情况概要
使用OCP 部署3节点OB集群，查看各个节点没有cgroup没有目录。
ll /home/admin/oceanbase/cgroup
ll /sys/fs/cgroup/cpu/oceanbase
但 教材中说OCP 会自动配置cgroup，查看参数也是true；
问题：
为什么没有相关目录？
使用OCP 社区版 安装OB 社区版，测试同样没有cgroup目录；
OCP版本
OB 版本
Welcome to the OceanBase. Commands end with ; or \g.
Your OceanBase connection id is 3221542210
Server version: OceanBase_CE 4.2.1.8 (r108000022024072217-3149c25ca2dadbb7707686ad02a1367b1b43e0b5) (Built Jul 23 2024 02:01:58)
Copyright (c) 2000, 2018, OceanBase and/or its affiliates. All rights reserved.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
obclient(root@sys)[oceanbase]> select version();
+------------------------------+
| version() |
+------------------------------+
| 5.7.25-OceanBase_CE-v4.2.1.8 |
+------------------------------+
1 row in set (0.002 sec)
obclient(root@sys)[oceanbase]>
系统版本
[admin@rocky95 ~]$ cat /etc/os-release
NAME="Rocky Linux"
VERSION="9.5 (Blue Onyx)"
ID="rocky"
ID_LIKE="rhel centos fedora"
VERSION_ID="9.5"
PLATFORM_ID="platform:el9"
PRETTY_NAME="Rocky Linux 9.5 (Blue Onyx)"
ANSI_COLOR="0;32"
LOGO="fedora-logo-icon"
CPE_NAME="cpe:/o:rocky:rocky:9::baseos"
HOME_URL="https://rockylinux.org/"
VENDOR_NAME="RESF"
VENDOR_URL="https://resf.org/"
BUG_REPORT_URL="https://bugs.rockylinux.org/"
SUPPORT_END="2032-05-31"
ROCKY_SUPPORT_PRODUCT="Rocky-Linux-9"
ROCKY_SUPPORT_PRODUCT_VERSION="9.5"
REDHAT_SUPPORT_PRODUCT="Rocky Linux"
REDHAT_SUPPORT_PRODUCT_VERSION="9.5"
[admin@rocky95 ~]$ uname -r
5.14.0-503.14.1.el9_5.x86_64
OCP安装OB时 cgroup 开启
查看相关目录cgroup没有教材中的配置示例
[root@rocky95 cgroup]# ll /home/admin/oceanbase/cgroup
ls: cannot access '/home/admin/oceanbase/cgroup': No such file or directory
[root@rocky95 cgroup]# ll /home/admin/oceanbase/
total 16
drwxr-xr-x 2 root root 4096 Jul 23 2024 admin
drwxr-xr-x 2 admin admin 109 Nov 13 16:57 audit
drwxr-xr-x 2 root root 142 Nov 13 16:53 bin
drwxr-xr-x 2 admin admin 4096 Nov 13 17:11 etc
drwxr-xr-x 2 root root 109 Jul 23 2024 lib
drwxr-xr-x 2 admin admin 4096 Nov 13 17:27 log
drwxr-xr-x 2 root root 4096 Jul 23 2024 profile
drwxr-xr-x 2 admin admin 74 Nov 13 16:57 run
drwxr-xr-x 3 admin admin 23 Nov 13 16:53 store
drwxr-xr-x 2 admin admin 6 Nov 13 16:53 wallet
[root@rocky95 cgroup]# ll /sys/fs/cgroup/cpu/oceanbase
ls: cannot access '/sys/fs/cgroup/cpu/oceanbase': No such file or directory
[root@rocky95 cgroup]# ll /sys/fs/cgroup
total 0
-r--r--r-- 1 root root 0 Nov 11 14:28 cgroup.controllers
-rw-r--r-- 1 root root 0 Nov 13 17:28 cgroup.max.depth
-rw-r--r-- 1 root root 0 Nov 13 17:28 cgroup.max.descendants
-rw-r--r-- 1 root root 0 Nov 11 14:28 cgroup.procs
-r--r--r-- 1 root root 0 Nov 13 17:28 cgroup.stat
-rw-r--r-- 1 root root 0 Nov 13 16:13 cgroup.subtree_control
-rw-r--r-- 1 root root 0 Nov 13 17:28 cgroup.threads
dr-xr-xr-x 2 root root 0 Nov 13 16:34 cpuset,cpu,cpuacct
-r--r--r-- 1 root root 0 Nov 13 17:28 cpu.stat
-r--r--r-- 1 root root 0 Nov 13 17:28 cpu.stat.local
drwxr-xr-x 2 root root 0 Nov 11 14:28 dev-hugepages.mount
drwxr-xr-x 2 root root 0 Nov 11 14:28 dev-mqueue.mount
drwxr-xr-x 2 root root 0 Nov 11 14:28 init.scope
-rw-r--r-- 1 root root 0 Nov 13 17:28 io.cost.model
-rw-r--r-- 1 root root 0 Nov 13 17:28 io.cost.qos
-r--r--r-- 1 root root 0 Nov 13 17:28 io.stat
-r--r--r-- 1 root root 0 Nov 13 17:28 memory.numa_stat
--w------- 1 root root 0 Nov 13 17:28 memory.reclaim
-r--r--r-- 1 root root 0 Nov 13 17:28 memory.stat
-r--r--r-- 1 root root 0 Nov 13 17:28 misc.capacity
-r--r--r-- 1 root root 0 Nov 13 17:28 misc.current
drwxr-xr-x 2 root root 0 Nov 11 14:28 sys-fs-fuse-connections.mount
drwxr-xr-x 2 root root 0 Nov 11 14:28 sys-kernel-config.mount
drwxr-xr-x 2 root root 0 Nov 11 14:28 sys-kernel-debug.mount
drwxr-xr-x 2 root root 0 Nov 11 14:28 sys-kernel-tracing.mount
drwxr-xr-x 50 root root 0 Nov 13 17:28 system.slice
drwxr-xr-x 5 root root 0 Nov 13 16:13 user.slice
[root@rocky95 cgroup]#
mount挂载信息
[admin@rocky95 ~]$ mount
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
devtmpfs on /dev type devtmpfs (rw,nosuid,size=4096k,nr_inodes=8153011,mode=755,inode64)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,inode64)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,size=13057924k,nr_inodes=819200,mode=755,inode64)
cgroup2 on /sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate,memory_recursiveprot)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
bpf on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
/dev/mapper/rl-root on / type xfs (rw,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=29,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=20631)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
tracefs on /sys/kernel/tracing type tracefs (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime)
none on /run/credentials/systemd-sysctl.service type ramfs (ro,nosuid,nodev,noexec,relatime,mode=700)
none on /run/credentials/systemd-tmpfiles-setup-dev.service type ramfs (ro,nosuid,nodev,noexec,relatime,mode=700)
/dev/nvme0n1p2 on /boot type xfs (rw,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota)
/dev/nvme0n1p1 on /boot/efi type vfat (rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=ascii,shortname=winnt,errors=remount-ro)
/dev/mapper/datavg-lvdata on /data type ext4 (rw,noatime,nodelalloc)
none on /run/credentials/systemd-tmpfiles-setup.service type ramfs (ro,nosuid,nodev,noexec,relatime,mode=700)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw,relatime)
tmpfs on /run/user/42 type tmpfs (rw,nosuid,nodev,relatime,size=6528960k,nr_inodes=1632240,mode=700,uid=42,gid=42,inode64)
tmpfs on /run/user/0 type tmpfs (rw,nosuid,nodev,relatime,size=6528960k,nr_inodes=1632240,mode=700,inode64)
tmpfs on /run/user/1001 type tmpfs (rw,nosuid,nodev,relatime,size=6528960k,nr_inodes=1632240,mode=700,uid=1001,gid=1001,inode64)
cgroup on /sys/fs/cgroup/cpuset,cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset,cpu,cpuacct)
