[jira] [Updated] (CASSANDRA-9061) Add backoff and recovery to cqlsh COPY FROM when write timeouts occur

["Carl Yeksigian (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-9061?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Carl Yeksigian updated CASSANDRA-9061:
--------------------------------------
    Attachment: 9061-2.1.txt

Adds retries and sleeping when we have timed out statements.

Since we want to retry the statements that have timed out, we keep around all of the in-flight query messages to retry on time out. If we have a success, we just drop those messages altogether.

Also, need to be careful in the case where in-flight queries try to replace previously used stream ids, so it tries to reap the successful queries first, then will retry the timed out ones.

> Add backoff and recovery to cqlsh COPY FROM when write timeouts occur
> ---------------------------------------------------------------------
>
>                 Key: CASSANDRA-9061
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9061
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>            Reporter: Tyler Hobbs
>            Assignee: Carl Yeksigian
>            Priority: Minor
>              Labels: cqlsh
>             Fix For: 2.1.5
>
>         Attachments: 9061-2.1.txt
>
>
> Previous versions of COPY FROM didn't handle write timeouts because it was rarely fast enough for that to matter.  Now that performance has improved, write timeouts are more likely to occur.  We should handle these by backing off and retrying the operation.



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