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https://issues.apache.org/jira/browse/CASSANDRA-19671?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17851519#comment-17851519
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Arun Ganesh edited comment on CASSANDRA-19671 at 6/3/24 4:58 AM:
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[~bschoeni],
For the keyspace space-used metric, is it just a sum of the space-used values
of all the tables under it?
And, I already see a {{localReadWriteRatio}} for the tables in
{{StatsTable.java}}. Do you mean something else?
{code:java}
...
Speculative retries: 0
Local read count: 2
Local read latency: 8.774 ms
Local write count: 1
Local write latency: 2.759 ms
Local read/write ratio: 2.000
Pending flushes: 0
Percent repaired: 0.0
Bytes repaired: 0
Bytes unrepaired: 37
...
{code}
was (Author: JIRAUSER303038):
[~bschoeni],
For the keyspace space-used metric, is it just a sum of the space-used values
of all the tables under it?
And, I already see a {{localReadWriteRatio}} for the tables in
{{StatsTable.java}}. Do you mean something else?
{code:java}
...
Speculative retries: 0
Local read count: 2
Local read latency: 8.774 ms
Local write count: 1
Local write latency: 2.759 ms
{color:#FF8B00}Local read/write ratio: 2.000{color}
Pending flushes: 0
Percent repaired: 0.0
Bytes repaired: 0
Bytes unrepaired: 37
...
{code}
> Nodetool tabestats: add keyspace space used and table r/w ratio
> ---------------------------------------------------------------
>
> Key: CASSANDRA-19671
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19671
> Project: Cassandra
> Issue Type: Improvement
> Components: Tool/nodetool
> Reporter: Brad Schoening
> Priority: Normal
>
> Nodetool tabestats reports the space used live and total per table, but not
> for the entire keyspace. This would be useful information.
> Also, in the table level stats, it would be useful to have the read/write
> ratio. This metric is important in choosing compaction strategies such as
> LCS.
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