[GIT] Check that .gitignore is working.

If you want to check which file would be added before git add . You can see by following command.

So you can see the .gitignore working or not.

If you already done git add ., then you can reverse by following command.

[Grails] ERROR ehcache.Cache – Unable to set localhost.

If you got following error when staring Grails application, especially running at linux.

ERROR ehcache.Cache - Unable to set localhost. This prevents creation of a GUID. Cause was: HostName: HostName:

org.h2.message.DbException: 入出力例外: "java.net.UnknownHostException: HostName: HostName: 名前またはサービスが不明です"
IO Exception: "java.net.UnknownHostException: HostName: HostName: 名前またはサービスが不明です" [90028-164]
at org.h2.message.DbException.get(DbException.java:158)
at org.h2.message.DbException.convert(DbException.java:273)
at org.h2.util.NetUtils.getLocalAddress(NetUtils.java:263)
at org.h2.server.web.WebServer.updateURL(WebServer.java:324)
at org.h2.server.web.WebServer.init(WebServer.java:314)
at org.h2.server.web.WebServlet.init(WebServlet.java:51)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)

Wrote in italic HostName is in your host name.

Error means it can’t resolve HostName. So you need HostName in /etc/hosts where the localhost is written.

Like this. localhost <em>HostName</em>