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From f90df1167bc70c634ba33c181232321da6770709 Mon Sep 17 00:00:00 2001
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From: Raghavendra Bhat <raghavendra@redhat.com>
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Date: Tue, 25 Jun 2019 10:51:33 -0400
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Subject: [PATCH 256/261] features/snapview-server: use the same volfile server
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for gfapi options
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snapview server xlator makes use of "localhost" as the volfile server while
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initing the new glfs instance to talk to a snapshot. While localhost is fine,
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better use the same volfile server that was used to start the snapshot
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daemon containing the snapview-server xlator.
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Upstream Patch:
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>Change-Id: I4485d39b0e3d066f481adc6958ace53ea33237f7
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>fixes: bz#1725211
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>Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
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> patch: https://review.gluster.org/#/c/glusterfs/+/22974/
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BUG: 1722757
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Change-Id: I4485d39b0e3d066f481adc6958ace53ea33237f7
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Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/175984
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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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.../snapview-server/src/snapview-server-helpers.c | 44 ++++++++++++++++++++--
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.../snapview-server/src/snapview-server-messages.h | 2 +-
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2 files changed, 42 insertions(+), 4 deletions(-)
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diff --git a/xlators/features/snapview-server/src/snapview-server-helpers.c b/xlators/features/snapview-server/src/snapview-server-helpers.c
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index 5514a54..62c1dda 100644
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--- a/xlators/features/snapview-server/src/snapview-server-helpers.c
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+++ b/xlators/features/snapview-server/src/snapview-server-helpers.c
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@@ -476,6 +476,7 @@ __svs_initialise_snapshot_volume(xlator_t *this, const char *name,
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char logfile[PATH_MAX] = {
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0,
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};
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+ char *volfile_server = NULL;
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GF_VALIDATE_OR_GOTO("snapview-server", this, out);
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GF_VALIDATE_OR_GOTO(this->name, this->private, out);
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@@ -512,14 +513,50 @@ __svs_initialise_snapshot_volume(xlator_t *this, const char *name,
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goto out;
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}
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- ret = glfs_set_volfile_server(fs, "tcp", "localhost", 24007);
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+ /*
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+ * Before, localhost was used as the volfile server. But, with that
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+ * method, accessing snapshots started giving ENOENT error if a
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+ * specific bind address is mentioned in the glusterd volume file.
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+ * Check the bug https://bugzilla.redhat.com/show_bug.cgi?id=1725211.
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+ * So, the new method is tried below, where, snapview-server first
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+ * uses the volfile server used by the snapd (obtained from the
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+ * command line arguments saved in the global context of the process).
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+ * If the volfile server in global context is NULL, then localhost
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+ * is tried (like before).
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+ */
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+ if (this->ctx->cmd_args.volfile_server) {
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+ volfile_server = gf_strdup(this->ctx->cmd_args.volfile_server);
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+ if (!volfile_server) {
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+ gf_msg(this->name, GF_LOG_WARNING, ENOMEM,
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+ SVS_MSG_VOLFILE_SERVER_GET_FAIL,
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+ "failed to copy volfile server %s. ",
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+ this->ctx->cmd_args.volfile_server);
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+ ret = -1;
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+ goto out;
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+ }
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+ } else {
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+ gf_msg(this->name, GF_LOG_WARNING, ENOMEM,
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+ SVS_MSG_VOLFILE_SERVER_GET_FAIL,
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+ "volfile server is NULL in cmd args. "
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+ "Trying with localhost");
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+ volfile_server = gf_strdup("localhost");
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+ if (!volfile_server) {
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+ gf_msg(this->name, GF_LOG_WARNING, ENOMEM,
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+ SVS_MSG_VOLFILE_SERVER_GET_FAIL,
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+ "failed to copy volfile server localhost.");
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+ ret = -1;
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+ goto out;
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+ }
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+ }
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+
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+ ret = glfs_set_volfile_server(fs, "tcp", volfile_server, 24007);
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if (ret) {
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gf_msg(this->name, GF_LOG_ERROR, local_errno,
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SVS_MSG_SET_VOLFILE_SERVR_FAILED,
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"setting the "
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- "volfile server for snap volume %s "
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+ "volfile server %s for snap volume %s "
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"failed",
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- dirent->name);
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+ volfile_server, dirent->name);
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goto out;
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}
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@@ -561,6 +598,7 @@ out:
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dirent->fs = fs;
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}
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+ GF_FREE(volfile_server);
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return fs;
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}
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diff --git a/xlators/features/snapview-server/src/snapview-server-messages.h b/xlators/features/snapview-server/src/snapview-server-messages.h
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index 8548015..f634ab5 100644
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--- a/xlators/features/snapview-server/src/snapview-server-messages.h
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+++ b/xlators/features/snapview-server/src/snapview-server-messages.h
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@@ -49,6 +49,6 @@ GLFS_MSGID(SNAPVIEW_SERVER, SVS_MSG_NO_MEMORY, SVS_MSG_MEM_ACNT_FAILED,
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SVS_MSG_CLOSEDIR_FAILED, SVS_MSG_CLOSE_FAILED,
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SVS_MSG_GFID_GEN_FAILED, SVS_MSG_GLFS_NEW_FAILED,
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SVS_MSG_SET_VOLFILE_SERVR_FAILED, SVS_MSG_SET_LOGGING_FAILED,
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- SVS_MSG_GLFS_INIT_FAILED);
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+ SVS_MSG_VOLFILE_SERVER_GET_FAIL, SVS_MSG_GLFS_INIT_FAILED);
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#endif /* !_SNAPVIEW_CLIENT_MESSAGES_H_ */
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--
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1.8.3.1
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