ceph_ec_profile: added support for define failure domain #7467
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For a large EC deployments, for example EC 8+3: * we need 12 racks * we have 10 hosts in rack with 60 OSD's per host * definitely need a failure domain `rack` The `crush-failure-domain=rack` in profile cmd will create a CRUSH rule that ensures no two chunks are stored in the same rack. Signed-off-by: Konstantin Shalygin <[email protected]>
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On hardware checks: changed: [host1.staging.example.com] => (item=Create EC profile: erasure82) => {
"ansible_loop_var": "item",
"changed": true,
"cmd": [
"ceph",
"-n",
"client.admin",
"-k",
"/etc/ceph/ceph.client.admin.keyring",
"--cluster",
"ceph",
"osd",
"erasure-code-profile",
"set",
"erasure82",
"k=8",
"m=2",
"crush-failure-domain=rack",
"crush-device-class=ssd"
],
"delta": "0:00:01.103060",
"diff": {
"after": "",
"before": ""
},
"end": "2023-11-30 13:17:48.192379",
"invocation": {
"module_args": {
"cluster": "ceph",
"crush_device_class": "ssd",
"crush_failure_domain": "rack",
"k": "8",
"m": "2",
"name": "erasure82",
"state": "present",
"stripe_unit": null
}
},
"item": {
"crush_device_class": "ssd",
"crush_failure_domain": "rack",
"k": 8,
"m": 2,
"name": "erasure82"
},
"rc": 0,
"start": "2023-11-30 13:17:47.089319",
"stderr": "",
"stderr_lines": [],
"stdout": "",
"stdout_lines": []
} |
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jenkins test centos-non_container-update |
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Closing in favor of #7499 |
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For a large EC deployments, for example EC 8+3:
rackThe
crush-failure-domain=rackin profile cmd will create a CRUSH rule that ensures no two chunks are stored in the same rack.https://docs.ceph.com/en/latest/rados/operations/erasure-code/