On 12-10-18 5:56 AM, Galder Zamarreño wrote: > On Oct 17, 2012, at 11:44 PM, Vladimir Blagojevic <vblagoje(a)redhat.com&gt; wrote: > >> Hey Galder, >> >> I've noticed that some of the Map/Reduce tasks were failing due to CacheRemoveCommand timeouts. > Hmmm, who's calling remove cache? MapReduceTask is calling it when it cleans up and destroys temp cache.

>> I've noticed that sometimes cache stop command takes longer that default rpc timeout and was wondering why might be the cause? > Thread dumps? Logs? I'll take a look, no problem. > >> If there is nothing to be done for cache stopping timeout does it make sense to have an option of CacheRemoveCommand being asynchronous? > Well, before you consider that you need to figure out why remove cache is called, and if it's really needed. > It is needed to remove tmp cache that MapReduceTask used for intermediate values.

Cheers, Vladimir