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Denis Magda updated IGNITE-7408: -------------------------------- Environment: (was: WAL documentation should be updated accordingly to IGNITE-6339 issue. The following changes can affect WAL configuration and behavior: # {\{DataStorageConfiguration.setWalBufferSize}} added instead of \{{PersistentStoreConfiguration.setTlbSize}}. By default WAL buffer size equals WAL segment size if memory mapped file is enabled, and (WAL segment size) / 4 if memory mapped file is disabled. # Memory mapped file is enabled by default and provides better performance. Memory mapped file usage can be turned off. \{{IGNITE_WAL_MMAP}} property with \{{false}} value should be added to the JVM arguments: \{{-DIGNITE_WAL_MMAP=false}}. # If memory mapped file is enabled then \{{BACKGROUND}} and \{{LOG_ONLY}} WAL modes behave identically and don't have any differences in performance or data integrity guarantees.) > Document WAL changes > -------------------- > > Key: IGNITE-7408 > URL: https://issues.apache.org/jira/browse/IGNITE-7408 > Project: Ignite > Issue Type: Task > Components: documentation > Reporter: Andrey Gura > Priority: Major > Fix For: 2.4 > > > WAL documentation should be updated accordingly to IGNITE-6339 issue. > The following changes can affect WAL configuration and behavior: > # {{DataStorageConfiguration.setWalBufferSize}} added instead of > {{PersistentStoreConfiguration.setTlbSize}}. By default WAL buffer size > equals WAL segment size if memory mapped file is enabled, and (WAL segment > size) / 4 if memory mapped file is disabled. > # Memory mapped file is enabled by default and provides better performance. > Memory mapped file usage can be turned off. {{IGNITE_WAL_MMAP}} property with > {{false}} value should be added to the JVM arguments: > {{-DIGNITE_WAL_MMAP=false}}. > # If memory mapped file is enabled then {{BACKGROUND}} and {{LOG_ONLY}} WAL > modes behave identically and don't have any differences in performance or > data integrity guarantees. -- This message was sent by Atlassian JIRA (v7.6.3#76005)