Hello, Today one of our NFS servers running OpenSolaris 2009.6 became very unstable. It's a dual Quad-Core Xeon with 32GB of RAM and a dual Gigabit Ethernet adapter.
Network access was very intermittent (>10000ms RTT), SSH was flaky and the NFS clients were hanging randomly. After further inspecting the server locally it was evident that: - nfsd had spawned lots of LWPs (>2400) - nfsd was consuming 100% of one CPU and the other seven were totally idle - system load avg was 1.2-1.3 We didn't have much time to troubleshoot this further and, after nfsd refused to stop for several minutes, the server was forced to reboot. This is the third occurrence in a few months and we are guessing it's a combination of bad NFS clients (RHEL5) and not enough limits on our side. Since we are expecting this to happen again, what kind of information would be helpful to troubleshoot it and submit a bug if needed ? Has anyone else seen this problem ? Thank you, -- Giovanni _______________________________________________ nfs-discuss mailing list [email protected]
