pmlogcheck(1) [centos man page]
PMLOGCHECK(1) General Commands Manual PMLOGCHECK(1) NAME
pmlogcheck - checks for invalid data in a PCP archive SYNOPSIS
pmlogcheck [-lz] [-n pmnsfile] [-S start] [-T finish] [-Z timezone] archive DESCRIPTION
pmlogcheck prints information about the nature of any invalid data which it detects in a PCP archive. Of particular interest are wrapped values for metrics which are expected to have monotonically increasing values. The archive has the base name archive and must have been previously created using pmlogger(1). Normally pmlogcheck operates on the default Performance Metrics Namespace (pmns(5)), however if the -n option is specified an alternative namespace is loaded from the file pmnsfile. The command line options -S and -T can be used to specify a time window over which metrics should be summarized. These options are common to many Performance Co-Pilot tools and are fully described in PCPIntro(1). The -l option prints the archive label, showing the log format version, the time and date for the start and (current) end of the archive, and the host from which the performance metrics values were collected. By default, pmlogcheck reports the time of day according to the local timezone on the system where pmlogcheck is run. The -Z option changes the timezone to timezone in the format of the environment variable TZ as described in environ(5). The -z option changes the time- zone 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. OUTPUT FORMAT
For each metric having ``counter'' semantics (i.e. the metric is expected to increase monotonically) which has been detected as having wrapped at some point in the archive, pmlogcheck produces output describing the metric name (with instance identifiers where appropriate), the internal storage type for the metric, the value of the metric before the counter wrap (with its associated timestamp), and the value of the metric after the wrap (also with a timestamp). pmlogcheck produces two different timestamp formats, depending on the interval over which it is run. For an interval greater than 24 hours, the date is displayed in addition to the time at which the counter wrap occurred. If the extent of the data being checked is less than 24 hours, a more precise format is used (time is displayed with millisecond precision, but without the date). FILES
$PCP_VAR_DIR/pmns/* default PMNS specification files $PCP_LOG_DIR/pmlogger/hostname default directory for PCP archives containing performance data 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 configura- tion file, as described in pcp.conf(5). SEE ALSO
PCPIntro(1), pmdumplog(1), pmlogextract(1), pmlogger(1), pmlogmerge(1), pmlogsummary(1), pmval(1), pcp.conf(5), pcp.env(5) and pmns(5). DIAGNOSTICS
All are generated on standard error and are intended to be self- explanatory. Performance Co-Pilot PCP PMLOGCHECK(1)
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PMDUMPLOG(1) General Commands Manual PMDUMPLOG(1) 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 pmlogger(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 performance metrics. If metricname is a non-leaf node in the namespace (see pmns(5)), 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 performance 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 version, the time and date for the start and (current) end of the archive, and the host from which the performance metrics values were collected. -L Like -l, just a little more verbose. -m Print the values for the performance metrics from the archive. This is the default display option. Metrics without an instance domain are reported as: [timestamp] metric-id (metric-name): value1 value2 Metrics with an instance domain are reported as: [timestamp] metric-id (metric-name): inst [internal-id or "external-id"] value1 value2 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 starttime. Refer to PCPIntro(1) for a complete description 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 endtime. Refer to PCPIntro(1) for a com- plete description 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 corrupted 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 values). 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. The -Z option changes the timezone to timezone in the format of the environment variable TZ as described in environ(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/pmlogger/hostname 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 configura- tion file, as described in pcp.conf(5). SEE ALSO
PCPIntro(1), pmlogcheck(1), pmlogger(1), pmlogger_check(1), pmlogger_daily(1), pmloglabel(1), pmlogmerge(1), PMAPI(3), pmGetInDom(3), pmLookupDesc(3), pcp.conf(5), pcp.env(5) and pmns(5). Performance Co-Pilot PCP PMDUMPLOG(1)