If you are pushing metric data to graphite, there is org.apache.cassandra.metrics.keyspace.<keyspace_name>.LiveDiskSpaceUsed.value
… for each node; Easy enough to graph the sum across machines. Metrics/JMX are tied together in C*, so there is an equivalent value exposed via JMX… I don’t know what it is called off the top of my head, but would be something similar to the above. > On Jul 1, 2015, at 9:28 AM, sean_r_dur...@homedepot.com wrote: > > That’s ok for a single node, but to answer the question, “how big is my table > across the cluster?” it would be much better if the cluster could provide an > answer. > > Sean Durity > > From: Jonathan Haddad [mailto:j...@jonhaddad.com <mailto:j...@jonhaddad.com>] > Sent: Monday, June 29, 2015 8:15 AM > To: user > Subject: Re: How to measure disk space used by a keyspace? > > If you're looking to measure actual disk space, I'd use the du command, > assuming you're on a linux: http://linuxconfig.org/du-1-manual-page > <http://linuxconfig.org/du-1-manual-page> > > On Mon, Jun 29, 2015 at 2:26 AM shahab <shahab.mok...@gmail.com > <mailto:shahab.mok...@gmail.com>> wrote: > Hi, > > Probably this question has been already asked in the mailing list, but I > couldn't find it. > > The question is how to measure disk-space used by a keyspace, column family > wise, excluding snapshots? > > best, > /Shahab > > > The information in this Internet Email is confidential and may be legally > privileged. It is intended solely for the addressee. Access to this Email by > anyone else is unauthorized. If you are not the intended recipient, any > disclosure, copying, distribution or any action taken or omitted to be taken > in reliance on it, is prohibited and may be unlawful. When addressed to our > clients any opinions or advice contained in this Email are subject to the > terms and conditions expressed in any applicable governing The Home Depot > terms of business or client engagement letter. The Home Depot disclaims all > responsibility and liability for the accuracy and content of this attachment > and for any damages or losses arising from any inaccuracies, errors, viruses, > e.g., worms, trojan horses, etc., or other items of a destructive nature, > which may be contained in this attachment and shall not be liable for direct, > indirect, consequential or special damages in connection with this e-mail > message or its attachment.
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