A question about phosphor-sel-logger

[Will Liang (梁永鉉)]

> 
> On 5/1/2019 7:36 PM, Will Liang (梁永鉉) wrote:
> > Hi,
> >
> > Our BMC is using package "phosphor-sel-logger" to support IPMI SEL. it
> saved the event data in the journal and the id is 1-65534.
> > It means it can save 65534 records. Actually, we found the file size of single
> journal file is around 8MB(the default of journal file is 64MB, it will be
> separated by 8 files).
> > We cannot show all SELs(65534 records) in IPMI. it might be a bug here if we
> don't limit the maximum.
> >
> > Is it necessary to limit the number of SELs to smaller?
> 
> Hi Will,
> 
> The reason that value is left at 65534 is because in the journal we don't have a
> way to determine how many total SEL entries are possible or how much space
> is left.
> 
> With the journal set at 64MB we could see more than 30000 entries.  When I
> made the journal persistent at 6MB, we could see anywhere between
> 1200-2000 entries.
> 
> We could choose a smaller number for IPMI to report, but it will be arbitrary
> because the journal size can be changed without notifying IPMI.
> 
> However, because of the size (1200 entries in 6MB) and other limitations with
> a persistent journal, I'm experimenting with using rsyslog to log SEL entries
> into a syslog file.  This will allow the journal to remain volatile while
> persisting only the logs that we need to.  It will also have a more consistent
> size, so it will be possible to fix the size to a smaller number more accurately
> as you suggest.
> 
> You can see my current rsyslog changes here:
> https://gerrit.openbmc-project.xyz/q/topic:"rsyslog+SEL"+(status:open%20OR%
> 20status:merged)
> 
> If you are interested, I will also share my rsyslog configuration, but I was
> planning to test it out internally for a while to make sure it will work so I don't
> cause thrash if it has to change again.

Hi Jason,

I am very thankful that you reply me quickly and it's great to hear that you are working on this issue.
If you can share your rsyslog configuration with me that will be a good news for me, I can trace it first.

According to the above URL, is it something I missed, I did not find the "add sel" to sys log function?
I wander to know how you add sel to sys log. Or you want to share it after internal testing.

Thanks,
Will

> Thanks,
> -Jason
> >
> > BRs,
> > Will
> >