[jbosscache-dev] Default JGroups configs

Bela Ban bela at jboss.com
Thu Oct 25 03:34:58 EDT 2007


   1.   I'd actually return "udp.xml", or at least a ref to some XML
      file that ships with JGroups, rather than hard-code that into a string
   2. If you use STREAMING_STATE_TRANSFER, then this requires the user
      to implement the right callbacks, which I don't think many folks
      do. IIRC, Vladimir uses the byte[] buffer methods if that's not
      done, but I might be wrong


Manik Surtani wrote:
> Any idea why the default configs still are:
>
>  public String getDefaultClusterConfig()
>    {
>       return "UDP(mcast_addr=224.0.0.36;mcast_port=55566;ip_ttl=32;" +
>               "mcast_send_buf_size=150000;mcast_recv_buf_size=80000):" +
>               "PING(timeout=1000;num_initial_members=2):" +
>               "MERGE2(min_interval=5000;max_interval=10000):" +
>               "FD_SOCK:" +
>               "VERIFY_SUSPECT(timeout=1500):" +
>               
> "pbcast.NAKACK(gc_lag=50;retransmit_timeout=600,1200,2400,4800):" +
>               "UNICAST(timeout=600,1200,2400,4800):" +
>               "pbcast.STABLE(desired_avg_gossip=20000):" +
>               "FRAG(frag_size=8192):" +
>               "pbcast.GMS(join_timeout=5000;join_retry_timeout=2000;" +
>               "shun=false;print_local_addr=true):" +
>               "pbcast.STATE_TRANSFER";
>    }
>
> instead of using STREAMING_STATE_TRANSFER and FLUSH instead of 
> STATE_TRANSFER?  Any good reasons not to change it?
>
>

-- 
Bela Ban
Lead JGroups / Clustering Team
JBoss - a division of Red Hat



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