Hi Shawn, thanks for your help. Given that I’ll put the question in another way. If Java don’t correctly detect the number of CPU how the overall performance can be affected by this?
Ciao, Vincenzo -- mobile: 3498513251 skype: free.dev > On 16 Mar 2022, at 18:56, Shawn Heisey <elyog...@elyograg.org> wrote: > > On 3/16/22 03:56, Vincenzo D'Amore wrote: >> just asking how can I rely on the number of processors the solr dashboard >> shows. >> >> Just to give you a context, I have a 2 nodes solrcloud instance running in >> kubernetes. >> Looking at solr dashboard (8.3.0) I see there is only 1 cpu available per >> solr instance. >> but the Solr pods are deployed in two different kube nodes, and entering >> the pod with the >> kubectl exec -ti solr-0 -- /bin/bash >> and running top I see there are 16 cores available for each solr instance. > > The dashboard info comes from Java, and Java gets it from the OS. How that > works with containers is something I don't know much about. Here's what > Linux says about a server I have which has two six-core Intel CPUs with > hyperthreading. This is bare metal, not a VM or container: > > elyograg@smeagol:~$ grep processor /proc/cpuinfo > processor : 0 > processor : 1 > processor : 2 > processor : 3 > processor : 4 > processor : 5 > processor : 6 > processor : 7 > processor : 8 > processor : 9 > processor : 10 > processor : 11 > processor : 12 > processor : 13 > processor : 14 > processor : 15 > processor : 16 > processor : 17 > processor : 18 > processor : 19 > processor : 20 > processor : 21 > processor : 22 > processor : 23 > > If I start Solr on that server, the dashboard reports 24 processors. > > Thanks, > Shawn >
