QQ what is the best way to drop a realtime server ...
# troubleshootingp
Pradeep
09/16/2020, 1:40 AMQQ what is the best way to drop a realtime server and move the segments to a different server?
Would disabling the server and rebalancing would do the trick?
n
Neha Pawar
09/16/2020, 1:41 AM
1. untag server to drop
2. tag new server
3. rebalance
https://docs.pinot.apache.org/operators/operating-pinot/rebalance/rebalance-servers
Neha Pawar
09/16/2020, 1:41 AM
pay attention to all knobs in the rebalance command
p
Pradeep
09/16/2020, 1:42 AMthanks, will try that
Pradeep
09/16/2020, 2:01 AMcurl -X POST <http://localhost:9000/instances/Broker_><ip>_8060/updateTags?tags=untagged_BROKERPradeep
09/16/2020, 2:01 AMis this something new?
n
Neha Pawar
09/16/2020, 2:04 AM
kinda new. It’s not in any release, but has been on master for a few weeks
p
Pradeep
09/16/2020, 2:04 AMah that endpoint doesn’t work for me, is there any other workaround?
Pradeep
09/16/2020, 2:05 AMhow about if I disable the server and then rebalance, would rebalance work?
n
Neha Pawar
09/16/2020, 2:05 AM
no, it has to be untagged
Neha Pawar
09/16/2020, 2:06 AM
there is another PUT API on the instance. Butthat is a little buggy. Trying to get an example for you
p
Pradeep
09/16/2020, 2:06 AMcool cool thanks
Pradeep
09/16/2020, 2:06 AMotherwise just updating the controller would be good?
Pradeep
09/16/2020, 2:07 AM*as in pulling the latest code
Pradeep
09/16/2020, 2:07 AM(that’s the worst case)
n
Neha Pawar
09/16/2020, 2:08 AM
if you’re comfortable, you can directly edit the tags in Zooinspector Cluster/CONFIGS/PARTICIPANTS/Servernode
Neha Pawar
09/16/2020, 2:08 AM
yes, pulling latest code will have the API
p
Pradeep
09/16/2020, 2:11 AMjust change to “TAG_LIST”: [] rite?
Pradeep
09/16/2020, 2:12 AMor change the tag to untagged_SERVER?
Pradeep
09/16/2020, 2:12 AMMaybe updating with latest code is the better option, I will go with that
Pradeep
09/16/2020, 2:12 AMThanks a lot
n
Neha Pawar
09/16/2020, 2:15 AM
both of your options will work
Neha Pawar
09/16/2020, 2:16 AM
[] or [“untagged_OFFLINE”]
Neha Pawar
09/16/2020, 2:18 AM
Screen Shot 2020-09-15 at 7.16.40 PM.png
Neha Pawar
09/16/2020, 2:19 AM
Copy code
curl -X PUT "<http://localhost:9000/instances/Server_10.1.10.51_7000>" -H "accept: application/json" -H "Content-Type: application/json" -d "{ \"host\": \"10.1.10.51\", \"port\": \"7000\", \"type\": \"SERVER\", \"tags\": [ \"newName_OFFLINE\", \"DefaultTenant_REALTIME\" ]}"p
Pradeep
09/16/2020, 2:19 AMah yeah I see this one
n
Neha Pawar
09/16/2020, 2:20 AM
if you decide to use this one, please note that the output of GET doesn’t match input of PUT (thats the bug). The input i’ve used here is slightly different
p
Pradeep
09/16/2020, 2:21 AMoh got it, letme try this and see
Pradeep
09/16/2020, 2:21 AMjust to double confirm, server I am untagging is a realtime server, so it would be still untagged_OFFLINE?
Pradeep
09/16/2020, 2:21 AM(I could set it to “” too, but just wondering)
n
Neha Pawar
09/16/2020, 2:22 AM
you can use untagged_OFFLINE, or untagged_REALTIME, or “”, either way is fine
Neha Pawar
09/16/2020, 2:23 AM
that’s more for cluster management. knowing what you had assigned that server for (realtime of offline) even after untagging
p
Pradeep
09/16/2020, 2:23 AMgot it, thanks trying it now
Pradeep
09/16/2020, 2:26 AMAwesome, thanks a lot it worked
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