Let me also add that I use Cassandra 2.1.11 with Hadoop 2.7.1 (HDP 2.3.2).
> Trying to execute an Hadoop job on Yarn, I got errors from Cassandra's
> internal code. It seems that connections are closed but I can't understand
> why ...
>
> Here is a subtract of the errors :
>
> 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)
> I also add a file with the complete debug logs.
>
> You can also find the complete log at
> https://www.dropbox.com/s/thwugpw8amv5x9q/output.log?dl=0
