def connect(self):
""" Establish a PMAPI context """
context, self.source = pmapi.pmContext.set_connect_options(self.opts, self.source, self.speclocal)
if context == PM_CONTEXT_HOST:
try:
self.pmfg = pmapi.fetchgroup(context, self.source)
except pmapi.pmErr:
context = PM_CONTEXT_LOCAL
if self.pmfg == None:
self.pmfg = pmapi.fetchgroup(context, self.source)
self.pmfg_ts = self.pmfg.extend_timestamp()
self.context = self.pmfg.get_context()
if pmapi.c_api.pmSetContextOptions(self.context.ctx, self.opts.mode, self.opts.delta):
raise pmapi.pmUsageErr()
def connect(self):
""" Establish PMAPI context """
context, self.source = pmapi.pmContext.set_connect_options(self.opts, self.source, self.speclocal)
self.pmfg = pmapi.fetchgroup(context, self.source)
self.pmfg_ts = self.pmfg.extend_timestamp()
self.context = self.pmfg.get_context()
if pmapi.c_api.pmSetContextOptions(self.context.ctx, self.opts.mode, self.opts.delta):
raise pmapi.pmUsageErr()
def connect(self):
""" Establish a fetchgroup PMAPI context to archive, host or local,
via environment passed in by pcp(1). The ss(1) command has many
clashes with standard PCP arguments so this is the only supported
invocation. Debug options (if any) are set for us by pcp(1).
Return True or False if we fail to connect.
"""
# source
pcp_host = os.getenv("PCP_HOST")
pcp_archive = os.getenv("PCP_ARCHIVE")
# time window
pcp_origin = os.getenv("PCP_ORIGIN_TIME")
pcp_start_time = os.getenv("PCP_START_TIME")
pcp_align_time = os.getenv("PCP_ALIGN_TIME")
pcp_timezone = os.getenv("PCP_TIMEZONE")
pcp_hostzone = os.getenv("PCP_HOSTZONE")
pcp_debug = os.getenv("PCP_DEBUG")
if pcp_archive is not None:
self.context_type = PM_CONTEXT_ARCHIVE
if pcp_origin is None and pcp_start_time is None:
pcp_origin = "-0" # end of archive
self.source = pcp_archive
else:
self.context_type = PM_CONTEXT_HOST
if pcp_host is not None:
self.source = pcp_host
else:
self.source = "localhost"
try:
self.pmfg = pmapi.fetchgroup(self.context_type, self.source)
self.context = self.pmfg.get_context()
if pcp_archive:
options = pmapi.pmOptions("a:A:O:S:D:zZ:")
optargv = ["pcp-ss", pcp_archive]
if pcp_debug:
optargv.append("-D%s" % pcp_debug)
if pcp_align_time:
optargv.append("-A%s" % pcp_align_time)
if pcp_timezone:
optargv.append("-Z%s" % pcp_timezone)
if pcp_hostzone:
optargv.append("-z")
if pcp_origin:
optargv.append("-O%s" % pcp_origin)
pmapi.pmContext.fromOptions(options, optargv)
origin = options.pmGetOptionOrigin()
self.context.pmSetMode(PM_MODE_INTERP, origin, 0)
elif pcp_start_time:
optargv.append("-S%s" % pcp_start_time)
pmapi.pmContext.fromOptions(options, optargv)
start = options.pmGetOptionStart()
self.context.pmSetMode(PM_MODE_INTERP, start, 0)
except pmapi.pmErr as error:
sys.stderr.write("%s: %s '%s'\n" %
(error.progname(), error.message(), self.source))
return False
# check network.persocket metrics are available
try:
self.context.pmLookupName((pmns + ".filter"))
except Exception:
if self.context_type == PM_CONTEXT_HOST:
msg = "on host %s.\nIs the 'sockets' PMDA installed and enabled? See pmdasockets(1)." % self.source
else:
msg = "in archive %s" % self.source
print("Error: metrics for '%s' not found %s" % (pmns, msg))
return False
return True
