Re: [dspace-tech] Can't get statistics to work after upgrading from 1.8.x to 5.x

2015-12-21 Thread genevieve . turner 
On your communities, collections or items pages in the default UI 
installation you want to look for a blue icon with vertical bars of varying 
heights.  Click on this and it will take you to the stats page for that 
section.

To import the old statistics you want to use 'stats-log-converter' on your 
old dspace.log files, and then run 'stats-log-importer' to import them into 
solr.

On Friday, 18 December 2015 21:56:05 UTC+11, Tiago Delboni wrote:
>
> Hi Andrea, kudos!
>
> All I had to do was run the legacy commands and create the missing 
> "reports" directory - thank you! 
>
> Now, if these are the legacy statistics, where are the new one and how can 
> I import old stat into it?
>
> dspace@dspace-novo:/opt/dspace/deploy/bin> ./dspace stat-initial
> dspace@dspace-novo:/opt/dspace/deploy/bin> ./dspace stat-general
> dspace@dspace-novo:/opt/dspace/deploy/bin> ./dspace stat-monthly
> dspace@dspace-novo:/opt/dspace/deploy/bin> ./dspace stat-report-initial
> Unable to write to output file 
> /opt/dspace/deploy/reports//report-2005-1.html
> dspace@dspace-novo:/opt/dspace/deploy/bin> mkdir /opt/dspace/deploy/reports
> dspace@dspace-novo:/opt/dspace/deploy/bin> ./dspace stat-report-initial
> dspace@dspace-novo:/opt/dspace/deploy/bin> ./dspace stat-report-general
> dspace@dspace-novo:/opt/dspace/deploy/bin> ./dspace stat-report-monthly
>
> Em quinta-feira, 17 de dezembro de 2015 18:08:31 UTC-2, Andrea Schweer 
> escreveu:
>>
>> Hi,
>>
>> On 18/12/15 04:39, Tiago Delboni wrote:
>>
>> Hi!
>>
>> I'm working on upgrading DSpace from 1.8.2 to 5.4. I guess was able to 
>> put everything working but the statistics. Everytime I click the Statistics 
>> menu, in JSPUI, DSpace come out with a Internal Server Error.
>> Bellow is the relevant part gattered from dspace.log. Any ideas how to 
>> fix it? 
>>
>> Also, I would like to know if I can keep the historical statistics I have 
>> on 1.8.x. What I did, trying to achieve this, was to copy the contents from 
>> [dspace1.8]/log and [dspace1.8]/solr/statistics/data to [dspace5.4] and 
>> ran [dspace5.4]/bin/dspace solr-reindex-statistics.
>>
>>
>> The statistics page you're referring to (compare 
>> http://demo.dspace.org/jspui/statistics) is not related to the 
>> Solr-based usage statistics at all. Instead, this page is showing the 
>> legacy statistics populated from the log files and the .dat / .html files 
>> generated from the log files via the stat-* commands listed in the "Legacy 
>> statistics" section here: 
>> https://wiki.duraspace.org/display/DSDOC5x/Command+Line+Operations#CommandLineOperations-Legacystatistics
>>
>> My guess is that you didn't copy over the contents of the report 
>> directory (that holds these .dat and .html files); looking at the code at 
>> the line below supports that. The location of the report directory is 
>> configured in dspace.cfg:
>>
>> https://github.com/DSpace/DSpace/blob/dspace-5_x/dspace/config/dspace.cfg#L1741
>>
>> So you might like to check what you have yours set to and copy the 
>> directory across from your 1.8 [dspace] directory tree to your 5.x 
>> directory tree.
>>
>> 2015-12-17 13:15:12,864 WARN  
>> org.dspace.app.webui.servlet.InternalErrorServlet @ 
>> :session_id=0CFF63BC0604F2B56DD0EE375E575ED9:internal_error:-- URL Was: 
>> https://dspace-novo.almg.gov.br/jspui/statistics
>> -- Method: GET
>> -- Parameters were:
>>
>> java.lang.NullPointerException
>> at 
>> org.dspace.app.webui.servlet.StatisticsServlet.showStatistics(StatisticsServlet.java:121)
>>
>>
>>
>> https://github.com/DSpace/DSpace/blob/dspace-5_x/dspace-jspui/src/main/java/org/dspace/app/webui/servlet/StatisticsServlet.java#L121
>>
>> cheers,
>> Andrea
>>
>> -- 
>> Dr Andrea Schweer
>> IRR Technical Specialist, ITS Information Systems
>> The University of Waikato, Hamilton, New Zealand
>> +64-7-837 9120
>>
>>

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Re: [dspace-tech] Can't get statistics to work after upgrading from 1.8.x to 5.x

2015-12-18 Thread Tiago Delboni 
Hi Andrea, kudos!

All I had to do was run the legacy commands and create the missing 
"reports" directory - thank you! 

Now, if these are the legacy statistics, where are the new one and how can 
I import old stat into it?

dspace@dspace-novo:/opt/dspace/deploy/bin> ./dspace stat-initial
dspace@dspace-novo:/opt/dspace/deploy/bin> ./dspace stat-general
dspace@dspace-novo:/opt/dspace/deploy/bin> ./dspace stat-monthly
dspace@dspace-novo:/opt/dspace/deploy/bin> ./dspace stat-report-initial
Unable to write to output file 
/opt/dspace/deploy/reports//report-2005-1.html
dspace@dspace-novo:/opt/dspace/deploy/bin> mkdir /opt/dspace/deploy/reports
dspace@dspace-novo:/opt/dspace/deploy/bin> ./dspace stat-report-initial
dspace@dspace-novo:/opt/dspace/deploy/bin> ./dspace stat-report-general
dspace@dspace-novo:/opt/dspace/deploy/bin> ./dspace stat-report-monthly

Em quinta-feira, 17 de dezembro de 2015 18:08:31 UTC-2, Andrea Schweer 
escreveu:
>
> Hi,
>
> On 18/12/15 04:39, Tiago Delboni wrote:
>
> Hi!
>
> I'm working on upgrading DSpace from 1.8.2 to 5.4. I guess was able to put 
> everything working but the statistics. Everytime I click the Statistics 
> menu, in JSPUI, DSpace come out with a Internal Server Error.
> Bellow is the relevant part gattered from dspace.log. Any ideas how to 
> fix it? 
>
> Also, I would like to know if I can keep the historical statistics I have 
> on 1.8.x. What I did, trying to achieve this, was to copy the contents from 
> [dspace1.8]/log and [dspace1.8]/solr/statistics/data to [dspace5.4] and 
> ran [dspace5.4]/bin/dspace solr-reindex-statistics.
>
>
> The statistics page you're referring to (compare 
> http://demo.dspace.org/jspui/statistics) is not related to the Solr-based 
> usage statistics at all. Instead, this page is showing the legacy 
> statistics populated from the log files and the .dat / .html files 
> generated from the log files via the stat-* commands listed in the "Legacy 
> statistics" section here: 
> https://wiki.duraspace.org/display/DSDOC5x/Command+Line+Operations#CommandLineOperations-Legacystatistics
>
> My guess is that you didn't copy over the contents of the report directory 
> (that holds these .dat and .html files); looking at the code at the line 
> below supports that. The location of the report directory is configured in 
> dspace.cfg:
>
> https://github.com/DSpace/DSpace/blob/dspace-5_x/dspace/config/dspace.cfg#L1741
>
> So you might like to check what you have yours set to and copy the 
> directory across from your 1.8 [dspace] directory tree to your 5.x 
> directory tree.
>
> 2015-12-17 13:15:12,864 WARN  
> org.dspace.app.webui.servlet.InternalErrorServlet @ 
> :session_id=0CFF63BC0604F2B56DD0EE375E575ED9:internal_error:-- URL Was: 
> https://dspace-novo.almg.gov.br/jspui/statistics
> -- Method: GET
> -- Parameters were:
>
> java.lang.NullPointerException
> at 
> org.dspace.app.webui.servlet.StatisticsServlet.showStatistics(StatisticsServlet.java:121)
>
>
>
> https://github.com/DSpace/DSpace/blob/dspace-5_x/dspace-jspui/src/main/java/org/dspace/app/webui/servlet/StatisticsServlet.java#L121
>
> cheers,
> Andrea
>
> -- 
> Dr Andrea Schweer
> IRR Technical Specialist, ITS Information Systems
> The University of Waikato, Hamilton, New Zealand
> +64-7-837 9120
>
>

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Re: [dspace-tech] Can't get statistics to work after upgrading from 1.8.x to 5.x

2015-12-17 Thread Andrea Schweer 

  
  
Hi,

On 18/12/15 04:39, Tiago Delboni wrote:


  Hi!

I'm working on upgrading DSpace from 1.8.2 to 5.4. I guess was
able to put everything working but the statistics. Everytime I
click the Statistics menu, in JSPUI, DSpace come out with a
Internal Server Error.
Bellow is the relevant part gattered from dspace.log.
Any ideas how to fix it? 

Also, I would like to know if I can keep the historical
statistics I have on 1.8.x. What I did, trying to achieve this,
was to copy the contents from [dspace1.8]/log and [dspace1.8]/solr/statistics/data
to [dspace5.4]
and ran [dspace5.4]/bin/dspace
solr-reindex-statistics.
  


The statistics page you're referring to (compare
http://demo.dspace.org/jspui/statistics) is not related to the
Solr-based usage statistics at all. Instead, this page is showing
the legacy statistics populated from the log files and the .dat /
.html files generated from the log files via the stat-* commands
listed in the "Legacy statistics" section here:
https://wiki.duraspace.org/display/DSDOC5x/Command+Line+Operations#CommandLineOperations-Legacystatistics

My guess is that you didn't copy over the contents of the report
directory (that holds these .dat and .html files); looking at the
code at the line below supports that. The location of the report
directory is configured in dspace.cfg:
https://github.com/DSpace/DSpace/blob/dspace-5_x/dspace/config/dspace.cfg#L1741

So you might like to check what you have yours set to and copy the
directory across from your 1.8 [dspace] directory tree to your 5.x
directory tree.


  2015-12-17
  13:15:12,864 WARN 
  org.dspace.app.webui.servlet.InternalErrorServlet @
  :session_id=0CFF63BC0604F2B56DD0EE375E575ED9:internal_error:--
  URL Was: https://dspace-novo.almg.gov.br/jspui/statistics
  -- Method: GET
  -- Parameters were:
  
  java.lang.NullPointerException
      at
org.dspace.app.webui.servlet.StatisticsServlet.showStatistics(StatisticsServlet.java:121)
  


https://github.com/DSpace/DSpace/blob/dspace-5_x/dspace-jspui/src/main/java/org/dspace/app/webui/servlet/StatisticsServlet.java#L121

cheers,
Andrea
-- 
Dr Andrea Schweer
IRR Technical Specialist, ITS Information Systems
The University of Waikato, Hamilton, New Zealand
+64-7-837 9120
  




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Re: [dspace-tech] Can't get statistics to work after upgrading from 1.8.x to 5.x

2015-12-17 Thread Monika Mevenkamp 
I am getting ready to do the same uproar - and I pieced together some notes
based on
wiki-doc: https://wiki.duraspace.org/display/DSDOC5x/Upgrading+DSpace


you can test whether your solr version is outdated (probably you are ok
there since you say  everything but stats works)

# test that index is outdated   anything smaller than 3.5
/dspace/bin/dspace dsrun org.dspace.app.util.IndexVersion
/dspace/solr/statistics/data/index

but if your versions are off do the following - get yourself an uptodate
lucene-core-3.5.0.jar

# upgrade statistics index
# in home directory we have the jar parked
java -cp lucene-core-3.5.0.jar org.apache.lucene.index.IndexUpgrader
/dspace/solr/statistics/data/index/

# expect to see 3.5
/dspace/bin/dspace dsrun org.dspace.app.util.IndexVersion
/dspace/solr/statistics/data/index

#update index
ant update_solr_indexes
/dspace/bin/dspace dsrun org.dspace.app.util.IndexVersion
/dspace/solr/statistics/data/index


...
Monika Mevenkamp
http://tinyurl.com/mevenkamp

On Thu, Dec 17, 2015 at 10:39 AM, Tiago Delboni  wrote:

> Hi!
>
> I'm working on upgrading DSpace from 1.8.2 to 5.4. I guess was able to put
> everything working but the statistics. Everytime I click the Statistics
> menu, in JSPUI, DSpace come out with a Internal Server Error.
> Bellow is the relevant part gattered from dspace.log. Any ideas how to
> fix it?
>
> Also, I would like to know if I can keep the historical statistics I have
> on 1.8.x. What I did, trying to achieve this, was to copy the contents from
> [dspace1.8]/log and [dspace1.8]/solr/statistics/data to [dspace5.4] and
> ran [dspace5.4]/bin/dspace solr-reindex-statistics.
>
> 2015-12-17 13:15:12,864 WARN
> org.dspace.app.webui.servlet.InternalErrorServlet @
> :session_id=0CFF63BC0604F2B56DD0EE375E575ED9:internal_error:-- URL Was:
> https://dspace-novo.almg.gov.br/jspui/statistics
> -- Method: GET
> -- Parameters were:
>
> java.lang.NullPointerException
> at
> org.dspace.app.webui.servlet.StatisticsServlet.showStatistics(StatisticsServlet.java:121)
> at
> org.dspace.app.webui.servlet.StatisticsServlet.doDSPost(StatisticsServlet.java:68)
> at
> org.dspace.app.webui.servlet.StatisticsServlet.doDSGet(StatisticsServlet.java:49)
> at
> org.dspace.app.webui.servlet.DSpaceServlet.processRequest(DSpaceServlet.java:119)
> at
> org.dspace.app.webui.servlet.DSpaceServlet.doGet(DSpaceServlet.java:67)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
> at
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
> at
> org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
> at
> org.apache.coyote.ajp.AbstractAjpProcessor.process(AbstractAjpProcessor.java:844)
> at
> org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
> at
> org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1526)
> at
> org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1482)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at
> org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
> at java.lang.Thread.run(Thread.java:745)
> 2015-12-17 13:15:12,865 WARN  org.dspace.app.webui.util.U

Re: [dspace-tech] Can't get statistics to work after upgrading from 1.8.x to 5.x

2015-12-17 Thread Tiago Delboni 
Hi Monika!

Index version looks good:

dspace@dspace-novo:/opt/dspace/deploy/bin> ./dspace dsrun
org.dspace.app.util.IndexVersion
/opt/dspace/deploy/solr/statistics/data/index
4.10.2


2015-12-17 13:53 GMT-02:00 Monika C. Mevenkamp :

> You need to upgrade your statistics and solr index ?
>
> I am getting ready to do the same uproar - and I pieced together some
> notes based on
> wiki-doc: https://wiki.duraspace.org/display/DSDOC5x/Upgrading+DSpace
> 
>
>
> you can test whether your solr version is outdated (probably you are ok
> there since you say  everything but stats works)
>
> # test that index is outdated   anything smaller than 3.5
> /dspace/bin/dspace dsrun org.dspace.app.util.IndexVersion
> /dspace/solr/statistics/data/index
>
> but if your versions are off do the following - get yourself an uptodate
> lucene-core-3.5.0.jar
>
> # upgrade statistics index
> # in home directory we have the jar parked
> java -cp lucene-core-3.5.0.jar org.apache.lucene.index.IndexUpgrader
>  /dspace/solr/statistics/data/index/
>
> # expect to see 3.5
> /dspace/bin/dspace dsrun org.dspace.app.util.IndexVersion
> /dspace/solr/statistics/data/index
>
> #update index
> ant update_solr_indexes
> /dspace/bin/dspace dsrun org.dspace.app.util.IndexVersion
> /dspace/solr/statistics/data/index
>
>
>
> —
> Monika Mevenkamp
> Digital Repository Infrastructure Developer
> Princeton University
> Phone: 609-258-4161
> Skype: mo-meven
>
> On Dec 17, 2015, at 10:39 AM, Tiago Delboni  wrote:
>
> Hi!
>
> I'm working on upgrading DSpace from 1.8.2 to 5.4. I guess was able to put
> everything working but the statistics. Everytime I click the Statistics
> menu, in JSPUI, DSpace come out with a Internal Server Error.
> Bellow is the relevant part gattered from dspace.log. Any ideas how to
> fix it?
>
> Also, I would like to know if I can keep the historical statistics I have
> on 1.8.x. What I did, trying to achieve this, was to copy the contents from
> [dspace1.8]/log and [dspace1.8]/solr/statistics/data to [dspace5.4] and
> ran [dspace5.4]/bin/dspace solr-reindex-statistics.
>
> 2015-12-17 13:15:12,864 WARN
> org.dspace.app.webui.servlet.InternalErrorServlet @
> :session_id=0CFF63BC0604F2B56DD0EE375E575ED9:internal_error:-- URL Was:
> https://dspace-novo.almg.gov.br/jspui/statistics
> -- Method: GET
> -- Parameters were:
>
> java.lang.NullPointerException
> at
> org.dspace.app.webui.servlet.StatisticsServlet.showStatistics(StatisticsServlet.java:121)
> at
> org.dspace.app.webui.servlet.StatisticsServlet.doDSPost(StatisticsServlet.java:68)
> at
> org.dspace.app.webui.servlet.StatisticsServlet.doDSGet(StatisticsServlet.java:49)
> at
> org.dspace.app.webui.servlet.DSpaceServlet.processRequest(DSpaceServlet.java:119)
> at
> org.dspace.app.webui.servlet.DSpaceServlet.doGet(DSpaceServlet.java:67)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
> at
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
> at
> org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
> at
> org.apache.coyote.ajp.AbstractAjpProcessor.process(AbstractAjpProcessor.java:844)
> at
> org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
> at
> org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1526)
>

[dspace-tech] Can't get statistics to work after upgrading from 1.8.x to 5.x

2015-12-17 Thread Tiago Delboni 
Hi!

I'm working on upgrading DSpace from 1.8.2 to 5.4. I guess was able to put 
everything working but the statistics. Everytime I click the Statistics 
menu, in JSPUI, DSpace come out with a Internal Server Error.
Bellow is the relevant part gattered from dspace.log. Any ideas how to fix 
it? 

Also, I would like to know if I can keep the historical statistics I have 
on 1.8.x. What I did, trying to achieve this, was to copy the contents from 
[dspace1.8]/log and [dspace1.8]/solr/statistics/data to [dspace5.4] and ran 
[dspace5.4]/bin/dspace 
solr-reindex-statistics.

2015-12-17 13:15:12,864 WARN  
org.dspace.app.webui.servlet.InternalErrorServlet @ 
:session_id=0CFF63BC0604F2B56DD0EE375E575ED9:internal_error:-- URL Was: 
https://dspace-novo.almg.gov.br/jspui/statistics
-- Method: GET
-- Parameters were:

java.lang.NullPointerException
at 
org.dspace.app.webui.servlet.StatisticsServlet.showStatistics(StatisticsServlet.java:121)
at 
org.dspace.app.webui.servlet.StatisticsServlet.doDSPost(StatisticsServlet.java:68)
at 
org.dspace.app.webui.servlet.StatisticsServlet.doDSGet(StatisticsServlet.java:49)
at 
org.dspace.app.webui.servlet.DSpaceServlet.processRequest(DSpaceServlet.java:119)
at 
org.dspace.app.webui.servlet.DSpaceServlet.doGet(DSpaceServlet.java:67)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at 
org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78)
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at 
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at 
org.apache.coyote.ajp.AbstractAjpProcessor.process(AbstractAjpProcessor.java:844)
at 
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
at 
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1526)
at 
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1482)
at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at 
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
2015-12-17 13:15:12,865 WARN  org.dspace.app.webui.util.UIUtil @ Unable to 
send email alert
java.lang.NullPointerException
at 
org.dspace.storage.rdbms.DatabaseManager.queryTable(DatabaseManager.java:230)
at 
org.dspace.content.DSpaceObject$MetadataCache.retrieveMetadata(DSpaceObject.java:1330)
at 
org.dspace.content.DSpaceObject$MetadataCache.get(DSpaceObject.java:1265)
at 
org.dspace.content.DSpaceObject.getMetadata(DSpaceObject.java:676)
at 
org.dspace.content.DSpaceObject.getMetadata(DSpaceObject.java:585)
at 
org.dspace.content.DSpaceObject.getMetadataFirstValue(DSpaceObject.java:653)
at org.dspace.eperson.EPerson.getFirstName(EPerson.java:772)
at org.dspace.eperson.EPerson.getFullName(EPerson.java:748)
at org.dspace.app.webui.util.UIUtil.sendAlert(UIUtil.java:419)
at 
org.dspace.app.webui.servlet.InternalErrorServlet.doGet(InternalErrorServlet.java:54)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at 
org.apache.catalina