Can we the see “nodetool tablestats” for the biggest table as well.
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com.INVALID] Sent: Sunday, February 10, 2019 7:21 AM To: user@cassandra.apache.org Subject: RE: Maximum memory usage Okay, that’s at the moment it was calculated. Still need to see histograms. From: Rahul Reddy [mailto:rahulreddy1...@gmail.com] Sent: Sunday, February 10, 2019 7:09 AM To: user@cassandra.apache.org Subject: Re: Maximum memory usage Thanks Kenneth, 110mb is the biggest partition in our db On Sun, Feb 10, 2019, 9:55 AM Kenneth Brotman <kenbrot...@yahoo.com.invalid> wrote: Rahul, Those partitions are tiny. Could you give us the table histograms for the biggest tables. Thanks, Kenneth Brotman From: Rahul Reddy [mailto:rahulreddy1...@gmail.com] Sent: Sunday, February 10, 2019 6:43 AM To: user@cassandra.apache.org Subject: Re: Maximum memory usage ```Percentile SSTables Write Latency Read Latency Partition Size Cell Count (micros) (micros) (bytes) 50% 1.00 24.60 219.34 258 4 75% 100 24.60 379.02 446 8 95% 1.00 35.43 379.02 924 17 98% 1.00 51.01 379.02 1109 24 99% 1.00 61.21 379.02 1331 29 Min 0.00 8.24 126.94 104 0 Max 1.00 152.32 379.02 8409007 152321 ``` On Wed, Feb 6, 2019, 8:34 PM Kenneth Brotman <kenbrot...@yahoo.com.invalid> wrote: Can you give us the “nodetool tablehistograms” Kenneth Brotman From: Rahul Reddy [mailto:rahulreddy1...@gmail.com] Sent: Wednesday, February 06, 2019 6:19 AM To: user@cassandra.apache.org Subject: Maximum memory usage Hello, I see maximum memory usage alerts in my system.log couple of times in a day as INFO. So far I haven't seen any issue with db. Why those messages are logged in system.log do we have any impact for reads/writes with those warnings? And what nerd to be looked INFO [RMI TCP Connection(170917)-127.0.0.1] 2019-02-05 23:15:47,408 NoSpamLogger.java:91 - Maximum memory usage reached (512.000MiB), cannot allocate chunk of 1.000MiB Thanks in advance
