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https://issues.apache.org/jira/browse/WHIRR-363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13084595#comment-13084595
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Adrian Cole commented on WHIRR-363:
-----------------------------------
tested with hbase and note no redundant contexts are created:
2011-08-13 12:36:57,374 INFO
[org.apache.whirr.service.hbase.integration.HBaseServiceController] (main)
Starting up cluster...
2011-08-13 12:37:15,616 INFO [org.apache.whirr.service.ComputeCache] (main)
created new ComputeServiceContext [id=aws-ec2,
endpoint=https://ec2.us-east-1.amazonaws.com, apiVersion=2010-06-15,
identity=067PW7Z9P0FNH7JDPE82, iso3166Codes=[US-VA, US-CA, IE, SG, JP-13]]
2011-08-13 12:37:15,638 INFO [org.apache.whirr.actions.BootstrapClusterAction]
(main) Bootstrapping cluster
--snip--
> ComputeCache redundantly creates ComputeServiceContexts
> -------------------------------------------------------
>
> Key: WHIRR-363
> URL: https://issues.apache.org/jira/browse/WHIRR-363
> Project: Whirr
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Adrian Cole
> Assignee: Adrian Cole
> Fix For: 0.6.0
>
> Attachments: ComputeCache.java
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> Previously, ComputeCache used a stringified Key to ensure we don't create
> another ComputeService for the same provider. At some point, Key was
> modified to use both a string and a commons configuration object. Since
> commons configuration doesn't implement hashCode in a predictable way, the
> ComputeCache creates a new ComputeServiceContext each time it is used. Since
> we don't log or test this, it was easy to miss.
> Adding a simple log statement inside ComputeCache shows this:
> 2011-08-13 12:29:22,532 INFO
> [org.apache.whirr.service.hbase.integration.HBaseServiceController] (main)
> Starting up cluster...
> 2011-08-13 12:29:37,760 INFO [org.apache.whirr.service.ComputeCache] (main)
> created new ComputeServiceContext [id=aws-ec2,
> endpoint=https://ec2.us-east-1.amazonaws.com, apiVersion=2010-06-15,
> identity=067PW7Z9P0FNH7JDPE82, iso3166Codes=[US-VA, US-CA, IE, SG, JP-13]]
> 2011-08-13 12:29:46,115 INFO [org.apache.whirr.service.ComputeCache] (main)
> created new ComputeServiceContext [id=aws-ec2,
> endpoint=https://ec2.us-east-1.amazonaws.com, apiVersion=2010-06-15,
> identity=067PW7Z9P0FNH7JDPE82, iso3166Codes=[US-VA, US-CA, IE, SG, JP-13]]
> 2011-08-13 12:29:46,118 INFO
> [org.apache.whirr.actions.BootstrapClusterAction] (main) Bootstrapping cluster
> --snip--
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