I have a cluster that has ES 6.8.15 install and see that 6.8.18 is there to upgrade to. This should be a straight forward upgrade correct. Everything is currently working in our cluster, but I wanted to make sure there were no gotchas that I’m overlooking before updating. Eventually, we will move to 7.x but that another day update.
Also, just for my knowledge. Let’s say I have my current nodes at 6.8.15 and add a new node that’s at 6.8.18… Will that break the cluster cause one node is at a higher version?
Also, to upgrade, I should be able to simply upgrade the nodes and reboot the cluster correct (I don’t have to do a rolling upgrade, I can bring it down temporarily). Is my thinking correct?
Is it possible to have one node be at a point version higher than the other nodes? (Example: one node at 6.8.18 while the other are at 6.8.15).
Also, the upgrade guide doesn’t really address 6.8.15 to .18. But I guess I could stop the service on each node and upgrade the installs on the server to get .18 and turn on the service again.
One last question,
Should I do the upgrade in any particular order if you have a cluster of specialized nodes?
Apache, Apache Lucene, Apache Hadoop, Hadoop, HDFS and the yellow elephant
logo are trademarks of the
Apache Software Foundation
in the United States and/or other countries.