http://blogs.opcodesolutions.com/roller/java/entry/solve_java_lang_outofmemoryerror_java
https://blogs.oracle.com/alanb/entry/heap_dumps_are_back_with Or use a profiler or visualvm etc. There are tons of tools you can use to debug memory problems. On Wed, Jan 16, 2013 at 5:15 PM, Mohit Anchlia <[email protected]>wrote: > channel transaction is 500 and I've not set any batchsize parameter. > > > On Wed, Jan 16, 2013 at 1:49 PM, Bhaskar V. Karambelkar < > [email protected]> wrote: > >> What is the channel transaction capacity and HDFS batch size ? >> >> >> On Wed, Jan 16, 2013 at 1:52 PM, Mohit Anchlia <[email protected]>wrote: >> >>> I often get out of memory even when there is no load on the system. I am >>> wondering what's the best way to debug this. I have heap size set to 2G and >>> memory capacity is 10000 >>> >>> >>> *13/01/16* *09:09:38* *ERROR* *hdfs.HDFSEventSink:* *process* *failed* >>> >>> >>> *java.lang.OutOfMemoryError:* *Java* *heap* *space* >>> *at* *java.util.Arrays.copyOf*(*Arrays.java:2786*) >>> >>> >>> >>> *at* >>> *java.io.ByteArrayOutputStream.write*(*ByteArrayOutputStream.java:94*) >>> >>> *at* *java.io.DataOutputStream.write*(*DataOutputStream.java:90*) >>> >>> *at* *org.apache.hadoop.io.Text.write*(*Text.java:282*) >>> *...* *11* *lines* *omitted* *...* >>> *at* *java.lang.Thread.run*(*Thread.java:662*) >>> >>> >>> *Exception* *in* *thread* "*SinkRunner-PollingRunner-DefaultSinkProcessor*" >>> *java.lang.OutOfMemoryError:* *Java* *heap* *space* >>> >>> >>> >>> *at* *java.util.Arrays.copyOf*(*Arrays.java:2786*) >>> >>> *at* >>> *java.io.ByteArrayOutputStream.write*(*ByteArrayOutputStream.java:94*) >>> >>> >> >
