Hi Guys,

 Me again... I've prepared a self contained case of what I'm trying to do...

https://github.com/porcelli/incubator-helix/blob/master/recipes/distributed-lock-manager/src/main/java/org/apache/helix/lockmanager/LockManagerDemo.java#L80

 Here is how I define the criteria and message: 
https://github.com/porcelli/incubator-helix/blob/master/recipes/distributed-lock-manager/src/main/java/org/apache/helix/lockmanager/LockProcess.java#L80

 And here the Message handler: 
https://github.com/porcelli/incubator-helix/blob/master/recipes/distributed-lock-manager/src/main/java/org/apache/helix/lockmanager/LockProcess.java#L151

 Hope this can help you help me ;)

Cheers,
---
Alexandre Porcelli
[email protected]


On May 2, 2013, at 3:54 PM, Alexandre Porcelli <[email protected]> wrote:

> Hi Shi and Kishore,
> 
>  I'm using 0.6.0-incubating, and I've tried to set the DataSource, but it 
> didn't work (again: probably i'm doing something wrong). Just for curiosity 
> I've tried on 0.6.1-incubating-SNAPSHOT and got the same.
>  
> What really happens is the Message seems to be sent (no error, no timeout...) 
> but the participants doesn't get any message.
> 
>  Again, thank you all for your support.
> 
> Cheers,
> ---
> Alexandre Porcelli
> [email protected]
> 
> 
> 
> On May 2, 2013, at 3:26 PM, Shi Lu <[email protected]> wrote:
> 
>> Hi Alexandre:
>> 
>> For the messaging part, in the messaging sending criteria, it can specify 
>> the data source from which the message recipient are selected, it can be 
>> EXTERNALVIEW or IDEALSTATE.. By default the data source is ExternalView. In 
>> case an instance is disabled, it will not show up in external view and no 
>> messages will be sent. If in the recipient criteria the data source is set 
>> to IDEALSTATE the message should go through, like
>> 
>> recipientCriteria.setDataSource(DataSource.IDEALSTATES);
>> 
>> Cheers,
>> -Shi
>> 
>> 
>> On Thu, May 2, 2013 at 10:35 AM, Alexandre Porcelli <[email protected]> 
>> wrote:
>> Hi Kishore,
>> 
>>  Thank or your quick answer, Vinayak sugestion partly worked for me... I 
>> said `partly` because the messaging still not working as expected (note: 
>> probably I'm doing something wrong here!). Here are some snippets of my own 
>> code: http://pastebin.com/SGfVJrUD
>> 
>>  Regarding contribution... today we're in a rush to release, but after it... 
>> I plan start to work on Infinispan backend ;)
>> 
>> Cheers,
>> ---
>> Alexandre Porcelli
>> [email protected]
>> 
>> 
>> On May 2, 2013, at 1:18 PM, kishore g <[email protected]> wrote:
>> 
>>> Hi Alexandre,
>>> 
>>> Glad you like Helix. 
>>> 
>>> 1. See if vinayaks suggestion works for you. I have couple of questions 
>>> what is the execution mode, you can get this from the idealstate MODE 
>>> property. If its AUTO you can change the preference list.
>>> But I am surprised that after disabling the instance user defined messages 
>>> cannot happen. That was not intended in the design, so it might be a bug. 
>>> Can you give more information on how you are trying to send the message and 
>>> what is the criteria set to compute the recipients.
>>> 
>>> 2. Yes, Helix architecture is not tied to zookeeper. We are mainly using it 
>>> for storing the cluster state. We had another simple file based manager 
>>> earlier but we removed it in favor of running zookeeper locally in dev 
>>> mode. It would be great to have this contribution. There are quite a few 
>>> use cases that can benefit from a non zk implementation. 
>>> 
>>> thanks,
>>> Kishore G
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> On Thu, May 2, 2013 at 9:06 AM, Vinayak Borkar <[email protected]> wrote:
>>> 
>>>   1. I'm using a LeaderStandby in order to build a single global lock on my 
>>> cluster, it works as expected.. but in order to release the lock I have to 
>>> put the current leader in standby... I could achieve this by disabling the 
>>> current instance. It works, but doing this I loose (at least seems to be) 
>>> the ability to send/receive user defined messages. I'd like to know if it's 
>>> possible to, via an api call, force a transition from Leader to Standby 
>>> without disable an instance.
>>> 
>>> I am a newbie to Helix too and I had a similar question a few days ago. 
>>> Have you looked into disabling the resource by using the disablePartition() 
>>> call in HelixAdmin using a partition number of 0? This should disable just 
>>> the resource without impacting the instance.
>>> 
>>> Vinayak
>>> 
>>> 
>>> 
>>>   2. I've been taking a quick look on Helix codebase, more specific on 
>>> ZooKeeper usage. Seems that you're using ZooKeeper as a default 
>>> implementation, but Helix architecture is not tied to it, right? I'm asking 
>>> this, because I'm interested to implement (in a near future) a different 
>>> backend (Infinispan).
>>> 
>>> That's it for now...  thanks in advance.
>>> 
>>> Cheers,
>>> ---
>>> Alexandre Porcelli
>>> [email protected]
>>> 
>>> 
>>> 
>> 
>> 
> 

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