Hi Hans,
That error suggests that elastic search isn't running properly. The only
thing you can do is to restart tomcat, and watch the logs to ensure that
elastic search starts properly. Perhaps earlier in your logs will be the
first error for elastic search that explains what happens. Either it didn't
start properly, or java ran out of memory, and now it's not working.
One of my recommendations for the best experience with elastic search, is
if you have a dedicated elastic search server. Then you would set
dspace/config/modules/elastic-search-statistic.cfg to specify the IP
address of that elastic search server.
On Nov 21, 2014 5:54 AM, "Hans Olaf Gundersen" <
[email protected]> wrote:
>
> Hi!
>
> We are using DSpace version 4.1 and yesterday we got a new problem. When
> we try to open a community in DSpace (from Browse menu select "Communities
> and Collections" and then selecting a community) it hangs for a minute or
> more before the community is shown.
>
> We ran the command "dspace/bin/dspace index-discovery -b" and restartet
> tomcat.
> This made it much better but we still have these error messages in the
> dspace.log file.
>
>
> Error log file attached as dspace.log.
>
>
>
> Elastic Search has been enabled according to your documentation:
> https://wiki.duraspace.org/display/DSDOC4x/Elastic+
> Search+Usage+Statistics#ElasticSearchUsageStatistics-
> EnablingElasticSearchStatistics
>
> Elastic search has been working fine till now. (We made a minor fix to
> Eleastic Search ourselves because Elastic Search tried to display
> information on deleted items and ended up in nullpointerexceptions.)
>
>
>
>
>
> Do you have any idea what is wrong?
>
>
>
>
>
>
>
> Best regards,
> Hans Olaf Gundersen
>
>
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