1. Representation
java.util.concurrent.TimeoutException at java.util.concurrent.FutureTask.get(FutureTask.java:205) at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.awaitConnection(OpenConnectionCommand.java:113) at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.lambda$execute$1(OpenConnectionCommand.java:97) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)
2. go into the causes and find the log in
Start SQuirreL, by Windows-> View SQuirrel Logs View the Run Log.
See could not resolve do2cloud02, please check your network
in the hosts file to add the records after the problem is solved
Reference: https://yq.aliyun.com/articles/630486