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https://issues.apache.org/jira/browse/SLING-3747?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carsten Ziegeler closed SLING-3747.
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> Provide a way to signal Jcr Installer to pause and resume scanning
> ------------------------------------------------------------------
>
> Key: SLING-3747
> URL: https://issues.apache.org/jira/browse/SLING-3747
> Project: Sling
> Issue Type: New Feature
> Components: Installer
> Reporter: Chetan Mehrotra
> Assignee: Chetan Mehrotra
> Fix For: JCR Installer 3.1.8
>
> Attachments: SLING-3747-1.patch, SLING-3747-2.patch, SLING-3747.patch
>
>
> Currently Sling Installer JCR Provider would listen for observation event and
> would perform a rescan every 500 msec upon receiving any observation event.
> This at times cause issue when large number of bundles get updated in
> repository say via installation of bug fixing content package. Further if
> same content package also updates the repository bundle then it causes issues
> as repository bundle might get updated midway while content package is still
> being deployed
> Based on [~fmeschbe] suggestion this can be done via introducing a signalling
> mechanism between component which installs package and JCR Installer. It
> would work something like this
> # JCR Installer would check if there is any node under
> {{/system/sling/installer/jcr/pauseInstallation}} as a signal to pause
> installation.
> # Package installer would create a child node under the above path before
> installing the package and remove it post installation
> This should also address the issue in cluster deployment
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