Feature #43423: mds: collect and show the dentry lease metric - CephFS - Ceph

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Feature #43423

closed

mds: collect and show the dentry lease metric

Added by Xiubo Li over 4 years ago. Updated over 3 years ago.

Status:

Resolved

Priority:

High

Assignee:

Xiubo Li

Category:

Target version:

Ceph - v16.0.0

% Done:

Source:

Development

Tags:

Backport:

Reviewed:

Affected Versions:

Component(FS):

MDS

Labels (FS):

Pull request ID:

32479

Description

Kclient will collect the dentry lease metric and send it to the MDS, currently this hasn't been shown in the perf stats.

Related issues 2 (0 open — 2 closed)

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Updated by Xiubo Li over 4 years ago

Locally the patch is ready, but depend on https://github.com/ceph/ceph/pull/26004, which hasn't been merged yet.

# ./bin/ceph fs perf stats | python -m json.tool
{
    "client_metadata": {
        "client.4273": {
            "IP": "v1:192.168.195.165",
            "hostname": "fedora1",
            "mount_point": "N/A",
            "root": "/" 
        }
    },
    "counters": [
        "cap_hit" 
    ],
    "global_counters": [
        "read_latency",
        "write_latency",
        "metadata_latency",
        "dentry_lease_hit" 
    ],
    "global_metrics": {
        "client.4273": [
            [
                0,
                0
            ],
            [
                0,
                0
            ],
            [
                0,
                0
            ],
            [
                41,
                0
            ]
        ]
    },
    "metrics": {
        "delayed_ranks": [],
        "mds.0": {
            "client.4273": [
                [
                    171,
                    1
                ]
            ]
        }
    }
}