[infinispan-issues] [JBoss JIRA] Created: (ISPN-781) Memcached pipelined delete messages wrongly processed

[Galder Zamarreño (JIRA)]

Memcached pipelined delete messages wrongly processed
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                 Key: ISPN-781
                 URL: https://jira.jboss.org/browse/ISPN-781
             Project: Infinispan
          Issue Type: Bug
          Components: Cache Server
    Affects Versions: 4.2.0.BETA1, 4.1.0.Final
            Reporter: Galder Zamarreño
            Assignee: Galder Zamarreño
             Fix For: 4.2.0.CR1, 4.2.0.Final


The code incorrectly detects the optional, unsupported, noreply parameter.

>From Michal:

"The text protocol processing logic regarding delete command doesn't allow for command pipelining: 

$ echo -e "delete a\r\ndelete a\r" | nc localhost 11211 
CLIENT_ERROR org.infinispan.server.core.ServerException: java.io.StreamCorruptedException: Unable to parse noreply optional argument 

the logic is as follows 

1. read header "delete " 
2. read key "a\r\n" 
3. read parameters READS ERRONEOUSLY NEXT COMMAND: "delete a\r\n" 

when sending one command only this is ok 
$ echo -e "delete a\r" | nc localhost 11211 
NOT_FOUND 

because read parameters in step 3 just returns line "" 
but makes trouble when delete command appears in the middle of the command input stream."

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