WebMonitor | main purpose of the WebMonitor application | Monitoring library
kandi X-RAY | WebMonitor Summary
kandi X-RAY | WebMonitor Summary
The main purpose of the WebMonitor application, is to be able to have an easy and simpel way to monitor your server/host through HTTP. You run the application from your desktop and get notifications if on of you monitors act abnormal. This can mean a ruled has failed, ex. you have set the monitor of CodePlex.com to have an MaxResponse time to 500 ms. If the reponse time exceeds this value, an balloonTip will show you that something is up.
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Trending Discussions on WebMonitor
QUESTION
I'm trying to understand if behaviour of the flink jobmanager during zookeeper upgrade is expected or not.
I'm running flink 1.11.2 in kubernetes, with zookeeper server 3.5.4-beta. While I'm doing zookeeper upgrade, there is a 20 seconds zookeeper downtime. I'd expect to either flink job to restart or few warnings in the logs during those 20 seconds. Instead, I see whole flink JVM crash ( and later the pod restart).
I expected for flink to internally retry zookeeper requests, so I'm surprised it crashes. Is this expected, or is it a bug?
From the logs
...ANSWER
Answered 2021-Feb-11 at 17:20If a zookeeper quorum is maintained during the upgrade, then the Flink job manager should not be impacted. Otherwise it's not surprising that the job manager would fail.
Normally you would upgrade the zookeeper followers first, one by one, and then upgrade the leader last. Verify that the quorum has been reestablished before taking down another node.
QUESTION
There is nothing problem with standalone mode. But yarn mode, it can't work. I add the hadoop jar in flink classpath(flink/lib).And I see some discuss on jira, like
It was solved in flink 1.2?
flink version:1.9.1
hadoop/yarn version:2.6.0
elasticsearch version:6.8.1
maven dependencies
...ANSWER
Answered 2020-May-22 at 03:20I use Flink Elasticsearch connector
to solve the problem.
I did it by implement RichSinkFunction yesterday.
QUESTION
I'm trying to set-up hazelcast and the management center for developement using docker. Unfortunately the management center does not find the hazelcast node.
I startet hazelcast and the management center on my machine as instructed here https://hub.docker.com/r/hazelcast/hazelcast
I do geht the following message when I enter the management center:
I tried to enter the missing information in the form like this:
but I don't find the correct values to get this working. Any ideas whats wrong?
I used this commands to start docker:
...ANSWER
Answered 2020-Apr-29 at 07:26You use the commands for Hazelcast (and Management Center) version 4.0
, but you actually run images 3.12.5
. The mechanism how Management Center is connected has changed. So you need to either use the most recent version or apply the instructions for 3.12.5, like this:
QUESTION
I am commit flink(v1.10.0) job to my cluster, but shows this error:
...ANSWER
Answered 2020-Apr-05 at 08:22if you want the jar contains to dist.jar file,you should write dependencies like this:
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