Great point @Corneau Damien. I got an following error when i control the paragraph.
ERROR [2016-06-20 11:41:02,473] ({qtp1424826835-36} NotebookServer.java[onMessage]:232) - Can't handle message org.apache.shiro.UnavailableSecurityManagerException: No SecurityManager accessible to the calling code, either bound to the org.apache.shiro.util.ThreadContext or as a vm static singleton. This is an invalid application configuration. at org.apache.shiro.SecurityUtils.getSecurityManager(SecurityUtils.java:123) at org.apache.shiro.subject.Subject$Builder.<init>(Subject.java:627) at org.apache.shiro.SecurityUtils.getSubject(SecurityUtils.java:56) at org.apache.zeppelin.utils.SecurityUtils.getPrincipal(SecurityUtils.java:60) at org.apache.zeppelin.socket.NotebookServer.removeParagraph(NotebookServer.java:684) at org.apache.zeppelin.socket.NotebookServer.onMessage(NotebookServer.java:194) at org.apache.zeppelin.socket.NotebookSocket.onWebSocketText(NotebookSocket.java:56) at org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextMessage(JettyListenerEventDriver.java:128) at org.eclipse.jetty.websocket.common.message.SimpleTextMessage.messageComplete(SimpleTextMessage.java:69) at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.appendMessage(AbstractEventDriver.java:65) at org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextFrame(JettyListenerEventDriver.java:122) at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.incomingFrame(AbstractEventDriver.java:161) at org.eclipse.jetty.websocket.common.WebSocketSession.incomingFrame(WebSocketSession.java:309) at org.eclipse.jetty.websocket.common.extensions.ExtensionStack.incomingFrame(ExtensionStack.java:214) at org.eclipse.jetty.websocket.common.Parser.notifyFrame(Parser.java:220) at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:258) at org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.readParse(AbstractWebSocketConnection.java:632) at org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onFillable(AbstractWebSocketConnection.java:480) at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) at java.lang.Thread.run(Thread.java:745) 2016-06-20 11:40 GMT+09:00 Corneau Damien <cornead...@gmail.com>: > The culprit is this commit: > > https://github.com/apache/zeppelin/commit/4a0dce525304ddee8a69bffc3eee20f4bbf4f209 > > On Mon, Jun 20, 2016 at 11:33 AM, Hyung Sung Shim <hss...@nflabs.com> > wrote: > >> Hi. >> I'll take care of this issue. give me a minute. >> >> 2016-06-20 9:14 GMT+09:00 Randy Gelhausen <rgel...@gmail.com>: >> >>> Anyone else seeing this issue and/or know how to resolve it? >>> >>> I've deleted and re-cloned/rebuilt the entire project (and my maven >>> cache), restarted Chrome and my machine, but no luck. >>> >>> Still can't re-order or remove paragraphs from current master. >>> >>> On Sun, Jun 19, 2016 at 2:30 PM, Randy Gelhausen <rgel...@gmail.com> >>> wrote: >>> >>>> Filed: https://issues.apache.org/jira/browse/ZEPPELIN-1033 >>>> >>>> On Sun, Jun 19, 2016 at 1:36 PM, moon soo Lee <m...@apache.org> wrote: >>>> >>>>> Thanks for sharing the problem. >>>>> Can't see attached gif, in this mailing list. >>>>> >>>>> Do you mind create an jira issue? >>>>> >>>>> Thanks, >>>>> moon >>>>> >>>>> >>>>> On Sat, Jun 18, 2016 at 10:06 PM Randy Gelhausen <rgel...@gmail.com> >>>>> wrote: >>>>> >>>>> > I just rebuilt from master and found that in both Firefox and >>>>> Chrome, I >>>>> > can no longer remove paragraphs or re-order them via the gear icon >>>>> next to >>>>> > each paragraph. >>>>> > >>>>> > See the attached gif for an example. >>>>> > >>>>> > Did a recent merge break this functionality? >>>>> > >>>>> >>>> >>>> >>> >> >