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From "Cyril Scetbon (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-10751) "Pool is shutdown" error when running Hadoop jobs on Yarn
Date Wed, 25 Nov 2015 00:14:11 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-10751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15025776#comment-15025776
] 

Cyril Scetbon edited comment on CASSANDRA-10751 at 11/25/15 12:13 AM:
----------------------------------------------------------------------

[~alexliu68], so the issue is that CqlRecord calls cluster.connect using a [quoted keyspace
string|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/hadoop/cql3/CqlRecordReader.java#L138]
and that the java driver quotes it too when it accesses the keyspace using [CQL|https://github.com/datastax/java-driver/blob/2.1.8/driver-core/src/main/java/com/datastax/driver/core/Connection.java#L477].
If I remove the first quote my job runs.


was (Author: cscetbon):
[~alexliu68], so the issue is that CqlRecord calls cluster.connect using a [quoted keyspace
string|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/hadoop/cql3/CqlRecordReader.java#L138]
and that the java driver quotes it too https://github.com/datastax/java-driver/blob/2.1.8/driver-core/src/main/java/com/datastax/driver/core/Connection.java#L477.
If I remove the first quote my job runs.

> "Pool is shutdown" error when running Hadoop jobs on Yarn
> ---------------------------------------------------------
>
>                 Key: CASSANDRA-10751
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10751
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: Hadoop 2.7.1 (HDP 2.3.2)
> Cassandra 2.1.11
>            Reporter: Cyril Scetbon
>            Assignee: Alex Liu
>         Attachments: output.log
>
>
> Trying to execute an Hadoop job on Yarn, I get errors from Cassandra's internal code.
It seems that connections are shutdown but we can't understand why ...
> Here is a subtract of the errors. I also add a file with the complete debug logs.
> {code}
> 15/11/22 20:05:54 [main]: DEBUG core.RequestHandler: Error querying node006.internal.net/192.168.12.22:9042,
trying next host (error is: com.datastax.driver.core.ConnectionException: [node006.internal.net/192.168.12.22:9042]
Pool is shutdown)
> Failed with exception java.io.IOException:java.io.IOException: com.datastax.driver.core.exceptions.NoHostAvailableException:
All host(s) tried for query failed (tried: node006.internal.net/192.168.12.22:9042 (com.datastax.driver.core.ConnectionException:
[node006.internal.net/192.168.12.22:9042] Pool is shutdown))
> 15/11/22 20:05:54 [main]: ERROR CliDriver: Failed with exception java.io.IOException:java.io.IOException:
com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query
failed (tried: node006.internal.net/192.168.12.22:9042 (com.datastax.driver.core.ConnectionException:
[node006.internal.net/192.168.12.22:9042] Pool is shutdown))
> java.io.IOException: java.io.IOException: com.datastax.driver.core.exceptions.NoHostAvailableException:
All host(s) tried for query failed (tried: node006.internal.net/192.168.12.22:9042 (com.datastax.driver.core.ConnectionException:
[node006.internal.net/192.168.12.22:9042] Pool is shutdown))
> 	at org.apache.hadoop.hive.ql.exec.FetchOperator.getNextRow(FetchOperator.java:508)
> 	at org.apache.hadoop.hive.ql.exec.FetchOperator.pushRow(FetchOperator.java:415)
> 	at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:140)
> 	at org.apache.hadoop.hive.ql.Driver.getResults(Driver.java:1672)
> 	at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:233)
> 	at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:165)
> 	at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:376)
> 	at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:736)
> 	at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:681)
> 	at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:621)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:497)
> 	at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
> 	at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
> Caused by: java.io.IOException: com.datastax.driver.core.exceptions.NoHostAvailableException:
All host(s) tried for query failed (tried: node006.internal.net/192.168.12.22:9042 (com.datastax.driver.core.ConnectionException:
[node006.internal.net/192.168.12.22:9042] Pool is shutdown))
> 	at org.apache.hadoop.hive.cassandra.input.cql.HiveCqlInputFormat.getRecordReader(HiveCqlInputFormat.java:132)
> 	at org.apache.hadoop.hive.ql.exec.FetchOperator$FetchInputFormatSplit.getRecordReader(FetchOperator.java:674)
> 	at org.apache.hadoop.hive.ql.exec.FetchOperator.getRecordReader(FetchOperator.java:324)
> 	at org.apache.hadoop.hive.ql.exec.FetchOperator.getNextRow(FetchOperator.java:446)
> 	... 15 more
> Caused by: com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s)
tried for query failed (tried: node006.internal.net/192.168.12.22:9042 (com.datastax.driver.core.ConnectionException:
[node006.internal.net/192.168.12.22:9042] Pool is shutdown))
> 	at com.datastax.driver.core.exceptions.NoHostAvailableException.copy(NoHostAvailableException.java:84)
> 	at com.datastax.driver.core.DriverThrowables.propagateCause(DriverThrowables.java:37)
> 	at com.datastax.driver.core.DefaultResultSetFuture.getUninterruptibly(DefaultResultSetFuture.java:214)
> 	at com.datastax.driver.core.AbstractSession.execute(AbstractSession.java:52)
> 	at com.datastax.driver.core.AbstractSession.execute(AbstractSession.java:36)
> 	at org.apache.cassandra.hadoop.cql3.CqlRecordReader.fetchKeys(CqlRecordReader.java:578)
> 	at org.apache.cassandra.hadoop.cql3.CqlRecordReader.buildQuery(CqlRecordReader.java:526)
> 	at org.apache.cassandra.hadoop.cql3.CqlRecordReader.initialize(CqlRecordReader.java:148)
> {code}



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