Ceph » RADOS

This breaks grep'ing the osd logs.

Using cat -v we see the binary data:

2019-05-03 05:01:33.365 7fcedc056700 25 osd.1 pg_epoch: 60 pg[2.14( v 60'257 (0'0,60'257] local-lis/les=54/55 n=36 ec=54/19 lis/c 54/54 les/c/f 55/55/0 19/54/19) [1,0] r=0 lpr=54 crt=60'257 lcod 52'255 mlcod 52'255 active+clean+scrubbing+deep+snaptrim trimq=[a~1,d~1,12~1,17~1,1c~1] ps=[2~4,8~1,11~1]] CRC header -ãa¨½zx¨ ^V^TÀ`Ùè1³Â^Táµ<81>Pú3¨øÖ<86>"AZ'b/^^ÿ<9d><82>Q^T^Hæ£Ñv^QÌ0
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From ReplicatedBackend::be_deep_scrub()

      dout(25) << "CRC header " << string(hdrbl.c_str(), hdrbl.length())
               << dendl;