[jira] [Updated] (CASSANDRA-12686) Communicate timeouts and other driver relevant options in SUPPORTED response or some other mechanism
[ https://issues.apache.org/jira/browse/CASSANDRA-12686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] C. Scott Andreas updated CASSANDRA-12686: - Component/s: Observability CQL > Communicate timeouts and other driver relevant options in SUPPORTED response > or some other mechanism > > > Key: CASSANDRA-12686 > URL: https://issues.apache.org/jira/browse/CASSANDRA-12686 > Project: Cassandra > Issue Type: Improvement > Components: CQL, Observability >Reporter: Andy Tolbert >Priority: Major > Labels: client-impacting > > It would be really useful if driver clients had a mechanism to understand > what the configured timeouts on the C* side are. > Ideally a driver should be configured in such a way that it's client timeout > is greater than the C* timeouts ({{write_request_timeout_in_ms}}, > {{read_request_timeout_in_ms}}, etc.) so its retry policy may make the > appropriate decision based on the kind of timeout received from cassandra. > This is why most driver clients have a client timeout of 12 seconds. If the > client knew the server timeouts, it could adjust its client timeout > accordingly. > At the moment, the only place I think where this could be communicated is > through a {{SUPPORTED}} message when the client sends an {{OPTIONS}} message, > but that could be viewed as awkward. Also consider that some clients use the > {{OPTIONS}} message as a form of heartbeat, so adding more to a {{SUPPORTED}} > message could add some (likely trivial) data on the wire between server and > client. > Alternatively, it could also be interesting if the client could configure the > timeout on the server end (with some ceiling set by C*). -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org
[jira] [Updated] (CASSANDRA-12686) Communicate timeouts and other driver relevant options in SUPPORTED response or some other mechanism
[ https://issues.apache.org/jira/browse/CASSANDRA-12686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Andy Tolbert updated CASSANDRA-12686: - Labels: client-impacting (was: ) > Communicate timeouts and other driver relevant options in SUPPORTED response > or some other mechanism > > > Key: CASSANDRA-12686 > URL: https://issues.apache.org/jira/browse/CASSANDRA-12686 > Project: Cassandra > Issue Type: Improvement >Reporter: Andy Tolbert > Labels: client-impacting > > It would be really useful if driver clients had a mechanism to understand > what the configured timeouts on the C* side are. > Ideally a driver should be configured in such a way that it's client timeout > is greater than the C* timeouts ({{write_request_timeout_in_ms}}, > {{read_request_timeout_in_ms}}, etc.) so its retry policy may make the > appropriate decision based on the kind of timeout received from cassandra. > This is why most driver clients have a client timeout of 12 seconds. If the > client knew the server timeouts, it could adjust its client timeout > accordingly. > At the moment, the only place I think where this could be communicated is > through a {{SUPPORTED}} message when the client sends an {{OPTIONS}} message, > but that could be viewed as awkward. Also consider that some clients use the > {{OPTIONS}} message as a form of heartbeat, so adding more to a {{SUPPORTED}} > message could add some (likely trivial) data on the wire between server and > client. > Alternatively, it could also be interesting if the client could configure the > timeout on the server end (with some ceiling set by C*). -- This message was sent by Atlassian JIRA (v6.3.4#6332)