[infinispan-issues] [JBoss JIRA] (ISPN-8166) Writes via memcached server cause UnknownOperationException

[Tristan Tarrant (JIRA)]

Tristan Tarrant created ISPN-8166:
-------------------------------------

             Summary: Writes via memcached server cause UnknownOperationException
                 Key: ISPN-8166
                 URL: https://issues.jboss.org/browse/ISPN-8166
             Project: Infinispan
          Issue Type: Bug
          Components: Server
    Affects Versions: 8.2.6.Final, 9.0.1.Final, 9.1.0.Final
         Environment: Ubuntu 16.04.1 LTS
openjdk version "1.8.0_91"
OpenJDK Runtime Environment (build 1.8.0_91-8u91-b14-3ubuntu1~16.04.1-b14)
OpenJDK 64-Bit Server VM (build 25.91-b14, mixed mode)

The bug can be reproduced with OS X and other Linux distributions as well
            Reporter: Wolfram Huesken
            Assignee: Tristan Tarrant
             Fix For: 9.0.4.Final, 9.1.1.Final, 8.2.9.Final


We're using the stable server version (http://infinispan.org/download/) as a memcached replacement in a PHP application. When we're writing keys (or values) with different sizes via memcached, we encounter the following exception:

{{17:14:42,531 ERROR [org.infinispan.server.memcached.RequestResolver$] (MemcachedServerWorker-8-1) ISPN005003: Exception reported: org.infinispan.server.memcached.UnknownOperationException: Unknown operation: }}

When the exception occurs, the data is not stored. 

We're currently closing and reopening the connection after an error like that occurred, but it's slowing down the data transfer quite a lot.

The bug is not only related to the server, but happens with the embedded version of infinispan, too.



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