> > Why the df -h and du -sh shows a big discrepancy? nodetool load is it > computed with df -h? >
In Linux terms, df reports the filesystem disk usage while du is an *estimate* of the file space usage. What that means is that the operating system uses different accounting between the two utilities. If you're looking for a more detailed explanation, just do a search for "df vs du". With nodetool load, do you have any snapshots still on disk? This usually accounts for the discrepancy. Snapshots are hard links to the same inodes as the original SSTables -- put simply, they're "pointers" to the original files so they don't occupy the same amount of space. If you think there's a real issue, one way to troubleshoot is to do a du on the table subdirectory then compare it to the size reported by nodetool tablestats <keyspace.table>. Cheers!
