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https://issues.apache.org/jira/browse/NIFI-3609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15992628#comment-15992628
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ASF GitHub Bot commented on NIFI-3609:
--------------------------------------
Github user ijokarumawak commented on a diff in the pull request:
https://github.com/apache/nifi/pull/1597#discussion_r114280792
--- Diff:
nifi-nar-bundles/nifi-websocket-bundle/nifi-websocket-services-jetty/src/main/java/org/apache/nifi/websocket/jetty/JettyWebSocketClient.java
---
@@ -81,6 +87,16 @@
.defaultValue("3 sec")
.build();
+ public static final PropertyDescriptor SESSION_MAINTENANCE_INTERVAL =
new PropertyDescriptor.Builder()
+ .name("session-maintenance-interval")
+ .displayName("Session Maintenance Interval")
+ .description("The interval between session maintenance
activities.")
+ .required(true)
+ .expressionLanguageSupported(true)
+ .addValidator(StandardValidators.TIME_PERIOD_VALIDATOR)
+ .defaultValue("10 sec")
--- End diff --
The CONNECTION_TIMEOUT is a timeout for the initial connection attempt and
idle connection timeout is different (IIRC 5 min by default and not
configurable from controller ATM, probably we should it configurable though).
The maintenance does not take any effect before a connection is established.
> ConnectWebSocket should be able to reconnect automatically
> ----------------------------------------------------------
>
> Key: NIFI-3609
> URL: https://issues.apache.org/jira/browse/NIFI-3609
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 1.1.0
> Reporter: Koji Kawamura
> Assignee: Koji Kawamura
>
> WebSocket connection can be extended by trigger PutWebSocket periodically
> (typically with empty message), but it doesn't help when server goes down.
> Currently if a server restarted, ConnectWebSocket has to be restarted
> manually to establish new connection.
> Ideally, this situation should be recovered automatically. If existing
> session ids can be reused, it'd be even better as it recovers transparently.
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