Thanks Ryan,

Going to work with that version for a while, in this case.

Alin

On Fri, Feb 3, 2012 at 7:26 PM, Ryan Zezeski <[email protected]> wrote:

> Alin,
>
> Sorry for your troubles, you are hitting a bug.  If a post-commit hook
> fails the exception is caught and silently dropped on the floor.  That is,
> it is not logged anywhere at any time and therefore you have no way to know
> if it failed or not.
>
> Just recently a patch was merged for this in the master branch that will
> be included in the next release.  However, it's worth noting that the patch
> also doesn't log anything by default (well it does, but to the debug level
> which is not enabled by default).  Rather it increments a new stat
> (accessible via `riak-admin status`) named `postcommit_fail`.  While I was
> making this patch I also went ahead and did the same for pre-commit hooks.
>
> So while developing you can run with debug level and then in production
> you can run the following to determine if something failed:
>
> $ ./rel/riak/bin/riak-admin status | grep commit
> precommit_fail : 0
> postcommit_fail : 0
>
> -Ryan
>
> On Fri, Feb 3, 2012 at 5:37 AM, Alin Popa <[email protected]> wrote:
>
>> Hi guys,
>>
>> I've worked a bit with the Riak's post commit hooks:
>>
>> 1. Create a post commit module/function:
>>
>> *-module(post_commit_hooks).*
>> *
>> *
>> *-export([log/1]).*
>> *
>> *
>> *log(Object) ->*
>> *  error_logger:info_msg("OBJECT: ~p~n",[Object]).*
>>
>> 2. Updated the app.conf file in order to pick it up
>> 3. Compiled the file using the erts that's embedded into the riak
>> distribution (which is 1.0.3 btw)
>> 4. Started the riak node
>> 5. Done some simple operations (get and save of objects) and I was able
>> to see the object being dumped to the console.log file.
>>
>> For the failing scenario:
>> 1. Changed the function a bit in order to call an inexistent function
>>
>> *-module(post_commit_hooks).*
>> *
>> *
>> *-export([log/1]).*
>> *
>> *
>> *log(Object) ->*
>> *  error_loggerrrrr:info_msg("OBJECT: ~p~n",[Object]).*
>>
>> 2. Stop riak
>> 3. Enabled sasl logging {sasl,[{error_logger_mf_maxfiles,
>> 5},{sasl_error_logger, {file,
>> "/Users/alin/riak/log/sasl-error.log"}},{error_logger_mf_maxbytes,
>> 10485760},{errorlog_type, error},{error_logger_mf_dir,
>> "/Users/alin/riak/log"}]}
>> 4. Recompile the file, using the same erts version
>> 5. Start riak
>> 6. Read and save of the riak objects, but this time, can't see any error
>> to the log files (especially sasl-error.log, as basho's wiki is suggesting
>> [1], even though I can see different kind of messages to sasl-error.log
>> that are not related to the failing execution).
>>
>> Is it something that I'm missing, or is this a bug ?
>>
>> Thanks,
>> Alin
>>
>> [1] http://wiki.basho.com/Commit-Hooks.html
>>
>> _______________________________________________
>> riak-users mailing list
>> [email protected]
>> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
>>
>>
>
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