All,

As part of Tika-1302/TIKA-1330,  I'm looking into exception handling in 
tika-server.  Specifically, I'd like to add a TikaServerDaemon that starts Tika 
server in a separate process (not thread) and can restart it when necessary.  
This is somewhat based on an idea from William Palmer 
(http://www.openplanetsfoundation.org/blogs/2014-03-21-tika-ride-characterising-web-content-nanite).
   With a daemon/watcher/restarter in place,   

1) If a parser causes an OOM Exception or any type of Error , should we shut 
the server down?

2) Are there other exceptions that are serious enough to warrant shutting down 
a server?

3) If X number of parsers hang for longer than Y millis, should we shut the 
server down?

I won't make any changes until after 1.6 is released, and the default behaviors 
will all remain in place, but I wanted to get feedback from the community to 
make sure that I'm on a track that makes sense.

Thank you.

       Best,

             Tim


-----Original Message-----
From: Sergey Beryozkin [mailto:[email protected]] 
Sent: Thursday, June 19, 2014 12:01 PM
To: [email protected]
Subject: Re: Is TikaExceptionMapper in tika-server actually used?

Hi Tim, sorry for a delay,
I can see it is expected to process a checked exception, so unless we 
have one of the root resources throwing it from one of the methods then 
it is not used

Thanks, Sergey
On 19/06/14 02:22, Allison, Timothy B. wrote:
> All,
>
>    In working on adding the stacktrace from a parse exception to the server 
> response, I'm trying to find the most jax-rsly elegant way of handling 
> exceptions.  There seems to be a bit of duplicated code, some with good 
> reason, for exception handling.  Is TikaExceptionMapper actually used by 
> anything?  If not, should I try to modify code to use it or something similar 
> to it?
>
>     Thank you.
>
>             Best,
>
>                  Tim
>

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