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From: "Till Westmann" <tillw@apache.org>
To: dev@asterixdb.incubator.apache.org
Subject: Re: debugging RecoveryIT
Date: Mon, 09 Nov 2015 11:44:19 -0800
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Thanks. I’ve added both original approaches to the Wiki [1].
Please add other tips/hints/practices that could be useful to debug 
AsterixDB to that page.

I think that it should be ‘suspend=y’. Does 'suspend=1' work as 
well?

Cheers,
Till

[1] https://cwiki.apache.org/confluence/display/ASTERIXDB/Debugging

On 9 Nov 2015, at 7:47, Ian Maxon wrote:

> Another tweak would be to specify 'suspend=1' along with the debug
> port option in asterix-configuration.xml. That'd stop the CC/NC from
> starting until the debugger's actually attached.
>
> On Fri, Nov 6, 2015 at 6:16 PM, Till Westmann <tillw@apache.org> 
> wrote:
>> Tried that as well and it worked, but it feels sub-optimal :)
>>
>> Murtadha’s way also works nicely (and doesn’t require short 
>> reaction times!)
>> if you don’t want to be strictly in the RecoveryIT context.
>>
>> Cheers,
>> Till
>>
>>
>> On 6 Nov 2015, at 17:04, Young-Seok Kim wrote:
>>
>>> I was doing what Ildar did and I did attaching quickly. :(
>>>
>>> On Fri, Nov 6, 2015 at 4:34 PM, Till Westmann <tillw@apache.org> 
>>> wrote:
>>>
>>>> Thanks for both replies!
>>>>
>>>> @Ildar: When you added the JVM parameters for the CC or NC, how did 
>>>> you
>>>> go
>>>> about attaching at the “right” point in time? Did you stop the 
>>>> JVM
>>>> waiting
>>>> for the connection or were you “attaching quickly”?
>>>>
>>>> Thanks again,
>>>> Till
>>>>
>>>>
>>>> On 5 Nov 2015, at 22:47, Murtadha Hubail wrote:
>>>>
>>>> I think the easiest way without having to attach a remote debugger 
>>>> is to
>>>>>
>>>>> execute their queries manually in the web interface after running
>>>>> AsterixHyracksIntegrationUtil in debugging mode. When it is time 
>>>>> to
>>>>> execute
>>>>> kill_cc_nc.sh, just kill -9 the AsterixHyrackIntegrationUtil 
>>>>> process.
>>>>> Then
>>>>> run AsterixHyrackIntegrationUtil again and it will perform the 
>>>>> recovery.
>>>>>
>>>>> -Murtadha
>>>>>
>>>>> On Nov 5, 2015, at 10:14 PM, Ildar Absalyamov
>>>>> <ildar.absalyamov@gmail.com>
>>>>>>
>>>>>> wrote:
>>>>>>
>>>>>> Till,
>>>>>>
>>>>>> The only way I found to debug it sometime ago when I needed was 
>>>>>> to add
>>>>>> remote debugger into CC/NC JVM properties of 
>>>>>> asterix-configuration.xml
>>>>>> (asterix-installer/src/main/resources/conf), which is used to 
>>>>>> setup
>>>>>> mini
>>>>>> cluster to tests.
>>>>>>
>>>>>> On Nov 6, 2015, at 11:07, Till Westmann <tillw@apache.org> wrote:
>>>>>>>
>>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> I’m wondering how people go about running the code that is 
>>>>>>> executed by
>>>>>>> one of the RecoveryIT in the debugger.
>>>>>>> I imagine that there are number of ways to do that.
>>>>>>> If you have done this at some point, could you describe how you 
>>>>>>> did
>>>>>>> that?
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Till
>>>>>>>
>>>>>>
>>>>>> Best regards,
>>>>>> Ildar
>>>>>>
>>>>>>
>>