[j-nsp] srrd process

[Tim Jackson]

451m here on an MX104 running 14.2:

 2269 root             1  40    0   451M   445M select  36:07  0.00% srrd

Looks to be the sampling daemon:

http://www.juniper.net/techpubs/en_US/junos15.1/information-products/topic-collections/release-notes/15.1F5/topic-104232.html

With Junos OS Release 15.1F2 and later, when inline sampling is enabled on
MX Series-based FPC, the srrd (Sampling Route-Record Daemon) process would
be created to maintain, collect and export JFLOW records. On a regular time
intervals, the srrd scans through the sampling database for any
update/change in the record. In a scaled environment with more route churn,
for example 1.14M routes, the scan process might hog CPU for more than
2.5sec which leads to FPC crash. In some situations, the scan process can
run for longer time without causing FPC crash, but it can cause BFD
sessions to flap. PR1158154

--
Tim


On Thu, May 19, 2016 at 12:03 PM, Han Hwei Woo <han at astutehosting.com>
wrote:

> We had an MX80 become unresponsive the other night while trying to turn
> down our peers at an exchange during a maintenance, which was due to
> running out of RAM and a bunch of processes swapping out. We had recently
> upgraded to 14.2R6.5, and have now noticed there is a new process that
> wasn't present in 12.3 and 13.3.
>
>   PID USERNAME       THR PRI NICE   SIZE    RES STATE    TIME   WCPU
> COMMAND
>  1733 root             1   4    0   778M   705M kqread  43:13  0.73% rpd
>  1745 root             1  40    0   585M   578M select   0:20  0.00% srrd
>
> I can't seem to find anything about what srrd is. Anyone have any ideas,
> and what function it serves? Almost 600MB out of a total 2GB on an MX80 is
> quite a good portion.
>
> --
> Han Hwei Woo
> han at astutehosting.com
>
> Astute Hosting Incorporated
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