虚拟机sda扩容后，重新分区，扩充root
[root@santiagod ~]# ssh [email protected] The authenticity of host '192.168.3.176 (192.168.3.176)' can't be established. ECDSA key fingerprint is SHA256:LVOeZ5SO52YLiajCs99Ng/hxDz4iTs3kBqnILOV4oCA. Are you sure you want to continue connecting (yes/no/[fingerprint])? yes Warning: Permanently added '192.168.3.176' (ECDSA) to the list of known hosts. [email protected]'s password: Last login: Wed Dec 28 10:14:53 2022 [root@ambari-02 ~]# lsblk #查看硬盘剩余空间 NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 500G 0 disk ├─sda1 8:1 0 1G 0 part /boot └─sda2 8:2 0 199G 0 part ├─centos-root 253:0 0 191.1G 0 lvm / └─centos-swap 253:1 0 7.9G 0 lvm [SWAP] sr0 11:0 1 1024M 0 rom [root@ambari-02 ~]# fdisk /dev/sda #分区 Welcome to fdisk (util-linux 2.23.2). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. Command (m for help): m Command action a toggle a bootable flag b edit bsd disklabel c toggle the dos compatibility flag d delete a partition g create a new empty GPT partition table G create an IRIX (SGI) partition table l list known partition types m print this menu n add a new partition o create a new empty DOS partition table p print the partition table q quit without saving changes s create a new empty Sun disklabel t change a partition's system id u change display/entry units v verify the partition table w write table to disk and exit x extra functionality (experts only) Command (m for help): n #分区 Partition type: p primary (2 primary, 0 extended, 2 free) e extended Select (default p): p #尽量选择主分区 Partition number (3,4, default 3): #默认直接回车 First sector (419430400-1048575999, default 419430400): #默认直接回车 Using default value 419430400 Last sector, +sectors or +size{K,M,G} (419430400-1048575999, default 1048575999): #默认直接回车，分配所有剩余空间 Using default value 1048575999 Partition 3 of type Linux and of size 300 GiB is set Command (m for help): w #保存退出 The partition table has been altered! Calling ioctl() to re-read partition table. WARNING: Re-reading the partition table failed with error 16: Device or resource busy. The kernel still uses the old table. The new table will be used at the next reboot or after you run partprobe(8) or kpartx(8) Syncing disks. [root@ambari-02 ~]# partprobe /dev/sda #重新读取分区 [root@ambari-02 ~]# lsblk #查看新分区是否已就位 NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 500G 0 disk ├─sda1 8:1 0 1G 0 part /boot ├─sda2 8:2 0 199G 0 part │ ├─centos-root 253:0 0 191.1G 0 lvm / │ └─centos-swap 253:1 0 7.9G 0 lvm [SWAP] └─sda3 8:3 0 300G 0 part sr0 11:0 1 1024M 0 rom [root@ambari-02 ~]# vgextend /dev/sda3 No command with matching syntax recognised. Run 'vgextend --help' for more information. Correct command syntax is: vgextend VG PV ... [root@ambari-02 ~]# [root@ambari-02 ~]# vgs #查看卷组名 VG #PV #LV #SN Attr VSize VFree centos 1 2 0 wz--n- <199.00g 4.00m [root@ambari-02 ~]# vgextend centos /dev/sda3 #扩充卷组 Physical volume "/dev/sda3" successfully created. Volume group "centos" successfully extended [root@ambari-02 ~]# lvs #查看逻辑卷名 LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert root centos -wi-ao---- <191.12g swap centos -wi-ao---- <7.88g [root@ambari-02 ~]# lvresize -l +100%free /dev/mapper/centos-root -f #将卷组全部额外空间扩充逻辑卷 Size of logical volume centos/root changed from <191.12 GiB (48926 extents) to <491.12 GiB (125726 extents). Logical volume centos/root successfully resized. [root@ambari-02 ~]# lsblk #验证，查看逻辑卷 NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 500G 0 disk ├─sda1 8:1 0 1G 0 part /boot ├─sda2 8:2 0 199G 0 part │ ├─centos-root 253:0 0 491.1G 0 lvm / │ └─centos-swap 253:1 0 7.9G 0 lvm [SWAP] └─sda3 8:3 0 300G 0 part └─centos-root 253:0 0 491.1G 0 lvm / sr0 11:0 1 1024M 0 rom [root@ambari-02 ~]#
最后，最关键的是文件系统扩容！！！
[root@ambari-02 ~]# xfs_growfs /dev/centos/root #文件系统扩容
meta-data=/dev/mapper/centos-root isize=512 agcount=4, agsize=12525056 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0 spinodes=0
data = bsize=4096 blocks=50100224, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal bsize=4096 blocks=24463, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
data blocks changed from 50100224 to 128743424
[root@ambari-02 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 500G 0 disk
├─sda1 8:1 0 1G 0 part /boot
├─sda2 8:2 0 199G 0 part
│ ├─centos-root 253:0 0 491.1G 0 lvm /
│ └─centos-swap 253:1 0 7.9G 0 lvm [SWAP]
└─sda3 8:3 0 300G 0 part
└─centos-root 253:0 0 491.1G 0 lvm /
sr0 11:0 1 1024M 0 rom
[root@ambari-02 ~]# df -Th #查看，验证文件系统已扩容
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/centos-root xfs 492G 39G 453G 8% /
devtmpfs devtmpfs 12G 0 12G 0% /dev
tmpfs tmpfs 12G 0 12G 0% /dev/shm
tmpfs tmpfs 12G 17M 12G 1% /run
tmpfs tmpfs 12G 0 12G 0% /sys/fs/cgroup
/dev/sda1 xfs 1014M 145M 870M 15% /boot
tmpfs tmpfs 2.4G 0 2.4G 0% /run/user/0
[root@ambari-02 ~]#
遇到问题：三节点集群，第三个节点扩容失败
[root@ambari-03 ~]# vgextend centos /dev/sda3
/etc/lvm/archive/.lvm_ambari-03_12302_2001839236: write error failed: No space left on device