Re: Question on how Geode handles data on Disk

2020-09-08 Thread Anilkumar Gingade
Amit, You can find high level details at: https://geode.apache.org/docs/guide/112/developing/storing_data_on_disk/chapter_overview.html Geode keeps the Key always in memory. Geode creates different Region-Entries (Key-Value pair) based on the region configuration and how/where data is stored.

Re: Question on how Geode handles data on Disk

2020-09-07 Thread Amit Pandey
I agree its kind of academic but any answers will be appreciated, I just wanted to understand the performance characteristics when using disk persistence On Sun, Sep 6, 2020 at 11:54 PM Amit Pandey wrote: > What I meant here "Also if I request data for ID 1 will it bring it only > from disk or "

Re: Question on how Geode handles data on Disk

2020-09-07 Thread Udo Kohlmeyer
Hi there Amit, (Attempt 2), So, create a Region, you configure if the Region is to persist the data to disk or not. There is no selective algorithm that would select which data is written to disk and which is not. If it is configured to be persistent or eviction overflowed, it will be written

Re: Question on how Geode handles data on Disk

2020-09-07 Thread Udo Kohlmeyer
Hi there Amit, On Sep 7, 2020, 4:25 AM +1000, Amit Pandey , wrote: What I meant here "Also if I request data for ID 1 will it bring it only from disk or " was that if I request a tuple which is not in memory and is in disk, 1) How does Geode know its in DISK 2) Does it bring only that tuple (value

Re: Question on how Geode handles data on Disk

2020-09-06 Thread Amit Pandey
What I meant here "Also if I request data for ID 1 will it bring it only from disk or " was that if I request a tuple which is not in memory and is in disk, 1) How does Geode know its in DISK 2) Does it bring only that tuple (value) to Memory or brings the whole page Regards On Sun, Sep 6, 2