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[las_users] no images from las v8
Dear Roland,
I am trying to build a new las using version 8. I went through the
installation procedure (tomcat, TDS, F-TDS, ferret ...).
F-TDS is working, I can extract data via the thredds/Data_From_Las web
interface from a local browser (same machine)
This works fine for all example data sets. I can access the example data
via ferret.
LAS is also installed, except "revision" I get
BUILD SUCCESSFUL
The test is missing. Strange is, that the scripts stopserver.sh and
startserver.sh have a wrong JAVA_HOME. After correcting this, I can
start and
stop tomcat.
With a local browser (firefox) I can access las.
las/ProductServer.do shows working backends - except the obis, tabledap
and iobis part. Here I get an AXIS-error.
The interface shows up, I can select example data sets, regions, time
series ...
With "coads_climatology" I get the correct annotation, but the image
area remains blank. I can see the data and can download
netcdf data subsets. In the output directory I find also a correct
gif-image. However, this is not shown by las.
Chosing another example data set xx_debug.txt and xx_rss.rss show up in
output, but nothing else. The web interface
shows the "rotating circle" forever.
The first line in debug.txt is
**ERROR The x region is too small. It reduces to a single point.
Trying to cancel the plot does not work and the web browser needs to be
refreshed.
I have searched the log files for error messages, but cannot find a hint.
Several errors seem to be mixed, the most serious one for the moment is
the missing image output.
Some more details on the installation:
I am using OPENSuse 12.3. This new distribution includes a recent
version of java, ant, tomcat7. So far installation is simple.
A shortcoming is, that the tomcat installation is scatterd through the
system. Files are collected by symbolic links in
/usr/share/tomcat. This conflicts with some
webapps/thredds/../../content notation in the scripts for the thredds
deployment.
Generating the content subdirectory besides /srv/tomcat/webapps
(/srv/tomcat/content) and linking by hand to
/usr/share/tomcat resolves this issue, hopefully.
Installing tomcat with yast2 implies, the server belongs to a user
tomcat. This is fine for the moment, but this is not a login user.
So I install LAS as root. The tomcat server is started by root, but
belongs to user tomcat. However, the webapps/las directory
and all las-dependent files belong to root. I changed this after las
installation to tomcat.tomcat, however, the newly generated files are owned
by root again. Switching to user "tomcat" and rebooting the server,
changes this - now I get output files owned by tomcat.
For me it is not clear, who should or must own the thredds and the las
files.
However all these actions do not resolve the issues:
- no data output from las for all example data sets except
coads_climatology. F-TDS works through the web interface and through
ferret (use "http ....")
- no image output for data set coads_climatolgy, but the image file is
generated in the output directory.
I do not have an idea how to locate the error source. Any help is welcome.
Best,
Martin
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