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https://issues.apache.org/jira/browse/CASSANDRA-11587?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15304837#comment-15304837
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Mahdi Mohammadi commented on CASSANDRA-11587:
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Branch for [2.2|https://github.com/mm-binary/cassandra/tree/11587-2.2]
Branch for [3.0|https://github.com/mm-binary/cassandra/tree/11587-3.0]
Branch for [3.6|https://github.com/mm-binary/cassandra/tree/11587-3.6]
> Cfstats estimate number of keys should return 0 for empty table
> ---------------------------------------------------------------
>
> Key: CASSANDRA-11587
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11587
> Project: Cassandra
> Issue Type: Bug
> Components: Tools
> Environment: Cassandra 2.1.13
> Nodeltool
> Reporter: Jane Deng
> Assignee: Mahdi Mohammadi
> Priority: Trivial
> Labels: lhf
>
> If sstable count is 0, the "estimate number of keys" in cfstats shows -1.
> {noformat}
> SSTable count: 0
> Number of keys (estimate): -1
> {noformat}
> The initial value of keyCount in SSTableReader is -1. When there is no
> sstable, nor entry in memtable, the keyCount isn't increased. Cfstats should
> have some boundary check and return 0 for this case.
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