How to leverage Flash Memory to cache Neo4j data

[leminhvn]

Dear Neo4j team,

I had a big database with 100 million nodes and 30 billion edges. In summary the database cost 300GB disk. Therefore I can not fit it into memory. However, my server has large flash disk with very high iops. How can I leverage the driver as caching memory?
I can only use the flash disk to cache data because it was not persistent disk. When the server is reboot the data in flash disk will be wiped out.

[andreperez]

Your idea is really interesting. I can't answer you but I searched for topics about allocating JVM memory on disk and found it's possible, declaring your flash drive as a swap partition, but it may degrade your drive faster and maybe GC process will be very slow.

stackoverflow.com

Using Hard Disk Space as Java heap?

java, heap

asked by S R Maiti on 04:03PM - 11 Apr 16 UTC

If it works tell us, it would be mind blowing for me.

[leminhvn]

Many thanks, let me try and update you later.