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https://issues.apache.org/jira/browse/CASSSIDECAR-232?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Francisco Guerrero updated CASSSIDECAR-232:
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Bug Category: Parent values: Correctness(12982)Level 1 values:
Consistency(12989)
Complexity: Normal
Discovered By: Adhoc Test
Severity: Normal
Status: Open (was: Triage Needed)
> Enhance the Cluster Lease Claim task feature
> --------------------------------------------
>
> Key: CASSSIDECAR-232
> URL: https://issues.apache.org/jira/browse/CASSSIDECAR-232
> Project: Sidecar for Apache Cassandra
> Issue Type: Bug
> Components: Configuration, Rest API
> Reporter: Francisco Guerrero
> Assignee: Francisco Guerrero
> Priority: Major
>
> I would like to propose the following enhancements for the Cluster Lease
> Claim feature in Sidecar:
> - Handle IllegalArgumentException thrown when resultSet doesn't contain owner
> information. This is happening seldom times but it is noticeable. The source
> of the issue seems to indicate an issue in the driver or Cassandra codebase.
> I am able to reproduce the issue by running Sidecar locally for a long time.
> However, there's no good way to reproduce it in a test.
> - Better defaults for cluster lease task: Reduce the cluster lease task
> execution frequency to reduce the potential for CAS contention on the
> sidecar_internal.cluster_lease_v1 table in Cassandra.
> - Introduce randomized delay when scheduling ClusterLeaseClaimTask: to reduce
> potential races when all instances are trying to acquire the lease at the
> same time
> - Add new strategy to select the number of participants for the cluster
> lease: This is to prevent too many participants trying to acquire the lease
> for clusters with user keyspaces that are highly replicated.
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