Re: [pcp] PCP Updates: qa fallout from ipv6/unix sockets for pmlogger and pmlc

[Dave Brolley <brolley@xxxxxxxxxx>]

On 02/18/2014 07:33 PM, Nathan Scott wrote:
> ----- Original Message -----
> > [...]
> > A great idea!  We could use ~/.pcp/pmlogger (which also houses the
> > pmchart/pmcollectl/pm* personal recordings, so maybe not there) or
> > ~/.pcp/tmp/pmlogger ala ($PCP_TMP_DIR/pmlogger) - somewhere below
> > ~/.pcp anyway.
On my system, PCP_TMP_DIR is /var/lib/pcp/tmp, which is where the 
pmlogger port map file is kept, and has the same issue as PCP_RUN_DIR, 
i.e. not writable by normal users.
I think that ~/.pcp/pmlogger would be a good place.
> Just realised we'll probably want other tools doing similar things -
> the pmtime socket should be switched to af_unix too (having to seek
> for an available port is not ideal), so we'll need a home for those
> files too.  Please choose a location with this in mind.
For other tools we could use ~/.pcp/<toolname>.

I don't see an existing environment variable for ~/.pcp. Systemtap uses 
SYSTEMTAPDIR, but PCPDIR doesn't seem to fit convention. How about 
PCP_USER_DIR. Any other suggestions?
Dave