Thanks for the clarification Mike 😊 -----Original Message----- From: Mikhail [mailto:michael.cherka...@gmail.com] Sent: Thursday, February 15, 2018 5:15 AM To: user@ignite.apache.org Subject: Re: Write ahead log and early eviction of new elements
Hi Raymond, >I understand when I add an element to a cache that element is >serialized, placed into the local memory for the cache on that server >and then placed into the WAL pending checkpointing (merging into the >persistence store). First, the update will be written into WAL and only then into local memory. >What happens if the newly added element is evicted and then re-read >from the cache by the client before the next checkpoint occurs? What do you mean by "evicted"? Ignite evicts memory pages to a disk if there's not enough space to save new record or it needs to load a page from disk and for this purpose, it will evict some page from memory. But it will evict the only page that is already saved to the disk. Thanks, Mike. -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
