[ https://issues.apache.org/jira/browse/CASSANDRA-12876?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15769926#comment-15769926 ]
Aleksandr Ivanov commented on CASSANDRA-12876: ---------------------------------------------- Same problem with mean Read Latency on v3.0.9 > Negative mean write latency > --------------------------- > > Key: CASSANDRA-12876 > URL: https://issues.apache.org/jira/browse/CASSANDRA-12876 > Project: Cassandra > Issue Type: Bug > Components: Observability > Reporter: Kévin LOVATO > Assignee: Per Otterström > Fix For: 2.2.9 > > Attachments: 12876-2.2.txt, negative_mean.png, > negative_mean_details.PNG, negative_mean_periodicity.PNG > > > The mean write latency returned by JMX turns negative every 30 minutes. As > the attached screenshots show, the value turns negative every 30 minutes > after the startup of the node. > We did not experience this behavior in 2.1.16. -- This message was sent by Atlassian JIRA (v6.3.4#6332)