[
https://issues.apache.org/jira/browse/HIVE-16071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15900942#comment-15900942
]
Rui Li commented on HIVE-16071:
-------------------------------
I looked more into the code and it turned out to be trickier than I thought. In
case the client doesn't send SaslMessage (due to busy network or failure), the
SaslHandler can detect disconnection, but it won't be able to know which Future
to fail because it hasn't received the client ID (neither can cancelTask). The
situation is we may have multiple pending clients/futures in RpcServer, and all
we know now is one channel closed unexpectedly. I can't think of how to deal
with it.
> Spark remote driver misuses the timeout in RPC handshake
> --------------------------------------------------------
>
> Key: HIVE-16071
> URL: https://issues.apache.org/jira/browse/HIVE-16071
> Project: Hive
> Issue Type: Bug
> Components: Spark
> Reporter: Chaoyu Tang
> Assignee: Chaoyu Tang
> Attachments: HIVE-16071.patch
>
>
> Based on its property description in HiveConf and the comments in HIVE-12650
> (https://issues.apache.org/jira/browse/HIVE-12650?focusedCommentId=15128979&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15128979),
> hive.spark.client.connect.timeout is the timeout when the spark remote
> driver makes a socket connection (channel) to RPC server. But currently it is
> also used by the remote driver for RPC client/server handshaking, which is
> not right. Instead, hive.spark.client.server.connect.timeout should be used
> and it has already been used by the RPCServer in the handshaking.
> The error like following is usually caused by this issue, since the default
> hive.spark.client.connect.timeout value (1000ms) used by remote driver for
> handshaking is a little too short.
> {code}
> 17/02/20 08:46:08 ERROR yarn.ApplicationMaster: User class threw exception:
> java.util.concurrent.ExecutionException: javax.security.sasl.SaslException:
> Client closed before SASL negotiation finished.
> java.util.concurrent.ExecutionException: javax.security.sasl.SaslException:
> Client closed before SASL negotiation finished.
> at io.netty.util.concurrent.AbstractFuture.get(AbstractFuture.java:37)
> at
> org.apache.hive.spark.client.RemoteDriver.<init>(RemoteDriver.java:156)
> at
> org.apache.hive.spark.client.RemoteDriver.main(RemoteDriver.java:556)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
> org.apache.spark.deploy.yarn.ApplicationMaster$$anon$2.run(ApplicationMaster.scala:542)
> Caused by: javax.security.sasl.SaslException: Client closed before SASL
> negotiation finished.
> at
> org.apache.hive.spark.client.rpc.Rpc$SaslClientHandler.dispose(Rpc.java:453)
> at
> org.apache.hive.spark.client.rpc.SaslHandler.channelInactive(SaslHandler.java:90)
> {code}
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
