Linux command nfsiostat can be used to determine the average Round Trip Time (avg RTT) in milliseconds which is a good measurement for storage performance issue. The nfsiostat command is available in later versions of the nfs-utils package. What does…
This article is part of the following series. High iowait issue is usually related to io performance which includes disk performance and nfs performance. We will look at how to check disk performance and nfs performance today. Check Disk…
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actimeo is a common NFS mount option in Linux. actimeo=0 can make a big performance difference in the production environment. What does actimeo mean in nfs mount? The “actimeo=0” option means turn attribute caching off. The actimeo option actually makes…
The default password for Cassandra is Cassandra. So we need to change it immediately after we install it. We can use this command to change it. Change default password for Cassandra user # cqlsh `hostname` -u cassandra Password: Connected to…
