Viachaslau Tsikhanovich created CAMEL-12418:
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Summary: High CPU load on events watching
Key: CAMEL-12418
URL: https://issues.apache.org/jira/browse/CAMEL-12418
Project: Camel
Issue Type: Bug
Components: camel-consul
Affects Versions: 2.21.0
Reporter: Viachaslau Tsikhanovich
Camel-Consul library expects EventClient to block requests and [passes number
of seconds to block request to
EventClient|https://github.com/apache/camel/blob/camel-2.21.0/components/camel-consul/src/main/java/org/apache/camel/component/consul/endpoint/ConsulEventConsumer.java#L59].
However Event HTTP Endpoint [does not support Blocking
Queries|https://www.consul.io/api/event.html] and EventClient [ignores passed
queryOptions|https://github.com/rickfast/consul-client/blob/1.1.1/src/main/java/com/orbitz/consul/EventClient.java#L164].
This results in high CPU usage because ConsulEventConsumer constantly makes
requests to Consul without any delay or blocking.
Maybe some _Thread.sleep_ could be added to _EventWatcher.watch(EventClient
client)_ before _client.listEvents_ call or any other fix to introduce delay
between _listEvents_ requests.
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