問題1，ceph application not enabled on 1 pool(s)

解決方法， 手工給pool追加application

root@ceph-node3:~# ceph osd pool application enable cephfs_data cephfs

root@ceph-node3:~# ceph osd pool application enable cephfs_metadata cephfs

root@ceph-node3:~# ceph osd pool application enable rbd rbd --yes-i-really-mean-it

問題2， authentication error connecting to the cluster

root@ceph-client:~# ceph -s

2017-08-05 19:27:40.722096 7fa149759700 0 librados: client.admin authentication

[errno 1] error connecting to the cluster

解決方法

root@ceph-admin:~/my-cluster# ceph-deploy install ceph-client

root@ceph-admin:~/my-cluster# ceph-deploy --overwrite-conf admin ceph-client

root@ceph-client:~# ceph -s

cluster:

id: 135bca7f-4582-4d35-a1fa-aa9b86b9c730

health: HEALTH_OK

services:

mon: 3 daemons, quorum ceph-node1,ceph-node2,ceph-node3

mgr: ceph-node3(active), standbys: ceph-node2, ceph-node1

mds: 1/1/1 up {0=ceph-node3=up:active}, 2 up:standby

osd: 3 osds: 3 up, 3 in

rgw: 3 daemons active

data:

pools: 7 pools, 68 pgs

objects: 212 objects, 3394 bytes

usage: 3509 MB used, 27211 MB / 30720 MB avail

pgs: 68 active+clean

root@ceph-client:~#

問題3， feature set mismatch

在CephFS, RBD測試過程遭遇這個問題, Mount Ceph FS with the Kernel Driver

root@ceph-client:~# mount /root/test_fs

mount error 110 = Connection timed out

root@ceph-client:/var/log# tail -f syslog

Aug 5 14:03:06 ceph-client kernel: [ 565.194592] libceph: mon0 192.168.56.201:6789 feature set mismatch, my 107b84a842aca < servers 40107b84a842aca, missing 400000000000000

解決方法

root@ceph-client:/var/log# ceph osd crush tunables hammer

root@ceph-client:/var/log# ceph osd crush reweight-all

問題4, librados: client.bootstrap-rgw authentication error (1) Operation not permitted

解決方法, 重新copy key到正確路徑

root@ceph-admin:~/my-cluster# cp ceph.bootstrap-rgw.keyring /var/lib/ceph/bootstrap-rgw/ceph.keyring

問題5, s3cmd 無法生成bucket， gaierror: [Errno -2] Name or service not known

問題6, IE無法訪問Bucket - AccessDenied

192.168.56.200:7480/my-

<?xml version="1.0" encoding="UTF-8"?>

-<Error>

<Code>AccessDenied</Code>

<BucketName>my-new-bucket</BucketName>

<RequestId>tx000000000000000000007-00598d4b45-78a3e-default</RequestId>

<HostId>78a3e-default-default</HostId>

</Error>

問題7, 需要disable 4個features,才能mount起來cephfs使用

問題8, osd pg number exceeds 300

解決方法

在ceph-admin上更新配置文件!

vi /root/my-cluster/ceph.conf

mon_pg_warn_max_per_osd = 1000

同步最新配置文件到整個Cluster

ceph-deploy --overwrite-conf config push ceph-admin ceph-node1 ceph-node2 ceph-node3

重啟各個Mon, OSD

root@ceph-node3:/etc/ceph# systemctl restart ceph-mon.target

root@ceph-node3:/etc/ceph# systemctl restart ceph-osd.target

問題9, 在fstab中添加rdb device的mount entry， 導致系統不能自動啟動，需要每次執行

rbd map rbd/rbd_test_image --id admin --keyring /etc/ceph/ceph.client.admin.keyring

這個問題需要進一步trouble shooting

問題10， Failed to start Ceph object storage daemon 系統啟動時遭遇這個failure


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