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Posted to dev@falcon.apache.org by Venkat Ranganathan <n....@live.com> on 2015/12/01 22:32:43 UTC
Re: Review Request 40103: FALCON-1595 : In kerberos secured clusters,
Falcon loses ability to communicate with HDFS overtime.
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/40103/#review108562
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Ship it!
Ship It!
- Venkat Ranganathan
On Nov. 9, 2015, 1 p.m., Balu Vellanki wrote:
>
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/40103/
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>
> (Updated Nov. 9, 2015, 1 p.m.)
>
>
> Review request for Falcon, Ajay Yadava, Sowmya Ramesh, and Venkat Ranganathan.
>
>
> Bugs: FALCON-1595
> https://issues.apache.org/jira/browse/FALCON-1595
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> Repository: falcon-git
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>
> Description
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>
> In a kerberos secured cluster where the Kerberos ticket validity is one day, Falcon server eventually lost the ability to read and write to and from HDFS. In the logs we saw typical Kerberos-related errors like "GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)".
>
> {code}
> 2015-10-28 00:04:59,517 INFO - [LaterunHandler:] ~ Creating FS impersonating user testUser (HadoopClientFactory:197)
> 2015-10-28 00:04:59,519 WARN - [LaterunHandler:] ~ Exception encountered while connecting to the server : javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] (Client:680)
> 2015-10-28 00:04:59,520 WARN - [LaterunHandler:] ~ Late Re-run failed for instance sample-process:2015-10-28T03:58Z after 420000 (AbstractRerunConsumer:84)
> java.io.IOException: Failed on local exception: java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)]; Host Details : local host is: "sample.host.com/127.0.0.1"; destination host is: "sample.host.com":8020;
> at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:773)
> at org.apache.hadoop.ipc.Client.call(Client.java:1431)
> at org.apache.hadoop.ipc.Client.call(Client.java:1358)
> at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)
> at com.sun.proxy.$Proxy22.getFileInfo(Unknown Source)
> at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:771)
> at sun.reflect.GeneratedMethodAccessor19.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:497)
> at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
> at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
> at com.sun.proxy.$Proxy23.getFileInfo(Unknown Source)
> at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:2116)
> at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1305)
> at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1301)
> at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
> at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1301)
> at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1424)
> at org.apache.falcon.rerun.handler.LateRerunConsumer.detectLate(LateRerunConsumer.java:108)
> at org.apache.falcon.rerun.handler.LateRerunConsumer.handleRerun(LateRerunConsumer.java:67)
> at org.apache.falcon.rerun.handler.LateRerunConsumer.handleRerun(LateRerunConsumer.java:47)
> at org.apache.falcon.rerun.handler.AbstractRerunConsumer.run(AbstractRerunConsumer.java:73)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)]
> at org.apache.hadoop.ipc.Client$Connection$1.run(Client.java:685)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
> at org.apache.hadoop.ipc.Client$Connection.handleSaslConnectionFailure(Client.java:648)
> at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:735)
> at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:373)
> at org.apache.hadoop.ipc.Client.getConnection(Client.java:1493)
> at org.apache.hadoop.ipc.Client.call(Client.java:1397)
> {code}
>
>
> Diffs
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> common/src/main/java/org/apache/falcon/hadoop/HadoopClientFactory.java 9534ff2
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> Diff: https://reviews.apache.org/r/40103/diff/
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> Testing
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> end2end testing done on a two node secure cluster. Updated krb5.conf, ticket_lifetime set to 1day, renew_lifetime set to 1day. Ran falcon for more than a two days and falcon did not have issues accessing hdfs.
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>
> Thanks,
>
> Balu Vellanki
>
>