Hi!

Incomplete means that chunked gelf messages transported with UDP were not
received properly.
Gelf supports chunking larger messages into a series of UDP datagrams which
then are reassembled after all parts have been received.
This is to overcome the effective size limit of UDP datagrams but when your
network has a tendency to lose UDP datagrams then this means you lose
messages.
In most scenarios you never notice but in the case of chunked gelf you do.
The window in which the datagrams have to show up is 5 seconds I believe.
Check the errors on your network devices to look for unexpected packet loss.
If possible you might want to switch to gelf over TCP.

Best,
Kay
On Mar 24, 2014 5:43 PM, "Robert Blumen" <[email protected]>
wrote:

> Graylog2 is classifying 100% of incoming GELF messages as "incomplete".
>
> I tried to post this earlier but I believe that I failed.  I apologize in
> advance if this gets posted twice.
>
> Using:
>
>    - mongod 2.4.9
>    - elasticsearch 0.90.10
>    - graylog server 0.20.1
>    - graylog web 0.20.1
>    - from java, me.moocar:logback-gelf:jar:0.10p2
>
> Running a jetty web server on one node, sending GELF messages to GL at
> 12202 on a different node.
>
> On GL I have a GELF UDP global input listening on 12202
>
>    - Under "show metrics" the counts of total messages and incomplete
>    messages in the input were showing all messages being classified as
>    incomplete.
>    - I upgraded the logging on the server node's Graylog2 subsystem to
>    "trace".  The log showed a huge number of "Incomplete message" errors.
>
> The log messages were coming from GELFProcessor.java:
>
>
>
>
> *    72          if (lm == null || !lm.isComplete()) {    73
> server.metrics().meter(name(metricName, "incompleteMessages")).mark();
> 74              LOG.debug("Skipping incomplete message.");
> 75              return;    76          }*
>
> I need some  help in determing why the messages are being classified as
> incomplete.  If the system provided a bit more information along those
> lines that would be helpful.
>
> Robert
>
> --
>
>
> Robert Blumen
>
> [email protected]
>
> symphonycommerce.com
>
>
>
> 363 Clementina St.
>
> San Francisco, CA 94103
>
> (415) 806-8389
>
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