Elliott Clark created HBASE-7647:
------------------------------------
Summary: 0.94 hfiles v2.1 are not backwards compatible with
HFilev2.0
Key: HBASE-7647
URL: https://issues.apache.org/jira/browse/HBASE-7647
Project: HBase
Issue Type: Bug
Components: HFile
Affects Versions: 0.94.4
Reporter: Elliott Clark
Assignee: Elliott Clark
When doing a rolling re-start from 0.92.x to 0.94.x any hfiles written by 0.94
are incompatibile with any of the 0.92 region servers. This is caused by the
checksums being put into 0.94.
* a minor version was added
* checksums were put into the block
* checksum meta data was added to block headers.
I propose that since these changes are only needed if using
hbase.regionserver.checksum.verify, they should be turned off if that option is
turned off. Doing so will allow rolling upgrades to go smoother.
If a user wants to go from a 0.92 cluster to a 0.94 cluster with
hbase.regionserver.checksum.verify they can:
* Roll out 0.94
* Change hbase-site.xml
* roll restart the region servers.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
