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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2020/12/16 02:31:53 UTC
[GitHub] [shardingsphere-elasticjob] kaihekaihe opened a new issue #1777: Feature failover works after zk session timeout，How to decrease consuming time of the process。
kaihekaihe opened a new issue #1777:
URL: https://github.com/apache/shardingsphere-elasticjob/issues/1777
I know decreasing zk session timeout can work.
Decreasing the inteval of reconcile service do not work, because it also depends on the zk session timeout. Am i right?
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[GitHub] [shardingsphere-elasticjob] TeslaCN closed issue #1777: Feature failover works after zk session timeout，How to decrease consuming time of the process。
Posted by GitBox <gi...@apache.org>.
TeslaCN closed issue #1777:
URL: https://github.com/apache/shardingsphere-elasticjob/issues/1777
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[GitHub] [shardingsphere-elasticjob] kaihekaihe commented on issue #1777: Feature failover works after zk session timeout，How to decrease consuming time of the process。
Posted by GitBox <gi...@apache.org>.
kaihekaihe commented on issue #1777:
URL: https://github.com/apache/shardingsphere-elasticjob/issues/1777#issuecomment-747169117
According to the code.shards belongs to offline servers can only be found after zk session timeout.
If server is offline,but temprary node does not disappear,ReconcileService can not find the offline server.
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[GitHub] [shardingsphere-elasticjob] TeslaCN commented on issue #1777: Feature failover works after zk session timeout，How to decrease consuming time of the process。
Posted by GitBox <gi...@apache.org>.
TeslaCN commented on issue #1777:
URL: https://github.com/apache/shardingsphere-elasticjob/issues/1777#issuecomment-745739856
`ReconcileService` works on situation that doesn't need sharding but some shards belongs to offline servers. The probability of that situation is very small.
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[GitHub] [shardingsphere-elasticjob] kaihekaihe commented on issue #1777: Feature failover works after zk session timeout，How to decrease consuming time of the process。
Posted by GitBox <gi...@apache.org>.
kaihekaihe commented on issue #1777:
URL: https://github.com/apache/shardingsphere-elasticjob/issues/1777#issuecomment-785532596
@TeslaCN
Adding shutdown hook to delete the temprary instance node immediately，other executors will be notified more quickly which does not rely on session timeout
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[GitHub] [shardingsphere-elasticjob] TeslaCN commented on issue #1777: Feature failover works after zk session timeout，How to decrease consuming time of the process。
Posted by GitBox <gi...@apache.org>.
TeslaCN commented on issue #1777:
URL: https://github.com/apache/shardingsphere-elasticjob/issues/1777#issuecomment-747172722
I don't think `ReconcileService` is used for this situation. Normally, when server offline, listener will be aware of offline event and set reshard flag. `ReconcileService` works in extreme cases.
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[GitHub] [shardingsphere-elasticjob] kaihekaihe edited a comment on issue #1777: Feature failover works after zk session timeout，How to decrease consuming time of the process。
Posted by GitBox <gi...@apache.org>.
kaihekaihe edited a comment on issue #1777:
URL: https://github.com/apache/shardingsphere-elasticjob/issues/1777#issuecomment-785532596
@TeslaCN
I have one suggestion.
Adding shutdown hook to delete the temprary instance node immediately，other executors will be notified more quickly which does not rely on session timeout
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