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DELL PowerEdge R740xd - NUMA - memory performance

This is obviously a late answer but I ran across this question. I specialize in doing a lot of this at work and unfortunately a complete answer on doing NUMA testing is long and nuanced. Here are some ...
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kafka cluster RAID vs JBOD with new hardware and kafka versions

Performance wise JBOD will get you more capacity and more throughout. RAID eventually makes IO operations to make sure the data partitioned and exists in several places to tolerate disk failure. https:...
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File transfer between servers seems slow

Apparently my biggest issue was NOT the mount options like I thought, it was just tons and tons of write operations on an NFS drive. I found this excellent question/answer here about trying to ...
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File transfer between servers seems slow

I would start by installing ethtool (if you haven't already). And then running ethtool against your network adapter. Verifying what link speed each server is connected at. Is it 10/100/1000 and what ...
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Fix the KubeletHasDiskPressure in Kubernetes on a very limited server

Adding the following to /etc/kubernetes/kubelet.env fixed the issue: --eviction-hard=nodefs.available<1%,imagefs.available<1%,nodefs.inodesFree<1% I believe the KubeletConfiguration should ...

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