How to Solve Azkaban Error Chung during uploading files to DB

Error:
Error Chunking during uploading files to db…
azkaban-web-server error：
azkaban.project.ProjectManagerException: Error Chunking during uploading files to db…
at azkaban.project.JdbcProjectLoader.uploadFileInChunks(JdbcProjectLoader.java:503)
at azkaban.project.JdbcProjectLoader.uploadProjectFile(JdbcProjectLoader.java:382)
at azkaban.project.JdbcProjectLoader.uploadProjectFile(JdbcProjectLoader.java:365)
at azkaban.storage.DatabaseStorage.put(DatabaseStorage.java:55)
at azkaban.storage.StorageManager.uploadProject(StorageManager.java:95)
at azkaban.project.ProjectManager.uploadProject(ProjectManager.java:503)
at azkaban.webapp.servlet.ProjectManagerServlet.ajaxHandleUpload(ProjectManagerServlet.java:1713)
at azkaban.webapp.servlet.ProjectManagerServlet.handleUpload(ProjectManagerServlet.java:1789)
at azkaban.webapp.servlet.ProjectManagerServlet.handleMultiformPost(ProjectManagerServlet.java:197)
at azkaban.webapp.servlet.LoginAbstractAzkabanServlet.doPost(LoginAbstractAzkabanServlet.java:319)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:401)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:945)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
at org.mortbay.jetty.security.SslSocketConnector$SslConnection.run(SslSocketConnector.java:713)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

Problem Cause.
azkaban is unable to update the database.
Solution, restart the database.

 

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