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Re: [mosquitto-dev] broker segfaults
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Hi Jacob,
It's possible! But pretty unlikely. This bug would manifest itself when:
1. A message with QoS>0 was published by a client that didn't have
permission to publish - either through topic ACL or payload size
limitations.
2. The client disconnected before the broker could complete the
message flow (i.e. PUBACK/PUBREC/...)
3. The persistence file was written before the client logged in again
Cheers,
Roger
On Tue, Jun 7, 2016 at 9:53 AM, Jacob Lynn <abeboparebop@xxxxxxxxx> wrote:
> Hi all,
>
> I noticed the following note in the changelog for v1.4.9:
>
> "Fix possible rare crash when writing out persistence file and a client has
> incomplete messages inflight that it has been denied the right to publish."
>
> I've been experiencing mysterious segfaults with the mosquitto broker that
> might be associated with this bug. Might this fixed bug have been causing
> segfaults?
>
> The broker is under a fairly consistent load of ~100-300 messages / minute,
> ~20-40 kB / minute up and down. Running v1.4.8 on Ubuntu 14.04.3.
>
> Best,
> Jacob
>
>
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