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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2018/02/14 04:21:01 UTC

[jira] [Created] (HBASE-19997) [rolling upgrade] 1.x => 2.x

stack created HBASE-19997:
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             Summary: [rolling upgrade] 1.x => 2.x
                 Key: HBASE-19997
                 URL: https://issues.apache.org/jira/browse/HBASE-19997
             Project: HBase
          Issue Type: Umbrella
            Reporter: stack
             Fix For: 2.0.0


An umbrella issue of issues needed so folks can do a rolling upgrade from hbase-1.x to hbase-2.x.

(Recent) Notables:
 * hbase-1.x can't read hbase-2.x WALs -- hbase-1.x doesn't know the AsyncProtobufLogWriter class used writing the WAL -- see https://issues.apache.org/jira/browse/HBASE-19166?focusedCommentId=16362897&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16362897 for exception.
 ** Might be ok... means WAL split fails on an hbase1 RS... must wait till an hbase-2.x RS picks up the WAL for it to be split.
 * hbase-1 can't open regions from tables created by hbase-2; it can't find the Table descriptor. See https://issues.apache.org/jira/browse/HBASE-19116?focusedCommentId=16363276&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16363276
 ** This might be ok if the tables we are doing rolling upgrade over were written with hbase-1.





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