Found "Unknown store type [memory]" with 2.0.0-beta


This code works fine with 1.7.0 but not 2.0.0-beta. Is it expected ?


Error is:

java.lang.IllegalArgumentException: Unknown store type [memory]
at org.elasticsearch.common.inject.AbstractModule.configure(AbstractModu
at org.elasticsearch.common.inject.spi.Elements$RecordingBinder.install(

You can reproduce with (uncomment the settings.put line).

Thanks for your help,


Yes. Expected. See

The provided link is not working any more. Is this information located in any other place?

I researched about this but I did not find anywhere an explanation why this storage type has been removed.

I would like to know if there is any option to have transient indeces, so the data is never persisted in the disk, as it was with "memory" type.

I tried with "mmapfs" but is does not seems to have exactly the same behaviour.

Thank you for your time.


Here is the corrected link at least: