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From "P. Taylor Goetz (JIRA)" <j...@apache.org>
Subject [jira] [Created] (STORM-214) Windows: storm.cmd does not properly handle multiple -c arguments
Date Wed, 05 Feb 2014 15:58:11 GMT
P. Taylor Goetz created STORM-214:
-------------------------------------

             Summary: Windows: storm.cmd does not properly handle multiple -c arguments
                 Key: STORM-214
                 URL: https://issues.apache.org/jira/browse/STORM-214
             Project: Apache Storm (Incubating)
          Issue Type: Bug
         Environment: Windows
            Reporter: P. Taylor Goetz


As reported to user@:

Begin forwarded message:

From: Spico Florin <spicoflorin@gmail.com>
Subject: Fwd: Rebalance topology throws java.lang.StringIndexOutOfBoundsException: String
index out of range: -1
Date: February 5, 2014 at 4:30:43 AM EST
To: "user@storm.incubator.apache.org" <user@storm.incubator.apache.org>
Reply-To: user@storm.incubator.apache.org


Hello!
In the mentioned version for Windows, the  rebalance command arguments should not be passed
as indicated in 

https://github.com/nathanmarz/storm/wiki/Understanding-the-parallelism-of-a-Storm-topology
storm rebalance mytopology -n 5 -e blue-spout=3 -e yellow-bolt=10

In order to get rid of the mentioned exception(java.lang.StringIndexOutOfBoundsException:)
you should use the command
 
storm rebalance WordCount -e "spout=3"

However, trying to rebalance more components (either spouts or bolts) will rebalance only
the latest component mentioned in the list. So, for example for example:

storm rebalance WordCount -e "spout=3" -e "count=5"
 the rebalance will be applied only for the "count" component not for the "spout".

So, in my opinion either the documentation should be updated or the rebalance.clj should be
changed in order to support rebalancing for multiple components.

I look forward for your opinions.
  Regards,
  Florin






---------- Forwarded message ----------
From: Spico Florin <spicoflorin@gmail.com>
Date: Tue, Feb 4, 2014 at 11:10 AM
Subject: Rebalance topology throws java.lang.StringIndexOutOfBoundsException: String index
out of range: -1
To: "user@storm.incubator.apache.org" <user@storm.incubator.apache.org>


Hello!
I'm using the Taylor Goetz's storm version pointed out by article 

http://ptgoetz.github.io/blog/2013/12/18/running-apache-storm-on-windows/

and located at:
https://github.com/ptgoetz/incubator-storm/tree/windows-test

I have succeeded to install everything on my computer (running windows 7, 64 bit). I have
also ran fine the indicated topology and my topology too. But when I'm trying to do a rebalancing
of my topology by re-configuring the number of spouts or bolt with the command  
  storm rebalance WordCount -e spout=3
I'm getting the exception:
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of
range: -1
        at java.lang.String.substring(String.java:1911)
        at backtype.storm.command.rebalance$parse_executor.invoke(rebalance.clj:24)
        at clojure.tools.cli$apply_specs.invoke(cli.clj:80)
        at clojure.tools.cli$cli.doInvoke(cli.clj:130)
        at clojure.lang.RestFn.invoke(RestFn.java:460)
        at backtype.storm.command.rebalance$_main.doInvoke(rebalance.clj:31)
        at clojure.lang.RestFn.applyTo(RestFn.java:137)
        at backtype.storm.command.rebalance.main(Unknown Source)

If I'm changing only the number of workers it works without any exceptions.

If someone of you have tested this version, can you please help me to get rid of it?
I'll look forward for your answers.

Thanks in advance.
  Regards,
  Florin 








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