hbase-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Wei Tan <w...@us.ibm.com>
Subject Re: coprocessor enabled put very slow, help please~~~
Date Mon, 18 Feb 2013 05:52:09 GMT
Is your CheckAndPut involving a local or remote READ? Due to the nature of 
LSM, read is much slower compared to a write...


Best Regards,
Wei




From:   Prakash Kadel <prakash.kadel@gmail.com>
To:     "user@hbase.apache.org" <user@hbase.apache.org>, 
Date:   02/17/2013 07:49 PM
Subject:        coprocessor enabled put very slow, help please~~~



hi,
   i am trying to insert few million documents to hbase with mapreduce. To 
enable quick search of docs i want to have some indexes, so i tried to use 
the coprocessors, but they are slowing down my inserts. Arent the 
coprocessors not supposed to increase the latency? 
my settings:
    3 region servers
   60 maps
each map inserts to doc table.(checkAndPut)
regionobserver coprocessor does a postCheckAndPut and inserts some rows to 
a index table.


Sincerely,
Prakash


Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message