Comments (6)
tglman
commented on June 10, 2024
1
Hi,
yes the node names participating in the cluster are "node1695048481292","node1694781327402","node1694781302274","node1695048478158","node1695050121611","node1695245312502","node1695245312166","node1695245315577"
if you are aware what are the name of the node currently running you can remove them with the command:
https://orientdb.com/docs/3.2.x/sql/SQL-HA-Remove-Server.html?highlight=HA%20REMOVE#sql---ha-remove-server
Also i see that the name seems generated at runtime so consider to configure the name as specified here https://orientdb.com/docs/3.2.x/distributed/Distributed-Configuration.html or setting the ORIENTDB_NODE_NAME environment variable for each instance.
I have the feeling that this problem raised with server restarts and new node names generation that added up new node names in the node list.
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tglman
commented on June 10, 2024
Hi,
yes the quorum should be based on the number of nodes, can you check how many nodes are listed in the distributed-config.json that is inside the database folder ?
Bye
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barrettc
commented on June 10, 2024
@tglman This is the content of my distributed-config.json:
{"@type":"d","@rid":"#0:3","@version":29,"version":55,"autoDeploy":true,"readQuorum":1,"writeQuorum":"majority","readYourWrites":true,"newNodeStrategy":"dynamic","servers":{"@type":"d","@version":0,"*":"master"},"clusters":{"@type"
:"d","@version":0,"internal":{"@type":"d","@version":0},"*":{"@type":"d","@version":0,"servers":["node1694781302274","node1694781327402","node1695048481292","node1695048478158","node1695050121611","node1695245312502","node169524531
2166","node1695245315577","<NEW_NODE>"]},"movie_1":{"@type":"d","@version":0,"servers":["node1695245312502","node1694781302274","node1695048478158","node1694781327402","node1695048481292","node1695050121611","node1695245312166","no
de1695245315577","<NEW_NODE>"]},"movie_2":{"@type":"d","@version":0,"servers":["node1694781302274","node1694781327402","node1695048481292","node1695048478158","node1695050121611","node1695245312502","node1695245312166","node1695245
315577","<NEW_NODE>"]},"character_1":{"@type":"d","@version":0,"servers":["node1694781302274","node1694781327402","node1695048481292","node1695048478158","node1695050121611","node1695245312502","node1695245312166","node169524531557
7","<NEW_NODE>"]},"character_2":{"@type":"d","@version":0,"servers":["node1695245315577","node1695048481292","node1695050121611","node1694781302274","node1694781327402","node1695048478158","node1695245312502","node1695245312166","<
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"]},"group_2":{"@type":"d","@version":0,"servers":["node1695245315577","node1694781302274","node1695050121611","node1694781327402","node1695048481292","node1695048478158","node1695245312502","node1695245312166","<NEW_NODE>"]},"appe
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95245312166","<NEW_NODE>"]},"pagerankresult_1":{"@type":"d","@version":0,"servers":["node1695245312502","node1694781302274","node1694781327402","node1695048481292","node1695048478158","node1695050121611","node1695245312166","node16
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95245315577","<NEW_NODE>"]}}}
I'm not sure how to interpret this but it seems like a lot more than 3 nodes are listed here. Should I try uninstalling/reinstalling the Helm chart?
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barrettc
commented on June 10, 2024
Thanks - I'll clean this up and report back
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barrettc
commented on June 10, 2024
@tglman One question - I'm using the OrientDB Helm chart to manage the installation on my k8s cluster. Do you know a good way to specify multiple node names using this method of installation?
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tglman
commented on June 10, 2024
Hi,
I'm not an expert of helm chart, and looking at it right now it doesn't seems to be a way to set this, so probably that need some evolution to map the OrientDB node name to some constant name given by the cluster, from the point of OrientDB the way that the name can be provided is by the environment variable ORIENTDB_NODE_NAME, or by injecting the name in the configuration that looking at the helm chart is here https://github.com/orientechnologies/orientdb-helm/blob/master/templates/configmap.yaml#L89
another way could be attach the HA remove node command as the pre-step of the controlled shutdown of the node to not leave the node in the configuration. Even though this cannot be made automatic on disconnection because otherwise will introduce split brain issues.
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