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authorRavishankar N <ravishankar@redhat.com>2015-12-21 10:09:53 +0000
committerPranith Kumar Karampuri <pkarampu@redhat.com>2015-12-28 23:26:57 -0800
commit101243860bca1bbda8a03ab76f6753ecc10799ed (patch)
treea2d4828eb25d2945f1c6c59aa39fe0644ac87ed5
parentf88369e75fc2482eec68da798d849acaa30c5de8 (diff)
afr: warn if pending xattrs missing during init()
Backport of http://review.gluster.org/#/c/13038/ Since commit 6e635284a4411b816d4d860a28262c9e6dc4bd6a (glusterfs-3.7.7), the afr pending xattrs are stored in the volfile and used by afr when it initializes. If a cluster is upgraded, prevent afr from loading until the op-version has been bumped up to 3.7.7 and the volfiles have been regenerated using a volume set command. Without this fix, AFR will crash when initialzing. Change-Id: I14249dedb3f2f77cd754d78d8a9a70fdc5fc8c10 BUG: 1293536 Signed-off-by: Ravishankar N <ravishankar@redhat.com> (cherry picked from commit 4bfbabfdd698e93a1dc1aad5590ed18f10936c55) Reviewed-on: http://review.gluster.org/13058 Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
-rw-r--r--xlators/cluster/afr/src/afr-messages.h11
-rw-r--r--xlators/cluster/afr/src/afr.c7
2 files changed, 17 insertions, 1 deletions
diff --git a/xlators/cluster/afr/src/afr-messages.h b/xlators/cluster/afr/src/afr-messages.h
index d07c7bc2170..8217767fc4f 100644
--- a/xlators/cluster/afr/src/afr-messages.h
+++ b/xlators/cluster/afr/src/afr-messages.h
@@ -45,7 +45,7 @@
*/
#define GLFS_COMP_BASE_AFR GLFS_MSGID_COMP_AFR
-#define GLFS_NUM_MESSAGES 39
+#define GLFS_NUM_MESSAGES 40
#define GLFS_MSGID_END (GLFS_COMP_BASE_AFR + GLFS_NUM_MESSAGES + 1)
#define glfs_msg_start_x GLFS_COMP_BASE_AFR, "Invalid: Start of messages"
@@ -347,5 +347,14 @@
#define AFR_MSG_REPLACE_BRICK_FAILED (GLFS_COMP_BASE_AFR + 39)
+/*!
+ * @messageid 108039
+ * @diagnosis AFR was unable to be loaded because the pending-changelog xattrs
+ * were not found in the volfile.
+ * @recommendedaction Please ensure cluster op-version is atleast 30707 and the
+ * volfiles are regenerated.
+*/
+#define AFR_MSG_NO_CHANGELOG (GLFS_COMP_BASE_AFR + 40)
+
#define glfs_msg_end_x GLFS_MSGID_END, "Invalid: End of messages"
#endif /* !_AFR_MESSAGES_H_ */
diff --git a/xlators/cluster/afr/src/afr.c b/xlators/cluster/afr/src/afr.c
index 4c072b6c69f..34de74da977 100644
--- a/xlators/cluster/afr/src/afr.c
+++ b/xlators/cluster/afr/src/afr.c
@@ -411,6 +411,13 @@ init (xlator_t *this)
ret = -ENOMEM;
goto out;
}
+ if (!xattrs_list) {
+ ret = -EINVAL;
+ gf_msg (this->name, GF_LOG_ERROR, -ret, AFR_MSG_NO_CHANGELOG,
+ "Unable to fetch afr pending changelogs. Is op-version"
+ " >= 30707?");
+ goto out;
+ }
ptr = gf_strdup (xattrs_list);
if (!ptr) {
ret = -ENOMEM;