incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Paulo Motta <pauloricard...@gmail.com>
Subject Re: Output of "nodetool ring" with virtual nodes
Date Tue, 15 Oct 2013 19:03:05 GMT
That's cool! Many thanks! :-)

2013/10/15 Jon Haddad <jon@jonhaddad.com>

> It's expected.  I think nodetool status is meant to replace nodetool ring.
>
> On Oct 15, 2013, at 11:45 AM, Paulo Motta <pauloricardomg@gmail.com>
> wrote:
>
> Hello,
>
> I recently did the "Enabling virtual nodes on an existing production
> cluster" procedure (
> http://www.datastax.com/documentation/cassandra/1.2/webhelp/cassandra/configuration/configVnodesProduction_t.html),
> and noticed that the output of the command "nodetool ring" changes
> significantly when virtual nodes are enabled in a new data center.
>
> Before, it showed only 1 token per node, now it shows 256 tokens per node
> (output below). So, that means 256*N entries, which makes the command
> unreadable, while before it was pretty useful to check the cluster status
> in a human-readable format. Moreover, the command is taking much longer to
> execute.
>
> Is this expected behavior, or did I make any mistake during the procedure?
>
> Cassandra version: 1.2.10
>
> Before it was like this:
>
> Datacenter: VNodesDisabled
> ==========
> Replicas: 3
>
> Address          Rack        Status State   Load            Owns
>      Token
>
>       28356863910078205239614050619314017619
> AAA.BBB.CCC.1   x         Up     Normal  236.49 GB       20.83%
>    113427455640312821154458002477256070480
> AAA.BBB.CCC.2   x         Up     Normal  347.6 GB        29.17%
>    77981375752715064543690004203113548455
> AAA.BBB.CCC.3   x         Up     Normal  332.46 GB       37.50%
>    106338614526609105785626408013334622686
> AAA.BBB.CCC.4   x         Up     Normal  198.94 GB       20.83%
>    141784319550391026443072753090570088104
> AAA.BBB.CCC.5   x         Up     Normal  330.68 GB       33.33%
>    92159807707754167187997289512070557265
> AAA.BBB.CCC.6   x         Up     Normal  268.64 GB       25.00%
>    155962751505430129087380028400227096915
> AAA.BBB.CCC.7   x         Up     Normal  262.43 GB       25.00%
>    163051967482949680409533666060055601314
> AAA.BBB.CCC.8   x         Up     Normal  200.18 GB       16.67%
>    1
> AAA.BBB.CCC.9   x         Up     Normal  189.13 GB       16.67%
>    120516671617832372476611040132084574885
> AAA.BBB.CCC.10  x         Up     Normal  220.7 GB        25.00%
>    42535295865117307932921025928971026429
> AAA.BBB.CCC.11  x         Up     Normal  259.36 GB       25.00%
>    35446079887597756610768088274142522024
> AAA.BBB.CCC.12  x         Up     Normal  270.32 GB       25.00%
>    28356863910078205088614550619314017619
>
>
> Now it is like this:
> Datacenter: VNodesEnabled
> ==========
> Replicas: 3
>
> Address          Rack        Status State   Load            Owns
>      Token
>
>       168998414504718061309167200639854699955
> XXX.YYY.ZZZ.1    y          Up     Normal  122.84 KB       0.00%
>     4176479009577065052560790400565254
> XXX.YYY.ZZZ.1    y          Up     Normal  122.84 KB       0.00%
>     291517050854558940844583227825291566
> XXX.YYY.ZZZ.1    y          Up     Normal  122.84 KB       0.00%
>     389126351568277133928956802249918052
> XXX.YYY.ZZZ.1    y          Up     Normal  122.84 KB       0.00%
>     504218791605899949008255495493335240
> XXX.YYY.ZZZ.2    y          Up     Normal  122.84 KB       0.00%
>     4176479009577065052560790400565254
> XXX.YYY.ZZZ.2    y          Up     Normal  122.84 KB       0.00%
>     291517050854558940844583227825291566
> XXX.YYY.ZZZ.2    y          Up     Normal  122.84 KB       0.00%
>     389126351568277133928956802249918052
> XXX.YYY.ZZZ.2    y          Up     Normal  122.84 KB       0.00%
>     504218791605899949008255495493335240
> XXX.YYY.ZZZ.3    y          Up     Normal  122.84 KB       0.00%
>     4176479009577065052560790400565254
> XXX.YYY.ZZZ.3    y          Up     Normal  122.84 KB       0.00%
>     291517050854558940844583227825291566
> XXX.YYY.ZZZ.3    y          Up     Normal  122.84 KB       0.00%
>     389126351568277133928956802249918052
> XXX.YYY.ZZZ.3    y          Up     Normal  122.84 KB       0.00%
>     504218791605899949008255495493335240
> XXX.YYY.ZZZ.4    y          Up     Normal  122.84 KB       0.00%
>     4176479009577065052560790400565254
> XXX.YYY.ZZZ.4    y          Up     Normal  122.84 KB       0.00%
>     291517050854558940844583227825291566
> XXX.YYY.ZZZ.4    y          Up     Normal  122.84 KB       0.00%
>     389126351568277133928956802249918052
> XXX.YYY.ZZZ.4    y          Up     Normal  122.84 KB       0.00%
>     504218791605899949008255495493335240
> XXX.YYY.ZZZ.5    y          Up     Normal  122.84 KB       0.00%
>     4176479009577065052560790400565254
> XXX.YYY.ZZZ.5    y          Up     Normal  122.84 KB       0.00%
>     291517050854558940844583227825291566
> XXX.YYY.ZZZ.5    y          Up     Normal  122.84 KB       0.00%
>     389126351568277133928956802249918052
> XXX.YYY.ZZZ.5    y          Up     Normal  122.84 KB       0.00%
>     504218791605899949008255495493335240
> XXX.YYY.ZZZ.6    y          Up     Normal  122.84 KB       0.00%
>     4176479009577065052560790400565254
> XXX.YYY.ZZZ.6    y          Up     Normal  122.84 KB       0.00%
>     291517050854558940844583227825291566
> XXX.YYY.ZZZ.6    y          Up     Normal  122.84 KB       0.00%
>     389126351568277133928956802249918052
> XXX.YYY.ZZZ.6    y          Up     Normal  122.84 KB       0.00%
>     504218791605899949008255495493335240
> ....
>
>
>


-- 
Paulo Ricardo

-- 
European Master in Distributed Computing***
Royal Institute of Technology - KTH
*
*Instituto Superior T├ęcnico - IST*
*http://paulormg.com*

Mime
View raw message