after the installation i have allowed the following port on my firewall using below command
sudo firewall-cmd --zone=public --add-port=8091/tcp --permanent
sudo firewall-cmd --zone=public --add-port=8092/tcp --permanent
sudo firewall-cmd --zone=public --add-port=8093/tcp --permanent
sudo firewall-cmd --zone=public --add-port=9100/tcp --permanent
sudo firewall-cmd --zone=public --add-port=11210/tcp --permanent
It seems everything was perfect but suddenly i noticed indexer service is not working and shows and error: "Cannot communicate with indexer process. Information on indexes may be stale. Will retry.
i checked indexer error log located at /opt/couchbase/var/lib/couchbase/logs/indexer.log
it shows the following error: /opt/couchbase/bin/indexer: symbol lookup error: /lib64/libk5crypto.so.3: undefined symbol: EVP_KDF_ctrl, version OPENSSL_1_1_1b
I don’t see any issues with indexer service on centos 8 (6.5.1 CE 6299). Can you please give some more details on what kind of ops were performed before you ran into this issue? can you please provide the complete server logs ? you can collect it via UI or use our CLI as well (https://docs.couchbase.com/server/5.5/clustersetup/ui-logs.html).