasks = 324, completed tasks = 45] at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:208) at org.apache.hadoop.hbase.client.ClientSmallReversedScanner.loadCache(ClientSmallReversedScanner.java:211) at org.apache.hadoop.hbase.client.ClientSmallReversedScanner.next(ClientSmallReversedScanner.java:185) at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegionInMeta(ConnectionManager.java:1256) at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1162) at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.findAllLocationsOrFail(AsyncProcess.java:940) at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.groupAndSendMultiAction(AsyncProcess.java:857) at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.resubmit(AsyncProcess.java:1186) at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.receiveGlobalFailure(AsyncProcess.java:1153) at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.access$1100(AsyncProcess.java:575) at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl$SingleServerRequestRunnable.run(AsyncProcess.java:718) at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.sendMultiAction(AsyncProcess.java:977) at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.groupAndSendMultiAction(AsyncProcess.java:886) at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.resubmit(AsyncProcess.java:1186) at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.receiveGlobalFailure(AsyncProcess.java:1153) at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.access$1100(AsyncProcess.java:575) at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl$SingleServerRequestRunnable.run(AsyncProcess.java:718) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: java.util.concurrent.RejectedExecutionException: Task org.apache.hadoop.hbase.client.ResultBoundedCompletionService$QueueingFuture@db14f9e rejected from java.util.concurrent.ThreadPoolExecutor@a8ef1a0[Shutting down, pool size = 10, active threads = 10, queued tasks = 324, completed tasks = 45] at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2047) ... View more

Re: ambari metrics collector going down

by Guru in Support Questions
‎12-20-2016 05:17 PM
‎12-20-2016 05:17 PM
Hi @Josh Elser, i have attached the metrics log. I do see some strange yarn related errors too in metrics log for the first time 😉metrics-log.txt ... View more

ambari metrics collector going down

by Guru in Support Questions
‎12-20-2016 04:47 PM
‎12-20-2016 04:47 PM
Ambari metrics collector is going down because of lack of thread pools. How to increase the thread pool size for ambari metrics hbase. we are running hbase for metrics in distributed mode. Collector gows down within 5 minutes after restart. ... View more
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Re: Visualize Cluster and Service Allocation - Bui...

by Guru in Community Articles
‎12-19-2016 12:28 PM
‎12-19-2016 12:28 PM
@Jonas Straub, Your app is excellent to visually build a cluster. but i am not able to change the host names in the app. If i edit the host name it again goes back to the old host name like "master01.example.com". Is it possible to edit the names. Thanks atun ... View more

Re: Zeppelin phoenix error

by Guru in Support Questions
‎12-15-2016 09:48 AM
‎12-15-2016 09:48 AM
Luckily i found out the cause. The property i was trying to set is phoenix.schema.isNamespaceMappingEnabled. The property had phoenix. which is a prefix for the phoenix interpreter. so it was not set properly on the interpreter side. so the right property i need to set is phoenix.phoenix.schema.isNamespaceMappingEnabled so the prefix gets correctly parsed. I found out this from the logs JDBCInterpreter.java[open]:142) - key: phoenix, value: schema.isNamespaceMappingEnabled (before the change) JDBCInterpreter.java[open]:142) - key: phoenix, value: phoenix.schema.isNamespaceMappingEnabled (after the change) Hope this helps ... View more

Zeppelin phoenix error

by Guru in Support Questions
‎12-15-2016 08:51 AM
‎12-15-2016 08:51 AM
I am getting the following error in zeppelin when i try to query phoenix, ERROR 726 (43M10): Inconsistent namespace mapping properites.. Cannot initiate connection as SYSTEM:CATALOG is found but client does not have phoenix.schema.isNamespaceMappingEnabled enabled class java.sql.SQLException org.apache.phoenix.exception.SQLExceptionCode$Factory$1.newException(SQLExceptionCode.java:455) I have set the "phoenix.schema.isNamespaceMappingEnabled" to true in zeppelin interpreter setting. i have attached the screen shot too. any thoughts on how to fix it.zeppelin-phoenix.png ... View more

restrict hbase users in ambari

by Guru in Support Questions
‎12-07-2016 12:01 PM
‎12-07-2016 12:01 PM
By default hbase allows all users to drop hbase tables and delete rows. How to prevent the users from doing drop and delete from ambari. i remember using it through the property hbase.superuser. the above property has just hbase in its value. any thoughts ... View more
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Re: Exporting a phoenix table into a csvfile

by Guru in Support Questions
‎11-29-2016 09:16 AM
1 Kudo
‎11-29-2016 09:16 AM
1 Kudo
hi @Rajeshbabu Chintaguntla, the export utility provided by hbase generates sequence files i guess. how to convert them into csv files. I tried the pig export, but the datatypes are not mapped. i used a query similar to this A = load 'hbase://query/select * from TRANSACTION' using org.apache.phoenix.pig.PhoenixHBaseLoader('localhost'); Should i need to explicitly specify the schema and if so how to do that. ... View more
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Member Since ‎01-21-2016 11:26 AM
Last Visited ‎03-14-2019 05:48 AM
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