[jgroups-dev] What's the most optimized configuration for version 2.8.1.0

Hello.

I'm Kuwon. I have a question about JGroups's configuration for optimization.

We are planning to upgrade version 2.8.1.0 for our production environment.

I found the configuration of tcp.xml in the release of 2.8.1.0.

Is that configuration the most optimized one for performance and stability?

Because your default configuration file includes many part of
configuration(Thread Pool, OOB,  Protocol Stacks).

I copied full text of tcp.xml from version 2.8.1.0.


<!--
    TCP based stack, with flow control and message bundling. This is usually
used when IP
    multicasting cannot be used in a network, e.g. because it is disabled
(routers discard multicast).
    Note that TCP.bind_addr and TCPPING.initial_hosts should be set,
possibly via system properties, e.g.
    -Djgroups.bind_addr=192.168.5.2 and
-Djgroups.tcpping.initial_hosts=192.168.5.2[7800]
    author: Bela Ban
    version: $Id: tcp.xml,v 1.40 2009/12/18 09:28:30 belaban Exp $
-->
<config xmlns="urn:org:jgroups"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="urn:org:jgroups
http://www.jgroups.org/schema/JGroups-2.8.xsd">
    <TCP bind_port="7800"
         loopback="true"
         recv_buf_size="${tcp.recv_buf_size:20M}"
         send_buf_size="${tcp.send_buf_size:640K}"
         discard_incompatible_packets="true"
         max_bundle_size="64K"
         max_bundle_timeout="30"
         enable_bundling="true"
         use_send_queues="true"
         sock_conn_timeout="300"
         timer.num_threads="4"

         thread_pool.enabled="true"
         thread_pool.min_threads="1"
         thread_pool.max_threads="10"
         thread_pool.keep_alive_time="5000"
         thread_pool.queue_enabled="false"
         thread_pool.queue_max_size="100"
         thread_pool.rejection_policy="discard"

         oob_thread_pool.enabled="true"
         oob_thread_pool.min_threads="1"
         oob_thread_pool.max_threads="8"
         oob_thread_pool.keep_alive_time="5000"
         oob_thread_pool.queue_enabled="false"
         oob_thread_pool.queue_max_size="100"
         oob_thread_pool.rejection_policy="discard"/>

    <TCPPING timeout="3000"

initial_hosts="${jgroups.tcpping.initial_hosts:100.5.48.43[7800]}"
             port_range="2"
             num_initial_members="1"/>
    <MERGE2  min_interval="10000"
             max_interval="30000"/>
    <FD_SOCK/>
    <FD timeout="3000" max_tries="3" />
    <VERIFY_SUSPECT timeout="1500"  />
    <BARRIER />
    <pbcast.NAKACK
                   use_mcast_xmit="false" gc_lag="0"
                   retransmit_timeout="300,600,1200,2400,4800"
                   discard_delivered_msgs="true"/>
    <UNICAST timeout="300,600,1200" />
    <pbcast.STABLE stability_delay="1000" desired_avg_gossip="50000"
                   max_bytes="400K"/>
    <pbcast.GMS print_local_addr="true" join_timeout="3000"
                view_bundling="true"/>
    <FC max_credits="2M"
        min_threshold="0.10"/>
    <FRAG2 frag_size="60K"  />
    <pbcast.STREAMING_STATE_TRANSFER/>
    <!-- <pbcast.STATE_TRANSFER/> -->
</config>

Thanks.

-- 
Blessings.
Kuwon Kang
............................................................
IT specialist and architect.
Java technology engineer.
JavaEE architect/developer.
Spring Framework specialist.
Solution developer.

- Model Driven Architecture.
- Test Driven Development.
- Test Driven Software Design.
- Refactoring Oriented Development.
- Practical design and modeling.
- Robust  Software Design and Engineering.
............................................................
Prever,Inc.
 http://www.prever.co.kr/
Blog:
 http://josh.prever.co.kr/
............................................................

God's love is eternal and leads us to live for heaven and His glory

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