In an AWS EC2 Instance Linux installed with GeoServer I am trying to load time-series raster imagery using the Image Mosaic plugin as described here: https://docs.geoserver.org/latest/en/user/tutorials/imagemosaic_timeseries/imagemosaic_timeseries.html

I have modified the time to -GMT and created all .properties files.

However, when I try to load the directory to publish I am getting the following error

Geoserver error loading raster data in AWS ec2 linux instance

I was checking the read write access of GeoServer to the data folder it was okay.

Contents of -indexer.properties file:

Caching=false TimeAttribute=ingestion ElevationAttribute=elevation Schema=*the_geom:Polygon,location:String,ingestion:java.util.Date,elevation:Double PropertyCollectors=TimestampFileNameExtractorSPItimeregex,DoubleFileNameExtractorSPIelevationregex



I do not know where it went wrong?

Yes in my question the indexer.properties contents are not complete that was a paste error.

I have used the indexer.properties without the elevation collector as suggested. Still, it is not working.

I am attaching the log

enter image description here

Also the filenames I am using in valid form.

  • Welcome to Geographic Information Systems! Please look in the log files and add any relevant error messages to your question using the edit button
    – Ian Turton
    Commented Oct 19, 2020 at 9:02
  • Could you update the question with the contents of your ,properties files? The error message you are getting could appear when the indexer.properties is present, but has errors.Try to remove indexer.properties and create the mosic. If that works, you have a problem with indexer.properties.
    – Stefan
    Commented Nov 12, 2020 at 10:30

1 Answer 1


After your edit its still not clear if you have succeeded in creating the mosiac without the indexer file. But unless you have lost something from your indexer file when pasting to stackexchange you indexer.propertis is malformed. Look at the example again. You are missing [] around the regex filename and the variable name inside () for each of the collectors.

From the example:


Also if you are not using the elevation, remove the elevation collector, otherwise you need to have a elevationregex.properties file as well.

Try this file:


And also make sure that all your filnames contains 8 digits that corresponds to a valid date on the form yyyyMMdd.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.