Problem with Dspace: I take too long to respond

[Leidy Madroñero]

Greetings to all, I have a problem with dpsace and is that 3 days ago it is not possible to load the interface, it stays loading the browser and takes too long to respond.

I paste the log that appears when I start the server.

I appreciate your attention and collaboration.

Greetings, Lady.

28-May-2019 08:26:01.550 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/var/lib/tomcat8/common/classes], exists: [false], isDirectory: [false], canRead: [false]

28-May-2019 08:26:01.552 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/var/lib/tomcat8/common], exists: [false], isDirectory: [false], canRead: [false]

28-May-2019 08:26:01.552 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/usr/share/tomcat8/common/classes], exists: [false], isDirectory: [false], canRead: [false]

28-May-2019 08:26:01.553 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/var/lib/tomcat8/server/classes], exists: [false], isDirectory: [false], canRead: [false]

28-May-2019 08:26:01.554 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/var/lib/tomcat8/server], exists: [false], isDirectory: [false], canRead: [false]

28-May-2019 08:26:01.554 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/usr/share/tomcat8/server/classes], exists: [false], isDirectory: [false], canRead: [false]

28-May-2019 08:26:01.554 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/usr/share/tomcat8/server], exists: [false], isDirectory: [false], canRead: [false]

28-May-2019 08:26:01.554 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/var/lib/tomcat8/shared/classes], exists: [false], isDirectory: [false], canRead: [false]

28-May-2019 08:26:01.555 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/var/lib/tomcat8/shared], exists: [false], isDirectory: [false], canRead: [false]

28-May-2019 08:26:01.555 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/usr/share/tomcat8/shared/classes], exists: [false], isDirectory: [false], canRead: [false]

28-May-2019 08:26:01.555 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/usr/share/tomcat8/shared], exists: [false], isDirectory: [false], canRead: [false]

log4j:WARN No appenders could be found for logger (org.dspace.servicemanager.DSpaceKernelInit).

log4j:WARN Please initialize the log4j system properly.

log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

28-May-2019 08:26:01.867 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version:        Apache Tomcat/8.5.14 (Debian)

28-May-2019 08:26:01.867 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built:          Aug 24 2018 19:44:12 UTC

28-May-2019 08:26:01.867 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server number:         8.5.14.0

28-May-2019 08:26:01.867 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name:               Linux

28-May-2019 08:26:01.867 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version:            4.9.0-6-amd64

28-May-2019 08:26:01.867 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture:          amd64

28-May-2019 08:26:01.867 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             /usr/lib/jvm/java-8-openjdk-amd64/jre

28-May-2019 08:26:01.868 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           1.8.0_212-8u212-b01-1~deb9u1-b01

28-May-2019 08:26:01.868 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            Oracle Corporation

28-May-2019 08:26:01.868 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE:         /var/lib/tomcat8

28-May-2019 08:26:01.868 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME:         /usr/share/tomcat8

28-May-2019 08:26:01.868 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=/var/lib/tomcat8/conf/logging.properties

28-May-2019 08:26:01.868 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager

28-May-2019 08:26:01.868 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.awt.headless=true

28-May-2019 08:26:01.868 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -XX:+UseConcMarkSweepGC

28-May-2019 08:26:01.868 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048

28-May-2019 08:26:01.869 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources

28-May-2019 08:26:01.869 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=/var/lib/tomcat8

28-May-2019 08:26:01.869 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=/usr/share/tomcat8

28-May-2019 08:26:01.869 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=/tmp/tomcat8-tomcat8-tmp

28-May-2019 08:26:01.869 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent Loaded APR based Apache Tomcat Native library 1.2.12 using APR version 1.5.2.

28-May-2019 08:26:01.869 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].

28-May-2019 08:26:01.869 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true]

28-May-2019 08:26:01.872 INFO [main] org.apache.catalina.core.AprLifecycleListener.initializeSSL OpenSSL successfully initialized (OpenSSL 1.0.2r  26 Feb 2019)

28-May-2019 08:26:01.941 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"]

28-May-2019 08:26:01.955 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read

28-May-2019 08:26:01.957 INFO [main] org.apache.catalina.startup.Catalina.load Initialization processed in 379 ms

28-May-2019 08:26:01.978 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service Catalina

** Memory report

 freeMemory: 105852440

 totalMemory: 255459328

 maxMemory: 4135059456