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From 3bcffadcd77eebe6b4f7e5015ad41ec7c1d1ec3e Mon Sep 17 00:00:00 2001
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From: Mohit Agrawal <moagrawal@redhat.com>
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Date: Thu, 11 Apr 2019 20:38:53 +0530
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Subject: [PATCH 096/124] core: Brick is not able to detach successfully in
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brick_mux environment
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Problem: In brick_mux environment, while volumes are stopped in a
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loop bricks are not detached successfully. Brick's are not
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detached because xprtrefcnt has not become 0 for detached brick.
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At the time of initiating brick detach process server_notify
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saves xprtrefcnt on detach brick and once counter has become
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0 then server_rpc_notify spawn a server_graph_janitor_threads
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for cleanup brick resources.xprtrefcnt has not become 0 because
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socket framework is not working due to assigning 0 as a fd for socket.
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In commit dc25d2c1eeace91669052e3cecc083896e7329b2
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there was a change in changelog fini to close htime_fd if htime_fd is not
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negative, by default htime_fd is 0 so it close 0 also.
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Solution: Initialize htime_fd to -1 after just allocate changelog_priv
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by GF_CALLOC
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> Fixes: bz#1699025
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> Change-Id: I5f7ca62a0eb1c0510c3e9b880d6ab8af8d736a25
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> Signed-off-by: Mohit Agrawal <moagrawal@redhat.com>
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> (Cherry picked from commit b777d83001d8006420b6c7d2d88fe68950aa7e00)
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> (Reviewed on upstream link https://review.gluster.org/#/c/glusterfs/+/22549/
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Fixes: bz#1698919
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Change-Id: Ib5b74aa0818235625f8aac7c23d4daa599da3fd1
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Signed-off-by: Mohit Agrawal <moagrawal@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/167826
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Tested-by: Mohit Agrawal <moagrawa@redhat.com>
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Tested-by: RHGS Build Bot <nigelb@redhat.com>
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Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
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---
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.../bug-1699025-brick-mux-detach-brick-fd-issue.t | 33 ++++++++++++++++++++++
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xlators/features/changelog/src/changelog.c | 1 +
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2 files changed, 34 insertions(+)
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create mode 100644 tests/bugs/core/bug-1699025-brick-mux-detach-brick-fd-issue.t
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diff --git a/tests/bugs/core/bug-1699025-brick-mux-detach-brick-fd-issue.t b/tests/bugs/core/bug-1699025-brick-mux-detach-brick-fd-issue.t
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new file mode 100644
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index 0000000..1acbaa8
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--- /dev/null
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+++ b/tests/bugs/core/bug-1699025-brick-mux-detach-brick-fd-issue.t
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@@ -0,0 +1,33 @@
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+#!/bin/bash
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+
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+. $(dirname $0)/../../include.rc
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+. $(dirname $0)/../../volume.rc
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+. $(dirname $0)/../../cluster.rc
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+
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+function count_brick_processes {
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+ pgrep glusterfsd | wc -l
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+}
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+
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+cleanup
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+
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+#bug-1444596 - validating brick mux
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+
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+TEST glusterd
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+TEST $CLI volume create $V0 $H0:$B0/brick{0,1}
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+TEST $CLI volume create $V1 $H0:$B0/brick{2,3}
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+
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+TEST $CLI volume set all cluster.brick-multiplex on
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+
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+TEST $CLI volume start $V0
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+TEST $CLI volume start $V1
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+EXPECT_WITHIN $PROCESS_UP_TIMEOUT 4 online_brick_count
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+EXPECT 1 count_brick_processes
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+
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+TEST $CLI volume stop $V1
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+# At the time initialize brick daemon it always keeps open
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+# standard fd's (0, 1 , 2) so after stop 1 volume fd's should
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+# be open
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+nofds=$(ls -lrth /proc/`pgrep glusterfsd`/fd | grep dev/null | wc -l)
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+TEST [ $((nofds)) -eq 3 ]
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+
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+cleanup
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diff --git a/xlators/features/changelog/src/changelog.c b/xlators/features/changelog/src/changelog.c
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index 1f22a97..d9025f3 100644
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--- a/xlators/features/changelog/src/changelog.c
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+++ b/xlators/features/changelog/src/changelog.c
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@@ -2740,6 +2740,7 @@ init(xlator_t *this)
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GF_ATOMIC_INIT(priv->clntcnt, 0);
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GF_ATOMIC_INIT(priv->xprtcnt, 0);
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INIT_LIST_HEAD(&priv->xprt_list);
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+ priv->htime_fd = -1;
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ret = changelog_init_options(this, priv);
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if (ret)
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--
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1.8.3.1
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