Hi Andy,
Yes ... and I have no clue where this unlimited is coming from, I tried doing my
best to set it to something more reasonable :) I'm running on one of our test
VMs, centos 6.5. It's one of the "shared root" machines with ipv6 address so
chaoss reigns there.
Thanks for adding the checks against this.
Matevz
On 12/02/14 07:40, Andrew Hanushevsky wrote:
> Hi Matevz,
>
> OK, so you get
>
>>>> Max processes unlimited unlimited
>>>> processes ### <------ this
>
>>>> [1509] root@cabinet-10-10-11 /var/log/xrootd# sudo -u xrootd bash -c "ulimit
>>>> -a"
>>>> max user processes (-u) 8192
>
> While I get
> Max processes 127401 127401 processes
> ulimit -a
> max user processes (-u) 1024
>
> So, it's obvious you specified "-1" for the hard process limit (and maybe more)
> but that doesn't cut it because Linux infinity doesn't work in practice for many
> things (there is always a limit for all practical purposes) and we'd like to
> know what that really is to not over-run the system.
>
> I suppose I can check for -1 but then I don't know what the practical internal
> limit has to be set to except for some extremely large value.
>
>>>> Any ideas what else to check / change?
> Yes, while -1 is a valid specfication for most hard limits it's best not to
> specify it. Use some good reasonble number or you're likely to run into trouble.
>
> This is the code that does this check:
>>>>
>>>> https://github.com/xrootd/xrootd/blob/master/src/Xrd/XrdConfig.cc#L855
> Actually, all that code does is display the limit the the XrdScheduler
> constructor used (actually set to). That's where the problem occurs.
>
> Andy
>
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