Hi Otis,
Thank you so much for the reply. I do appreciate it.
Actually, I've tried the sematext spm few days ago:) It works well and is
easy to deploy.
However, in the monitoring output figure for different metrics, the
interval is 1 minute, which is longer than I want. What I want is something
like one metric value / second and I want to have a close eye on each metric.
That's why I post question and want to print out the metrics information in
the console.
I'm wondering whether you have any other solution for my question.
Thanks!
Jun
From: otis.gospodne...@gmail.com
Date: Tue, 14 Jun 2016 15:01:20 -0400
Subject: Re: How to print out the metrics information, like compaction and
garbage collection?
To: user@cassandra.apache.org
Hi Jun,
Here's a tool for dumping JMX contents: https://github.com/sematext/jmxcHere's
a tool/service for monitoring Cassandra:
https://sematext.com/spm/integrations/cassandra-monitoring/Otis
--
Monitoring - Log Management - Alerting - Anomaly DetectionSolr & Elasticsearch
Consulting Support Training - http://sematext.com/
On Mon, Jun 13, 2016 at 5:17 PM, Jun Wu <wuxiaomi...@hotmail.com> wrote:
Hi there,
I've deployed 6 node in Amazon EC2. I'm trying to monitor some metrics for
each node and print them out when I write/read data into Cassandra.
Specifically I want to print out the information about garbage collection and
compaction.
I do notice that there's metrics for compaction in o.a.c.metrics.
CompactionMetrics.java. But I don't know how to get them, I've tried method
below: CompactionMetrics metrics = new CompactionMetrics();
System.out.println(metrics.pendingtasks);
But it doesn't work.
************* Another/same question is about the garbage collection, any
idea on where should I refer to and get the information about garbage
collection, like garbage collection count, collection time, etc.
Any hint will be appreciated.
Thanks!
Jun
