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Posted to user@hive.apache.org by Edward Capriolo <ed...@gmail.com> on 2012/04/11 16:29:59 UTC
Thrift service + zklocks + time = death
Hey all,
Running 0.7.1
We are using a combination of hive-thrift+ zookeeper for locking. All
works well for a couple days until eventually we hit this condition.
HiveServerException(message:Query returned non-zero code: 10, cause:
FAILED: Error in acquiring locks: locks on the underlying objects
cannot be acquired. retry after some time, errorCode:10,
SQLState:42000)
at org.apache.hadoop.hive.service.ThriftHive$execute_result.read(ThriftHive.java:1494)
at org.apache.hadoop.hive.service.ThriftHive$Client.recv_execute(ThriftHive.java:120)
at org.apache.hadoop.hive.service.ThriftHive$Client.execute(ThriftHive.java:95)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoCachedMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:229)
at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:52)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:124)
XXX
XXX
XXX
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:145)
XXX
XXX
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:149)
at core.ScriptTemplate.run(ScriptTemplate.groovy:28)
at core.ScriptTemplate$run.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:124)
at core.ScriptTemplateRunner.main(ScriptTemplateRunner.groovy:19)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:88)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at groovy.lang.MetaClassImpl.invokeStaticMethod(MetaClassImpl.java:1302)
at org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:767)
at groovy.lang.GroovyShell.runScriptOrMainOrTestOrRunnable(GroovyShell.java:273)
at groovy.lang.GroovyShell.run(GroovyShell.java:229)
at groovy.lang.GroovyShell.run(GroovyShell.java:159)
at groovy.ui.GroovyMain.processOnce(GroovyMain.java:496)
at groovy.ui.GroovyMain.run(GroovyMain.java:311)
at groovy.ui.GroovyMain.process(GroovyMain.java:297)
at groovy.ui.GroovyMain.processArgs(GroovyMain.java:112)
at groovy.ui.GroovyMain.main(GroovyMain.java:93)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.groovy.tools.GroovyStarter.rootLoader(GroovyStarter.java:108)
at org.codehaus.groovy.tools.GroovyStarter.main(GroovyStarter.java:130)
}
It seems that eventually the hivethrifts connection to ZK goes stale
and then all queries fail with this message. Delta to event might be 3
days of 100 session. Any ideas?
Thanks,
Edward
Re: Thrift service + zklocks + time = death
Posted by Edward Capriolo <ed...@gmail.com>.
Once hive gets into this condition every meaningful query fails.
Calling this:
h.client.execute("describe fracture_act");
h.client.execute("show locks");
Will throw the exception.
I do not know if a specific query is causing this but I doubt it. We
have been using hive locks by default for months now doing single shot
'hive -e "myquery"' stuff. I have never found hive locks in this state
with the fat client.
I feel that since hive-thrift is long lived something inside of it
must be losing a ZKHandle or can not deal with ZK timing out. The fat
client is likely never to hit this condition.
Edward
On Wed, Apr 11, 2012 at 10:49 AM, Ashutosh Chauhan <ha...@apache.org> wrote:
> Premise of the locking is that in well-behaved queries you will obtain a
> lock at the start of the query and then relinquish it at the end of query.
> Since, locks are lease-based, in badly-behaving queries after lease expires,
> lock will be relinquished.
> Are you are NPE for same repeated query after couple of days it executing
> fine or you have many different queries of which some acquire locks while
> other dont? Do you see the failure on same kind of query every time or its a
> different query every time. It will be useful to find out which queries are
> resulting in this to debug this further.
>
> Ashutosh
> On Wed, Apr 11, 2012 at 07:43, Edward Capriolo <ed...@gmail.com>
> wrote:
>>
>> BTW the problem is not tables being locked. On the server side
>> acquireLocks is getting a null pointer.
>>
>> 32432495-OK
>> 32432498:Error in acquireLocks: java.lang.NullPointerException
>> 32432552-FAILED: Error in acquiring locks: locks on the underlying
>> objects cannot be acquired. retry after some time
>> 32432660-Hive history
>> file=/tmp/hadoop/hive_job_log_hadoop_201204111032_691199436.txt
>> 32432737-Hive history
>> file=/tmp/hadoop/hive_job_log_hadoop_201204111032_1845073466.txt
>>
>>
>> On Wed, Apr 11, 2012 at 10:29 AM, Edward Capriolo <ed...@gmail.com>
>> wrote:
>> > Hey all,
>> >
>> > Running 0.7.1
>> > We are using a combination of hive-thrift+ zookeeper for locking. All
>> > works well for a couple days until eventually we hit this condition.
>> >
>> > HiveServerException(message:Query returned non-zero code: 10, cause:
>> > FAILED: Error in acquiring locks: locks on the underlying objects
>> > cannot be acquired. retry after some time, errorCode:10,
>> > SQLState:42000)
>> > at
>> > org.apache.hadoop.hive.service.ThriftHive$execute_result.read(ThriftHive.java:1494)
>> > at
>> > org.apache.hadoop.hive.service.ThriftHive$Client.recv_execute(ThriftHive.java:120)
>> > at
>> > org.apache.hadoop.hive.service.ThriftHive$Client.execute(ThriftHive.java:95)
>> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> > at
>> > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>> > at
>> > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>> > at java.lang.reflect.Method.invoke(Method.java:597)
>> > at
>> > org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoCachedMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:229)
>> > at
>> > org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:52)
>> > at
>> > org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
>> > at
>> > org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
>> > at
>> > org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:124)
>> > XXX
>> > XXX
>> > XXX
>> > at
>> > org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)
>> > at
>> > org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
>> > at
>> > org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:145)
>> > XXX
>> > XXX
>> > at
>> > org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)
>> > at
>> > org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
>> > at
>> > org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:149)
>> > at core.ScriptTemplate.run(ScriptTemplate.groovy:28)
>> > at core.ScriptTemplate$run.call(Unknown Source)
>> > at
>> > org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
>> > at
>> > org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
>> > at
>> > org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:124)
>> > at core.ScriptTemplateRunner.main(ScriptTemplateRunner.groovy:19)
>> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> > at
>> > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>> > at
>> > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>> > at java.lang.reflect.Method.invoke(Method.java:597)
>> > at
>> > org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:88)
>> > at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
>> > at
>> > groovy.lang.MetaClassImpl.invokeStaticMethod(MetaClassImpl.java:1302)
>> > at
>> > org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:767)
>> > at
>> > groovy.lang.GroovyShell.runScriptOrMainOrTestOrRunnable(GroovyShell.java:273)
>> > at groovy.lang.GroovyShell.run(GroovyShell.java:229)
>> > at groovy.lang.GroovyShell.run(GroovyShell.java:159)
>> > at groovy.ui.GroovyMain.processOnce(GroovyMain.java:496)
>> > at groovy.ui.GroovyMain.run(GroovyMain.java:311)
>> > at groovy.ui.GroovyMain.process(GroovyMain.java:297)
>> > at groovy.ui.GroovyMain.processArgs(GroovyMain.java:112)
>> > at groovy.ui.GroovyMain.main(GroovyMain.java:93)
>> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> > at
>> > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>> > at
>> > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>> > at java.lang.reflect.Method.invoke(Method.java:597)
>> > at
>> > org.codehaus.groovy.tools.GroovyStarter.rootLoader(GroovyStarter.java:108)
>> > at
>> > org.codehaus.groovy.tools.GroovyStarter.main(GroovyStarter.java:130)
>> > }
>> >
>> > It seems that eventually the hivethrifts connection to ZK goes stale
>> > and then all queries fail with this message. Delta to event might be 3
>> > days of 100 session. Any ideas?
>> >
>> > Thanks,
>> > Edward
>
>
Re: Thrift service + zklocks + time = death
Posted by Ashutosh Chauhan <ha...@apache.org>.
Premise of the locking is that in well-behaved queries you will obtain a
lock at the start of the query and then relinquish it at the end of query.
Since, locks are lease-based, in badly-behaving queries after lease
expires, lock will be relinquished.
Are you are NPE for same repeated query after couple of days it executing
fine or you have many different queries of which some acquire locks while
other dont? Do you see the failure on same kind of query every time or its
a different query every time. It will be useful to find out which queries
are resulting in this to debug this further.
Ashutosh
On Wed, Apr 11, 2012 at 07:43, Edward Capriolo <ed...@gmail.com>wrote:
> BTW the problem is not tables being locked. On the server side
> acquireLocks is getting a null pointer.
>
> 32432495-OK
> 32432498:Error in acquireLocks: java.lang.NullPointerException
> 32432552-FAILED: Error in acquiring locks: locks on the underlying
> objects cannot be acquired. retry after some time
> 32432660-Hive history
> file=/tmp/hadoop/hive_job_log_hadoop_201204111032_691199436.txt
> 32432737-Hive history
> file=/tmp/hadoop/hive_job_log_hadoop_201204111032_1845073466.txt
>
>
> On Wed, Apr 11, 2012 at 10:29 AM, Edward Capriolo <ed...@gmail.com>
> wrote:
> > Hey all,
> >
> > Running 0.7.1
> > We are using a combination of hive-thrift+ zookeeper for locking. All
> > works well for a couple days until eventually we hit this condition.
> >
> > HiveServerException(message:Query returned non-zero code: 10, cause:
> > FAILED: Error in acquiring locks: locks on the underlying objects
> > cannot be acquired. retry after some time, errorCode:10,
> > SQLState:42000)
> > at
> org.apache.hadoop.hive.service.ThriftHive$execute_result.read(ThriftHive.java:1494)
> > at
> org.apache.hadoop.hive.service.ThriftHive$Client.recv_execute(ThriftHive.java:120)
> > at
> org.apache.hadoop.hive.service.ThriftHive$Client.execute(ThriftHive.java:95)
> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> > at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> > at java.lang.reflect.Method.invoke(Method.java:597)
> > at
> org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoCachedMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:229)
> > at
> org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:52)
> > at
> org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
> > at
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
> > at
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:124)
> > XXX
> > XXX
> > XXX
> > at
> org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)
> > at
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
> > at
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:145)
> > XXX
> > XXX
> > at
> org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)
> > at
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
> > at
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:149)
> > at core.ScriptTemplate.run(ScriptTemplate.groovy:28)
> > at core.ScriptTemplate$run.call(Unknown Source)
> > at
> org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
> > at
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
> > at
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:124)
> > at core.ScriptTemplateRunner.main(ScriptTemplateRunner.groovy:19)
> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> > at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> > at java.lang.reflect.Method.invoke(Method.java:597)
> > at
> org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:88)
> > at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
> > at
> groovy.lang.MetaClassImpl.invokeStaticMethod(MetaClassImpl.java:1302)
> > at
> org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:767)
> > at
> groovy.lang.GroovyShell.runScriptOrMainOrTestOrRunnable(GroovyShell.java:273)
> > at groovy.lang.GroovyShell.run(GroovyShell.java:229)
> > at groovy.lang.GroovyShell.run(GroovyShell.java:159)
> > at groovy.ui.GroovyMain.processOnce(GroovyMain.java:496)
> > at groovy.ui.GroovyMain.run(GroovyMain.java:311)
> > at groovy.ui.GroovyMain.process(GroovyMain.java:297)
> > at groovy.ui.GroovyMain.processArgs(GroovyMain.java:112)
> > at groovy.ui.GroovyMain.main(GroovyMain.java:93)
> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> > at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> > at java.lang.reflect.Method.invoke(Method.java:597)
> > at
> org.codehaus.groovy.tools.GroovyStarter.rootLoader(GroovyStarter.java:108)
> > at
> org.codehaus.groovy.tools.GroovyStarter.main(GroovyStarter.java:130)
> > }
> >
> > It seems that eventually the hivethrifts connection to ZK goes stale
> > and then all queries fail with this message. Delta to event might be 3
> > days of 100 session. Any ideas?
> >
> > Thanks,
> > Edward
>
Re: Thrift service + zklocks + time = death
Posted by Edward Capriolo <ed...@gmail.com>.
BTW the problem is not tables being locked. On the server side
acquireLocks is getting a null pointer.
32432495-OK
32432498:Error in acquireLocks: java.lang.NullPointerException
32432552-FAILED: Error in acquiring locks: locks on the underlying
objects cannot be acquired. retry after some time
32432660-Hive history
file=/tmp/hadoop/hive_job_log_hadoop_201204111032_691199436.txt
32432737-Hive history
file=/tmp/hadoop/hive_job_log_hadoop_201204111032_1845073466.txt
On Wed, Apr 11, 2012 at 10:29 AM, Edward Capriolo <ed...@gmail.com> wrote:
> Hey all,
>
> Running 0.7.1
> We are using a combination of hive-thrift+ zookeeper for locking. All
> works well for a couple days until eventually we hit this condition.
>
> HiveServerException(message:Query returned non-zero code: 10, cause:
> FAILED: Error in acquiring locks: locks on the underlying objects
> cannot be acquired. retry after some time, errorCode:10,
> SQLState:42000)
> at org.apache.hadoop.hive.service.ThriftHive$execute_result.read(ThriftHive.java:1494)
> at org.apache.hadoop.hive.service.ThriftHive$Client.recv_execute(ThriftHive.java:120)
> at org.apache.hadoop.hive.service.ThriftHive$Client.execute(ThriftHive.java:95)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoCachedMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:229)
> at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:52)
> at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
> at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
> at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:124)
> XXX
> XXX
> XXX
> at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)
> at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
> at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:145)
> XXX
> XXX
> at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)
> at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
> at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:149)
> at core.ScriptTemplate.run(ScriptTemplate.groovy:28)
> at core.ScriptTemplate$run.call(Unknown Source)
> at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
> at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
> at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:124)
> at core.ScriptTemplateRunner.main(ScriptTemplateRunner.groovy:19)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:88)
> at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
> at groovy.lang.MetaClassImpl.invokeStaticMethod(MetaClassImpl.java:1302)
> at org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:767)
> at groovy.lang.GroovyShell.runScriptOrMainOrTestOrRunnable(GroovyShell.java:273)
> at groovy.lang.GroovyShell.run(GroovyShell.java:229)
> at groovy.lang.GroovyShell.run(GroovyShell.java:159)
> at groovy.ui.GroovyMain.processOnce(GroovyMain.java:496)
> at groovy.ui.GroovyMain.run(GroovyMain.java:311)
> at groovy.ui.GroovyMain.process(GroovyMain.java:297)
> at groovy.ui.GroovyMain.processArgs(GroovyMain.java:112)
> at groovy.ui.GroovyMain.main(GroovyMain.java:93)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.codehaus.groovy.tools.GroovyStarter.rootLoader(GroovyStarter.java:108)
> at org.codehaus.groovy.tools.GroovyStarter.main(GroovyStarter.java:130)
> }
>
> It seems that eventually the hivethrifts connection to ZK goes stale
> and then all queries fail with this message. Delta to event might be 3
> days of 100 session. Any ideas?
>
> Thanks,
> Edward