Files
scylladb/dist/common/scripts/scylla_raid_setup
Takuya ASADA c0a2ca96dd dist/common/scripts/scylla_raid_setup: prevent renaming MDRAID device after reboot
On Debian variants, mdadm.conf should placed at /etc/mdadm instead of /etc.
Also it seems we need update-initramfs to fix renaming issue.

Fixes #2502

Signed-off-by: Takuya ASADA <syuu@scylladb.com>
Message-Id: <1499179912-14125-1-git-send-email-syuu@scylladb.com>
(cherry picked from commit 71624d7919)
2017-07-04 18:07:33 +03:00

133 lines
3.0 KiB
Bash
Executable File

#!/bin/bash -e
#
# Copyright (C) 2015 ScyllaDB
. /usr/lib/scylla/scylla_lib.sh
print_usage() {
echo "scylla_raid_setup --disks /dev/hda,/dev/hdb... --raiddev /dev/md0 --update-fstab --root /var/lib/scylla --volume-role [all|data|commitlog]"
echo " --disks specify disks for RAID"
echo " --raiddev MD device name for RAID"
echo " --update-fstab update /etc/fstab for RAID"
echo " --root specify the root of the tree"
echo " --volume-role specify how will this device be used (data, commitlog, or all)"
exit 1
}
RAID=/dev/md0
FSTAB=0
ROOT=/var/lib/scylla
ROLE="all"
while [ $# -gt 0 ]; do
case "$1" in
"--disks")
DISKS=`echo "$2"|tr -s ',' ' '`
NR_DISK=$((`echo "$2"|grep , -o|wc -w` + 1))
shift 2
;;
"--raiddev")
RAID="$2"
shift 2
;;
"--update-fstab")
FSTAB=1
shift 1
;;
"--root")
ROOT="$2"
shift 2
;;
"--volume-role")
ROLE="$2"
shift 2
;;
*)
print_usage
;;
esac
done
ROOT=${ROOT%/}
case "$ROLE" in
"all")
MOUNT_AT=$ROOT
;;
"data")
MOUNT_AT="$ROOT/data"
;;
"commitlog")
MOUNT_AT="$ROOT/commitlog"
;;
*)
echo "Invalid role specified ($ROLE)"
print_usage
;;
esac
if [ "$DISKS" = "" ]; then
print_usage
fi
for dsk in $DISKS; do
if [ ! -b $dsk ]; then
echo "$dsk is not found"
exit 1
fi
done
echo Creating RAID0 for scylla using $NR_DISK disk\(s\): $DISKS
if [ -e $RAID ]; then
echo "$RAID is already using"
exit 1
fi
if mountpoint -q $MOUNT_AT; then
echo "$MOUNT_AT is already mounted"
exit 1
fi
if is_debian_variant; then
env DEBIAN_FRONTEND=noninteractive apt-get -y install mdadm xfsprogs
elif is_gentoo_variant; then
emerge -uq sys-fs/mdadm sys-fs/xfsprogs
else
yum -y install mdadm xfsprogs
fi
if [ "$ID" = "ubuntu" ] && [ "$VERSION_ID" = "14.04" ]; then
mdadm --create --verbose --force --run $RAID --level=0 -c1024 --raid-devices=$NR_DISK $DISKS
mkfs.xfs $RAID -f
else
for dsk in $DISKS; do
blkdiscard $dsk &
done
wait
mdadm --create --verbose --force --run $RAID --level=0 -c1024 --raid-devices=$NR_DISK $DISKS
mkfs.xfs $RAID -f -K
fi
if is_debian_variant; then
mdadm --detail --scan > /etc/mdadm/mdadm.conf
else
mdadm --detail --scan > /etc/mdadm.conf
fi
mkdir -p "$MOUNT_AT"
mount -t xfs -o noatime $RAID "$MOUNT_AT"
# create this unconditionally so we are more robust about ordering
# if the script is run multiple times. But must do after mount in case
# we are mounting the root
mkdir -p "$ROOT/data"
mkdir -p "$ROOT/commitlog"
mkdir -p "$ROOT/coredump"
chown scylla:scylla "$ROOT"
chown scylla:scylla "$ROOT"/*
if [ $FSTAB -ne 0 ]; then
UUID=`blkid $RAID | awk '{print $2}'`
echo "$UUID $MOUNT_AT xfs noatime 0 0" >> /etc/fstab
fi
if is_debian_variant;
update-initramfs -u
fi