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https://issues.apache.org/jira/browse/CASSANDRASC-79?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Doug Rohrer updated CASSANDRASC-79:
-----------------------------------
Authors: Doug Rohrer, Francisco Guerrero
Test and Documentation Plan: New integration tests covering
starting/stopping instances.
Status: Patch Available (was: Open)
> Sidecar should be able to load metadata even if the local instance is
> unavailable
> ---------------------------------------------------------------------------------
>
> Key: CASSANDRASC-79
> URL: https://issues.apache.org/jira/browse/CASSANDRASC-79
> Project: Sidecar for Apache Cassandra
> Issue Type: Improvement
> Components: Rest API
> Reporter: Doug Rohrer
> Assignee: Doug Rohrer
> Priority: Normal
> Labels: pull-request-available
>
> Today, the sidecar’s CassandraAdapter/CqlSessionProvider uses a load
> balancing policy that only allows connections to a single instance configured
> for one of the managed instances of Cassandra. However, this is both
> unnecessary and potentially harmful, as requests to that instance’s hostname
> will fail to retrieve information like keyspace/cluster metadata when that
> instance is unavailable, and will not receive any updates to metadata either,
> which can cause stale metadata to be used.
> Instead, the CqlSessionProvider should take a list of contact points and use
> them to connect to the whole cluster (or a subset of nodes) without the
> single-instance load balancing policy. Where it is necessary to query an
> individual instance (system tables, attempts to check the health of a
> particular instance) we can, instead, use the driver’s ability to direct
> queries to a specific host on a per-statement basis.
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