1PCP2XML(1) General Commands Manual PCP2XML(1)
2
6 pcp2xml - pcp-to-xml metrics exporter
7
9 pcp2xml [-5CGHIjLmnrRvVxXz?] [-4 action] [-8|-9 limit] [-a archive]
10 [-A align] [--archive-folio folio] [-b|-B space-scale] [-c config]
11 [--container container] [--daemonize] [-e derived] [-f format] [-F out‐
12 file] [-h host] [-i instances] [-J rank] [-K spec] [-N predicate] [-O
13 origin] [-P|-0 precision] [-q|-Q count-scale] [-s samples] [-S start‐
14 time] [-t interval] [-T endtime] [-y|-Y time-scale] [-Z timezone] met‐
15 ricspec [...]
16
18 pcp2xml is a customizable performance metrics exporter tool from PCP to
19 XML. Any available performance metric, live or archived, system and/or
20 application, can be selected for exporting using either command line
21 arguments or a configuration file.
22 pcp2xml is a close relative of pmrep(1). Refer to pmrep(1) for the
24 metricspec description accepted on pcp2xml command line. See pm‐
25 rep.conf(5) for description of the pcp2xml.conf configuration file syn‐
26 tax. This page describes pcp2xml specific options and configuration
27 file differences with pmrep.conf(5). pmrep(1) also lists some usage
28 examples of which most are applicable with pcp2xml as well.
29 Only the command line options listed on this page are supported, other
31 options available for pmrep(1) are not supported.
32 Options via environment values (see pmGetOptions(3)) override the cor‐
34 responding built-in default values (if any). Configuration file op‐
35 tions override the corresponding environment variables (if any). Com‐
36 mand line options override the corresponding configuration file options
37 (if any).
38
40 pcp2xml uses a configuration file with syntax described in pm‐
41 rep.conf(5). The following options are common with pmrep.conf: ver‐
42 sion, source, speclocal, derived, header, globals, samples, interval,
43 type, type_prefer, ignore_incompat, names_change, instances, live_fil‐
44 ter, rank, limit_filter, limit_filter_force, invert_filter, predicate,
45 omit_flat, include_labels, precision, precision_force, count_scale,
46 count_scale_force, space_scale, space_scale_force, time_scale,
47 time_scale_force. The rest of the pmrep.conf options are recognized
48 but ignored for compatibility.
49 pcp2xml specific options
51 extended (boolean)
52 Write extended information about metrics. Corresponding command
53 line option is -x. Defaults to no.
54 everything (boolean)
56 Write everything known about metrics, including PCP internal IDs.
57 Labels are, however, omitted for backward compatibility. Enable
58 include_labels to include them as well. Corresponding command line
59 option is -X. Defaults to no.
60
62 The available command line options are:
63 -0 precision, --precision-force=precision
65 Like -P but this option will override per-metric specifications.
66 -4 action, --names-change=action
68 Specify which action to take on receiving a metric names change
69 event during sampling. These events occur when a PMDA discovers
70 new metrics sometime after starting up, and informs running client
71 tools like pcp2xml. Valid values for action are update (refresh
72 metrics being sampled), ignore (do nothing - the default behav‐
73 iour) and abort (exit the program if such an event occurs).
74 -5, --ignore-unknown
76 Silently ignore any metric name that cannot be resolved. At least
77 one metric must be found for the tool to start.
78 -8 limit, --limit-filter=limit
80 Limit results to instances with values above/below limit. A posi‐
81 tive integer will include instances with values at or above the
82 limit in reporting. A negative integer will include instances
83 with values at or below the limit in reporting. A value of zero
84 performs no limit filtering. This option will not override possi‐
85 ble per-metric specifications. See also -J and -N.
86 -9 limit, --limit-filter-force=limit
88 Like -8 but this option will override per-metric specifications.
89 -a archive, --archive=archive
91 Performance metric values are retrieved from the set of Perfor‐
92 mance Co-Pilot (PCP) archive log files identified by the archive
93 argument, which is a comma-separated list of names, each of which
94 may be the base name of an archive or the name of a directory con‐
95 taining one or more archives.
96 -A align, --align=align
98 Force the initial sample to be aligned on the boundary of a natu‐
99 ral time unit align. Refer to PCPIntro(1) for a complete descrip‐
100 tion of the syntax for align.
101 --archive-folio=folio
103 Read metric source archives from the PCP archive folio created by
104 tools like pmchart(1) or, less often, manually with mkaf(1).
105 -b scale, --space-scale=scale
107 Unit/scale for space (byte) metrics, possible values include
108 bytes, Kbytes, KB, Mbytes, MB, and so forth. This option will not
109 override possible per-metric specifications. See also pmParseU‐
110 nitsStr(3).
111 -B scale, --space-scale-force=scale
113 Like -b but this option will override per-metric specifications.
114 -c config, --config=config
116 Specify the config file or directory to use. In case config is a
117 directory all files in it ending .conf will be included. The de‐
118 fault is the first found of: ./pcp2xml.conf, $HOME/.pcp2xml.conf,
119 $HOME/pcp/pcp2xml.conf, and $PCP_SYSCONF_DIR/pcp2xml.conf. For
120 details, see the above section and pmrep.conf(5).
121 --container=container
123 Fetch performance metrics from the specified container, either lo‐
124 cal or remote (see -h).
125 -C, --check
127 Exit before reporting any values, but after parsing the configura‐
128 tion and metrics and printing possible headers.
129 --daemonize
131 Daemonize on startup.
132 -e derived, --derived=derived
134 Specify derived performance metrics. If derived starts with a
135 slash (``/'') or with a dot (``.'') it will be interpreted as a
136 PCP derived metrics configuration file, otherwise it will be in‐
137 terpreted as comma- or semicolon-separated derived metric expres‐
138 sions. For complete description of derived metrics and PCP de‐
139 rived metrics configuration files see pmLoadDerivedConfig(3) and
140 pmRegisterDerived(3). Alternatively, using pmrep.conf(5) configu‐
141 ration syntax allows defining derived metrics as part of metric‐
142 sets.
143 -G, --no-globals
145 Do not include global metrics in reporting (see pmrep.conf(5)).
146 -f format, --timestamp-format=format
148 Use the format string for formatting the timestamp. The format
149 will be used with Python's datetime.strftime method which is
150 mostly the same as that described in strftime(3). The default is
151 %Y-%m-%d %H:%M:%S.
152 -F outfile, --output-file=outfile
154 Specify the output file outfile.
155 -h host, --host=host
157 Fetch performance metrics from pmcd(1) on host, rather than from
158 the default localhost.
159 -H, --no-header
161 Do not print any headers.
162 -i instances, --instances=instances
164 Retrieve and report only the specified metric instances. By de‐
165 fault all instances, present and future, are reported.
166 Refer to pmrep(1) for complete description of this option.
168 -I, --ignore-incompat
170 Ignore incompatible metrics. By default incompatible metrics
171 (that is, their type is unsupported or they cannot be scaled as
172 requested) will cause pcp2xml to terminate with an error message.
173 With this option all incompatible metrics are silently omitted
174 from reporting. This may be especially useful when requesting
175 non-leaf nodes of the PMNS tree for reporting.
176 -j, --live-filter
178 Perform instance live filtering. This allows capturing all named
179 instances even if processes are restarted at some point (unlike
180 without live filtering). Performing live filtering over a huge
181 number of instances will add some internal overhead so a bit of
182 user caution is advised. See also -n.
183 -J rank, --rank=rank
185 Limit results to highest/lowest ranked instances of set-valued
186 metrics. A positive integer will include highest valued instances
187 in reporting. A negative integer will include lowest valued in‐
188 stances in reporting. A value of zero performs no ranking. Rank‐
189 ing does not imply sorting, see -6. See also -8.
190 -K spec, --spec-local=spec
192 When fetching metrics from a local context (see -L), the -K option
193 may be used to control the DSO PMDAs that should be made accessi‐
194 ble. The spec argument conforms to the syntax described in pm‐
195 SpecLocalPMDA(3). More than one -K option may be used.
196 -L, --local-PMDA
198 Use a local context to collect metrics from DSO PMDAs on the local
199 host without PMCD. See also -K.
200 -m, --include-labels
202 Include PCP metric labels in the output.
203 -n, --invert-filter
205 Perform ranking before live filtering. By default instance live
206 filtering (when requested, see -j) happens before instance ranking
207 (when requested, see -J). With this option the logic is inverted
208 and ranking happens before live filtering.
209 -N predicate, --predicate=predicate
211 Specify a comma-separated list of predicate filter reference met‐
212 rics. By default ranking (see -J) happens for each metric indi‐
213 vidually. With predicates, ranking is done only for the specified
214 predicate metrics. When reporting, rest of the metrics sharing
215 the same instance domain (see PCPIntro(1)) as the predicate will
216 include only the highest/lowest ranking instances of the corre‐
217 sponding predicate. Ranking does not imply sorting, see -6.
218 So for example, using proc.memory.rss (resident memory size of
220 process) as the predicate metric together with proc.io.total_bytes
221 and mem.util.used as metrics to be reported, only the processes
222 using most/least (as per -J) memory will be included when report‐
223 ing total bytes written by processes. Since mem.util.used is a
224 single-valued metric (thus not sharing the same instance domain as
225 the process related metrics), it will be reported as usual.
226 -O origin, --origin=origin
228 When reporting archived metrics, start reporting at origin within
229 the time window (see -S and -T). Refer to PCPIntro(1) for a com‐
230 plete description of the syntax for origin.
231 -P precision, --precision=precision
233 Use precision for numeric non-integer output values. The default
234 is to use 3 decimal places (when applicable). This option will
235 not override possible per-metric specifications.
236 -q scale, --count-scale=scale
238 Unit/scale for count metrics, possible values include count x
239 10^-1, count, count x 10, count x 10^2, and so forth from 10^-8 to
240 10^7. (These values are currently space-sensitive.) This option
241 will not override possible per-metric specifications. See also
242 pmParseUnitsStr(3).
243 -Q scale, --count-scale-force=scale
245 Like -q but this option will override per-metric specifications.
246 -r, --raw
248 Output raw metric values, do not convert cumulative counters to
249 rates. This option will override possible per-metric specifica‐
250 tions.
251 -R, --raw-prefer
253 Like -r but this option will not override per-metric specifica‐
254 tions.
255 -s samples, --samples=samples
257 The samples argument defines the number of samples to be retrieved
258 and reported. If samples is 0 or -s is not specified, pcp2xml
259 will sample and report continuously (in real time mode) or until
260 the end of the set of PCP archives (in archive mode). See also
261 -T.
262 -S starttime, --start=starttime
264 When reporting archived metrics, the report will be restricted to
265 those records logged at or after starttime. Refer to PCPIntro(1)
266 for a complete description of the syntax for starttime.
267 -t interval, --interval=interval
269 Set the reporting interval to something other than the default 1
270 second. The interval argument follows the syntax described in
271 PCPIntro(1), and in the simplest form may be an unsigned integer
272 (the implied units in this case are seconds). See also the -T op‐
273 tion.
274 -T endtime, --finish=endtime
276 When reporting archived metrics, the report will be restricted to
277 those records logged before or at endtime. Refer to PCPIntro(1)
278 for a complete description of the syntax for endtime.
279 When used to define the runtime before pcp2xml will exit, if no
281 samples is given (see -s) then the number of reported samples de‐
282 pends on interval (see -t). If samples is given then interval
283 will be adjusted to allow reporting of samples during runtime. In
284 case all of -T, -s, and -t are given, endtime determines the ac‐
285 tual time pcp2xml will run.
286 -v, --omit-flat
288 Report only set-valued metrics with instances (e.g. disk.dev.read)
289 and omit single-valued ``flat'' metrics without instances (e.g.
290 kernel.all.sysfork). See -i and -I.
291 -V, --version
293 Display version number and exit.
294 -x, --with-extended
296 Write extended information.
297 -X, --with-everything
299 Write everything known about metrics, including PCP internal IDs.
300 Labels are, however, omitted for backward compatibility, use -m to
301 include them as well.
302 -y scale, --time-scale=scale
304 Unit/scale for time metrics, possible values include nanosec, ns,
305 microsec, us, millisec, ms, and so forth up to hour, hr. This op‐
306 tion will not override possible per-metric specifications. See
307 also pmParseUnitsStr(3).
308 -Y scale, --time-scale-force=scale
310 Like -y but this option will override per-metric specifications.
311 -z, --hostzone
313 Use the local timezone of the host that is the source of the per‐
314 formance metrics, as identified by either the -h or the -a op‐
315 tions. The default is to use the timezone of the local host.
316 -Z timezone, --timezone=timezone
318 Use timezone for the date and time. Timezone is in the format of
319 the environment variable TZ as described in environ(7). Note that
320 when including a timezone string in output, ISO 8601 -style UTC
321 offsets are used (so something like -Z EST+5 will become UTC-5).
322 -?, --help
324 Display usage message and exit.
325
327 pcp2xml.conf
328 pcp2xml configuration file (see -c)
329 $PCP_SYSCONF_DIR/pmrep/*.conf
331 system provided default pmrep configuration files
332
334 Environment variables with the prefix PCP_ are used to parameterize the
335 file and directory names used by PCP. On each installation, the file
336 /etc/pcp.conf contains the local values for these variables. The
337 $PCP_CONF variable may be used to specify an alternative configuration
338 file, as described in pcp.conf(5).
339 For environment variables affecting PCP tools, see pmGetOptions(3).
341
343 PCPIntro(1), mkaf(1), pcp(1), pcp2elasticsearch(1), pcp2graphite(1),
344 pcp2influxdb(1), pcp2json(1), pcp2spark(1), pcp2xlsx(1), pcp2zabbix(1),
345 pmcd(1), pminfo(1), pmrep(1), pmGetOptions(3), pmLoadDerivedConfig(3),
346 pmParseUnitsStr(3), pmRegisterDerived(3), pmSpecLocalPMDA(3), LOGA‐
347 RCHIVE(5), pcp.conf(5), pmrep.conf(5), PMNS(5) and environ(7).
348Performance Co-Pilot PCP PCP2XML(1)