[1.4.6] Windows 2008 agents crashes / stops working

[NOB]

Hi

we have a large list of "agent active" items (mostly performance counters for MS Exchange 2007) and a slightly shorter list of "agent" ones, again most of them performance counters.

The "agent" ones are requested on a virtual IP from the agent running on the active node.

If we enable all items, the agent crashes in a few second to minutes.

According to the logfile the last item "processes" was an "agent" one.

From than on the agent either crashes or stops answering to any
request and simply hangs.

Is there a limit for items on the Windows agent ?

How can we identify problems with the large number of connections ?

The application log shows:

Faulting application zabbix_agentd.exe, version 0.0.0.0, time stamp 0x49c7653f, faulting module ntdll.dll, version 6.0.6002.18005, time stamp 0x49e0421d, exception code 0xc0000005, fault offset 0x0000000000063afb, process id 0x230c, application start time 0x01c9fbda381feadf.

The end of the logfile contains:

 10020:20090703:150154 Processing request.
 10020:20090703:150154 In check_security()
 10020:20090703:150154 Requested [perf_counter[\MSExchange Database ==> Instances(Information Store/RE-Mailboxen-SG01)\I/O Database Reads Average Latency]]
  9300:20090703:150236 Processing request.
  9300:20090703:150236 In check_security()
  9300:20090703:150236 Requested [agent.ping]
  9300:20090703:150236 Sending back [1]
 10020:20090703:150254 Sending back [ZBX_NOTSUPPORTED]
  6932:20090703:150300 Processing request.
  6932:20090703:150300 In check_security()
  6932:20090703:150300 Requested [perf_counter[\MSExchange Database ==> Instances(Information Store/RE-Mailboxen-SG01)\I/O Database Reads Average Latency]]
  6932:20090703:150400 Sending back [ZBX_NOTSUPPORTED]
  9640:20090703:150407 Processing request.
  9640:20090703:150407 In check_security()
  9640:20090703:150407 Requested [perf_counter[\MSExchange Database ==> Instances(Information Store/RE-Mailboxen-SG01)\I/O Database Reads Average Latency]]
  9640:20090703:150507 Sending back [ZBX_NOTSUPPORTED]
  6428:20090703:150513 Processing request.
  6428:20090703:150513 In check_security()
  6428:20090703:150513 Requested [perf_counter[\MSExchange Database ==> Instances(Information Store/RE-Mailboxen-SG01)\I/O Database Reads Average Latency]]
  6428:20090703:150613 Sending back [ZBX_NOTSUPPORTED]
   716:20090703:150619 Processing request.
   716:20090703:150619 In check_security()
   716:20090703:150619 Requested [perf_counter[\MSExchange Database ==> Instances(Information Store/RE-Mailboxen-SG01)\I/O Database Reads Average Latency]]
   716:20090703:150719 Sending back [ZBX_NOTSUPPORTED]
  6280:20090703:150726 Processing request.
  6280:20090703:150726 In check_security()
  6280:20090703:150726 Requested [perf_counter[\MSExchange Database ==> Instances(Information Store/RE-Mailboxen-SG01)\I/O Database Reads Average Latency]]
  7796:20090703:150736 Processing request.
  7796:20090703:150736 In check_security()
  7796:20090703:150736 Requested [agent.ping]
  7796:20090703:150736 Sending back [1]
  6280:20090703:150826 Sending back [ZBX_NOTSUPPORTED]
  6052:20090703:150832 Processing request.
  6052:20090703:150832 In check_security()
  6052:20090703:150832 Requested [perf_counter[\MSExchange Database ==> Instances(Information Store/RE-Mailboxen-SG01)\I/O Database Reads Average Latency]]
  6052:20090703:150932 Sending back [ZBX_NOTSUPPORTED]
  2932:20090703:150938 Processing request.
  2932:20090703:150938 In check_security()
  2932:20090703:150938 Requested [perf_counter[\MSExchange Database ==> Instances(Information Store/RE-Mailboxen-SG01)\I/O Database Reads Average Latency]]
  2932:20090703:151038 Sending back [ZBX_NOTSUPPORTED]
  6776:20090703:151045 Processing request.
  6776:20090703:151045 In check_security()
  6776:20090703:151045 Requested [perf_counter[\MSExchange Database ==> Instances(Information Store/RE-Mailboxen-SG01)\I/O Database Reads Average Latency]]
  6776:20090703:151145 Sending back [ZBX_NOTSUPPORTED]
  6116:20090703:151151 Processing request.
  6116:20090703:151151 In check_security()
  6116:20090703:151151 Requested [perf_counter[\MSExchange Database ==> Instances(Information Store/RE-Mailboxen-SG01)\I/O Database Reads Average Latency]]
  2932:20090703:151236 Processing request.
  2932:20090703:151236 In check_security()
  2932:20090703:151236 Requested [agent.ping]
  2932:20090703:151236 Sending back [1]
  6116:20090703:151251 Sending back [ZBX_NOTSUPPORTED]

I guess, switching to a 1.6.x agent might help, here, because
a much lower number of parallel network connections will be done.

Any help / opinions ?

Thanks in advance,

Norbert.

[vinny]

I monitor 2008 boxes with 1.6.x agent without any pb..
you can try upgrading
vinny