Hi :
A server was just rebooted and the osd cant boot .The log is the following.
-3> 2020-01-19 17:39:25.904673 7f5b8e5e9d80 -1
bluestore(/var/lib/ceph/osd/ceph-44) _verify_csum bad crc32c/0x1000
checksum at blob offset 0x0, got 0xd2acc81f, expected 0x62cf539d,
device location [0xaee7c0000~1000], logical extent 0x0~1000, object
#-1:1406dc50:::osdmap.7390:0#
-2> 2020-01-19 17:39:25.904758 7f5b8e5e9d80 -1 osd.44 0 failed to
load OSD map for epoch 7390, got 0 bytes
-1> 2020-01-19 17:39:25.904788 7f5b8e5e9d80 -1 osd.44 7396
load_pgs: have pgid 9.58 at epoch 7390, but missing map. Crashing.
0> 2020-01-19 17:39:25.909760 7f5b8e5e9d80 -1
/home/zhaowei/release/rpmbuild/BUILD/ceph/src/osd/OSD.cc: In function
'void OSD::load_pgs()' thread 7f5b8e5e9d80 time 2020-01-19
17:39:25.904801
/home/zhaowei/release/rpmbuild/BUILD/ceph/src/osd/OSD.cc: 4099: FAILED
assert(0 == "Missing map in load_pgs")
so I tried to use ceph-objectstore-tool to look if I can find some clue
dump meta info
["meta",{"oid":"osdmap.7387","key":"","snapid":0,"hash":171666792,"max":0,"pool":-1,"namespace":"","max":0}]
["meta",{"oid":"osdmap.7388","key":"","snapid":0,"hash":171663928,"max":0,"pool":-1,"namespace":"","max":0}]
["meta",{"oid":"osdmap.7389","key":"","snapid":0,"hash":171664328,"max":0,"pool":-1,"namespace":"","max":0}]
["meta",{"oid":"osdmap.7390","key":"","snapid":0,"hash":171663400,"max":0,"pool":-1,"namespace":"","max":0}]
["meta",{"oid":"osdmap.7391","key":"","snapid":0,"hash":171663864,"max":0,"pool":-1,"namespace":"","max":0}]
["meta",{"oid":"osdmap.7392","key":"","snapid":0,"hash":171665032,"max":0,"pool":-1,"namespace":"","max":0}]
["meta",{"oid":"osdmap.7393","key":"","snapid":0,"hash":171664984,"max":0,"pool":-1,"namespace":"","max":0}]
["meta",{"oid":"osdmap.7394","key":"","snapid":0,"hash":171665384,"max":0,"pool":-1,"namespace":"","max":0}]
["meta",{"oid":"osdmap.7395","key":"","snapid":0,"hash":171664568,"max":0,"pool":-1,"namespace":"","max":0}]
["meta",{"oid":"osdmap.7396","key":"","snapid":0,"hash":171664456,"max":0,"pool":-1,"namespace":"","max":0}]
trying to get osdmap.7396 , and it is ok. But since the epoch in
superblock is 7390 , it is failed. I don't know what can cause this
issue? If the osdmap.7396 have been writen to disk successfully, so
why the older map was failed. The ceph version is 12.2.4。
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