Re: [javagroups-users] Find a member through different routes

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Thanks a lot,

Then in 2.4 (we need a java 1.4 compatibility), it is the only solution ?

I will try it as soon as possible :)

Pierre

-----Message d'origine-----
De : Bela Ban [mailto:be...@ya...]
Envoyé : 21 May 2008 15:19
À : BESSON-DEBLON, Pierre (SOGETI HIGH TECH)
Cc : jav...@li...
Objet : Re: [javagroups-users] Find a member through different routes

even better: I'd let the OS handle this, and create a logical NIC (e.g. 
bond0), and then set bind_addr="IP addr of bond0>".

This could be done through IP bonding on Linux, Multipathing on Solaris, 
or similarly on Windows

BESSON-DEBLON, Pierre (SOGETI HIGH TECH) wrote:
> Hi,
>
> We try to initialize a 2 members group with on a network similar to this
>   ------------                    ------------ 
>   | member A | eth1 ------- eth1  | member B | 
>   ------------                    ------------ 
>     eth0                             eth0
>      |                                 |
>      |                                 |      
> =============================================== network
>
>
> We want to use eth1 interface as UDP/bind_addr to be robust on routing service crash.
>
> All is working fine except when direct link is broken (direct cable unplugged).
> On startup, it initializes 2 single member groups. 
>
> Why members cannot see each other ?
> (I'm sure ttl is high enough for a route through eth0)
>
> Thanks in advance,
>
>
> Pierre
>
> PS: We are using jgroups 2.4
> Here is the jgroups configuration :
> <config>
>     <UDP 
>          bind_addr="<eth1 IP>"
>          ip_ttl="12" 
>          mcast_port="65200" 
>          mcast_addr="228.8.8.9"
>          tos="16"
>          ucast_recv_buf_size="20000000"
>          ucast_send_buf_size="640000"
>          mcast_recv_buf_size="25000000" 
>          mcast_send_buf_size="640000" 
>          loopback="false"
>          discard_incompatible_packets="true"
>          max_bundle_size="64000"
>          max_bundle_timeout="30"
>          use_incoming_packet_handler="true" 
>          use_outgoing_packet_handler="false" 
>          bind_port="65201"
>          down_thread="false" up_thread="false"
>          enable_bundling="true"
>          diagnostics_port="65202"/>
>     <PING timeout="2000"
>           down_thread="false" up_thread="false" num_initial_members="3"/>
>     <MERGE2 max_interval="10000"
>             down_thread="false" up_thread="false" min_interval="5000"/>
>     <FD timeout="2500" max_tries="12" shun="false"/>
>     <FD_SOCK down_thread="false" up_thread="false" start_port="65203"/>
>     <!--FD_ALL intervall="3000" timeout="10000"/-->
>
>     <!--VERIFY_SUSPECT timeout="1500" down_thread="false"/-->
>     <pbcast.NAKACK max_xmit_size="60000"
>                    use_mcast_xmit="false" gc_lag="0"
>                    retransmit_timeout="100,200,300,600,1200,2400,4800"
>                    down_thread="false" up_thread="false"
>                    discard_delivered_msgs="true"/>
>     <UNICAST timeout="300,600,1200,2400,3600"
>              down_thread="false" up_thread="false"/>
>     <pbcast.STABLE stability_delay="1000" desired_avg_gossip="50000" 
>                    down_thread="false" up_thread="false"
>                    max_bytes="400000"/>
>     <VIEW_SYNC avg_send_interval="60000" down_thread="false" up_thread="false" />
>     <pbcast.GMS print_local_addr="true" join_timeout="3000" 
>                 down_thread="false" up_thread="false"
>                 join_retry_timeout="2000" shun="true" handle_concurrent_startup="true" />
>     <SEQUENCER down_thread="false" up_thread="false" />
>     <FC max_credits="2000000" down_thread="false" up_thread="false"
>            min_threshold="0.10"/>
>     <!-- FRAG2 frag_size="60000" down_thread="false" up_thread="true"/ -->
>     <!-- pbcast.STATE_TRANSFER down_thread="false" up_thread="false"/-->
> </config>
>
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-- 
Bela Ban
Lead JGroups / Clustering Team
JBoss - a division of Red Hat

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