NAME
pmdumplog - dump internal details of a performance metrics
archive log
SYNOPSIS
pmdumplog [-adiLlmrstz] [-n pmnsfile] [-S starttime] [-T
endtime] [-Z timezone] archive [metricname ...]
pmdumplog [-v file]
DESCRIPTION
pmdumplog dumps assorted control, metadata, index and
state information from the files of a Performance Co-Pilot
(PCP) archive log. The archive log has the base name
archive and must have been previously created using pmlog
ger(1).
Normally pmdumplog operates on the distributed Performance
Metrics Name Space (PMNS), however if the -n option is
specified an alternative local PMNS is loaded from the
file pmnsfile.
If any metricname arguments appear, the report will be
restricted to information relevant to the named perfor
mance metrics. If metricname is a non-leaf node in the
namespace (see pmns(4)), then pmdumplog will recursively
descend the archive's namespace and report on all leaf
nodes.
The options control the specific information to be
reported.
-a Report everything, i.e. the flags -d, -i, -l, -m, -s
and -t.
-d Display the metadata and descriptions for those per
formance metrics that appear at least once in the
archive: see pmLookupDesc(3) for more details on the
metadata describing metrics.
-i Display the instance domains, and any variations in
their instance members over the duration of the
archive: see pmGetInDom(3) for more details on
instance domains.
-l Dump the archive label, showing the log format ver
sion, the time and date for the start and (current)
end of the archive, and the host from which the per
formance metrics values were collected.
-L Like -l, just a little more verbose.
-m Print the values for the performance metrics from the
Metrics without an instance domain are reported as:
[timestamp] metric-id (metric-name): value value
Metrics with an instance domain are reported as:
[timestamp] metric-id (metric-name):
inst [internal-id or "external-id"] value value
The timestamp is only reported for the first metric
in a group of metrics sharing the same timestamp.
-r Process the archive in reverse order, from most
recent to oldest recorded metric values.
-S When using the -m option, the report will be
restricted to those records logged at or after start
time. Refer to PCPIntro(1) for a complete descrip
tion of the syntax for starttime.
-s Report the size in bytes of each physical record in
the archive.
-T When using the -m option, the report will be
restricted to those records logged before or at end
time. Refer to PCPIntro(1) for a complete descrip
tion of the syntax for endtime.
-t Dump the temporal index that is used to provide
accelerated access to large archive files.
The integrity of the index will also be checked. If
the index is found to be corrupted, the ``*.index''
file can be renamed or removed and the archive will
still be accessible, however retrievals may take
longer without the index. Note however that a cor
rupted temporal index is usually indicative of a
deeper malaise that may infect all files in a PCP
archive.
-v Verbose mode. Dump the records from a physical
archive file in hexadecimal format. In this case
file is the name of a single file, usually a basename
(as would otherwise appear as the archive command
line argument), concatenated with ``.'' followed by
one of meta (the metadata), index (the temporal
index), or a digit (one of the volumes of metric val
ues).
Use of -v precludes the use of all other options and
arguments.
By default, pmdumplog reports the time of day according to
the local timezone on the system where pmdumplog is run.
mat of the environment variable TZ as described in envi
ron(5). The -z option changes the timezone to the local
timezone at the host that is the source of the performance
metrics, as specified in the label record of the archive
log.
FILES
$PCP_VAR_DIR/pmns/*
default local PMNS specification files
$PCP_LOG_DIR/pmloggerhostname
Default directory for PCP archives containing
performance metric values collected from the
host hostname.
PCP ENVIRONMENT
Environment variables with the prefix PCP_ are used to
parameterize the file and directory names used by PCP. On
each installation, the file /etc/pcp.conf contains the
local values for these variables. The $PCP_CONF variable
may be used to specify an alternative configuration file,
as described in pcp.conf(4).
SEE ALSO
PCPIntro(1), pmlogcheck(1), pmlogger(1), pmlog
ger_check(1), pmlogger_daily(1), pmlogmerge(1), PMAPI(3),
pmGetInDom(3), pmLookupDesc(3), pcp.conf(4), pcp.env(4)
and pmns(4).
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