Sure, I can find the stack trace for some exceptions:
ERROR [pool-2-thread-132] 2011-07-23 13:29:04,869 Cassandra.java (line 3210)
Internal error processing get_range_slices
java.lang.NullPointerException
at org.apache.cassandra.db.ColumnFamily.diff(ColumnFamily.java:298)
at org.apache.cassandra.db.ColumnFamily.diff(ColumnFamily.java:406)
at
org.apache.cassandra.service.RowRepairResolver.maybeScheduleRepairs(RowRepairResolver.java:103)
at
org.apache.cassandra.service.RangeSliceResponseResolver$2.getReduced(RangeSliceResponseResolver.java:120)
at
org.apache.cassandra.service.RangeSliceResponseResolver$2.getReduced(RangeSliceResponseResolver.java:85)
at
org.apache.cassandra.utils.ReducingIterator.computeNext(ReducingIterator.java:74)
at
com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:140)
at
com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:135)
at
org.apache.cassandra.service.StorageProxy.getRangeSlice(StorageProxy.java:715)
at
org.apache.cassandra.thrift.CassandraServer.get_range_slices(CassandraServer.java:617)
at
org.apache.cassandra.thrift.Cassandra$Processor$get_range_slices.process(Cassandra.java:3202)
at
org.apache.cassandra.thrift.Cassandra$Processor.process(Cassandra.java:2889)
at
org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(CustomTThreadPoolServer.java:187)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:636)
INFO [NonPeriodicTasks:1] 2011-07-23 13:38:23,284 ColumnFamilyStore.java
(line 1013) Enqueuing flush of Memtable-MessageKey@2036597133(5020/62750
serialized/live bytes, 61 ops)
But can no for some others:
ERROR [pool-2-thread-181] 2011-07-27 11:20:39,550 Cassandra.java (line 3210)
Internal error processing get_range_slices
java.lang.NullPointerException
INFO [NonPeriodicTasks:1] 2011-07-27 11:22:43,561 ColumnFamilyStore.java
(line 1013) Enqueuing flush of Memtable-MessageKey@1288355086(74715/933937
serialized/live bytes, 773 ops)
Why does this happen?
Thanks.
On Fri, Aug 5, 2011 at 6:26 AM, aaron morton <aa...@thelastpickle.com>wrote:
> The error log will contain a call stack, we need that.
>
> e.g.
>
> Failed with exception java.io.IOException:java.lang.NullPointerException
> ERROR 15:22:33,528 Failed with exception
> java.io.IOException:java.lang.NullPointerException
> java.io.IOException: java.lang.NullPointerException
> at
> org.apache.hadoop.hive.ql.exec.FetchOperator.getNextRow(FetchOperator.java:341)
> at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:133)
> at org.apache.hadoop.hive.ql.Driver.getResults(Driver.java:1114)
> at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:187)
> at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:241)
> at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:456)
> 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.apache.hadoop.util.RunJar.main(RunJar.java:156)
> Caused by: java.lang.NullPointerException
> at
> org.apache.cassandra.hadoop.ColumnFamilyRecordReader.getCurrentKey(ColumnFamilyRecordReader.java:82)
> at
> org.apache.cassandra.hadoop.ColumnFamilyRecordReader.getCurrentKey(ColumnFamilyRecordReader.java:53)
> at
> org.apache.hadoop.hive.cassandra.input.HiveCassandraStandardColumnInputFormat$2.next(HiveCassandraStandardColumnInputFormat.java:164)
> at
> org.apache.hadoop.hive.cassandra.input.HiveCassandraStandardColumnInputFormat$2.next(HiveCassandraStandardColumnInputFormat.java:111)
> at
> org.apache.hadoop.hive.ql.exec.FetchOperator.getNextRow(FetchOperator.java:326)
> ... 10 more
>
> Cheers
>
> -----------------
> Aaron Morton
> Freelance Cassandra Developer
> @aaronmorton
> http://www.thelastpickle.com
>
> On 4 Aug 2011, at 15:26, Dikang Gu wrote:
>
> Yes, I do find the error log!
>
> ERROR [pool-2-thread-63] 2011-08-04 13:23:54,138 Cassandra.java (line 3210)
> Internal error processing get_range_slices
> java.lang.NullPointerException
>
> I'm using the cassandra-0.8.1, is this a known bug?
>
> Thanks.
>
> --
> Dikang Gu
> 0086 - 18611140205
>
> On Wednesday, August 3, 2011 at 7:53 PM, aaron morton wrote:
>
> There really should be something logged at the ERROR level in the server
> side log, that error is raised when an unhanded exception bubbles out to the
> thrift layer on the server.
>
> Double check the logging is configured correctly.
>
> Cheers
>
> -----------------
> Aaron Morton
> Freelance Cassandra Developer
> @aaronmorton
> http://www.thelastpickle.com
>
> On 3 Aug 2011, at 14:19, Dikang Gu wrote:
>
> I got this error when processing a lot operations….
>
> 2011-08-03 11:26:35,786 ERROR [com.iw.nebula.dao.simpledb.SimpleDBAdapter]
> - <Cassandra encountered an internal error processing this request:
> TApplicationError type: 6 message:Internal error processing batch_mutate>
>
> 2011-08-03 11:48:21,998 ERROR [com.iw.nebula.dao.simpledb.SimpleDBAdapter]
> - <Cassandra encountered an internal error processing this request:
> TApplicationError type: 6 message:Internal error processing
> get_range_slices>
>
> I did not see anything wrong in the cassandra/system.log
>
> What's your suggestions?
>
> --
> Dikang Gu
> 0086 - 18611140205
>
>
>
>
--
Dikang Gu
0086 - 18611140205
