[infinispan-issues] [JBoss JIRA] Commented: (ISPN-611) Memcached issues with ruby client

[Galder Zamarreno (JIRA)]

    [ https://jira.jboss.org/browse/ISPN-611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12546086#action_12546086 ] 

Galder Zamarreno commented on ISPN-611:
---------------------------------------

I think we have a problem here. I've just managed to replicate the issue with a simple ruby client script and the client library mentioned:

MemCache::MemCacheError: unexpected response "VALUE galder 0 5 \r\n"
    /Library/Ruby/Gems/1.8/gems/memcache-client-1.8.5/lib/memcache.rb:754:in `cache_get'

This is coming from this part of the script:

      unless keyline =~ /(\d+)\r/ then
        server.close
        raise MemCacheError, "unexpected response #{keyline.inspect}"
      end

I don't understand the unless condition very well, but based on docu on the script, it's expecting:

      keyline = socket.gets # "VALUE <key> <flags> <bytes>\r\n"

So, after bytes (which in the example is 5), I think it doesn't expect a space character.

Now, the problem is that if I remove the space, the Memcached unit tests based on Spymemcached fail :(, but the ruby script works fine.

I need to think through on what to do here. I'll check whether there's a more recent Spymemcached version. 

> Memcached issues with ruby client
> ---------------------------------
>
>                 Key: ISPN-611
>                 URL: https://jira.jboss.org/browse/ISPN-611
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Cache Server
>    Affects Versions: 4.1.0.CR3
>         Environment: Centos 5.5, Java 6u21, Ruby on Rails 2.3.2, Ruby Enterprise Edition 20090520
>            Reporter: Tomaz Cerar
>            Assignee: Galder Zamarreno
>             Fix For: 4.1.0.Final
>
>         Attachments: infinispan_memcached.log
>
>
> We have ROR application that uses MemCached for distributed cache.
> As we have many issues with MemCached and its "clustering" we are considering to move to Infinispan for many goodies it provides.
> The problem is that some commands that are issued against memcahe infinispan server die with error.
> in ruby application we get errror:
>  ERROR -- : MemCacheError (unexpected response "VALUE views/semantic/1 0 674 \r\n"): unexpected response "VALUE views/semantic/1 0 674 \r\n"
> and in infinispan log I can find:
> 2010-08-19 12:21:37,330 ERROR [org.infinispan.server.core.AbstractProtocolDecoder$] (MemcachedServerWorker-1-7) Exception reported
> java.nio.channels.ClosedChannelException
> I will try to provide sample code to demonstrate error.

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