Query
select reflect('java.lang.Integer', 'parseInt', 'a', 16) from src limit 1;
throws java.lang.NoSuchMethodException: java.lang.Integer.parseInt(null, int)
A bug or a feature?
val option wants it to do. So I set
hive.groupby.mapaggr.checkinterval=1000.
Worked like a charm.
Thanks.
2012/3/20 Alexander Ershov
> I said it wrong: what really bothers me is not 500MB of RAM usage - it's
> that mapper starting as 70-200Mb happy chimp becomes 500MB-600MB
> b
0G of data you are having just 7 mappers, need to increase the
> number of mappers for better parallelism.
>
> Regards
> Bejoy
>
> ------
> *From:* Alexander Ershov
> *To:* user@hive.apache.org
> *Sent:* Tuesday, March 20, 2012 4:13 PM
> *Sub
Hiya,
I'm using HIVE 0.7.1 with
1) moderate 50GB table, let's call it `temp_view`
2) query: select max(length(get_json_object(json, '$.user_id'))) from
temp_view. From my point of view this query is a total joke, nothing
serious.
Query runs just fine, everyone's happy.
But I have massive memory
