Filed https://issues.apache.org/jira/browse/HBASE-7805
Test case attached
It occurs only if the table has a region observer coprocessor.
James
On 02/09/2013 11:04 AM, lars hofhansl wrote:
If I execute in parallel multiple scans to different parts of the same region,
they appear to be processed serially. It's actually faster from the client side
to execute a single serial scan than it is to execute multiple parallel scans
to different segments of the region. I do have region observer coprocessors for
the table I'm scanning, but my code is not doing any synchronization.
>>
