Hi, I don't see a how to have a random behavior (race condition) here. Are you sure that you database connection is working and that you are not getting the sense of some working item just from your browser cache and the system was instead unable to serve any request?
Have you identified other oddity in the system or do you see anything strange on the database logs? Andrea On Tue, 2019-07-23 at 16:26 -0700, IBARU TICS S.A.S wrote: > Hi. > > DspaceCris from one moment to another, does not allow me to view the > items > > > I send the error and I hope you can help me > > David. > > > > 23-Jul-2019 23:19:36.360 SEVERE [http-nio-8080-exec-23] > org.apache.catalina.core.StandardWrapperValve.invoke > Servlet.service() for servlet [handle] in context with path [/jspui] > threw exception [java.lang.NullPointerException] with root cause > java.lang.NullPointerException > at > org.dspace.storage.rdbms.DatabaseManager.queryTable(DatabaseManager.j > ava:237) > at > org.dspace.storage.rdbms.DatabaseManager.querySingleTable(DatabaseMan > ager.java:454) > at > org.dspace.storage.rdbms.DatabaseManager.findByUnique(DatabaseManager > .java:620) > at > org.dspace.handle.HandleManager.findHandleInternal(HandleManager.java > :535) > at > org.dspace.handle.HandleManager.resolveToObject(HandleManager.java:32 > 2) > at > org.dspace.app.webui.servlet.HandleServlet.doDSGet(HandleServlet.java > :128) > at > org.dspace.app.webui.servlet.DSpaceServlet.processRequest(DSpaceServl > et.java:119) > at > org.dspace.app.webui.servlet.DSpaceServlet.doGet(DSpaceServlet.java:6 > 7) > at > javax.servlet.http.HttpServlet.service(HttpServlet.java:635) > at > javax.servlet.http.HttpServlet.service(HttpServlet.java:742) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl > icationFilterChain.java:231) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF > ilterChain.java:166) > at > org.dspace.rdf.negotiation.NegotiationFilter.doFilter(NegotiationFilt > er.java:59) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl > icationFilterChain.java:193) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF > ilterChain.java:166) > at > org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWeb > appServletFilter.java:78) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl > icationFilterChain.java:193) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF > ilterChain.java:166) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV > alve.java:199) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextV > alve.java:96) > at > org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authentica > torBase.java:493) > > -- > All messages to this mailing list should adhere to the DuraSpace Code > of Conduct: https://duraspace.org/about/policies/code-of-conduct/ > --- > You received this message because you are subscribed to the Google > Groups "DSpace Community" group. > To unsubscribe from this group and stop receiving emails from it, > send an email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/dspace-community/2ceec4fb-2acb-4a2c-9144-ccd9d1a1b1d4%40googlegroups.com > . > -- Questo messaggio e' stato analizzato da Libra ESVA ed e' risultato non infetto. This message was scanned by Libra ESVA and is believed to be clean. -- All messages to this mailing list should adhere to the DuraSpace Code of Conduct: https://duraspace.org/about/policies/code-of-conduct/ --- You received this message because you are subscribed to the Google Groups "DSpace Community" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/dspace-community/2a4284721cbba7d79dd75a6c34ccf0bb61c08a3f.camel%404science.it.
