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Posted to user@hbase.apache.org by ch huang <ju...@gmail.com> on 2014/06/18 11:05:21 UTC

hbase export very slow

hi,mailist:
              i use hbase export tool export hbase data to HDFS,but it very
slow,the first 4map finished in 1min ,but the fifth map task run 35min
before it finished ,why?

Re: hbase export very slow

Posted by Ted Yu <yu...@gmail.com>.

Do you have a large region that the fifth map task might be working on ?

Cheers

On Wed, Jun 18, 2014 at 2:05 AM, ch huang <ju...@gmail.com> wrote:

> hi,mailist:
>               i use hbase export tool export hbase data to HDFS,but it very
> slow,the first 4map finished in 1min ,but the fifth map task run 35min
> before it finished ,why?
>