Re: Call for roadmap features for future releases

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On Fri, May 11, 2012 at 12:18 AM, Jan Friesse <jfriesse@xxxxxxxxxx> wrote:
> Andrew Beekhof napsal(a):
>
>> On Fri, Apr 13, 2012 at 7:07 PM, Jan Friesse<jfriesse@xxxxxxxxxx>  wrote:
>>>
>>> I invite all of our contributors to help define the X.Y roadmap of
>>> Corosync.
>>>  Please submit your ideas on this list.  Some
>>> examples of suggested ideas have been things like "remove binding to
>>> localhost", "don't rely on multicast loop facility" or "include user data
>>> in
>>> cpg join/callbacks".
>>>
>>> Please submit your ideas by May 11, 2012 (Friday).
>>
>>
>> Could we do something about the logging?
>>
>
> Andrew,
> I agree with you that delivered msg is really not very interesting in most
> cases.
>
> Do you mean something like DEBUG2 (in libqb there is LOG_TRACE with this
> meaning)?

Switching it to equivalent of LOG_TRACE sounds like a great idea to me.

> Honza
>
>
>> I have a couple of bugs filed already but in addition it would be nice
>> to have a usable debug mode.
>> The problem right now is that when enabled the logs fill up with
>>
>> Apr 15 18:42:29 pcmk-1 corosync[4913]:   [TOTEM ] mcasted message
>> added to pending queue
>> Apr 15 18:42:29 pcmk-1 corosync[4913]:   [TOTEM ] Delivering da to dc
>> Apr 15 18:42:29 pcmk-1 corosync[4913]:   [TOTEM ] Delivering MCAST
>> message with seq db to pending delivery queue
>> Apr 15 18:42:29 pcmk-1 corosync[4913]:   [TOTEM ] Delivering MCAST
>> message with seq dc to pending delivery queue
>> Apr 15 18:42:29 pcmk-1 corosync[4913]:   [TOTEM ] Received
>> ringid(192.168.122.101:6696) seq db
>> Apr 15 18:42:29 pcmk-1 corosync[4913]:   [TOTEM ] Received
>> ringid(192.168.122.101:6696) seq dc
>> Apr 15 18:42:29 pcmk-1 corosync[4913]:   [TOTEM ] Received
>> ringid(192.168.122.101:6696) seq dd
>> Apr 15 18:42:29 pcmk-1 corosync[4913]:   [TOTEM ] Delivering dc to dd
>> Apr 15 18:42:29 pcmk-1 corosync[4913]:   [TOTEM ] Delivering MCAST
>> message with seq dd to pending delivery queue
>> Apr 15 18:42:29 pcmk-1 corosync[4913]:   [TOTEM ] Received
>> ringid(192.168.122.101:6696) seq de
>> Apr 15 18:42:29 pcmk-1 corosync[4913]:   [TOTEM ] Delivering dd to de
>>
>> which redundantly redundant, not terribly informative and so verbose
>> that syslog ends up dropping most of corosync's logs anyway:
>>
>> Apr 15 18:42:29 pcmk-1 rsyslogd-2177: imuxsock lost 644 messages from
>> pid 4913 due to rate-limiting
>> Apr 15 18:42:35 pcmk-1 rsyslogd-2177: imuxsock lost 664 messages from
>> pid 4913 due to rate-limiting
>>
>> 600+ messages being thrown away at a time is pretty bad.
>> Adding in the messages that /did/ make it to the logs between the two
>> times, corosync is pumping out messages at more than 390 per _second_.
>
>
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