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https://issues.apache.org/jira/browse/CASSANDRASC-86?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yifan Cai updated CASSANDRASC-86:
---------------------------------
Reviewers: Yifan Cai
Status: Review In Progress (was: Patch Available)
> Startup Validation Failures when Checking Sidecar Connectivity
> --------------------------------------------------------------
>
> Key: CASSANDRASC-86
> URL: https://issues.apache.org/jira/browse/CASSANDRASC-86
> Project: Sidecar for Apache Cassandra
> Issue Type: Improvement
> Components: Configuration
> Reporter: Yuriy Semchyshyn
> Assignee: Yuriy Semchyshyn
> Priority: Normal
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> We have experienced repeated startup validation failures caused by Sidecar
> health checks for some jobs with a large number of Spark executors.
> These failures are likely caused by the thundering herd problem, and have
> been so far worked around by disabling startup validations altogether.
> In order to prevent them going forward, a random delay needs to be added
> between retries of health checks in Sidecar client.
> It is also worth increasing the overall timeout for Sidecar health checks
> from current 30 seconds to 60 seconds.
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