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https://issues.apache.org/jira/browse/CASSANDRA-19500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Francisco Guerrero updated CASSANDRA-19500:
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Description:
When bumping the Sidecar version used in Analytics, an issue surfaced in the
Analytics implementation of XXHash32 where we cast the hash value to long, and
the negative sign is forwarded causing the incorrect hash value to be returned.
is not masked and this causes the negative sign to be forwarded. Other
implementations (for example commons-codec) mask the hash value correctly.
was:When bumping the Sidecar version used in Analytics, an issue surfaced in
the LZ4 implementation of XXHash32 where the hash value is not masked and this
causes the negative sign to be forwarded. Other implementations (for example
commons-codec) mask the hash value correctly.
> [Analytics] Fix XXHash32Digest value
> ------------------------------------
>
> Key: CASSANDRA-19500
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19500
> Project: Cassandra
> Issue Type: Bug
> Components: Analytics Library
> Reporter: Francisco Guerrero
> Assignee: Francisco Guerrero
> Priority: Normal
> Time Spent: 40m
> Remaining Estimate: 0h
>
> When bumping the Sidecar version used in Analytics, an issue surfaced in the
> Analytics implementation of XXHash32 where we cast the hash value to long,
> and the negative sign is forwarded causing the incorrect hash value to be
> returned.
> is not masked and this causes the negative sign to be forwarded. Other
> implementations (for example commons-codec) mask the hash value correctly.
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