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From 0f3a3c9ed32fec80f1b88cc649a98bcdcc234b6a Mon Sep 17 00:00:00 2001
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From: Amar Tumballi <amarts@redhat.com>
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Date: Sun, 22 Oct 2017 12:41:38 +0530
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Subject: [PATCH 39/74] protocol/client: handle the subdir handshake properly
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for add-brick
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There should be different way we handle handshake in case of subdir
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mount for the first time, and in case of subsequent graph changes.
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> Upstream
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> URL: https://review.gluster.org/#/c/18550/
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>
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Change-Id: I2a7ba836433bb0a0f4a861809e2bb0d7fbc4da54
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Signed-off-by: Amar Tumballi <amarts@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/121725
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Tested-by: RHGS Build Bot <nigelb@redhat.com>
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Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
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---
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tests/features/subdir-mount.t | 31 +++++++++++++++++++++-----
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xlators/protocol/client/src/client-handshake.c | 10 ++++++++-
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2 files changed, 35 insertions(+), 6 deletions(-)
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diff --git a/tests/features/subdir-mount.t b/tests/features/subdir-mount.t
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index ab7ef35..1742f86 100644
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--- a/tests/features/subdir-mount.t
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+++ b/tests/features/subdir-mount.t
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@@ -82,17 +82,38 @@ TEST $CLI volume stop $V0
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TEST $CLI volume start $V0
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-# /subdir2 has not allowed IP
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-TEST $GFS --subdir-mount /subdir2 -s $H0 --volfile-id $V0 $M1
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-TEST stat $M1
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-
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TEST $GFS --subdir-mount /subdir1/subdir1.1/subdir1.2 -s $H0 --volfile-id $V0 $M2
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TEST stat $M2
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+# mount shouldn't fail even after add-brick
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+TEST $CLI volume add-brick $V0 replica 2 $H0:$B0/${V0}{5,6};
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+
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+# Give time for client process to get notified and use the new
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+# volfile after add-brick
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+sleep 1
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+
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+# Existing mount should still be active
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+mount_inode=$(stat --format "%i" "$M2")
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+TEST test "$mount_inode" == "1"
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+
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+TEST umount $M2
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+
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+# because the subdir is not yet 'healed', below should fail.
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+TEST $GFS --subdir-mount /subdir2 -s $H0 --volfile-id $V0 $M2
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+mount_inode=$(stat --format "%i" "$M2")
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+TEST test "$mount_inode" != "1"
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+
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+# Allow the heal to complete
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+TEST stat $M0/subdir1/subdir1.1/subdir1.2/subdir1.2_file;
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+TEST stat $M0/subdir2/
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+
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+# Now the mount should succeed
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+TEST $GFS --subdir-mount /subdir2 -s $H0 --volfile-id $V0 $M1
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+TEST stat $M1
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+
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# umount $M1 / $M2
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TEST umount $M0
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TEST umount $M1
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-TEST umount $M2
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TEST $CLI volume stop $V0;
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diff --git a/xlators/protocol/client/src/client-handshake.c b/xlators/protocol/client/src/client-handshake.c
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index b6dc079..aee6b3a 100644
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--- a/xlators/protocol/client/src/client-handshake.c
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+++ b/xlators/protocol/client/src/client-handshake.c
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@@ -1079,10 +1079,14 @@ client_setvolume_cbk (struct rpc_req *req, struct iovec *iov, int count, void *m
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int32_t op_errno = 0;
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gf_boolean_t auth_fail = _gf_false;
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uint32_t lk_ver = 0;
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+ glusterfs_ctx_t *ctx = NULL;
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frame = myframe;
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this = frame->this;
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conf = this->private;
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+ GF_VALIDATE_OR_GOTO (this->name, conf, out);
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+ ctx = this->ctx;
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+ GF_VALIDATE_OR_GOTO (this->name, ctx, out);
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if (-1 == req->rpc_status) {
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gf_msg (frame->this->name, GF_LOG_WARNING, ENOTCONN,
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@@ -1145,9 +1149,13 @@ client_setvolume_cbk (struct rpc_req *req, struct iovec *iov, int count, void *m
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auth_fail = _gf_true;
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op_ret = 0;
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}
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- if ((op_errno == ENOENT) && this->ctx->cmd_args.subdir_mount) {
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+ if ((op_errno == ENOENT) && this->ctx->cmd_args.subdir_mount &&
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+ (ctx->graph_id <= 1)) {
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/* A case of subdir not being present at the moment,
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ride on auth_fail framework to notify the error */
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+ /* Make sure this case is handled only in the new
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+ graph, so mount may fail in this case. In case
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+ of 'add-brick' etc, we need to continue retry */
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auth_fail = _gf_true;
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op_ret = 0;
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}
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--
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1.8.3.1
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