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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: PID file locked on Windows 2008 system
Date Tue, 04 Nov 2014 23:19:50 GMT
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David,

On 11/4/14 5:54 PM, David kerber wrote:
> On 11/4/2014 5:25 PM, Christopher Schultz wrote: Anil,
> 
> On 11/4/14 2:58 PM, Anil Ambati wrote:
>>>> We have a requirement to read the PID file created by the
>>>> Tomcat server process on Windows, but we are not able to
>>>> using RandomAccessFile or FileInputStream because the file
>>>> seems to be locked by the Tomcat process.
>>>> 
>>>> 
>>>> Why does the Tomcat server keep the PID file locked,
>>>> preventing other processes to even read the file? Is there a
>>>> work around or solution for this problem?
> 
> You must be using commons-daemon's procrun, otherwise known as the 
> Windows service wrapper. That process creates (and possibly locks)
> the PID file for Tomcat.
> 
>> This is only peripherally related to the OP, but is there a
>> situation where that file is not created, when using the windows
>> service wrapper? I run a dozen or so instances of TC 7.0.54 as
>> separate services on Windows 2008 R2 using the included renamed
>> version of procrun, and don't have any pid files anywhere that I
>> can find on my file system.

Sure: if you don't specify a --PidFile argument in procrun, you won't
get a PID file.

- -chris
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