From: Robert Varga <robert.varga@pantheon.tech>
Date: Tue, 23 Feb 2021 16:38:39 +0000 (+0100)
Subject: Use memory-mapped segmented journal by default
X-Git-Tag: v4.0.0~41
X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=commitdiff_plain;h=f944a17983cda0731b8ff5423385844ef951a737;hp=f944a17983cda0731b8ff5423385844ef951a737

Use memory-mapped segmented journal by default

Segmented file implementation requires a buffer double the size
of the file's maximum size. This ends up being allocated on-healp, which
is wasteful from effeciency perspective. Switch default configuration
so that it uses memory-mapped files instead.

JIRA: CONTROLLER-1954
Change-Id: Icad9ef74c50467323e31567828a949c0cae52a9e
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>
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