[jira] [Updated] (CASSANDRA-8880) Add metrics to monitor the amount of tombstones created
[
https://issues.apache.org/jira/browse/CASSANDRA-8880?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jeremy Hanna updated CASSANDRA-8880:
Complexity: Low Hanging Fruit
> Add metrics to monitor the amount of tombstones created
> ---
>
> Key: CASSANDRA-8880
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8880
> Project: Cassandra
> Issue Type: Improvement
>Reporter: Michaël Figuière
>Priority: Low
> Labels: lhf, metrics
> Fix For: 2.1.x
>
> Attachments: cassandra-2.1-8880.patch
>
>
> AFAIK there's currently no way to monitor the amount of tombstones created on
> a Cassandra node. CASSANDRA-6057 has made it possible for users to figure out
> how many tombstones are scanned at read time, but in write mostly workloads,
> it may not be possible to realize if some inappropriate queries are
> generating too many tombstones.
> Therefore the following additional metrics should be added:
> * {{writtenCells}}: amount of cells that have been written
> * {{writtenTombstoneCells}}: amount of tombstone cells that have been written
> Alternatively these could be exposed as a single gauge such as
> {{writtenTombstoneCellsRatio}}.
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[jira] [Updated] (CASSANDRA-8880) Add metrics to monitor the amount of tombstones created
[
https://issues.apache.org/jira/browse/CASSANDRA-8880?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sylvain Lebresne updated CASSANDRA-8880:
Labels: lhf metrics (was: metrics)
> Add metrics to monitor the amount of tombstones created
> ---
>
> Key: CASSANDRA-8880
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8880
> Project: Cassandra
> Issue Type: Improvement
>Reporter: Michaël Figuière
>Priority: Minor
> Labels: lhf, metrics
> Fix For: 2.1.x
>
> Attachments: cassandra-2.1-8880.patch
>
>
> AFAIK there's currently no way to monitor the amount of tombstones created on
> a Cassandra node. CASSANDRA-6057 has made it possible for users to figure out
> how many tombstones are scanned at read time, but in write mostly workloads,
> it may not be possible to realize if some inappropriate queries are
> generating too many tombstones.
> Therefore the following additional metrics should be added:
> * {{writtenCells}}: amount of cells that have been written
> * {{writtenTombstoneCells}}: amount of tombstone cells that have been written
> Alternatively these could be exposed as a single gauge such as
> {{writtenTombstoneCellsRatio}}.
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[jira] [Updated] (CASSANDRA-8880) Add metrics to monitor the amount of tombstones created
[
https://issues.apache.org/jira/browse/CASSANDRA-8880?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Lyuben Todorov updated CASSANDRA-8880:
--
Assignee: (was: Lyuben Todorov)
Add metrics to monitor the amount of tombstones created
---
Key: CASSANDRA-8880
URL: https://issues.apache.org/jira/browse/CASSANDRA-8880
Project: Cassandra
Issue Type: Improvement
Reporter: Michaël Figuière
Priority: Minor
Labels: metrics
Fix For: 2.1.4
Attachments: cassandra-2.1-8880.patch
AFAIK there's currently no way to monitor the amount of tombstones created on
a Cassandra node. CASSANDRA-6057 has made it possible for users to figure out
how many tombstones are scanned at read time, but in write mostly workloads,
it may not be possible to realize if some inappropriate queries are
generating too many tombstones.
Therefore the following additional metrics should be added:
* {{writtenCells}}: amount of cells that have been written
* {{writtenTombstoneCells}}: amount of tombstone cells that have been written
Alternatively these could be exposed as a single gauge such as
{{writtenTombstoneCellsRatio}}.
--
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[jira] [Updated] (CASSANDRA-8880) Add metrics to monitor the amount of tombstones created
[
https://issues.apache.org/jira/browse/CASSANDRA-8880?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Lyuben Todorov updated CASSANDRA-8880:
--
Attachment: cassandra-2.1-8880.patch
Add metrics to monitor the amount of tombstones created
---
Key: CASSANDRA-8880
URL: https://issues.apache.org/jira/browse/CASSANDRA-8880
Project: Cassandra
Issue Type: Improvement
Reporter: Michaël Figuière
Assignee: Lyuben Todorov
Priority: Minor
Labels: metrics
Fix For: 2.1.4
Attachments: cassandra-2.1-8880.patch
AFAIK there's currently no way to monitor the amount of tombstones created on
a Cassandra node. CASSANDRA-6057 has made it possible for users to figure out
how many tombstones are scanned at read time, but in write mostly workloads,
it may not be possible to realize if some inappropriate queries are
generating too many tombstones.
Therefore the following additional metrics should be added:
* {{writtenCells}}: amount of cells that have been written
* {{writtenTombstoneCells}}: amount of tombstone cells that have been written
Alternatively these could be exposed as a single gauge such as
{{writtenTombstoneCellsRatio}}.
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