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authorJohn L. Hammond <[email protected]>2018-01-17 14:24:42 -0600
committerBrian Behlendorf <[email protected]>2018-01-17 12:24:42 -0800
commit51d1b58ef3467c3a9711c65458f93063dd17354f (patch)
treec83ffecba9138c585214df028984c4103911f7b8
parent43cb30b3ce6ee3c3041276c93594ae61e7daaf86 (diff)
Emit an error message before MMP suspends pool
In mmp_thread(), emit an MMP specific error message before calling zio_suspend() so that the administrator will understand why the pool is being suspended. Reviewed-by: Olaf Faaland <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: John L. Hammond <[email protected]> Closes #7048
-rw-r--r--module/zfs/mmp.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/module/zfs/mmp.c b/module/zfs/mmp.c
index c4b139757..d13d1590f 100644
--- a/module/zfs/mmp.c
+++ b/module/zfs/mmp.c
@@ -26,6 +26,7 @@
#include <sys/mmp.h>
#include <sys/spa.h>
#include <sys/spa_impl.h>
+#include <sys/time.h>
#include <sys/vdev.h>
#include <sys/vdev_impl.h>
#include <sys/zfs_context.h>
@@ -429,6 +430,10 @@ mmp_thread(void *arg)
*/
if (!suspended && mmp_fail_intervals && multihost &&
(start - mmp->mmp_last_write) > max_fail_ns) {
+ cmn_err(CE_WARN, "MMP writes to pool '%s' have not "
+ "succeeded in over %llus; suspending pool",
+ spa_name(spa),
+ NSEC2SEC(start - mmp->mmp_last_write));
zio_suspend(spa, NULL);
}