[
https://issues.apache.org/jira/browse/FLINK-32191?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
dizhou cao updated FLINK-32191:
-------------------------------
Description: We encountered a case in our production environment where
netty client was unable to send data downstream due to an abnormality in the
switch link. However, client can only detect the abnormality after RTO timeout
retransmission failure, which takes about 15 minutes in our production
environment. This may result in a 15-minute job unavailability. We hope to
perform failover and reschedule job more quickly. Flink has already enabled
keepalive, but the default keepalive idle time is 2 hours. We can adjust the
timeout of TCP keepalive by configuring TCP_KEEPIDLE, TCP_KEEPINTERVAL, and
TCP_KEEPCOUNT. These configurations are already supported at the Netty. (was:
We encountered a case in our production environment where upstream was unable
to send data downstream due to an abnormality in the switch link. However,
upstream can only detect the abnormality after RTO timeout retransmission
failure, which takes about 15 minutes in our production environment. This may
result in a 15-minute job unavailability. We hope to perform failover and
reschedule job more quickly. Flink has already enabled keepalive, but the
default keepalive idle time is 2 hours. We can adjust the timeout of TCP
keepalive by configuring TCP_KEEPIDLE, TCP_KEEPINTERVAL, and TCP_KEEPCOUNT.
These configurations are already supported at the Netty.)
> Support for configuring keepalive related parameters.
> -----------------------------------------------------
>
> Key: FLINK-32191
> URL: https://issues.apache.org/jira/browse/FLINK-32191
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Network
> Reporter: dizhou cao
> Priority: Minor
>
> We encountered a case in our production environment where netty client was
> unable to send data downstream due to an abnormality in the switch link.
> However, client can only detect the abnormality after RTO timeout
> retransmission failure, which takes about 15 minutes in our production
> environment. This may result in a 15-minute job unavailability. We hope to
> perform failover and reschedule job more quickly. Flink has already enabled
> keepalive, but the default keepalive idle time is 2 hours. We can adjust the
> timeout of TCP keepalive by configuring TCP_KEEPIDLE, TCP_KEEPINTERVAL, and
> TCP_KEEPCOUNT. These configurations are already supported at the Netty.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
