[
https://issues.apache.org/jira/browse/IMPALA-7283?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tim Armstrong updated IMPALA-7283:
----------------------------------
Description:
[~stiga-huang] suggested here
https://gerrit.cloudera.org/#/c/10744/11/be/src/service/client-request-state.cc@628
{quote}
What about sleep several seconds before the next retry like this?
for (int i = 0; i < 3; ++i, sleep(3))
Usually it will increase success rate if there're network issues or the target
server is stuck temporarily.
{quote}
This seems worth considering but I don't have the knowledge to really evaluate
it
This would likely involve:
* For KRPC, using the backoff logic in IMPALA-8143 for all RPCs, maybe doing
exponential backoff sometimes
* For thrift, adding backoff logic like this to the thrift version of
DoRpcWithRetry.
was:
[~stiga-huang] suggested here
https://gerrit.cloudera.org/#/c/10744/11/be/src/service/client-request-state.cc@628
{quote}
What about sleep several seconds before the next retry like this?
for (int i = 0; i < 3; ++i, sleep(3))
Usually it will increase success rate if there're network issues or the target
server is stuck temporarily.
{quote}
This seems worth considering but I don't have the knowledge to really evaluate
it
cc [~kwho] [~sailesh]
> Consider backing off before retrying RPC
> ----------------------------------------
>
> Key: IMPALA-7283
> URL: https://issues.apache.org/jira/browse/IMPALA-7283
> Project: IMPALA
> Issue Type: Improvement
> Components: Distributed Exec
> Reporter: Tim Armstrong
> Priority: Major
>
> [~stiga-huang] suggested here
> https://gerrit.cloudera.org/#/c/10744/11/be/src/service/client-request-state.cc@628
> {quote}
> What about sleep several seconds before the next retry like this?
> for (int i = 0; i < 3; ++i, sleep(3))
> Usually it will increase success rate if there're network issues or the
> target server is stuck temporarily.
> {quote}
> This seems worth considering but I don't have the knowledge to really
> evaluate it
> This would likely involve:
> * For KRPC, using the backoff logic in IMPALA-8143 for all RPCs, maybe doing
> exponential backoff sometimes
> * For thrift, adding backoff logic like this to the thrift version of
> DoRpcWithRetry.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-all-unsubscr...@impala.apache.org
For additional commands, e-mail: issues-all-h...@impala.apache.org
