AW: bzr selftest (on solaris 10): too may open files

[John Arbash Meinel]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Voelker, Bernhard wrote:

...

>> I had this problem with another program using java recently.
>>
> (http://amanica.blogspot.com/2008/11/javanetsocketexception-too-many-ope
> n.html)
>> We got around it by increasing the amount of available memory.
>>
>> If you are root you can also try to increase the limit and see if that
> helps. 
>> regards
>> marius
> 
> well, I'm running bzr on smaller machines:
>   4 dual-core dual-thread SPARC64-VI 2150MHz cpus, system freq: 1012MHz
>   total memory = 16384MB (16GB)
> 
> And I can't raise the limit: even if ulimit shows a greater value the
> kernel does not let me open more files - I have to talk to my admins
> if the Solaris zone the host is running in can make a difference,
> but I don't think so because it's the same in the 'global' zone.
> 
> Thanks,
> Berny
> 
> 

I'm a bit curious why you would be running into problems. I don't see
any reason why bzr would need more than 256 file handles open
*concurrently*. It makes me wonder if Sun isn't re-using previously
opened file handles.

I suppose it could be a lot of things. Like it doesn't re-use a handle
that was open for writing. Or it has problems if you rename a file. Or
if you delete an open file, etc. We try not to do things to open files,
because that doesn't work on Windows, but I know if you cancel some
tests they don't always clean up perfectly.

So in the end, I would guess at something more like the python garbage
collector not releasing files properly, or some odd interaction with the
os. I certainly don't see any reason why we would have more than a
handful of file handles open concurrently.

Hmm... maybe it is the "leaking threads" from the Remote tests? I
suppose each one could be a handle or two... just a thought.

John
=:->
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (Cygwin)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iEYEARECAAYFAkkhxFkACgkQJdeBCYSNAAO0LgCfQu7RHg6Q/J/XvzUULgMLjJCH
A6kAoKz0GY7VLPeNykkaZMh4bfma0is2
=w8Qo
-----END PGP SIGNATURE-----