Hi Markus, > The Linux machines have proper settings for ulimit and friends, 32k open files > allowed so i suspect there's another limit which i am unaware of. I also > listed the number of open files while the errors were coming in but it did not > exceed 11k at any given time.
How did you check the number of filedescriptors used? Did you get this number from the system info handler (http://hotname:8983/solr/admin/system?indent=on&wt=json) or somehow differently? -- Sami Siren