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Posted to solr-dev@lucene.apache.org by "Bill Au (JIRA)" <ji...@apache.org> on 2010/02/04 16:06:29 UTC
[jira] Created: (SOLR-1755) race condition in snappuller
race condition in snappuller
----------------------------
Key: SOLR-1755
URL: https://issues.apache.org/jira/browse/SOLR-1755
Project: Solr
Issue Type: Bug
Affects Versions: 1.4
Reporter: Bill Au
Assignee: Bill Au
Priority: Minor
There is a slight race condition in snapinstaller within the time window between testing for the presence and creating the lock file. When the race condition is met there can be more than one instance of snapinstaller running.
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[jira] Updated: (SOLR-1755) race condition in snappuller
Posted by "Bill Au (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/SOLR-1755?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Bill Au updated SOLR-1755:
--------------------------
Attachment: SOLR-1755.patch
Since snapinstaller is a bash script. The attached patch uses the noclobber option to prevent the race condition.
> race condition in snappuller
> ----------------------------
>
> Key: SOLR-1755
> URL: https://issues.apache.org/jira/browse/SOLR-1755
> Project: Solr
> Issue Type: Bug
> Affects Versions: 1.4
> Reporter: Bill Au
> Assignee: Bill Au
> Priority: Minor
> Attachments: SOLR-1755.patch
>
>
> There is a slight race condition in snapinstaller within the time window between testing for the presence and creating the lock file. When the race condition is met there can be more than one instance of snapinstaller running.
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