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kofj
V2EX  ›  云计算

Ceph 启动后一直 active+undersized+degraded,求点醒.

  •  
  •   kofj · 2015-04-15 17:56:29 +08:00 · 16915 次点击
    这是一个创建于 3492 天前的主题,其中的信息可能已经有所发展或是发生改变。

    第一次接触Ceph,已经实验了两天,具体多少次记不清了,大多数情况一启动起来都是这个状态.看了很多邮件列表,一直没找到解决方法.原因不明...

    vagrant中部署的

    [root@ceph1 ~]# ceph -v
    ceph version 0.87.1 (283c2e7cfa2457799f534744d7d549f83ea1335e)

    系统信息
    ```
    [root@ceph1 ~]# cat /etc/issue
    CentOS release 6.6 (Final)
    Kernel \r on an \m

    [root@ceph1 ~]# uname -a
    Linux ceph1 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

    ceph.conf配置文件

    [global]
    auth service required = cephx
    auth client required = cephx
    auth cluster required = cephx
    auth supported = none

    filestore_xattr_use_omap = true # Just 4 ext4
    chooseleaf = 0

    fsid = a1115100-85e8-405d-8b36-35d2428bab46
    osd pool default size = 2
    osd pool default min size = 1

    [mon]
    mon data = /var/lib/ceph/mon/$name

    [mon.a]
    host = ceph1
    mon addr = 192.168.251.100:6789

    [osd]
    osd journal size = 1024
    osd journal = /var/lib/ceph/osd/$name/journal
    osd data = /var/lib/ceph/osd/$name

    [osd.0]
    host = ceph1

    [osd.1]
    host = ceph1

    ceph 信息
    

    [root@ceph1 ~]# ceph osd tree

    id weight type name up/down reweight

    -1 0.4 root default
    -2 0 host ceph
    -3 0.4 host ceph1
    0 0.2 osd.0 up 1

    1 0.2 osd.1 up 1
    ```

    [root@ceph1 ~]# ceph -s
        cluster a1115100-85e8-405d-8b36-35d2428bab46
         health HEALTH_WARN 64 pgs degraded; 64 pgs stuck degraded; 64 pgs stuck unclean; 64 pgs stuck undersized; 64 pgs undersized
         monmap e1: 1 mons at {a=192.168.251.100:6789/0}, election epoch 1, quorum 0 a
         osdmap e25: 3 osds: 2 up, 2 in
          pgmap v47: 64 pgs, 1 pools, 0 bytes data, 0 objects
                6399 MB used, 8906 MB / 16124 MB avail
                      64 active+undersized+degraded
    
    5 条回复    2015-04-25 22:32:42 +08:00
    bfti
        1
    bfti  
       2015-04-15 19:59:47 +08:00
    现在用ceph的企业多么?
    kofj
        2
    kofj  
    OP
       2015-04-16 09:55:49 +08:00
    @bfti 这个不太清楚.
    feicheche
        3
    feicheche  
       2015-04-16 18:29:35 +08:00
    因为你有3个osd,但只有2个up,看看是不是有一个osd没有启动。
    xanpeng
        4
    xanpeng  
       2015-04-18 00:49:47 +08:00
    好久没看了。猜测可能的原因:1) feicheche说的 "3 osds: 2 up, 2in"; 2) 貌似默认3副本,要求跨host,osd够host不够仍会HEALTH_WARN。
    resettarget
        5
    resettarget  
       2015-04-25 22:32:42 +08:00
    我看也是OSD问题,至少要有3个 OSD active,才能HEALTH_OK
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