[jira] [Updated] (CASSANDRA-13643) converting expired ttl cells to tombstones causing unnecessary digest mismatches
[
https://issues.apache.org/jira/browse/CASSANDRA-13643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Stefan Podkowinski updated CASSANDRA-13643:
---
Fix Version/s: 3.11.1
3.0.15
> converting expired ttl cells to tombstones causing unnecessary digest
> mismatches
>
>
> Key: CASSANDRA-13643
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13643
> Project: Cassandra
> Issue Type: Bug
>Reporter: Blake Eggleston
>Assignee: Blake Eggleston
>Priority: Minor
> Fix For: 3.0.15, 3.11.1, 4.0
>
>
> In
> [{{AbstractCell#purge}}|https://github.com/apache/cassandra/blob/26e025804c6777a0d124dbc257747cba85b18f37/src/java/org/apache/cassandra/db/rows/AbstractCell.java#L77]
> , we convert expired ttl'd cells to tombstones, and set the the local
> deletion time to the cell's expiration time, less the ttl time. Depending on
> the timing of the purge, this can cause purge to generate tombstones that are
> otherwise purgeable. If compaction for a row with ttls isn't at the same
> state between replicas, this will then cause digest mismatches between
> logically identical rows, leading to unnecessary repair streaming and read
> repairs.
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[jira] [Updated] (CASSANDRA-13643) converting expired ttl cells to tombstones causing unnecessary digest mismatches
[
https://issues.apache.org/jira/browse/CASSANDRA-13643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jeff Jirsa updated CASSANDRA-13643:
---
Fix Version/s: 4.0
> converting expired ttl cells to tombstones causing unnecessary digest
> mismatches
>
>
> Key: CASSANDRA-13643
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13643
> Project: Cassandra
> Issue Type: Bug
>Reporter: Blake Eggleston
>Assignee: Blake Eggleston
>Priority: Minor
> Fix For: 4.0
>
>
> In
> [{{AbstractCell#purge}}|https://github.com/apache/cassandra/blob/26e025804c6777a0d124dbc257747cba85b18f37/src/java/org/apache/cassandra/db/rows/AbstractCell.java#L77]
> , we convert expired ttl'd cells to tombstones, and set the the local
> deletion time to the cell's expiration time, less the ttl time. Depending on
> the timing of the purge, this can cause purge to generate tombstones that are
> otherwise purgeable. If compaction for a row with ttls isn't at the same
> state between replicas, this will then cause digest mismatches between
> logically identical rows, leading to unnecessary repair streaming and read
> repairs.
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[jira] [Updated] (CASSANDRA-13643) converting expired ttl cells to tombstones causing unnecessary digest mismatches
[
https://issues.apache.org/jira/browse/CASSANDRA-13643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Blake Eggleston updated CASSANDRA-13643:
Resolution: Fixed
Reviewer: Sylvain Lebresne
Status: Resolved (was: Ready to Commit)
Committed as {{a033f51651e1a990adca795f92d683999c474151}}
> converting expired ttl cells to tombstones causing unnecessary digest
> mismatches
>
>
> Key: CASSANDRA-13643
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13643
> Project: Cassandra
> Issue Type: Bug
>Reporter: Blake Eggleston
>Assignee: Blake Eggleston
>Priority: Minor
>
> In
> [{{AbstractCell#purge}}|https://github.com/apache/cassandra/blob/26e025804c6777a0d124dbc257747cba85b18f37/src/java/org/apache/cassandra/db/rows/AbstractCell.java#L77]
> , we convert expired ttl'd cells to tombstones, and set the the local
> deletion time to the cell's expiration time, less the ttl time. Depending on
> the timing of the purge, this can cause purge to generate tombstones that are
> otherwise purgeable. If compaction for a row with ttls isn't at the same
> state between replicas, this will then cause digest mismatches between
> logically identical rows, leading to unnecessary repair streaming and read
> repairs.
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[jira] [Updated] (CASSANDRA-13643) converting expired ttl cells to tombstones causing unnecessary digest mismatches
[
https://issues.apache.org/jira/browse/CASSANDRA-13643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Blake Eggleston updated CASSANDRA-13643:
Status: Ready to Commit (was: Patch Available)
> converting expired ttl cells to tombstones causing unnecessary digest
> mismatches
>
>
> Key: CASSANDRA-13643
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13643
> Project: Cassandra
> Issue Type: Bug
>Reporter: Blake Eggleston
>Assignee: Blake Eggleston
>Priority: Minor
>
> In
> [{{AbstractCell#purge}}|https://github.com/apache/cassandra/blob/26e025804c6777a0d124dbc257747cba85b18f37/src/java/org/apache/cassandra/db/rows/AbstractCell.java#L77]
> , we convert expired ttl'd cells to tombstones, and set the the local
> deletion time to the cell's expiration time, less the ttl time. Depending on
> the timing of the purge, this can cause purge to generate tombstones that are
> otherwise purgeable. If compaction for a row with ttls isn't at the same
> state between replicas, this will then cause digest mismatches between
> logically identical rows, leading to unnecessary repair streaming and read
> repairs.
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[jira] [Updated] (CASSANDRA-13643) converting expired ttl cells to tombstones causing unnecessary digest mismatches
[
https://issues.apache.org/jira/browse/CASSANDRA-13643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Blake Eggleston updated CASSANDRA-13643:
Status: Patch Available (was: Open)
Patch here: https://github.com/bdeggleston/cassandra/tree/13643
Could you take a look at this [~slebresne]? I've just called purge on the
created tombstone, which I wouldn't think would cause any problems.
> converting expired ttl cells to tombstones causing unnecessary digest
> mismatches
>
>
> Key: CASSANDRA-13643
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13643
> Project: Cassandra
> Issue Type: Bug
>Reporter: Blake Eggleston
>Assignee: Blake Eggleston
>Priority: Minor
>
> In
> [{{AbstractCell#purge}}|https://github.com/apache/cassandra/blob/26e025804c6777a0d124dbc257747cba85b18f37/src/java/org/apache/cassandra/db/rows/AbstractCell.java#L77]
> , we convert expired ttl'd cells to tombstones, and set the the local
> deletion time to the cell's expiration time, less the ttl time. Depending on
> the timing of the purge, this can cause purge to generate tombstones that are
> otherwise purgeable. If compaction for a row with ttls isn't at the same
> state between replicas, this will then cause digest mismatches between
> logically identical rows, leading to unnecessary repair streaming and read
> repairs.
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