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authorKrishnan Parthasarathi <kp@gluster.com>2011-04-27 04:46:23 +0000
committerAnand Avati <avati@gluster.com>2011-05-09 13:26:40 -0700
commita7ca559bdebfcef9a38dfedb8e4757d42431bf94 (patch)
tree3ee7509f982df3d2bf1f72294e983622e3a2bb9b /xlators/mgmt
parent57b53ca592c8d2d01767c7943cb071eb24e6835f (diff)
Detect read-only filesystem and fail the brick creation operation.
Signed-off-by: Krishnan Parthasarathi <kp@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2609 (Error message not properly provided when trying to create a volume from a read-only source) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2609
Diffstat (limited to 'xlators/mgmt')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-utils.c40
1 files changed, 30 insertions, 10 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c
index ad2b7dde893..1dcfdf4b4c7 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.c
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.c
@@ -35,6 +35,7 @@
#include "md5.h"
#include "compat-errno.h"
#include "statedump.h"
+#include "syscall.h"
#include "glusterd-mem-types.h"
#include "glusterd.h"
#include "glusterd-op-sm.h"
@@ -2915,25 +2916,44 @@ glusterd_brick_create_path (char *host, char *path, mode_t mode,
snprintf (msg, sizeof (msg), "brick %s:%s, "
"path %s is not a directory", host, path, path);
gf_log ("", GF_LOG_ERROR, "%s", msg);
- *op_errstr = gf_strdup (msg);
ret = -1;
goto out;
} else if (!ret) {
- goto out;
+ goto check_xattr;
+ } else {
+ ret = mkdir (path, mode);
+ if (ret) {
+ snprintf (msg, sizeof (msg), "brick: %s:%s, path "
+ "creation failed, reason: %s",
+ host, path, strerror(errno));
+ gf_log ("glusterd", GF_LOG_ERROR, "%s", msg);
+ goto out;
+ } else {
+ goto check_xattr;
+ }
}
- ret = mkdir (path, mode);
- if ((ret == -1) && (EEXIST != errno)) {
- snprintf (msg, sizeof (msg), "brick: %s:%s, path "
- "creation failed, reason: %s",
- host, path, strerror(errno));
- gf_log ("glusterd",GF_LOG_ERROR, "%s", msg);
- *op_errstr = gf_strdup (msg);
+/* To check if filesystem is read-only
+ and if it supports extended attributes */
+check_xattr:
+ ret = sys_lsetxattr (path, "trusted.glusterfs.test",
+ "working", 8, 0);
+ if (ret) {
+ snprintf (msg, sizeof (msg), "glusterfs is not"
+ " supported on brick: %s:%s.\nSetting"
+ " extended attributes failed, reason:"
+ " %s.", host, path, strerror(errno));
+
+ gf_log ("glusterd", GF_LOG_ERROR, "%s", msg);
} else {
- ret = 0;
+ /* Remove xattr *cannot* fail after setting it succeeded */
+ sys_lremovexattr (path, "trusted.glusterfs.test");
}
out:
+ if (msg[0] != '\0')
+ *op_errstr = gf_strdup (msg);
+
gf_log ("", GF_LOG_DEBUG, "returning %d", ret);
return ret;
}