I created a small script recently converting this timestamp into a human readable string and sort all entries ascending.
nodetool compactionhistory |awk '{timestamp = strftime("%a %b %e %H:%M:%S %Z %Y",$4 / 1000);in_m=$5/1024/1024;out_m=$6/1024/1024; printf("%s\t%s\t%s\t%s\t%dM\t%dM\n",$4,timestamp,$2,$3,in_m,out_m)}' |sort -n Regards Andi ________________________________ From: Mark Reddy [mark.l.re...@gmail.com] Sent: 08 February 2015 21:55 To: user@cassandra.apache.org Subject: Re: Compacted_at timestamp Hi Santo, If you are seeing the compacted_at value as timestamp and want to convert it to a human readable date, this is not possible via nodetool. You will always write a script to make the compactionhistory call and then convert the output (the fourth column - compacted_at) to a readable date. If you are seeing something other than an expected timestamp value, can you post an example of what you are getting? Regards, Mark On 8 February 2015 at 13:20, Havere Shanmukhappa, Santhosh <santhosh_havereshanmukha...@intuit.com<mailto:santhosh_havereshanmukha...@intuit.com>> wrote: When I run nodetool compactionhistory command, it displays ‘compacted_at’ timestamp in non-readable format. Any way to read that column in readable format? I am using c*2.0.11 version. Thanks, Santo