A new stable release of the THREDDS Data Server 3.6 is now ready at
ftp://ftp.unidata.ucar.edu/pub/thredds/3.6/thredds.war
The main reason for this release is to release a stable version of the catalog
schema (version 1.0.1), which is now frozen.
There were a number of minor changes to the catalog schema (eg "dirLocation" is now
"location" in several places), as well as new functionality added to the DatasetScan
element. We encourage you to make your catalogs validate against this schema, which will eliminate
various possible errors in configuring the TDS. The TDS will still accept the older catalogs
without validation.
You can run validation externally through your favorite XML editor (I am using
Oxygen). TDS will also show you the validation errors. If you use Tomcat 5.0.X,
you are encouraged to upgrade Tomcat's XML parser to Xerces 2.7.1, which has
improved validation messages. Unfortunately you have to do this yourself, see:
http://motherlode.ucar.edu:9080/thredds/docs/GettingStarted.html#validation
Various bugs have also been fixed. A particular one to note is a bug that
usually prevents the Tomcat server process from exiting correctly. If you are
running TDS 3.4 or above, you should do the following
1) if you use deployment, deploy the new thredds.jar, version 3.6 first.
2) shutdown Tomcat (${tomcat_home}/bin/shutdown.sh)
3) look in your process log for zombie tomcat server process (eg ps -elf |
grep java)
4) kill any zombie tomcat server processes
5) if you copy thredds.jar into webapps manually, now's the time to do that
6) startup Tomcat (remember you should become the tomcat user to do this)
(${tomcat_home}/bin/startup.sh)
The new version of thredds does not have this problem, so you should no longer
have problems stopping and restarting tomcat.
In summary:
1. Please upgrade your TDS to version 3.6. Sorry about the zombies ;^{
2. Please validate your TDS catalogs, it makes our job supporting TDS easier!
3. Most excellent new DatasetScan functionality:
http://motherlode.ucar.edu:9080/thredds/docs/datasetScan/index.html
We will be moving the motherlode:8080 server to version 3.6 in the next day or
two.
Thanks!
