Its the number of sstables that may of been read from. This includes sstables who had their bloom filters checked (which may hit disk). This changes a bit in https://issues.apache.org/jira/browse/CASSANDRA-13120 to be only the sstables that its actually reading from.
On Wed, Jul 19, 2017 at 11:04 AM, Abhinav Solan <abhinav.so...@gmail.com> wrote: > Hi Everyone, > > Here is the result of my tablehistograms command on one of our tables. > > Percentile SSTables Write Latency Read Latency Partition Size > Cell Count > (micros) (micros) (bytes) > 50% 4.00 73.46 545.79 152321 > 8239 > 75% 10.00 88.15 2346.80 379022 > 20501 > 95% 10.00 152.32 4055.27 1358102 > 73457 > 98% 10.00 219.34 4866.32 1955666 > 88148 > 99% 10.00 315.85 5839.59 1955666 > 105778 > Min 0.00 17.09 35.43 73 > 3 > Max 10.00 36157.19 52066.35 2816159 > 152321 > > What does SSTables column represent here? > Does it mean how many SSTables the read is spanning to? > > Thanks, > Abhinav >
