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https://issues.apache.org/jira/browse/AMBARI-6991?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14135521#comment-14135521
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Dmitry Lysnichenko commented on AMBARI-6991:
--------------------------------------------
@jimbobhickville, I think the issue has been resolved by AMBARI-7317. Now
Update Nagios operation is exclusive by design. I mean that it executes without
any parallelization and can not overlap with any other requests. So now you
have not to poll and wait until it completes, you may issue next requests
immediately and they will be executed afterwards.
> Setting maintenance mode should return request information
> ----------------------------------------------------------
>
> Key: AMBARI-6991
> URL: https://issues.apache.org/jira/browse/AMBARI-6991
> Project: Ambari
> Issue Type: Bug
> Affects Versions: 1.6.1
> Reporter: Greg Hill
> Assignee: Dmitry Lysnichenko
> Fix For: 1.7.0
>
>
> Currently when you set maintenance mode, it spawns an asynchronous operation
> to update nagios, but it does not return the request information to the
> client. The client needs an easy way to poll that request to know when it
> has completed.
> {noformat}
> PUT http://c6401.ambari.apache.org:8080/api/v1/clusters/testcluster/hosts
> {"RequestInfo": {"query": "Hosts/host_name.in(c6404.ambari.apache.org)",
> "context": "Start Maintenance Mode"}, "Body": {"Hosts": {"maintenance_state":
> "ON"}}}
> {noformat}
> Response is a 200 with an empty response body.
> Alternatively:
> {noformat}
> PUT
> http://c6401.ambari.apache.org:8080/api/v1/clusters/testcluster/hosts/c6404.ambari.apache.org/host_components?fields=HostRoles/state
> {"RequestInfo": {"context": "Start Maintenance Mode"}, "Body": {"HostRoles":
> {"maintenance_state": "ON"}}}
> {noformat}
> Same response. 200 OK, no body.
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