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From "Andrey Gura (Jira)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-12131) MMAP mode should be disabled by default for WAL manager
Date Fri, 30 Aug 2019 13:58:00 GMT
Andrey Gura created IGNITE-12131:
------------------------------------

             Summary: MMAP mode should be disabled by default for WAL manager
                 Key: IGNITE-12131
                 URL: https://issues.apache.org/jira/browse/IGNITE-12131
             Project: Ignite
          Issue Type: Improvement
            Reporter: Andrey Gura
             Fix For: 2.8


MMAP mode has a bunch of problems (see for example http://www.mapdb.org/blog/mmap_files_alloc_and_jvm_crash/
)

Users are increasingly stumbling over these issues especially in virtualized environments.

MMAP should be disabled by default because it require additional care from user stand point.



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