#include <lustre_disk.h>
#include <lustre_param.h>
#include <lustre_cache.h>
+#include <obd_support.h>
#include "llite_internal.h"
cfs_mem_cache_t *ll_file_data_slab;
*flags &= ~tmp;
goto next;
}
+ tmp = ll_set_opt("lazystatfs", s1, LL_SBI_LAZYSTATFS);
+ if (tmp) {
+ *flags |= tmp;
+ goto next;
+ }
+ tmp = ll_set_opt("nolazystatfs", s1, LL_SBI_LAZYSTATFS);
+ if (tmp) {
+ *flags &= ~tmp;
+ goto next;
+ }
LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n",
s1);
RETURN(-EINVAL);
CDEBUG(D_SUPER, "MDC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
osfs->os_bavail, osfs->os_blocks, osfs->os_ffree,osfs->os_files);
+ if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
+ flags |= OBD_STATFS_NODELAY;
+
rc = obd_statfs_rqset(class_exp2obd(sbi->ll_osc_exp),
&obd_osfs, max_age, flags);
if (rc) {
if (sbi->ll_flags & LL_SBI_ACL)
seq_puts(seq, ",acl");
+ if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
+ seq_puts(seq, ",lazystatfs");
+
RETURN(0);
}
sbi->ll_sa_miss);
}
+static int ll_rd_lazystatfs(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ struct super_block *sb = data;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+
+ return snprintf(page, count, "%u\n",
+ (sbi->ll_flags & LL_SBI_LAZYSTATFS) ? 1 : 0);
+}
+
+static int ll_wr_lazystatfs(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ struct super_block *sb = data;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ int val, rc;
+
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc)
+ return rc;
+
+ if (val)
+ sbi->ll_flags |= LL_SBI_LAZYSTATFS;
+ else
+ sbi->ll_flags &= ~LL_SBI_LAZYSTATFS;
+
+ return count;
+}
+
static struct lprocfs_vars lprocfs_llite_obd_vars[] = {
{ "uuid", ll_rd_sb_uuid, 0, 0 },
//{ "mntpt_path", ll_rd_path, 0, 0 },
ll_wr_lockless_truncate, 0},
{ "statahead_max", ll_rd_statahead_max, ll_wr_statahead_max, 0 },
{ "statahead_stats", ll_rd_statahead_stats, 0, 0 },
+ { "lazystatfs", ll_rd_lazystatfs, ll_wr_lazystatfs, 0 },
{ 0 }
};
}
run_test 49 "check PARAM_SYS_LDLM_TIMEOUT option of MKFS.LUSTRE"
+lazystatfs() {
+ # Test both statfs and lfs df and fail if either one fails
+ multiop_bg_pause $1 f_
+ RC1=$?
+ PID=$!
+ killall -USR1 multiop
+ [ $RC1 -ne 0 ] && log "lazystatfs multiop failed"
+ wait $PID || { RC1=$?; log "multiop return error "; }
+
+ $LFS df &
+ PID=$!
+ sleep 5
+ kill -s 0 $PID
+ RC2=$?
+ if [ $RC2 -eq 0 ]; then
+ kill -s 9 $PID
+ log "lazystatfs df failed"
+ fi
+
+ RC=0
+ [[ $RC1 -ne 0 || $RC2 -eq 0 ]] && RC=1
+ return $RC
+}
+
+test_50a() {
+ setup
+ lctl set_param llite.$FSNAME-*.lazystatfs=1
+ touch $DIR/$tfile
+
+ lazystatfs $MOUNT || error "lazystatfs failed but no down servers"
+
+ cleanup || return $?
+}
+run_test 50a "lazystatfs all servers available =========================="
+
+test_50b() {
+ setup
+ lctl set_param llite.$FSNAME-*.lazystatfs=1
+ touch $DIR/$tfile
+
+ # Wait for client to detect down OST
+ stop_ost || error "Unable to stop OST1"
+ CONN_PROC="osc.$FSNAME-OST0000-osc.ost_server_uuid"
+ CONN_STATE=`lctl get_param -n $CONN_PROC | cut -f2`
+ while [ ${CONN_STATE} = "FULL" ]; do
+ sleep 1
+ CONN_STATE=`lctl get_param -n $CONN_PROC | cut -f2`
+ done
+ lazystatfs $MOUNT || error "lazystatfs should don't have returned EIO"
+
+ umount_client $MOUNT || error "Unable to unmount client"
+ stop_mds || error "Unable to stop MDS"
+}
+run_test 50b "lazystatfs all servers down =========================="
+
+test_50c() {
+ start_mds || error "Unable to start MDS"
+ start_ost || error "Unable to start OST1"
+ start_ost2 || error "Unable to start OST2"
+ mount_client $MOUNT || error "Unable to mount client"
+ lctl set_param llite.$FSNAME-*.lazystatfs=1
+ touch $DIR/$tfile
+
+ # Wait for client to detect down OST
+ stop_ost || error "Unable to stop OST1"
+ CONN_PROC="osc.$FSNAME-OST0000-osc.ost_server_uuid"
+ CONN_STATE=`lctl get_param -n $CONN_PROC | cut -f2`
+ while [ ${CONN_STATE} = "FULL" ]; do
+ sleep 1
+ CONN_STATE=`lctl get_param -n $CONN_PROC | cut -f2`
+ done
+ lazystatfs $MOUNT || error "lazystatfs failed with one down server"
+
+ umount_client $MOUNT || error "Unable to unmount client"
+ stop_ost2 || error "Unable to stop OST2"
+ stop_mds || error "Unable to stop MDS"
+}
+run_test 50c "lazystatfs one server down =========================="
+
+test_50d() {
+ start_mds || error "Unable to start MDS"
+ start_ost || error "Unable to start OST1"
+ start_ost2 || error "Unable to start OST2"
+ mount_client $MOUNT || error "Unable to mount client"
+ lctl set_param llite.$FSNAME-*.lazystatfs=1
+ touch $DIR/$tfile
+
+ # Issue the statfs during the window where the client still
+ # belives the OST to be available but it is in fact down.
+ # No failure just a statfs which hangs for a timeout interval.
+ stop_ost || error "Unable to stop OST1"
+ lazystatfs $MOUNT || error "lazystatfs failed with one down server"
+
+ umount_client $MOUNT || error "Unable to unmount client"
+ stop_ost2 || error "Unable to stop OST2"
+ stop_mds || error "Unable to stop MDS"
+}
+run_test 50d "lazystatfs client/server conn race =========================="
+
+test_50e() {
+ local RC1
+ local pid
+ CONN_PROC="osc.$FSNAME-OST0000-osc.ost_server_uuid"
+
+ start_mds || return 1
+ #first client should see only one ost
+ start_ost || return 2
+ CONN_STATE=`lctl get_param -n $CONN_PROC | cut -f2`
+ while [ ${CONN_STATE} != "FULL" ]; do
+ sleep 1
+ CONN_STATE=`lctl get_param -n $CONN_PROC | cut -f2`
+ done
+
+ lctl set_param llite.$FSNAME-*.lazystatfs=0
+
+ # Wait for client to detect down OST
+ stop_ost || error "Unable to stop OST1"
+
+ CONN_STATE=`lctl get_param -n $CONN_PROC | cut -f2`
+ while [ ${CONN_STATE} = "FULL" ]; do
+ sleep 1
+ CONN_STATE=`lctl get_param -n $CONN_PROC | cut -f2`
+ done
+
+ mount_client $MOUNT || error "Unable to mount client"
+
+ multiop_bg_pause $MOUNT _f
+ RC1=$?
+ pid=$!
+
+ if [ $RC1 -ne 0 ]; then
+ log "lazystatfs multiop failed $RC1"
+ else
+ kill -USR1 $pid
+ sleep $(( $TIMEOUT+1 ))
+ kill -0 $pid
+ [ $? -ne 0 ] && error "process isn't sleep"
+ start_ost || error "Unable to start OST1"
+ wait $pid || error "statfs failed"
+ fi
+
+ umount_client $MOUNT || error "Unable to unmount client"
+ stop_ost || error "Unable to stop OST1"
+ stop_mds || error "Unable to stop MDS"
+}
+run_test 50e "normal statfs all servers down =========================="
+
+test_50f() {
+ local RC1
+ local pid
+ CONN_PROC="osc.$FSNAME-OST0001-osc.ost_server_uuid"
+
+ start_mds || error "Unable to start mds"
+ #first client should see only one ost
+ start_ost || error "Unable to start OST1"
+ start_ost2 || error "Unable to start OST2"
+ CONN_STATE=`lctl get_param -n $CONN_PROC | cut -f2`
+ while [ ${CONN_STATE} != "FULL" ]; do
+ sleep 1
+ CONN_STATE=`lctl get_param -n $CONN_PROC | cut -f2`
+ done
+
+ lctl set_param llite.$FSNAME-*.lazystatfs=0
+
+ # Wait for client to detect down OST
+ stop_ost2 || error "Unable to stop OST2"
+
+ CONN_STATE=`lctl get_param -n $CONN_PROC | cut -f2`
+ while [ ${CONN_STATE} = "FULL" ]; do
+ sleep 1
+ CONN_STATE=`lctl get_param -n $CONN_PROC | cut -f2`
+ done
+
+ mount_client $MOUNT || error "Unable to mount client"
+
+ multiop_bg_pause $MOUNT _f
+ RC1=$?
+ pid=$!
+
+ if [ $RC1 -ne 0 ]; then
+ log "lazystatfs multiop failed $RC1"
+ else
+ kill -USR1 $pid
+ sleep $(( $TIMEOUT+1 ))
+ kill -0 $pid
+ [ $? -ne 0 ] && error "process isn't sleep"
+ start_ost2 || error "Unable to start OST1"
+ wait $pid || error "statfs failed"
+ fi
+
+ umount_client $MOUNT || error "Unable to unmount client"
+ stop_ost || error "Unable to stop OST1"
+ stop_mds || error "Unable to stop MDS"
+}
+run_test 50f "normal statfs one server in down =========================="
+
equals_msg `basename $0`: test complete
[ -f "$TESTSUITELOG" ] && cat $TESTSUITELOG && grep -q FAIL $TESTSUITELOG && exit 1 || true
git://git.whamcloud.com / fs / lustre-release.git / commitdiff