Add ceph osd_df to metricbeat #5606
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| //// | ||
| This file is generated! See scripts/docs_collector.py | ||
| //// | ||
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| [[metricbeat-metricset-ceph-osd_df]] | ||
| === Ceph osd_df metricset | ||
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| experimental[] | ||
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| include::../../../module/ceph/osd_df/_meta/docs.asciidoc[] | ||
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| ==== Fields | ||
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| For a description of each field in the metricset, see the | ||
| <<exported-fields-ceph,exported fields>> section. | ||
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| Here is an example document generated by this metricset: | ||
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| [source,json] | ||
| ---- | ||
| include::../../../module/ceph/osd_df/_meta/data.json[] | ||
| ---- |
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| { | ||
| "output": { | ||
| "nodes": [ | ||
| { | ||
| "crush_weight": 0.048691, | ||
| "depth": 2, | ||
| "device_class": "hdd", | ||
| "id": 0, | ||
| "kb": 52325356, | ||
| "kb_avail": 51245860, | ||
| "kb_used": 1079496, | ||
| "name": "osd.0", | ||
| "pgs": 0, | ||
| "pool_weights": {}, | ||
| "reweight": 1.0, | ||
| "type": "osd", | ||
| "type_id": 0, | ||
| "utilization": 2.063046, | ||
| "var": 1.0 | ||
| }, | ||
| { | ||
| "crush_weight": 0.048691, | ||
| "depth": 2, | ||
| "device_class": "hdd", | ||
| "id": 1, | ||
| "kb": 52325356, | ||
| "kb_avail": 51245860, | ||
| "kb_used": 1079496, | ||
| "name": "osd.1", | ||
| "pgs": 0, | ||
| "pool_weights": {}, | ||
| "reweight": 1.0, | ||
| "type": "osd", | ||
| "type_id": 0, | ||
| "utilization": 2.063046, | ||
| "var": 1.0 | ||
| } | ||
| ], | ||
| "stray": [], | ||
| "summary": { | ||
| "average_utilization": 2.063046, | ||
| "dev": 0.0, | ||
| "max_var": 1.0, | ||
| "min_var": 1.0, | ||
| "total_kb": 104650712, | ||
| "total_kb_avail": 102491720, | ||
| "total_kb_used": 2158992 | ||
| } | ||
| }, | ||
| "status": "OK" | ||
| } |
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| { | ||
| "@timestamp": "2017-11-16T02:30:32.779Z", | ||
| "@metadata": { | ||
| "beat": "metricbeat", | ||
| "type": "doc", | ||
| "version": "7.0.0-alpha1" | ||
| }, | ||
| "ceph": { | ||
| "osd_df": { | ||
| "device_class": "hdd", | ||
| "name": "osd.1", | ||
| "total_byte": 52325356, | ||
| "used_byte": 1079496, | ||
| "avail_byte": 51245860, | ||
| "pg_num": 0, | ||
| "used_pct": 0.020630456866839092, | ||
| "id": 1 | ||
| } | ||
| }, | ||
| "metricset": { | ||
| "module": "ceph", | ||
| "name": "osd_df", | ||
| "host": "192.168.56.131:5000", | ||
| "rtt": 5452 | ||
| }, | ||
| "beat": { | ||
| "name": "centos7gui", | ||
| "hostname": "centos7gui", | ||
| "version": "7.0.0-alpha1" | ||
| } | ||
| } |
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| This is the `osd_df` metricset of the Ceph module. |
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| - name: osd_df | ||
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There was a problem hiding this comment. Left the comments in the fields.asciidoc, but they should obviously go here. |
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| type: group | ||
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There was a problem hiding this comment. It's a new feature I just added recently. Could you add |
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| release: experimental | ||
| description: > | ||
| ceph osd disk usage information | ||
| fields: | ||
| - name: id | ||
| type: long | ||
| description: > | ||
| osd node id | ||
| - name: name | ||
| type: text | ||
| description: > | ||
| osd node name | ||
| - name: device_class | ||
| type: keyword | ||
| description: > | ||
| osd node type, illegal type include hdd, ssd etc. | ||
| - name: total.byte | ||
| type: long | ||
| format: bytes | ||
| description: > | ||
| osd disk total volume | ||
| - name: used.byte | ||
| type: long | ||
| format: bytes | ||
| description: > | ||
| osd disk usage volume | ||
| - name: available.bytes | ||
| type: long | ||
| format: bytes | ||
| description: > | ||
| osd disk available volume | ||
| - name: pg_num | ||
| type: long | ||
| description: > | ||
| shows how many pg located on this osd | ||
| - name: used.pct | ||
| type: scaled_float | ||
| format: percent | ||
| description: > | ||
| osd disk usage percentage | ||
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| package osd_df | ||
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There was a problem hiding this comment. don't use an underscore in package name |
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| import ( | ||
| "encoding/json" | ||
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| "github.com/elastic/beats/libbeat/common" | ||
| "github.com/elastic/beats/libbeat/logp" | ||
| ) | ||
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| type Node struct { | ||
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There was a problem hiding this comment. exported type Node should have comment or be unexported |
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| ID int64 `json:"id"` | ||
| Name string `json:"name"` | ||
| Used int64 `json:"kb_used"` | ||
| Available int64 `json:"kb_avail"` | ||
| Total int64 `json:"kb"` | ||
| PgNum int64 `json:"pgs"` | ||
| DeviceClass string `json:"device_class"` | ||
| } | ||
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| type Output struct { | ||
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There was a problem hiding this comment. exported type Output should have comment or be unexported |
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| Nodes []Node `json:"nodes"` | ||
| } | ||
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| type OsdDfRequest struct { | ||
|
There was a problem hiding this comment. exported type OsdDfRequest should have comment or be unexported |
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| Status string `json:"status"` | ||
| Output Output `json:"output"` | ||
| } | ||
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| func eventsMapping(content []byte) ([]common.MapStr, error) { | ||
| var d OsdDfRequest | ||
| err := json.Unmarshal(content, &d) | ||
| if err != nil { | ||
| logp.Err("Error: ", err) | ||
| return nil, err | ||
| } | ||
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| nodeList := d.Output.Nodes | ||
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| //osd node list | ||
| events := []common.MapStr{} | ||
| for _, node := range nodeList { | ||
| nodeInfo := common.MapStr{ | ||
| "id": node.ID, | ||
| "name": node.Name, | ||
| "total.byte": node.Total, | ||
| "used.byte": node.Used, | ||
| "available.byte": node.Available, | ||
| "device_class": node.DeviceClass, | ||
| "pg_num": node.PgNum, | ||
| } | ||
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| if 0 != node.Total { | ||
| var usedPct float64 | ||
| usedPct = float64(node.Used) / float64(node.Total) | ||
| nodeInfo["used.pct"] = usedPct | ||
| } | ||
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| events = append(events, nodeInfo) | ||
| } | ||
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| return events, nil | ||
| } | ||
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One thing that popped up in my head is that we have here
dfand we havesystem.filesystemwith similar info. Don't know ifosd_filesystemwould make sense here (even though pretty long).There was a problem hiding this comment.
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Actually the function of osd df in ceph is very similar with *system.filesystem * in linux. It shows osds' weight, reweight, size, used, avai and used pct information. Naming this new metricbet as osd_df is because it's a standard command in Ceph, and I consider that it will be much more familer to ceph users. For more about the command's detials:
http://docs.ceph.com/docs/master/man/8/ceph/
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We had a similar discussion with the system module. Most sysadmins will be used to run the
dfcommand. But someone consuming the data is more looking for information about the filesystem which could be a different person. TBH don't know which one is better. I'm fine moving forward withdf.