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https://issues.apache.org/jira/browse/HBASE-9086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13726154#comment-13726154
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Lars Hofhansl commented on HBASE-9086:
--------------------------------------
Patch looks good. Some indentation issues, can be fixed upon commit.
Nit:
{code}
+ filter = org.apache.hadoop.hbase.filter.FirstKeyOnlyFilter.new
+ if key_only == 'yes'
+ filter = org.apache.hadoop.hbase.filter.KeyOnlyFilter.new
+ else
{code}
Could move create of the FirstKeyOnlyFilter into the else branch.
> Add some options to improve count performance
> ---------------------------------------------
>
> Key: HBASE-9086
> URL: https://issues.apache.org/jira/browse/HBASE-9086
> Project: HBase
> Issue Type: Wish
> Components: shell
> Affects Versions: 0.94.2
> Reporter: Cheney Sun
> Attachments: HBase-9086.patch
>
>
> The current count command in HBase shell is quite slow if the row size is
> very big (100+kB each). It would be helpful to provide some option to specify
> the column to count, which could give user a chance to reduce the data volume
> to scan.
> IMHO, only count the row key would be the ideal solution. Not sure how
> difficult to implement it.
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