On Sun, Sep 3, 2017 at 12:35 AM, dkarachentsev <[email protected]> wrote:
> Hi, > > Just to clarify my words a bit. When persistence is enabled, all memory > data > are stored on disk with all durability guarantees. But it is also allows > you > to store in cache more data than you can fit in memory: Ignite just evicts > stale data pages from RAM, and when they will be needed - loaded from disk. > > So you always have everything on hard drive and hot data in memory. > Let me clarify a bit more. When Ignite persistence is enabled, all the data gets persisted to disk. If the data size exceeds the pre-configured memory size, then Ignite will start purging the cold pages and will only keep the hot data in memory.
