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From Yatong Zhang <bluefl...@gmail.com>
Subject Re: ava.lang.OutOfMemoryError: unable to create new native thread
Date Wed, 17 Sep 2014 14:58:17 GMT
sorry, about 300k+

On Wed, Sep 17, 2014 at 10:56 PM, Yatong Zhang <blueflycn@gmail.com> wrote:

> no, I am running 64 bit JVM。 But I have many sstable files, about 30k+
>
> On Wed, Sep 17, 2014 at 10:50 PM, graham sanderson <graham@vast.com>
> wrote:
>
>> Are you running on a 32 bit JVM?
>>
>> On Sep 17, 2014, at 9:43 AM, Yatong Zhang <blueflycn@gmail.com> wrote:
>>
>> Hi there,
>>
>> I am using leveled compaction strategy and have many sstable files. The
>> error was during the startup, so any idea about this?
>>
>>
>>> ERROR [FlushWriter:4] 2014-09-17 22:36:59,383 CassandraDaemon.java (line
>>> 199) Exception in thread Thread[FlushWriter:4,5,main]
>>> java.lang.OutOfMemoryError: unable to create new native thread
>>>         at java.lang.Thread.start0(Native Method)
>>>         at java.lang.Thread.start(Thread.java:693)
>>>         at
>>> java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:949)
>>>         at
>>> java.util.concurrent.ThreadPoolExecutor.processWorkerExit(ThreadPoolExecutor.java:1017)
>>>         at
>>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1163)
>>>         at
>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>>>         at java.lang.Thread.run(Thread.java:724)
>>> ERROR [FlushWriter:2] 2014-09-17 22:36:59,472 CassandraDaemon.java (line
>>> 199) Exception in thread Thread[FlushWriter:2,5,main]
>>> FSReadError in
>>> /data5/cass/system/compactions_in_progress/system-compactions_in_progress-jb-23-Index.db
>>>         at
>>> org.apache.cassandra.io.util.MmappedSegmentedFile$Builder.createSegments(MmappedSegmentedFile.java:200)
>>>         at
>>> org.apache.cassandra.io.util.MmappedSegmentedFile$Builder.complete(MmappedSegmentedFile.java:168)
>>>         at
>>> org.apache.cassandra.io.sstable.SSTableWriter.closeAndOpenReader(SSTableWriter.java:334)
>>>         at
>>> org.apache.cassandra.io.sstable.SSTableWriter.closeAndOpenReader(SSTableWriter.java:324)
>>>         at
>>> org.apache.cassandra.db.Memtable$FlushRunnable.writeSortedContents(Memtable.java:394)
>>>         at
>>> org.apache.cassandra.db.Memtable$FlushRunnable.runWith(Memtable.java:342)
>>>         at
>>> org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48)
>>>         at
>>> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
>>>         at
>>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>>>         at
>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>>>         at java.lang.Thread.run(Thread.java:724)
>>> Caused by: java.io.IOException: Map failed
>>>         at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:849)
>>>         at
>>> org.apache.cassandra.io.util.MmappedSegmentedFile$Builder.createSegments(MmappedSegmentedFile.java:192)
>>>         ... 10 more
>>> Caused by: java.lang.OutOfMemoryError: Map failed
>>>         at sun.nio.ch.FileChannelImpl.map0(Native Method)
>>>         at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:846)
>>>         ... 11 more
>>>
>>
>>
>>
>

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