RE: Questions about high read latency and related metrics

2023-05-11 Thread Michail Kotsiouros via user
Hello Erick, No Max/Min/Mean vs Histogram difference is clear. What confuses me is the description of those metrics: Size of the compacted partition (in bytes). Vs estimated partition size. I am after what is measured by each metric. To be more specific: What metric should be consider when we wan

Re: Questions about high read latency and related metrics

2023-05-11 Thread Erick Ramirez
Is it the concept of histograms that's not clear? Something else? >

RE: Questions about high read latency and related metrics

2023-05-11 Thread Michail Kotsiouros via user
Hello Erick, Thanks a lot for the immediate reply but still the difference between those 2 metrics is not clear to me. BR MK From: Erick Ramirez Sent: Thursday, May 11, 2023 13:04 To: user@cassandra.apache.org Subject: Re: Questions about high read latency and related metrics The min/max/mean

Re: Questions about high read latency and related metrics

2023-05-11 Thread Erick Ramirez
The min/max/mean partition sizes are the sizes in bytes which are the same statistics reported by nodetool tablestats. EstimatedPartitionSizeHistogram is the distribution of partition sizes within specified ranges (percentiles) and is the same histogram reported by nodetool tablehistograms (in the

Questions about high read latency and related metrics

2023-05-11 Thread Michail Kotsiouros via user
Hello Cassandra community, I see the following metrics in JMX Metric Name org.apache.cassandra.metrics.Table... MinPartitionSize Gauge Size of the smallest compacted partition (in bytes). MaxPartitionSize Gauge Size of the largest compacted partition (in bytes). MeanPartitionSize Gauge Size o