Hello, I have several versions of Flink (1.17.0, 1.18.0, 1.18.1 and 1.19.0) on my server. I am still trying it out (on & off), and I was running a job for sync a table from mysql to elasticsearch and it was running find without any problems ( I was using 1.18.1 version). But after a few weeks, I forgot about it and check the dashboard and no job is running. But the strange part is there are 0 available task (I config it to have 10 tasks).
I tried restarting the service but still it show 0 available tasks. I even try using different versions and all of them (except 1.17.0) has no available tasks. So now I am back using the 1.17.0. When I checked the log it has this message: ----- Tokens update task not started because either no tokens obtained or none of the tokens specified its renewal date ----- Is it because of that? and what is the solution? Appreciate for all the help. Thanks