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From adeeec1fbe7241d18903ae3830a1fabb1061be21 Mon Sep 17 00:00:00 2001
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From: karthik-us <ksubrahm@redhat.com>
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Date: Mon, 17 Dec 2018 14:28:07 +0530
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Subject: [PATCH 489/493] cluster/afr: Do not update read_subvol in inode_ctx
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 after rename/link fop
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Since rename/link fops on a file will not change any data in it, it should
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not update the read_subvol values in the inode_ctx, which interprets the
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data & metadata readable subvols for that file. The old read_subvol values
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should be retained even after the rename/link operations.
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Backport of: https://review.gluster.org/#/c/glusterfs/+/21841
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Change-Id: I22787938b3f8295a48162ab4f498e4010d66a1ab
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BUG: 1645480
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Signed-off-by: karthik-us <ksubrahm@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/158803
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Tested-by: RHGS Build Bot <nigelb@redhat.com>
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Tested-by: Ravishankar Narayanankutty <ravishankar@redhat.com>
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Reviewed-by: Ravishankar Narayanankutty <ravishankar@redhat.com>
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Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
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---
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 ...7783-do-not-update-read-subvol-on-rename-link.t | 40 ++++++++++++++++++++++
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 xlators/cluster/afr/src/afr-dir-write.c            |  4 ++-
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 2 files changed, 43 insertions(+), 1 deletion(-)
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 create mode 100644 tests/bugs/replicate/bug-1657783-do-not-update-read-subvol-on-rename-link.t
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diff --git a/tests/bugs/replicate/bug-1657783-do-not-update-read-subvol-on-rename-link.t b/tests/bugs/replicate/bug-1657783-do-not-update-read-subvol-on-rename-link.t
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new file mode 100644
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index 0000000..b180f0e
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--- /dev/null
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+++ b/tests/bugs/replicate/bug-1657783-do-not-update-read-subvol-on-rename-link.t
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@@ -0,0 +1,40 @@
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+#!/bin/bash
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+. $(dirname $0)/../../include.rc
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+. $(dirname $0)/../../volume.rc
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+cleanup;
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+
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+TEST glusterd
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+TEST pidof glusterd
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+TEST $CLI volume create $V0 replica 3 $H0:$B0/${V0}{0..2}
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+TEST $CLI volume set $V0 self-heal-daemon off
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+TEST $CLI volume set $V0 cluster.data-self-heal off
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+TEST $CLI volume set $V0 cluster.metadata-self-heal off
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+TEST $CLI volume set $V0 cluster.entry-self-heal off
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+TEST $CLI volume set $V0 performance.write-behind off
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+
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+TEST $CLI volume start $V0
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+TEST $GFS --volfile-id=$V0 --volfile-server=$H0 $M0;
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+TEST mkdir $M0/dir
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+TEST "echo abc > $M0/file1"
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+TEST "echo uvw > $M0/file2"
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+
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+TEST kill_brick $V0 $H0 $B0/${V0}0
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+TEST "echo def > $M0/file1"
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+TEST "echo xyz > $M0/file2"
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+
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+TEST $CLI volume start $V0 force
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+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "1" brick_up_status $V0 $H0 $B0/${V0}0
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+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "1" afr_child_up_status $V0 0
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+
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+TEST kill_brick $V0 $H0 $B0/${V0}1
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+
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+# Rename file1 and read it. Read should be served from the 3rd brick
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+TEST mv $M0/file1 $M0/file3
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+EXPECT "def" cat $M0/file3
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+
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+# Create a link to file2 and read it. Read should be served from the 3rd brick
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+TEST ln $M0/file2 $M0/dir/file4
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+EXPECT "xyz" cat $M0/dir/file4
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+EXPECT "xyz" cat $M0/file2
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+
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+cleanup
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diff --git a/xlators/cluster/afr/src/afr-dir-write.c b/xlators/cluster/afr/src/afr-dir-write.c
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index 75889de..c508034 100644
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--- a/xlators/cluster/afr/src/afr-dir-write.c
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+++ b/xlators/cluster/afr/src/afr-dir-write.c
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@@ -99,7 +99,9 @@ __afr_dir_write_finalize (call_frame_t *frame, xlator_t *this)
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         }
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 	if (local->inode) {
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-		afr_replies_interpret (frame, this, local->inode, NULL);
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+                if (local->op != GF_FOP_RENAME && local->op != GF_FOP_LINK)
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+		        afr_replies_interpret (frame, this, local->inode, NULL);
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+
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 		inode_read_subvol = afr_data_subvol_get (local->inode, this,
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                                                        NULL, NULL, NULL, &args);
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 	}
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-- 
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1.8.3.1
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