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Posted to user@cassandra.apache.org by Joe Obernberger <jo...@gmail.com> on 2021/10/28 19:03:53 UTC

4.0.1 - adding a node

I recently added a node to a cluster.  Immediately after adding the 
node, the cluster status (nyx is the new node):

UJ  nyx.querymasters.com        181.25 KiB 250     ?                 
07bccfce-45f1-41a3-a5c4-ee748a7a9b98 rack1
UN  enceladus.querymasters.com  569.53 GiB  200 35.1%             
660f476c-a124-4ca0-b55f-75efe56370da  rack1
UN  calypso.querymasters.com    578.79 GiB  200 34.8%             
e83aa851-69b4-478f-88f6-60e657ea6539  rack1
UN  fortuna.querymasters.com    593.79 GiB  200 34.6%             
49e4f571-7d1c-4e1e-aca7-5bbe076596f7  rack1
UN  charon.querymasters.com     603.3 GiB   200 35.0%             
d9702f96-256e-45ae-8e12-69a42712be50  rack1
UN  eros.querymasters.com       589.04 GiB  200 34.2%             
93f9cb0f-ea71-4e3d-b62a-f0ea0e888c47  rack1
UN  hercules.querymasters.com   12.31 GiB   4 0.7%              
a1a16910-9167-4174-b34b-eb859d36347e  rack1
UN  ursula.querymasters.com     611.65 GiB  200 35.0%             
4bbbe57c-6219-41e5-bbac-de92a9594d53  rack1
UN  gaia.querymasters.com       480.62 GiB  200 34.7%             
b2e5366e-8386-40ec-a641-27944a5a7cfa  rack1
UN  chaos.querymasters.com      358.07 GiB  120 20.5%             
08a19658-40be-4e55-8709-812b3d4ac750  rack1
UN  pallas.querymasters.com     537.88 GiB  200 35.3%             
b74b6e65-af63-486a-b07f-9e304ec30a39  rack1

If I add up the Load column, I get 4,632.67GiB.  After overnight:

[joeo@calypso ~]$ nodetool status -r
Datacenter: datacenter1
=======================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
--  Address                     Load        Tokens  Owns (effective)  
Host ID                               Rack
UN  nyx.querymasters.com        535.16 GiB  250 38.0%             
07bccfce-45f1-41a3-a5c4-ee748a7a9b98  rack1
UN  enceladus.querymasters.com  568.87 GiB  200 30.4%             
660f476c-a124-4ca0-b55f-75efe56370da  rack1
UN  calypso.querymasters.com    578.81 GiB  200 30.4%             
e83aa851-69b4-478f-88f6-60e657ea6539  rack1
UN  fortuna.querymasters.com    593.82 GiB  200 30.4%             
49e4f571-7d1c-4e1e-aca7-5bbe076596f7  rack1
UN  charon.querymasters.com     602.38 GiB  200 30.4%             
d9702f96-256e-45ae-8e12-69a42712be50  rack1
UN  eros.querymasters.com       588.3 GiB   200 30.4%             
93f9cb0f-ea71-4e3d-b62a-f0ea0e888c47  rack1
UN  hercules.querymasters.com   12.31 GiB   4 0.6%              
a1a16910-9167-4174-b34b-eb859d36347e  rack1
UN  ursula.querymasters.com     610.54 GiB  200 30.3%             
4bbbe57c-6219-41e5-bbac-de92a9594d53  rack1
UN  gaia.querymasters.com       480.53 GiB  200 30.5%             
b2e5366e-8386-40ec-a641-27944a5a7cfa  rack1
UN  chaos.querymasters.com      358.44 GiB  120 18.2%             
08a19658-40be-4e55-8709-812b3d4ac750  rack1
UN  pallas.querymasters.com     537.94 GiB  200 30.4%             
b74b6e65-af63-486a-b07f-9e304ec30a39  rack1

If I add up the Load, I get 5,466.79GiB.  I have added no new data to 
the cluster, yet the Load has increased by 834.  Is this expected behavior?
Thank you!

-Joe


Re: 4.0.1 - adding a node

Posted by Joe Obernberger <jo...@gmail.com>.
Hi Erick - yes I do.  There is a good chance that I'll remove hercules 
from the cluster (4 tokens), it was the first system that I put 
cassandra on.  Chaos has less drives than the other systems.

-joe

On 10/29/2021 7:57 PM, Erick Ramirez wrote:
> Out of curiosity, what's up with hercules and chaos? Do you have 
> different hardware deployed in your cluster? Cheers!
>
>
> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> 
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Re: 4.0.1 - adding a node

Posted by Erick Ramirez <er...@datastax.com>.
Out of curiosity, what's up with hercules and chaos? Do you have different
hardware deployed in your cluster? Cheers!

>

Re: 4.0.1 - adding a node

Posted by Joe Obernberger <jo...@gmail.com>.
Thank you Jeff - after cleanup:

UN  nyx.querymasters.com        535.15 GiB  250     38.0% 
07bccfce-45f1-41a3-a5c4-ee748a7a9b98  rack1
UN  enceladus.querymasters.com  468.97 GiB  200 30.4%             
660f476c-a124-4ca0-b55f-75efe56370da  rack1
UN  calypso.querymasters.com    470.21 GiB  200 30.4%             
e83aa851-69b4-478f-88f6-60e657ea6539  rack1
UN  fortuna.querymasters.com    593.82 GiB  200 30.4%             
49e4f571-7d1c-4e1e-aca7-5bbe076596f7  rack1
UN  charon.querymasters.com     475.65 GiB  200 30.4%             
d9702f96-256e-45ae-8e12-69a42712be50  rack1
UN  eros.querymasters.com       476.46 GiB  200 30.4%             
93f9cb0f-ea71-4e3d-b62a-f0ea0e888c47  rack1
UN  hercules.querymasters.com   12.31 GiB   4 0.6%              
a1a16910-9167-4174-b34b-eb859d36347e  rack1
UN  ursula.querymasters.com     481.43 GiB  200 30.3%             
4bbbe57c-6219-41e5-bbac-de92a9594d53  rack1
UN  gaia.querymasters.com       436.18 GiB  200 30.5%             
b2e5366e-8386-40ec-a641-27944a5a7cfa  rack1
UN  chaos.querymasters.com      289.83 GiB  120 18.2%             
08a19658-40be-4e55-8709-812b3d4ac750  rack1
UN  pallas.querymasters.com     447.83 GiB  200 30.4%             
b74b6e65-af63-486a-b07f-9e304ec30a39  rack1

-Joe

On 10/28/2021 4:05 PM, Jeff Jirsa wrote:
> I think you started at 4930 and ended at 5461, difference of 530 
> (which is the new host)
>
> If you run `nodetool cleanup` on every other node in the cluster, you 
> likely drop back down close to 4931 again.
>
>
>
> On Thu, Oct 28, 2021 at 12:04 PM Joe Obernberger 
> <jo...@gmail.com> wrote:
>
>     I recently added a node to a cluster.  Immediately after adding the
>     node, the cluster status (nyx is the new node):
>
>     UJ nyx.querymasters.com <http://nyx.querymasters.com> 181.25 KiB
>     250     ?
>     07bccfce-45f1-41a3-a5c4-ee748a7a9b98 rack1
>     UN enceladus.querymasters.com <http://enceladus.querymasters.com>
>     569.53 GiB  200 35.1%
>     660f476c-a124-4ca0-b55f-75efe56370da  rack1
>     UN calypso.querymasters.com <http://calypso.querymasters.com>
>     578.79 GiB  200 34.8%
>     e83aa851-69b4-478f-88f6-60e657ea6539  rack1
>     UN fortuna.querymasters.com <http://fortuna.querymasters.com>
>     593.79 GiB  200 34.6%
>     49e4f571-7d1c-4e1e-aca7-5bbe076596f7  rack1
>     UN charon.querymasters.com <http://charon.querymasters.com> 603.3
>     GiB   200 35.0%
>     d9702f96-256e-45ae-8e12-69a42712be50  rack1
>     UN eros.querymasters.com <http://eros.querymasters.com> 589.04
>     GiB  200 34.2%
>     93f9cb0f-ea71-4e3d-b62a-f0ea0e888c47  rack1
>     UN hercules.querymasters.com <http://hercules.querymasters.com>
>     12.31 GiB   4 0.7%
>     a1a16910-9167-4174-b34b-eb859d36347e  rack1
>     UN ursula.querymasters.com <http://ursula.querymasters.com> 611.65
>     GiB  200 35.0%
>     4bbbe57c-6219-41e5-bbac-de92a9594d53  rack1
>     UN gaia.querymasters.com <http://gaia.querymasters.com> 480.62
>     GiB  200 34.7%
>     b2e5366e-8386-40ec-a641-27944a5a7cfa  rack1
>     UN chaos.querymasters.com <http://chaos.querymasters.com> 358.07
>     GiB  120 20.5%
>     08a19658-40be-4e55-8709-812b3d4ac750  rack1
>     UN pallas.querymasters.com <http://pallas.querymasters.com> 537.88
>     GiB  200 35.3%
>     b74b6e65-af63-486a-b07f-9e304ec30a39  rack1
>
>     If I add up the Load column, I get 4,632.67GiB.  After overnight:
>
>     [joeo@calypso ~]$ nodetool status -r
>     Datacenter: datacenter1
>     =======================
>     Status=Up/Down
>     |/ State=Normal/Leaving/Joining/Moving
>     --  Address                     Load        Tokens  Owns (effective)
>     Host ID                               Rack
>     UN nyx.querymasters.com <http://nyx.querymasters.com> 535.16 GiB 
>     250 38.0%
>     07bccfce-45f1-41a3-a5c4-ee748a7a9b98  rack1
>     UN enceladus.querymasters.com <http://enceladus.querymasters.com>
>     568.87 GiB  200 30.4%
>     660f476c-a124-4ca0-b55f-75efe56370da  rack1
>     UN calypso.querymasters.com <http://calypso.querymasters.com>
>     578.81 GiB  200 30.4%
>     e83aa851-69b4-478f-88f6-60e657ea6539  rack1
>     UN fortuna.querymasters.com <http://fortuna.querymasters.com>
>     593.82 GiB  200 30.4%
>     49e4f571-7d1c-4e1e-aca7-5bbe076596f7  rack1
>     UN charon.querymasters.com <http://charon.querymasters.com> 602.38
>     GiB  200 30.4%
>     d9702f96-256e-45ae-8e12-69a42712be50  rack1
>     UN eros.querymasters.com <http://eros.querymasters.com> 588.3
>     GiB   200 30.4%
>     93f9cb0f-ea71-4e3d-b62a-f0ea0e888c47  rack1
>     UN hercules.querymasters.com <http://hercules.querymasters.com>
>     12.31 GiB   4 0.6%
>     a1a16910-9167-4174-b34b-eb859d36347e  rack1
>     UN ursula.querymasters.com <http://ursula.querymasters.com> 610.54
>     GiB  200 30.3%
>     4bbbe57c-6219-41e5-bbac-de92a9594d53  rack1
>     UN gaia.querymasters.com <http://gaia.querymasters.com> 480.53
>     GiB  200 30.5%
>     b2e5366e-8386-40ec-a641-27944a5a7cfa  rack1
>     UN chaos.querymasters.com <http://chaos.querymasters.com> 358.44
>     GiB  120 18.2%
>     08a19658-40be-4e55-8709-812b3d4ac750  rack1
>     UN pallas.querymasters.com <http://pallas.querymasters.com> 537.94
>     GiB  200 30.4%
>     b74b6e65-af63-486a-b07f-9e304ec30a39  rack1
>
>     If I add up the Load, I get 5,466.79GiB.  I have added no new data to
>     the cluster, yet the Load has increased by 834.  Is this expected
>     behavior?
>     Thank you!
>
>     -Joe
>
>
> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> 
> 	Virus-free. www.avg.com 
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>
>
> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

Re: 4.0.1 - adding a node

Posted by Jeff Jirsa <jj...@gmail.com>.
I think you started at 4930 and ended at 5461, difference of 530 (which is
the new host)

If you run `nodetool cleanup` on every other node in the cluster, you
likely drop back down close to 4931 again.



On Thu, Oct 28, 2021 at 12:04 PM Joe Obernberger <
joseph.obernberger@gmail.com> wrote:

> I recently added a node to a cluster.  Immediately after adding the
> node, the cluster status (nyx is the new node):
>
> UJ  nyx.querymasters.com        181.25 KiB 250     ?
> 07bccfce-45f1-41a3-a5c4-ee748a7a9b98 rack1
> UN  enceladus.querymasters.com  569.53 GiB  200 35.1%
> 660f476c-a124-4ca0-b55f-75efe56370da  rack1
> UN  calypso.querymasters.com    578.79 GiB  200 34.8%
> e83aa851-69b4-478f-88f6-60e657ea6539  rack1
> UN  fortuna.querymasters.com    593.79 GiB  200 34.6%
> 49e4f571-7d1c-4e1e-aca7-5bbe076596f7  rack1
> UN  charon.querymasters.com     603.3 GiB   200 35.0%
> d9702f96-256e-45ae-8e12-69a42712be50  rack1
> UN  eros.querymasters.com       589.04 GiB  200 34.2%
> 93f9cb0f-ea71-4e3d-b62a-f0ea0e888c47  rack1
> UN  hercules.querymasters.com   12.31 GiB   4 0.7%
> a1a16910-9167-4174-b34b-eb859d36347e  rack1
> UN  ursula.querymasters.com     611.65 GiB  200 35.0%
> 4bbbe57c-6219-41e5-bbac-de92a9594d53  rack1
> UN  gaia.querymasters.com       480.62 GiB  200 34.7%
> b2e5366e-8386-40ec-a641-27944a5a7cfa  rack1
> UN  chaos.querymasters.com      358.07 GiB  120 20.5%
> 08a19658-40be-4e55-8709-812b3d4ac750  rack1
> UN  pallas.querymasters.com     537.88 GiB  200 35.3%
> b74b6e65-af63-486a-b07f-9e304ec30a39  rack1
>
> If I add up the Load column, I get 4,632.67GiB.  After overnight:
>
> [joeo@calypso ~]$ nodetool status -r
> Datacenter: datacenter1
> =======================
> Status=Up/Down
> |/ State=Normal/Leaving/Joining/Moving
> --  Address                     Load        Tokens  Owns (effective)
> Host ID                               Rack
> UN  nyx.querymasters.com        535.16 GiB  250 38.0%
> 07bccfce-45f1-41a3-a5c4-ee748a7a9b98  rack1
> UN  enceladus.querymasters.com  568.87 GiB  200 30.4%
> 660f476c-a124-4ca0-b55f-75efe56370da  rack1
> UN  calypso.querymasters.com    578.81 GiB  200 30.4%
> e83aa851-69b4-478f-88f6-60e657ea6539  rack1
> UN  fortuna.querymasters.com    593.82 GiB  200 30.4%
> 49e4f571-7d1c-4e1e-aca7-5bbe076596f7  rack1
> UN  charon.querymasters.com     602.38 GiB  200 30.4%
> d9702f96-256e-45ae-8e12-69a42712be50  rack1
> UN  eros.querymasters.com       588.3 GiB   200 30.4%
> 93f9cb0f-ea71-4e3d-b62a-f0ea0e888c47  rack1
> UN  hercules.querymasters.com   12.31 GiB   4 0.6%
> a1a16910-9167-4174-b34b-eb859d36347e  rack1
> UN  ursula.querymasters.com     610.54 GiB  200 30.3%
> 4bbbe57c-6219-41e5-bbac-de92a9594d53  rack1
> UN  gaia.querymasters.com       480.53 GiB  200 30.5%
> b2e5366e-8386-40ec-a641-27944a5a7cfa  rack1
> UN  chaos.querymasters.com      358.44 GiB  120 18.2%
> 08a19658-40be-4e55-8709-812b3d4ac750  rack1
> UN  pallas.querymasters.com     537.94 GiB  200 30.4%
> b74b6e65-af63-486a-b07f-9e304ec30a39  rack1
>
> If I add up the Load, I get 5,466.79GiB.  I have added no new data to
> the cluster, yet the Load has increased by 834.  Is this expected behavior?
> Thank you!
>
> -Joe
>
>