Re: [pcp] PMDA CIFS

[AurÃlien Aptel <aurelien.aptel+pcp@xxxxxxxxx>]

I'm almost done but I *still* don't get how pmda_inst_lookup() and
hash-indom work...

I have the following at the end of cifs_fetch():

    $PMDA->replace_indom(ALL_MOUNT_INDOM, \%SHARES);
    $PMDA->replace_indom(SMB1_MOUNT_INDOM, \%smb1);
    $PMDA->replace_indom(SMB2_MOUNT_INDOM, \%smb2);
    $PMDA->log("fetch: ".Dumper(\%smb1));

And this in the cifs_fetch() callback:

    my ($cluster, $item, $inst) = @_;
    my $pmid = pmda_pmid($cluster, $item);
    my $indom = $PMID_INDOM{$pmid};

    if ($inst != PM_IN_NULL && $indom != PM_INDOM_NULL) {
        my $v = pmda_inst_lookup($indom, $inst);
        $PMDA->log("fetch_cb: ".Dumper($v));
    }

But in the log, I have:

    [Tue Sep  3 16:48:45] pmdacifs(7947) Info: fetch: $VAR1 = {
              '\\\\localhost\\shareb' => {
                                           'proto' => 'smb1',
                                           'id' => 1
                                         },
              '\\\\localhost\\sharea' => {
                                           'proto' => 'smb1',
                                           'id' => 0
                                         }
            };
    [Tue Sep  3 16:48:45] pmdacifs(7947) Info: fetch_cb: $VAR1 = undef;
    [Tue Sep  3 16:48:45] pmdacifs(7947) Error: pmdaFetch: PMID
121.1.30 not handled by fetch callback


Why is $v undefined? It should be set to a hashref of a share set
above in fetch()!