I have updated the FS for this feature. The updated FS is at https://cwiki.apache.org/confluence/display/CLOUDSTACK/FS+for+Integrating+CS+alerts+via+SNMP+to+external+management+system It will be using log4j Appender framework.
Thanks, Anshul On 18/01/13 10:51, Anshul Gangwar wrote: > My implementation of log4j appender will require changes in > log4j-cloud.xml file and addition/modification of some LOG statements in > CloudStack. Which I suppose is not making it tightly coupled with CloudStack. > > Thanks, > Anshul > > > On 17/01/13 23:38, Ram Ganesh wrote: >> Anshul, >> >> If you implement your own SNMPlog4j appender then again it will not be >> tightly coupled with CloudStack? Can you confirm that? >> >> Thanks, >> RamG >> >>> -----Original Message----- >>> From: Anshul Gangwar [mailto:anshul.gang...@citrix.com] >>> Sent: 17 January 2013 16:58 >>> To: cloudstack-dev@incubator.apache.org >>> Subject: Re: [Discuss] SNMP Alerts support in CloudStack >>> >>> Alex, >>> >>> I have gone through the snmplog4jappender. As per my understanding >>> there >>> is no way to send traps to multiple SNMP Managers. One other thing >>> which >>> it is lacking is defining different OIDs for different kind of alerts. >>> Even in some way we are able to achieve above things using the library >>> then we have to make many changes in library. As per my understanding >>> it >>> will be better to write our own SNMP log4j appender on similar lines >>> of >>> this library. That will be less tedious work then using this library. >>> >>> The default implementations( some implementations given in that >>> library) >>> of library is using incompatible license libraries. >>> Three default implemetations are >>> JoeSNMPTrapSender uses opennms library which has GPL License >>> http://www.opennms.org/wiki/Commercial_OpenNMS >>> WengsoftSNMPTrapSender uses library which has COPYRIGHT (c) 1999 by >>> WENG-SOFT Inc. Brosard QC CA >>> NetSnmpCommandLineTrapSender uses library which has >>> http://www.net-snmp.org/about/license.html license >>> >>> >>> Thanks, >>> Anshul >>> >>> On 16/01/13 02:32, Alex Huang wrote: >>>> In that case, why not just use snmplog4jappender? >>>> >>>> http://code.google.com/p/log4j-snmp-trap-appender/ >>>> >>>> --Alex >>>> >>>>> -----Original Message----- >>>>> From: Murali Reddy [mailto:murali.re...@citrix.com] >>>>> Sent: Tuesday, January 15, 2013 2:36 AM >>>>> To: cloudstack-dev@incubator.apache.org >>>>> Subject: Re: [Discuss] SNMP Alerts support in CloudStack >>>>> >>>>> On 15/01/13 12:03 PM, "Anshul Gangwar" <anshul.gang...@citrix.com> >>>>> wrote: >>>>> >>>>>> My comments inline.. >>>>>> >>>>>> On 14/01/13 22:52, Alex Huang wrote: >>>>>>> Anshul, >>>>>>> >>>>>>> I had assumed that if you were doing this based on Murali's event >>>>>>> framework, it would not be architected on an adapter in the alert >>>>>>> manager but as a subscriber to his event framework. Has this been >>>>>>> discussed? If so, why not subscribe to event framework? >>>>>> Murali, >>>>>> Can you reply for this. >>>>> Alex, >>>>> >>>>> From what Anshul is proposing, I see that, requirements is to >>> generate a >>>>> SNMP trap for ALL of the alerts that CloudStack generates today, and >>> there >>>>> is no need for selectively subscribing to subset of alerts. Taking >>>>> dependency on the event framework would mean that this feature will >>>>> require a MOM broker for no additional benefit at least in this >>> context of >>>>> proposal. IMO, its seems good enough to just implement it as adapter >>> to >>>>> existing AlertManager and generate SNMP trap at source of alert >>> generation. >>>>>>> Also, I like to have the following asserted in the FS. >>>>>>> >>>>>>> - It is a separate project from CloudStack core >>>>>> Alex, >>>>>> >>>>>> I am developing this feature as plugin, so it will be separate >>> project >>>>> >from CloudStack core >>>>>>> - It only depends on cloud-utils and cloud-api jars for compile. >>>>>> I am making it sure that code does not use any class from other >>> jars >>>>>> apart from cloud-utils and cloud-api jars. >>>>>> >>>>>> I will update the FS with this info >>>>>> >>>>>> >>>>>>> Please confirm them. >>>>>>> >>>>>>> --Alex >>>>>> Thanks, >>>>>> Anshul >>>>>>>> -----Original Message----- >>>>>>>> From: Anshul Gangwar [mailto:anshul.gang...@citrix.com] >>>>>>>> Sent: Friday, January 04, 2013 12:57 AM >>>>>>>> To: cloudstack-dev@incubator.apache.org >>>>>>>> Subject: Re: [Discuss] SNMP Alerts support in CloudStack >>>>>>>> >>>>>>>> I have created the initial draft of FS here >>>>>>>> >>> https://cwiki.apache.org/confluence/display/CLOUDSTACK/FS+for+Integrati >>>>>>>> ng+CS+alerts+via+SNMP+to+external+management+system . I will >>>>> keep >>>>>>>> updating the FS based on comments and suggestions. >>>>>>>> >>>>>>>> Thanks, >>>>>>>> Anshul >>>>>>>> >>>>>>>> On 02/01/13 12:21, Anshul Gangwar wrote: >>>>>>>> >>>>>>>> On 18/12/12 20:19, David Nalley wrote: >>>>>>>> >>>>>>>> >>>>>>>> On Tue, Dec 18, 2012 at 6:12 AM, Anshul Gangwar >>>>>>>> <anshul.gang...@citrix.com><mailto:anshul.gang...@citrix.com> >>>>> wrote: >>>>>>>> Hi, >>>>>>>> Currently CloudStack shows alerts on dashboard and can >>> send >>>>>>>> email >>>>>>>> alerts. With this feature it will be able to send SNMP alerts to >>>>>>>> configured external SNMP Managers. Currently I am planning to >>> send >>>>>>>> SNMP >>>>>>>> traps for the alerts which are supported in CloudStack 4.0. I am >>>>>>>> planning to use snmp4j library available under Apache License to >>>>>>>> implement this feature. >>>>>>>> >>>>>>>> >>>>>>>> Fascinating - I am looking forward to seeing this! >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> - Currently planning to support up to 20 SNMP managers >>>>>>>> >>>>>>>> >>>>>>>> This seems arbitrary. Why 20? >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> - Version 1 and 2 will be supported >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> Why not v3 as well? SNMPv1 is practically deprecated, so why >>> bother >>>>>>>> with v1? v2 is a nice middle ground - v3 is where everyone wishes >>> to >>>>>>>> be if they could start from scratch. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> - We need a unique SNMP OID for CloudStack. We need to >>>>>>>> register with >>>>>>>> IANA. Is there an established process in Apache to follow and get >>> one? >>>>>>>> I'll be happy to figure out how this gets done. - Actually some >>> quick >>>>>>>> googling shows that the ASF already has an enterprise OID - and >>> one of >>>>>>>> our mentors has documented that here: >>>>>>>> https://cwiki.apache.org/DIRxPMGT/oid-assignment-scheme.html >>>>>>>> I will follow up with Alex and see if we can get an assignment. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> Hi David, >>>>>>>> Is there any OID which I can use to start development. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> So your idea here seems like it is targeting just sending traps, >>> but >>>>>>>> I'm far more interested long-term in being able to query the SNMP >>>>>>>> daemon (and there likely will already be one on the host); so as >>> you >>>>>>>> are designing the MIB please do plan ahead for such things. The >>> page >>>>>>>> above is a good starting point around MIB design. >>>>>>>> >>>>>>>> If you need help around this, I am happy to lend what little I >>> know >>>>>>>> about the subject of SNMP, or connect you with experts in the >>> field. >>>>>>>> --David >>>>>>>> >>>>>>>> >>>>>>>> Thanks, >>>>>>>> Anshul
