I think this fixed in 0.9 Andreas Weise <andreas.we...@gmail.com> 于2020年7月16日周四 下午4:52写道：
> Hi, today we faced a deadlock in our 0.8.2 production environment. Find > the thread dump attached. > Found one Java-level deadlock: > ============================= > "qtp459857341-184038": > waiting to lock monitor 0x00007f0c58018238 (object 0x00000003f3079738, a > java.util.ArrayList), > which is held by "qtp459857341-183751" > "qtp459857341-183751": > waiting to lock monitor 0x00007f0bcc044358 (object 0x0000000402537780, a > java.util.ArrayList), > which is held by "qtp459857341-183682" > "qtp459857341-183682": > waiting to lock monitor 0x00007f0c2c19d348 (object 0x00000005d7d54268, a > java.util.LinkedList), > which is held by "qtp459857341-183610" > "qtp459857341-183610": > waiting to lock monitor 0x00007f0bcc044358 (object 0x0000000402537780, a > java.util.ArrayList), > which is held by "qtp459857341-183682" > > Java stack information for the threads listed above: > =================================================== > "qtp459857341-184038": > at org.apache.zeppelin.notebook.Note.getParagraph(Note.java:572) > - waiting to lock <0x00000003f3079738> (a java.util.ArrayList) > at > org.apache.zeppelin.rest.HeliumRestApi.suggest(HeliumRestApi.java:117) > at sun.reflect.GeneratedMethodAccessor36.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > > .... > "qtp459857341-183610": > at org.apache.zeppelin.notebook.Note.getParagraphs(Note.java:750) > - waiting to lock <0x0000000402537780> (a java.util.ArrayList) > at > org.apache.zeppelin.notebook.Notebook.getJobListByUnixTime(Notebook.java:872) > at > org.apache.zeppelin.socket.NotebookServer.broadcastUpdateNoteJobInfo(NotebookServer.java:568) > at > org.apache.zeppelin.socket.NotebookServer$NotebookInformationListener.onParagraphRemove(NotebookServer.java:2194) > at > org.apache.zeppelin.notebook.Notebook.onParagraphRemove(Notebook.java:1084) > at org.apache.zeppelin.notebook.Note.removeParagraph(Note.java:446) > - locked <0x00000005d7d54268> (a java.util.LinkedList) > at > org.apache.zeppelin.rest.NotebookRestApi.deleteParagraph(NotebookRestApi.java:620) > at sun.reflect.GeneratedMethodAccessor51.invoke(Unknown Source) > ... > > Please let me know, if that is already fixed in > 0.8.2 or requires a Jira > Ticket? > > Best regards > Andreas > -- Best Regards Jeff Zhang
