How to fix No space left on device issue on Linux
No space left on device usually means that we run out of disk space. But in rare cases, we still…
Rsync vs Scp – Which is Faster?
Rsync is a unique, full-featured file transfer facility. It can perform differential uploads and downloads (synchronization) of files across the…
14 Apache Cassandra best Practices for developers & Application Teams
No Load balancers in front of cassandra Cassandra distributes the data across the nodes and most of the cassandra drivers…
27 Cassandra Best Practices for Administrators / DBA team
Decrease the default read ahead values in unix/linux systems Most of the modern unix/linux systems use read ahead so that…
Cassandra error Unit cassandra.service entered failed state
We get this error when we start our Cassandra recently. New main PID x does not belong to service, and…
How to fix “WARNING: Your password has expired.” in Linux?
Sometimes when we ssh to Linux box, we get this error “WARNING: Your password has expired.” You must change your…
How does data distribution work in Cassandra?
Cassandra uses data partitions to distribute data to each node. Partitions are based on the partition keys. Partition function(partition key)…
How to backup Cassandra database ? 14348 Ratings
Apache Cassandra supports two kinds of backup strategies. A snapshot is a copy of a table’s SSTable files at a…
Troubleshoot Cassandra Read Timeout issue in Linux
Cassandra timeout issue is a complex issue. Today we will review what read timeout mean in Cassandra and how to…
How rp_filter works on Linux?
Rp_filter is short for reverse path filtering on Linux. We can use this to filter packets on Linux. Here are…