Hi Arthi
Apache Stanbol is based on the Apache Sling launcher. Provided
configuration is stored under
stanbol/config
Files under this path are managed by the OSGI environment (osgi
configuration admin) and should not be changed (especially while
Stanbol is running)
You might also see your configuration(s) under
stanbol/fileinstall
Those files are synchronized (at least if you use the default Stanbol
config) with configurations done via the Configuration tab of the
Felix WebConsole (http://localhost:8080/system/console/configMgr).
This means that files in this directory can be changed (even at
runtime). This is based on the Sling installer
(http://sling.apache.org/site/osgi-installer.html).
In addition some Stanbol components do use
stanbol/datafiles
to read binary configuration files (e.g. solrindex.zip files, OpenNLP
models ....).
On Mon, Jul 15, 2013 at 9:20 AM, <arthi.ven...@wipro.com> wrote:
> Hi,
> Noticed a very strange behavior. If Stanbol is restarted from the web
> console on start up I saw following configured items completely disappearing.
>
You mean via the "System Information" tab of the Felix WebConsole?
When I try to do this, the OSGI environment terminates with a NPE at
Exception in thread "Sling Notifier" java.lang.NullPointerException
at org.apache.sling.launchpad.app.Main.startSling(Main.java:407)
at org.apache.sling.launchpad.app.Main.access$300(Main.java:50)
at org.apache.sling.launchpad.app.Main$Notified.updated(Main.java:845)
at
org.apache.sling.launchpad.base.impl.SlingFelix$Notifier.run(SlingFelix.java:123)
at java.lang.Thread.run(Thread.java:680)
Never noticed this before, because I have not used this feature of the
Felix Webconsole.
> 1. Managed Site
>
> 2. Entity Hub Linking
>
> 3. Weighted chain
>
> How do we stored configured items between reboots?
>
This is all done by the default OSGI functionality to handle
configurations. See first part of the mail for details.
> Do we need to manually backup some files to ensure this does not happen. If
> yes what are the files ?
>
No you do not need to backup the configuration. Even after an JVM
crash there should not be any "missing" configurations
> What is the work around for this issue.?
>
I am not aware of an issue like that. Typically if services are not
available it is because of Exceptions during the activation of those
services. E.g. a ManagedSite will not active if the SolrYard for the
Site can not activate. The SolrYard might not be active because the
SolrCore with the data is not active. So if expected services are not
available you should usually find some related exceptions in the Log
files.
You can also check the "stanbol/config" and "stanbol/fileinstall"
folders if the expected configuration files are present.
best
Rupert
> Note : All the items were configured from the -
> http://localhost:8080/system/console/configMgr
>
> Thanks and Rgds,
> Arthi
>
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