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From "Daniel Spicar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CLEREZZA-606) A tool for monitoring file descriptors held open by CRIS
Date Fri, 15 Jul 2011 20:21:59 GMT

     [ https://issues.apache.org/jira/browse/CLEREZZA-606?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Daniel Spicar updated CLEREZZA-606:
-----------------------------------

    Attachment: ZZ-606-rdf.cris.monitoring-issue-20110715.diff

Initial Version.

The patch is to applied to the issues repository folder. It creates a new issue 'CLEREZZA-606'
with a new project 'rdf.cris.monitoring'.

This version is offering basic monitoring functionality.
- It can be configured trough Felix Config Admin/Web Console.
- Currently only supporting Linux Operating System.
- Only tested with patch from issue CLEREZZA-564 applied.
- A web resource displaying the statistics can be found at http://localhost:8080/admin/monitoring/cris/
- A threshold can be configured and a threshold url. When the Platform uses more than threshold
file descriptors, then a GET request on the threshold url is performed (allows to call optimize
via a jaxrs resource for example).
- Because GraphIndexer is not a service, you need to configure the bundle id (the number next
to the bundle that uses an instance of GraphIndexer that is displayed when you enter 'ps'
on the clerezza console.
- You also need to supply the path to the folder where the index lies. This path is relative
to the configured bundle's data folder.

> A tool for monitoring file descriptors held open by CRIS
> --------------------------------------------------------
>
>                 Key: CLEREZZA-606
>                 URL: https://issues.apache.org/jira/browse/CLEREZZA-606
>             Project: Clerezza
>          Issue Type: New Feature
>            Reporter: Daniel Spicar
>         Attachments: ZZ-606-rdf.cris.monitoring-issue-20110715.diff
>
>
> On UNIX systems CRIS can open many file descriptors which can lead to CRIS stopping to
work. A tool that monitors the file descriptors held by CRIS will help administrators and
developers to optimize and configure CRIS for their environment and use cases.

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