Hi John, No, WAL consists from several constant sized, append only files (segments). Segments are rotated and deleted after (WAL_History_size) checkpoints. WAL is common for all caches.
If you are interested in low-level details of implementation, you can see it here in draft wiki page for Ignite developers https://cwiki.apache.org/confluence/display/IGNITE/Ignite+Persistent+Store+-+under+the+hood#IgnitePersistentStore-underthehood-WALstructure Sincerely, Dmitriy Pavlov ср, 1 нояб. 2017 г. в 20:36, John Wilson <[email protected]>: > Hi, > > Is the WAL a memory mapped file? Is it defined per cache? > > Thanks. >
