[
https://issues.apache.org/jira/browse/FLINK-9878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16659377#comment-16659377
]
ASF GitHub Bot commented on FLINK-9878:
---------------------------------------
NicoK commented on a change in pull request #6838: [FLINK-9878][network][ssl]
add more low-level ssl options
URL: https://github.com/apache/flink/pull/6838#discussion_r226988384
##########
File path:
flink-runtime-web/src/main/java/org/apache/flink/runtime/webmonitor/history/HistoryServer.java
##########
@@ -88,6 +90,7 @@
private final HistoryServerArchiveFetcher archiveFetcher;
+ @Nullable
Review comment:
not changing that one with this PR, sorry
FYI: my IntelliJ is actually giving me a warning using `Optional` as a field
or a method parameter.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
> IO worker threads BLOCKED on SSL Session Cache while CMS full gc
> ----------------------------------------------------------------
>
> Key: FLINK-9878
> URL: https://issues.apache.org/jira/browse/FLINK-9878
> Project: Flink
> Issue Type: Bug
> Components: Network
> Affects Versions: 1.5.0, 1.5.1, 1.6.0
> Reporter: Nico Kruber
> Assignee: Nico Kruber
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.5.4, 1.6.3, 1.7.0
>
>
> According to https://github.com/netty/netty/issues/832, there is a JDK issue
> during garbage collection when the SSL session cache is not limited. We
> should allow the user to configure this and further (advanced) SSL parameters
> for fine-tuning to fix this and similar issues. In particular, the following
> parameters should be configurable:
> - SSL session cache size
> - SSL session timeout
> - SSL handshake timeout
> - SSL close notify flush timeout
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
