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https://issues.apache.org/jira/browse/STORM-861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14581045#comment-14581045
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Jungtaek Lim edited comment on STORM-861 at 6/10/15 8:40 PM:
-------------------------------------------------------------
Yeah, you're right. I couldn't think about testing it to decrease parallelism.
Below operation changes components' parallelism successfully. (decrease
parallelism by 1)
{noformat}
curl -X POST -H "Content-Type: application/json" -d '{"rebalanceOptions":
{"numWorkers": 2, "executors": {"wordGenerator": 1, "counter": 1,
"intermediateRanker": 1}}}'
http://localhost:8080/api/v1/topology/production-topology-4-1433968516/rebalance/50
{noformat}
Sorry for not testing well. Not an issue.
was (Author: kabhwan):
Yeah, you're right. I couldn't think about testing it to decrease parallelism.
Below operation changes components' parallelism successfully.
{noformat}
curl -X POST -H "Content-Type: application/json" -d '{"rebalanceOptions":
{"numWorkers": 2, "executors": {"wordGenerator": 1, "counter": 1,
"intermediateRanker": 1}}}'
http://localhost:8080/api/v1/topology/production-topology-4-1433968516/rebalance/50
{noformat}
Sorry for not testing well. Not an issue.
> Rebalance REST API : "executors" in rebalanceOptions doesn't seem to be
> reflected while rebalancing
> ---------------------------------------------------------------------------------------------------
>
> Key: STORM-861
> URL: https://issues.apache.org/jira/browse/STORM-861
> Project: Apache Storm
> Issue Type: Bug
> Reporter: Jungtaek Lim
> Priority: Minor
>
> There's one topology in cluster, and it is storm.starter.RollingTopWords from
> storm-starter.
> https://github.com/apache/storm/blob/master/examples/storm-starter/src/jvm/storm/starter/RollingTopWords.java
> I just ran rebalance via REST API, and found something is not working
> properly.
> {noformat}
> curl -X POST -H "Content-Type: application/json" -d '{"rebalanceOptions":
> {"numWorkers": 2, "executors": {"wordGenerator": 10, "counter": 7,
> "intermediateRanker": 10}}}'
> http://localhost:8080/api/v1/topology/production-topology-4-1433927082/rebalance/50
> {noformat}
> It changes number of workers to 2, but it doesn't change any components'
> executor count.
> Sample of rebalance REST API from document is here.
> {noformat}
> curl -i -b ~/cookiejar.txt -c ~/cookiejar.txt -X POST
> -H "Content-Type: application/json"
> -d '{"rebalanceOptions": {"numWorkers": 2, "executors": { "spout" : "5",
> "split": 7, "count": 5 }}, "callback":"foo"}'
> http://localhost:8080/api/v1/topology/wordcount-1-1420308665/rebalance/0
> {noformat}
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