[infinispan-dev] JGroups 2.8 and Infinispan

[Mircea Markus]

Bela Ban wrote:
> For you information: in 2.8, we're attempting to find out whether 
> you're running an IPv6-only stack and accordingly provide a default 
> IPv6 multicast address. The opposite of course for IPv4-only stacks. 
> The problematic case is duplex stacks, which is unfortunately the 
> majority of all setups...
Not sure that would work for parallel tests harness, as it parses the 
xml confing and changes the IP address in order to assure different 
clusters won't see each others. So if  the address defaults to same 
value for all threads in the suite, clusters will conflict.
>
> In other words, even if you forget the system property above, you 
> should be fine in 2.8... hopefully... :-)
>
> Mircea Markus wrote:
>> The issue was the one pointed out.
>> Cause was that "java.net.preferIpv4Stack" does not get propagated  
>> from  property *parent\pom.xml* to the JVM running the tests.
>> This is rather strange, as all other property do get propagated 
>> correctly. Anyone encountered anything similar before?
>> The fix/hack was to enforce "java.net.preferIpv4Stack" 
>> programatical;y, in an @BeforeSuite. This sorted the problem.
>>
>>
>>
>> Bela Ban wrote:
>>> What stack were you running on (IPv4 or IPv6) ? If it is IPv6 
>>> *only*, then 230.8.8.8 is *not* a valid multicast address !
>>>
>>> If you have a dual stack, use -Djava.net.preferIpv4Stack=true to get 
>>> IPv4 (then the mcast_addr is correct) or 
>>> -Djava.net.preferIPv6Addresses=true and change the mcast_addr to a 
>>> valid IPv6 address
>>>
>>> Mircea Markus wrote:
>>>> It doesn't work on linux:
>>>> 2009-06-11 11:28:40,026 WARN  [org.jgroups.protocols.MPING] 
>>>> (pool-1-thread-4) could not bind to /228.10.10.15 (IPv4 address); 
>>>> make sure your mcast_addr is of the same type as the IP stack (IPv4 
>>>> or IPv6).
>>>> Will ignore mcast_addr, but this may lead to cross talking (see 
>>>> http://www.jboss.com/wiki/Edit.jsp?page=CrossTalking for details).
>>>> Exception was: java.net.BindException: Cannot assign requested address
>>>>
>>>> Here is my config:
>>>>   <MPING bind_addr="127.0.0.1" break_on_coord_rsp="true"
>>>>          mcast_addr="230.8.8.8" mcast_port="17890" ip_ttl="2"
>>>>          num_initial_members="3"/>
>>>>
>>>> Any ideas?
>>>
>>
>