1.问题引出
在Linux操作系统下，安装ceph分布式存储系统，在安装OSD时，执行了一条命令：
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ceph-deploy disk zap osdnode1:/dev/sda3 |
命令执行失败，日志如下：
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[ceph_deploy.cli][INFO ] ceph-deploy options: [ceph_deploy.cli][INFO ] username : None [ceph_deploy.cli][INFO ] verbose : False [ceph_deploy.cli][INFO ] overwrite_conf : False [ceph_deploy.cli][INFO ] subcommand : zap [ceph_deploy.cli][INFO ] quiet : False [ceph_deploy.cli][INFO ] cd_conf : <ceph_deploy.conf.cephdeploy.Conf instance at 0x12be4d0> [ceph_deploy.cli][INFO ] cluster : ceph [ceph_deploy.cli][INFO ] func : <functiondisk at 0x12b6938> [ceph_deploy.cli][INFO ] ceph_conf : None [ceph_deploy.cli][INFO ] default_release : False [ceph_deploy.cli][INFO ] disk : [(‘osdnode1‘,‘/dev/sda3‘, None)] [ceph_deploy.osd][DEBUG ] zapping /dev/sda3 on osdnode1 [osdnode1][DEBUG ] connection detected needforsudo [osdnode1][DEBUG ] connected to host: osdnode1 [osdnode1][DEBUG ] detect platform information from remote host [osdnode1][DEBUG ] detect machine type [osdnode1][DEBUG ] find the location of an executable [ceph_deploy.osd][INFO ] Distro info: CentOS 6.7 Final [osdnode1][DEBUG ] zeroing last few blocks of device [osdnode1][DEBUG ] find the location of an executable [osdnode1][INFO ] Running command: sudo /usr/sbin/ceph-disk zap /dev/sda3 [osdnode1][DEBUG ] CreatingnewGPT entries. [osdnode1][DEBUG ] Warning: The kernel is still using the old partition table. [osdnode1][DEBUG ] Thenewtable will be used at the next reboot. [osdnode1][DEBUG ] GPT data structures destroyed! You may now partition the disk using fdisk or [osdnode1][DEBUG ] other utilities. [osdnode1][DEBUG ] CreatingnewGPT entries. [osdnode1][DEBUG ] Warning: The kernel is still using the old partition table. [osdnode1][DEBUG ] Thenewtable will be used at the next reboot. [osdnode1][DEBUG ] The operation has completed successfully. [osdnode1][WARNING] Traceback (most recent call last): [osdnode1][WARNING] File"/usr/sbin/ceph-disk", line 2994,in<module> [osdnode1][WARNING] main() [osdnode1][WARNING] File"/usr/sbin/ceph-disk", line 2972,inmain [osdnode1][WARNING] args.func(args) [osdnode1][WARNING] File"/usr/sbin/ceph-disk", line 2690,inmain_zap [osdnode1][WARNING] zap(dev) [osdnode1][WARNING] File"/usr/sbin/ceph-disk", line 1071,inzap [osdnode1][WARNING] update_partition(‘-d‘, dev,‘zapped‘) [osdnode1][WARNING] File"/usr/sbin/ceph-disk", line 1033,inupdate_partition [osdnode1][WARNING] dev, [osdnode1][WARNING] File"/usr/sbin/ceph-disk", line 306,incommand [osdnode1][WARNING] **kwargs) [osdnode1][WARNING] File"/usr/lib64/python2.6/subprocess.py", line 642,in__init__ [osdnode1][WARNING] [osdnode1][WARNING] File"/usr/lib64/python2.6/subprocess.py", line 1234,in_execute_child [osdnode1][WARNING] [osdnode1][WARNING] File"/usr/lib64/python2.6/pickle.py", line 1374,inloads [osdnode1][WARNING] [osdnode1][WARNING] File"/usr/lib64/python2.6/pickle.py", line 858,inload [osdnode1][WARNING] [osdnode1][WARNING] File"/usr/lib64/python2.6/pickle.py", line 971,inload_string [osdnode1][WARNING] [osdnode1][WARNING] LookupError: unknown encoding: string-escape [osdnode1][ERROR ] RuntimeError: command returned non-zero exit status: 1 [ceph_deploy][ERROR ] RuntimeError: Failed to execute command: /usr/sbin/ceph-disk zap /dev/sda3 2.实际影响 |
我osdnode1设备无法正常工作,体现在:
相关命令罗列后不会返回结果 执行创建等命令失败
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[[email protected] home]# df -h -bash:/bin/df: Input/outputerror [[email protected] home]# mount /dev/sda3on /typeext4 (rw) proc on/proctypeproc (rw) sysfs on/systypesysfs (rw) devpts on/dev/ptstypedevpts (rw,gid=5,mode=620) tmpfs on/dev/shmtypetmpfs (rw) /dev/sda1on/boottypeext4 (rw) none on/proc/sys/fs/binfmt_misctypebinfmt_misc (rw) mount: warning:/etc/mtabis not writable (e.g.read-only filesystem). It‘s possible that information reported bymount(8) is not up todate. For actual information about systemmountpoints check the/proc/mountsfile. [[email protected] home]# df -h -bash:/bin/df: Input/outputerror |
一直报IO error.
3.解决办法
后通过如下方法修复：命令执行过程中一路yes next就OK.
fsck -t ext4 /dev/sda3
修复成功后
