hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Chia-Ping Tsai (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-18750) Document the non-writebuffer for HTable
Date Sun, 03 Sep 2017 18:37:01 GMT
Chia-Ping Tsai created HBASE-18750:

             Summary: Document the non-writebuffer for HTable
                 Key: HBASE-18750
                 URL: https://issues.apache.org/jira/browse/HBASE-18750
             Project: HBase
          Issue Type: Sub-task
          Components: documentation
            Reporter: Chia-Ping Tsai
            Priority: Minor
             Fix For: 2.0.0-alpha-3

Cleanup the docs saying "HTable use write buffer"

Default size of the HTable client write buffer in bytes. A bigger buffer takes more memory — on
both the client and server side since server instantiates the passed write buffer to process
it — but a larger buffer size reduces the number of RPCs made. For an estimate of server-side
memory-used, evaluate hbase.client.write.buffer * hbase.regionserver.handler.count

Put either adds new rows to a table (if the key is new) or can update existing rows (if the
key already exists). Puts are executed via Table.put (writeBuffer) or Table.batch (non-writeBuffer).

This message was sent by Atlassian JIRA

View raw message