Bug #65086: rados: replicas do not initialize their mlcod value upon activation, replica reads are unavailable until the pg has seen at least one write - RADOS - Ceph

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Bug #65086

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rados: replicas do not initialize their mlcod value upon activation, replica reads are unavailable until the pg has seen at least one write

Added by Samuel Just about 1 month ago. Updated about 1 month ago.

Status:

New

Priority:

Normal

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Backport:

Regression:

Severity:

3 - minor

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Affected Versions:

ceph-qa-suite:

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Crash signature (v1):

Crash signature (v2):

Description

  MDS=0 MGR=1 OSD=3 MON=1 ../src/vstart.sh --without-dashboard -X --redirect-output --debug -n --no-restart --osds-per-host 1
  ./bin/ceph osd primary-affinity 0 0
  ./bin/ceph osd primary-affinity 1 0
  ./bin/ceph osd pool create rbd 64 64
  ./bin/ceph osd pool set rbd size 3
  ./bin/rbd create rbd/image --size 4G
  ./bin/rbd bench --io-type write --io-pattern rand --image rbd/image --io-threads 16 --io-total 250M
  ./bin/ceph osd down 0
  ./bin/rbd bench --io-type read --io-pattern rand --image rbd/image --io-threads 16 --io-total=100M --crush_location "host=$(hostname)-0" --rados_replica_read_policy=localize

All reads will be bounced to the primary after osd.0 immediately comes back up.

Related issues 1 (1 open — 0 closed)