I ended up writing some of my own utilities and aliases to make output more
useful for me (and reduce some typing, too). Resolving host names was a big one
for me, too. Ip addresses are almost useless. Up time in seconds is useless.
The –r in nodetool is a nice addition, but I like the short host name instead.
hostname:/home/cassuser> cinfo
DSE Version : 4.7.0
Cassandra Ver : 2.1.5.469
Gossip active : true
Thrift active : true
Native Transport active: true
Load : 2.67 GB
Up since : Sun Sep 13 00:36:50 EDT 2015
Heap Memory (MB) : 3645.74 / 7987.25
Off Heap Memory (MB) : 203.93
Heap Used % : 45.64
Thrift Conns : 0
CQL Conns : 12
Topology : DC1 : RAC1
hostname:/home/cassuser> cstatus
Datacenter: DC1
===============
Status=Up/Down
/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns Host ID
Rack
UN cplinpys 8.47 GB 256 ?
f498c0f9-0041-404c-979d-d1269c6a2287 RAC1
UN cplinpyr 2.67 GB 256 ?
397546c2-e229-482e-aa50-de367ab6add8 RAC1
UN cplinpyt 2.17 GB 256 ?
f61da10c-c2c6-4a5a-8fdc-d2693f2239bc RAC1
Sean Durity – Lead Cassandra Admin
From: Gene [mailto:[email protected]]
Sent: Thursday, October 08, 2015 12:43 PM
To: [email protected]
Subject: Re: Why can't nodetool status include a hostname?
Yeah, -r or --resolve-ip is what you're looking for.
Cassandra's nodetool command is kind of wonky. Inconsistent across functions
(e.g. sometimes 'keyspace.columnfamily' other times 'keyspace columnfamily',
pay attention to the character between the items), doesn't resolve IPs by
default (while standard linux commands require you to pass something like -n to
not resolve names), so on and so forth.
When in doubt run nodetool without specifying a command and it'll list all of
the available options (another example of wonkiness, the 'help' argument is not
listed in this output)
-Gene
On Thu, Oct 8, 2015 at 7:01 AM, Paulo Motta
<[email protected]<mailto:[email protected]>> wrote:
Have you tried using the -r or --resolve-ip option?
2015-10-07 19:59 GMT-07:00 Kevin Burton
<[email protected]<mailto:[email protected]>>:
I find it really frustrating that nodetool status doesn't include a hostname
Makes it harder to track down problems.
I realize it PRIMARILY uses the IP but perhaps cassandra.yml can include an
optional 'hostname' parameter that can be set by the user. OR have the box
itself include the hostname in gossip when it starts up.
I realize that hostname wouldn't be authoritative and that the IP must still be
shown but we could add another column for the hostname.
--
We’re hiring if you know of any awesome Java Devops or Linux Operations
Engineers!
Founder/CEO Spinn3r.com<http://Spinn3r.com>
Location: San Francisco, CA
blog: http://burtonator.wordpress.com
… or check out my Google+
profile<https://plus.google.com/102718274791889610666/posts>
________________________________
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.
