THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Implementation | Warranties | |
---|---|---|
DEFAULTFSYNC | fsync() on each commit | Any crashes (OS and process crash) |
LOG_ONY | write() on commit Synchronisation is responsibility of OS | Kill process, but no OS fail |
BACKGROUND | do nothing on commit (records are accumulated in memory) write() on timeout | kill -9 may cause loss of several latest updates |
NONE | WAL is disabled | data is persisted only in case of graceful cluster shutdown (Ignite.cluster().active(false)) |
But there is several nodes containing same data and there is possible to restore data from other nodes.
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