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From bd091bbd91555dad98d23d09977db8cb2bdddf39 Mon Sep 17 00:00:00 2001
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From: Pranith Kumar K <pkarampu@redhat.com>
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Date: Tue, 29 Aug 2017 11:29:33 +0530
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Subject: [PATCH 606/613] gluster-block: strict-o-direct should be on
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Backport of https://review.gluster.org/18120
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tcmu-runner is not going to open block with O_SYNC anymore
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so writes have a chance of getting cached in write-behind
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when that happens, there is a chance that on failover some
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data could be stuck in cache and be lost.
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>BUG: 1485962
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>Change-Id: If9835d914821dfc4ff432dc96775677a55d2918f
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>Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
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BUG: 1486115
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Change-Id: If9835d914821dfc4ff432dc96775677a55d2918f
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Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/116643
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Tested-by: Prasanna Kalever <prasanna.kalever@redhat.com>
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Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
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---
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extras/group-gluster-block | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/extras/group-gluster-block b/extras/group-gluster-block
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index 82bd6ff..e94f834 100644
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--- a/extras/group-gluster-block
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+++ b/extras/group-gluster-block
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@@ -4,6 +4,7 @@ performance.io-cache=off
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performance.stat-prefetch=off
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performance.open-behind=off
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performance.readdir-ahead=off
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+performance.strict-o-direct=on
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network.remote-dio=disable
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cluster.eager-lock=disable
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cluster.quorum-type=auto
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--
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2.9.5
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