Bug 1365828 - mongo log spam

[Andrew Wilkins]

On Tue, Sep 9, 2014 at 4:14 PM, John Meinel <john at arbash-meinel.com> wrote:

> I don't think these are from authentication between mongo instances.
>

Agreed, looks like the machine-0 jujud connecting over and over again.
Perhaps the agent is unhappy and is bouncing.


> This looks more like a Mongo 2.4 vs 2.6 difference. We added stuff like
> "clusterAdmin" to priviledges that we give because of 2.6 support (I
> thought).. But if 2.4 doesn't know anything about "clusterAdmin" then
> whenever we log in, it goes through the list of roles and noisily ignores
> some of them.
>

clusterAdmin is for replica sets, and is applicable to 2.4. In particular,
in grants replSetInitiate. I went through and removed the extraneous stuff
when I did the 2.6 support updates.
See http://docs.mongodb.org/v2.4/reference/user-privileges/

Presumably the real fix is to only give roles that are 2.6 specific when we
> know we're running against 2.6 ?
>
> (I could be wrong on this, but I thought we had earlier bugs that we
> couldn't do the cluster reconfiguration on 2.6 because we had to add the
> "clusterAdmin" role.)
>
> John
> =:->
>
>
> On Tue, Sep 9, 2014 at 11:22 AM, Ian Booth <ian.booth at canonical.com>
> wrote:
>
>> https://bugs.launchpad.net/juju-core/+bug/1365828
>>
>> Hi mongo experts
>>
>> Mongo is filling up syslog with lots of spam.
>> eg, as reported by a customer, https://clbin.com/XZ63i
>>
>> I have reduced this a little by tweaking the roles used to log in to the
>> "juju"
>> and "presence" databases, so the warnings are gone. But the spam remains.
>>
>> It seems to me these Mongo bugs might be relevant:
>>
>> https://jira.mongodb.org/browse/SERVER-5847
>> https://jira.mongodb.org/browse/SERVER-5952
>>
>> I can't see from a brief look what Juju might be doing to directly cause
>> the
>> spam, nor what we can do to remove it.
>>
>> Does anyone with more Mongo knowledge have any insight as to what we can
>> do to
>> address this problem?
>>
>>
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>
>
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