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Posted to issues@flink.apache.org by "Yun Tang (Jira)" <ji...@apache.org> on 2020/01/21 05:25:00 UTC
[jira] [Comment Edited] (FLINK-15692) Enable limiting RocksDB
memory consumption by default
[ https://issues.apache.org/jira/browse/FLINK-15692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17019859#comment-17019859 ]
Yun Tang edited comment on FLINK-15692 at 1/21/20 5:24 AM:
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[~ptmagic] please hold on for a moment. As the main contributor of limiting RocksDB memory usage, I know this is not a issue which would only change a default value. We should also tell users some information about how to tuning and how to add extra buffer space. Even though we do not add related documentation in the end within the PR for this issue, we should also take them into consideration.
was (Author: yunta):
[~ptmagic] please hold on a moment. As the main contributor of limiting RocksDB memory usage, I know this is not a issue which would only change a default value. We should also tell users some information about how to tuning and how to add extra buffer space. Even though we do not add related documentation in the end within the PR for this issue, we should also take them into consideration.
> Enable limiting RocksDB memory consumption by default
> -----------------------------------------------------
>
> Key: FLINK-15692
> URL: https://issues.apache.org/jira/browse/FLINK-15692
> Project: Flink
> Issue Type: Task
> Components: Runtime / State Backends
> Affects Versions: 1.10.0
> Reporter: Till Rohrmann
> Priority: Blocker
> Fix For: 1.10.0
>
>
> Enable limiting RocksDB memory consumption by default. This means to change the default value of {{state.backend.rocksdb.memory.managed}} to {{true}}. This will change Flink's default behaviour for many users but I believe the benefits of a much more predictable memory behaviour of Flink will outweigh the downside of having fewer memory available.
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