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From "Zheng Hu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17953) VerifyReplication should read all versions other than the latest version by default.
Date Mon, 24 Apr 2017 15:04:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15981307#comment-15981307
] 

Zheng Hu commented on HBASE-17953:
----------------------------------

If create a new table with VERSION =3 ,and the user start a VerifyReplication job without
setting versions option (newcomer did not realize that he need to set versions option) , 
then the job just verify the lastest version. 

Furthermore, we have the following javadoc but only verify  the lastest version by default.

{code}
/**
 * This map-only job compares the data from a local table with a remote one.
 * Every cell is compared and must have exactly the same keys (even timestamp)
 * as well as same value. It is possible to restrict the job by time range and
 * families. The peer id that's provided must match the one given when the
 * replication stream was setup.
 * <p>
 * Two counters are provided, Verifier.Counters.GOODROWS and BADROWS. The reason
 * for a why a row is different is shown in the map's log.
 */
{code}

> VerifyReplication should read all versions other than the latest version by default.
> ------------------------------------------------------------------------------------
>
>                 Key: HBASE-17953
>                 URL: https://issues.apache.org/jira/browse/HBASE-17953
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Zheng Hu
>            Assignee: Zheng Hu
>
> Two  problems for VerifyReplication.java: 
> 1.  With the default versions ( DO NOT set --versions option) ,  we will  read the latest
version other than all version,  because Scan.maxVersions is 1.   Actuallly, I think we
should compare all version by default.
> 2.   In logFailRowAndIncreaseCounter() method ,  we should set  familly/TimeRange/maxVersions
attrs for a Get. 



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