Feature #24285: mgr: add module which displays current usage of file system (`fs top`) - fs - Ceph

Feature #24285

mgr: add module which displays current usage of file system (`fs top`)

Added by Patrick Donnelly over 2 years ago. Updated 7 months ago.

Status:

Fix Under Review

Priority:

High

Assignee:

Venky Shankar

Category:

Performance/Resource Usage

Target version:

Ceph - v16.0.0

% Done:

Source:

Development

Tags:

Backport:

Reviewed:

Affected Versions:

Component(FS):

Client, MDS, MDSMonitor, kceph, tools

Labels (FS):

task(intern), task(medium)

Pull request ID:

29951

Description

It would ideally provide a list of sessions doing I/O, what kind of I/O, bandwidth of reads/writes, etc. Also the same information in aggregate form. The other metrics of general interest: caps outstanding, MDS cache size (broken down by type?), cache utilization/hits, client cache utilization (#26996), etc.

Related issues

Related to fs - Bug #24004: mds: curate priority of perf counters sent to mgr	Resolved	05/03/2018
Related to fs - Feature #26996: cephfs: get capability cache hits by clients to provide introspection on effectiveness of client caching	Resolved
Related to fs - Feature #36253: cephfs: clients should send usage metadata to MDSs for administration/monitoring	Resolved
Related to fs - Feature #41824: mds: aggregate subtree authorities for display in `fs top`	New
Related to Linux kernel client - Feature #43215: kclient: send usage metrics to MDS	Resolved
Related to fs - Feature #43423: mds: collect and show the dentry lease metric	Fix Under Review
Duplicated by fs - Bug #36252: cephfs: `ceph fs top` command	Duplicate

History

#1 Updated by Patrick Donnelly over 2 years ago

Subject changed from mgr: add module which displays current usage of file system to mgr: add module which displays current usage of file system (`fs top`)
Category set to Performance/Resource Usage
Component(FS) MDS, MDSMonitor, tools added