Hi team, I was going through the documentation of durable memory at https://apacheignite.readme.io/docs/durable-memory
As per the documentation, durable memory comes into picture when PersistentStore configuration is enabled. Now durable memory uses both RAM(hot data) and disk (superset). When the RAM part reaches a threshold (80% by default as per the documentation), the durable data retains only hot data in RAM and rest on the disk. QUESTION 1 So does that mean that there is a default eviction policy which comes into existence ? Or does the user explicitly has to mention the same in configuration ? What happens if he does not mention the eviction policy in configuration ? Suppose there are 2 nodes N1 (different physical box) and N2 (different physical box) and the data is distributed in PARTITIONED mode and persistent store is enabled. Here is the example of entries N1-> "1","X" N2-> "2","Y" QUESTION 2 Suppose N1 crashes and goes down and does not come up at all for say 5 hours. Is "1" retrievable at all during that time if N1 went down after an entry to its WAL file or we loose N1 ? If say the entry was not able to be made in WAL file and should we have configured a back up as N3 (different physical box), would it have saved "1" ? -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Persistent-store-and-eviction-policy-tp16092.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.
