-----Forwarded Message----- >From: [email protected] >Sent: Jan 26, 2011 2:51 PM >To: Frank Fock <[email protected]> >Subject: Re: [SNMP4J] Thread count leads to SNMP response timeouts in snmp4j >version 1.7.1 > >These are our internal threads (ThreadPool) that spawn off and >manage snmp traffic to approximately 1000 peers. The problem is >that as we add additional threads, the org.snmp4j.Snmp object's >ResponseListener callback begins to timeout. > >I did not follow the memory question - the machine has several >Gigs of memory so that should not be an issue but is there any >particular thread based (minimum) limit that I must check? > >Thanks, > >HA > > >-----Original Message----- >>From: Frank Fock <[email protected]> >>Sent: Jan 25, 2011 5:08 PM >>To: [email protected] >>Subject: Re: [SNMP4J] Thread count leads to SNMP response timeouts in snmp4j >>version 1.7.1 >> >>Hi, >> >>What do you mean with "thread count"? >>Which class and method do you use to "increase" >>it? >>Why do you increase it? >>(You can process responses of many devices >>with a single thread) >>Do you have enough memory for the threads? >>(150*1MB = 150MB) >> >>Best regards, >>Frank >> >> >>On 26.01.2011 00:28, [email protected] wrote: >>> Hi All, >>> >>> We're running an old version of snmp4j (v1.7.1) where we are >>> see-ing a peculiar behavior with respect to how snmp4j handles >>> SNMP responses if the thread count is increased. >>> >>> Our default setting is 50 threads and when that value is increased to 150, >>> the SNMP response timeouts expire. We know that the peer has the ability >>> to send back responses even with 150 threads so any help in debugging this >>> would be appreciated. >>> >>> In particular: >>> >>> 1. The usual suspect is that this may be just inherent behavior >>> of the old stack. Can anyone confirm if they have seen similar issues? >>> >>> 2. What kind of debugging can be employ to understand this behavior? Are >>> there >>> logs that could identify the reason why timeouts may be occurring? >>> >>> 3. Are there any known enhancements to the latest snmp4j code that address >>> performance and timeout issues seen in the past? (to make it worth >>> pursuing). >>> >>> Thanks, >>> >>> HA >>> _______________________________________________ >>> SNMP4J mailing list >>> [email protected] >>> http://lists.agentpp.org/mailman/listinfo/snmp4j >> >>-- >>AGENT++ >>http://www.agentpp.com >>http://www.snmp4j.com >>http://www.mibexplorer.com >>http://www.mibdesigner.com >> >>_______________________________________________ >>SNMP4J mailing list >>[email protected] >>http://lists.agentpp.org/mailman/listinfo/snmp4j
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