Re: [Bigdata-developers] After a timeout I get only timeouts

[Daniel H. <da...@de...>]

First I run 30 queries and I got a timeout around query 20. With the 
option -XX:+UseG1GC I have solved issue. Then I increment the number of 
queries to 300. Now I got the first timeout around query 100. So the 
problem continues.

The issue is not with queries. Queries are not complex. Most of them end 
in one second.
Also, I shuffle them in each experiment. The behavior is always the 
same, there is an instant after that all queries get timeout.

Now I'm reading the GC documentation and testing with different parameters.

Cheers,
Daniel

El 24/04/16 a las 13:14, Bryan Thompson escribió:
> Great. However, if this was GC overhead, then there is likely a 
> remaining issue with the queries or the configuration.  I would not 
> expect normal queries to incur that kind of GC overhead.
>
> Thanks,
> Bryan
>
> On Sun, Apr 24, 2016 at 12:12 PM, Daniel Hernández <da...@de... 
> <mailto:da...@de...>> wrote:
>
>     I solved the problem of timeouts. The issue was generated by the
>     garbage
>     collector. I used the option  -XX:+UseG1GC that is documented here:
>
>     http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html#G1Options
>
>
>     Thanks to all!
>     Daniel
>
>
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