hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-10321) CellCodec has broken the 96 client to 98 server compatibility
Date Mon, 13 Jan 2014 17:32:55 GMT

     [ https://issues.apache.org/jira/browse/HBASE-10321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Anoop Sam John updated HBASE-10321:
-----------------------------------

      Resolution: Fixed
    Release Note: A new Codec CellCodecV2 is added which can do all the work of CellCodec
plus writing/reading Tags. CellCodec will not be able to handle tags. When one wants to use
CellCodec and tags need to use CellCodecV2.
    Hadoop Flags: Reviewed
          Status: Resolved  (was: Patch Available)

Committed to Trunk and 0.98.   Thanks for the reviews.

> CellCodec has broken the 96 client to 98 server compatibility
> -------------------------------------------------------------
>
>                 Key: HBASE-10321
>                 URL: https://issues.apache.org/jira/browse/HBASE-10321
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.98.0
>            Reporter: Anoop Sam John
>            Assignee: Anoop Sam John
>            Priority: Blocker
>             Fix For: 0.98.0, 0.99.0
>
>         Attachments: HBASE-10321.patch, HBASE-10321_V2.patch
>
>
> The write/read tags added in CellCodec has broken the 96 client to 98 server compatibility
(and 98 client to 96 server)
> When 96 client CellCodec writes cell, it won't write tags part at all. But the server
expects a tag part, at least a 0 tag length. This tag length read will make a read of some
bytes from next cell!
> I suggest we can remove the tag part from CellCodec. This codec is not used by default
and I don't think some one will change to CellCodec from the default KVCodec now. ..
> This makes tags not supported via CellCodec..Tag support can be added to CellCodec once
we have Connection negotiation in place (?)



--
This message was sent by Atlassian JIRA
(v6.1.5#6160)

Mime
View raw message