Hello, we have observed that there are null characters written into the open files when hard rebooting a VM. Is tis a known issue? Our VM is using ceph (0.94.10) storage. we have a script like this: while sleep 1; do date >> somefile ; done if we hard reset the VM while the above line is running we end up with NULL characters in the file : 00000000 54 68 75 20 41 70 72 20 20 36 20 31 34 3a 33 37 |Thu Apr 6 14:37| 00000010 3a 33 33 20 43 45 53 54 20 32 30 31 37 0a 54 68 |:33 CEST 2017.Th| 00000020 75 20 41 70 72 20 20 36 20 31 34 3a 33 37 3a 33 |u Apr 6 14:37:3| 00000030 34 20 43 45 53 54 20 32 30 31 37 0a 54 68 75 20 |4 CEST 2017.Thu | 00000040 41 70 72 20 20 36 20 31 34 3a 33 37 3a 33 35 20 |Apr 6 14:37:35 | 00000050 43 45 53 54 20 32 30 31 37 0a 54 68 75 20 41 70 |CEST 2017.Thu Ap| 00000060 72 20 20 36 20 31 34 3a 33 37 3a 33 36 20 43 45 |r 6 14:37:36 CE| 00000070 53 54 20 32 30 31 37 0a 54 68 75 20 41 70 72 20 |ST 2017.Thu Apr | 00000080 20 36 20 31 34 3a 33 37 3a 33 39 20 43 45 53 54 | 6 14:37:39 CEST| 00000090 20 32 30 31 37 0a 54 68 75 20 41 70 72 20 20 36 | 2017.Thu Apr 6| 000000a0 20 31 34 3a 33 37 3a 34 30 20 43 45 53 54 20 32 | 14:37:40 CEST 2| 000000b0 30 31 37 0a 54 68 75 20 41 70 72 20 20 36 20 31 |017.Thu Apr 6 1| 000000c0 34 3a 33 37 3a 34 31 20 43 45 53 54 20 32 30 31 |4:37:41 CEST 201| 000000d0 37 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |7...............| 000000e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| We've observed the same in the syslog file also. Any thoughts about it? kind regards, Laszlo _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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