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From "Nicolas Fraison (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11590) Nodemanagers have DDoS our namenode due to HDFS_DELEGATION_TOKEN expired or not in the cache
Date Tue, 18 Jul 2017 20:12:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11590?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16092103#comment-16092103
] 

Nicolas Fraison commented on HDFS-11590:
----------------------------------------

The client will try to abort the files being written (not close them) so it will not failed
as it won't try to connect to the namenode to do this.
The idea is just to abort the output stream, freeze associated ressources and avoid retrying
renewing the lease for those files.

> Nodemanagers have DDoS our namenode due to HDFS_DELEGATION_TOKEN expired or not in the
cache
> --------------------------------------------------------------------------------------------
>
>                 Key: HDFS-11590
>                 URL: https://issues.apache.org/jira/browse/HDFS-11590
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client
>    Affects Versions: 2.6.0
>         Environment: Releases:
> cloudera release cdh-5.5.0
> openjdk version "1.8.0_91"
> linux centos6 servers
> Cluster info:
> Namenode and resourcemanager in HA with kerberos authentication
> More than 1300 datanodes/nodemanagers
>            Reporter: Nicolas Fraison
>            Priority: Minor
>         Attachments: HDFS-11590.patch
>
>
> We have faced some huge slowdowns on our namenode due to all our nodemanagers continuing
to retry to renew a lease and reconnecting to the namenode every second during 1 hour due
to some HDFS_DELEGATION_TOKEN being expired or not in the cache.
> The number of time_wait connection on our namenode was stuck to the maximum configured
of 250k during this period due to the reconnections each time.
> {code}
> 2017-03-02 11:51:42,817 INFO SecurityLogger.org.apache.hadoop.security.authorize.ServiceAuthorizationManager:
Authorization successful for appattempt_1488396860014_156103_000001 (auth:TOKEN) for protocol=interface
org.apache.hadoop.yarn.api.ContainerManagementProtocolPB
>   2017-03-02 11:51:43,414 INFO SecurityLogger.org.apache.hadoop.security.authorize.ServiceAuthorizationManager:
Authorization successful for appattempt_1488396860014_156120_000001 (auth:TOKEN) for protocol=interface
org.apache.hadoop.yarn.api.ContainerManagementProtocolPB
>   2017-03-02 11:51:51,994 WARN org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException
as:prediction (auth:SIMPLE) cause:org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.token.SecretManager$InvalidToken):
token (HDFS_DELEGATION_TOKEN token 111018676 for prediction) is expired
>   2017-03-02 11:51:51,995 WARN org.apache.hadoop.ipc.Client: Exception encountered while
connecting to the server : org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.token.SecretManager$InvalidToken):
token (HDFS_DELEGATION_TOKEN token 111018676 for prediction) is expired
>   2017-03-02 11:51:51,995 WARN org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException
as:prediction (auth:SIMPLE) cause:org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.token.SecretManager$InvalidToken):
token (HDFS_DELEGATION_TOKEN token 111018676 for prediction) is expired
>   2017-03-02 11:51:51,995 WARN org.apache.hadoop.hdfs.LeaseRenewer: Failed to renew lease
for [DFSClient_NONMAPREDUCE_1560141256_4187204] for 30 seconds.  Will retry shortly ...
>   token (HDFS_DELEGATION_TOKEN token 111018676 for prediction) is expired
>      at org.apache.hadoop.ipc.Client.call(Client.java:1472)
>      at org.apache.hadoop.ipc.Client.call(Client.java:1403)
>      at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:230)
>      at com.sun.proxy.$Proxy20.renewLease(Unknown Source)
>      at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.renewLease(ClientNamenodeProtocolTranslatorPB.java:571)
>      at sun.reflect.GeneratedMethodAccessor74.invoke(Unknown Source)
>      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>      at java.lang.reflect.Method.invoke(Method.java:498)
>      at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:252)
>      at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:104)
>      at com.sun.proxy.$Proxy21.renewLease(Unknown Source)
>      at org.apache.hadoop.hdfs.DFSClient.renewLease(DFSClient.java:921)
>      at org.apache.hadoop.hdfs.LeaseRenewer.renew(LeaseRenewer.java:423)
>      at org.apache.hadoop.hdfs.LeaseRenewer.run(LeaseRenewer.java:448)
>      at org.apache.hadoop.hdfs.LeaseRenewer.access$700(LeaseRenewer.java:71)
>      at org.apache.hadoop.hdfs.LeaseRenewer$1.run(LeaseRenewer.java:304)
>      at java.lang.Thread.run(Thread.java:745)
>   2017-03-02 12:51:22,032 WARN org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException
as:prediction (auth:SIMPLE) cause:org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.token.SecretManager$InvalidToken):
token (HDFS_DELEGATION_TOKEN token 111018676 for prediction) can't be found in cache
>   2017-03-02 12:51:22,032 WARN org.apache.hadoop.ipc.Client: Exception encountered while
connecting to the server : org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.token.SecretManager$InvalidToken):
token (HDFS_DELEGATION_TOKEN token 111018676 for prediction) can't be found in cache
>   2017-03-02 12:51:22,033 WARN org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException
as:prediction (auth:SIMPLE) cause:org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.token.SecretManager$InvalidToken):
token (HDFS_DELEGATION_TOKEN token 111018676 for prediction) can't be found in cache
>   2017-03-02 12:51:22,033 WARN org.apache.hadoop.hdfs.DFSClient: Failed to renew lease
for DFSClient_NONMAPREDUCE_1560141256_4187204 for 3600 seconds (>= hard-limit =3600 seconds.)
Closing all files being written ...
>   token (HDFS_DELEGATION_TOKEN token 111018676 for prediction) can't be found in cache
>      at org.apache.hadoop.ipc.Client.call(Client.java:1472)
>      at org.apache.hadoop.ipc.Client.call(Client.java:1403)
>      at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:230)
>      at com.sun.proxy.$Proxy20.renewLease(Unknown Source)
>      at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.renewLease(ClientNamenodeProtocolTranslatorPB.java:571)
>      at sun.reflect.GeneratedMethodAccessor74.invoke(Unknown Source)
>      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>      at java.lang.reflect.Method.invoke(Method.java:498)
>      at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:252)
>      at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:104)
>      at com.sun.proxy.$Proxy21.renewLease(Unknown Source)
>      at org.apache.hadoop.hdfs.DFSClient.renewLease(DFSClient.java:921)
>      at org.apache.hadoop.hdfs.LeaseRenewer.renew(LeaseRenewer.java:423)
>      at org.apache.hadoop.hdfs.LeaseRenewer.run(LeaseRenewer.java:448)
>      at org.apache.hadoop.hdfs.LeaseRenewer.access$700(LeaseRenewer.java:71)
>      at org.apache.hadoop.hdfs.LeaseRenewer$1.run(LeaseRenewer.java:304)
>      at java.lang.Thread.run(Thread.java:745)
>   2017-03-02 12:51:27,364 WARN org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.AppLogAggregatorImpl:
rollingMonitorInterval is set as -1. The log rolling mornitoring interval is disabled. The
logs will be aggregated after this application is finished.
> {code}
> The root cause is the yarn proxy configuration having been removed, which in turn causes
the resource manager to be unable to renew the HDFS_DELEGATION_TOKEN.
> Even though the root cause has been identified, I don't think retrying to renew a lease
every second for an hour when there is an expiry/not found token issue is normal because this
is not an issue that can be recovered.



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