drastic performance decrease with 20 cores

2011-09-26 Thread Bictor Man
Hi everyone, Sorry if this issue has been discussed before, but I'm new to the list. I have a solr (3.4) instance running with 20 cores (around 4 million docs each). The instance has allocated 13GB in a 16GB RAM server. If I run several sets of queries sequentially in each of the cores, the I/O a

drastic performance decrease with 20 cores

2011-09-26 Thread Bictor Man
Hi everyone, Sorry if this issue has been discussed before, but I'm new to the list. I have a solr (3.4) instance running with 20 cores (around 4 million docs each). The instance has allocated 13GB in a 16GB RAM server. If I run several sets of queries sequentially in each of the cores, the I/O a

Re: drastic performance decrease with 20 cores

2011-09-26 Thread Bictor Man
ate just enough memory to SOLR to run > optimally rather than as much as possible. 'Just enough' depends as well. > You will need to try out different allocations and see where the sweet spot > is. > > Cheers > > François > > > On Sep 26, 2011, at 9:53 AM, Bictor