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CEPHFS-TOP(8) Ceph CEPHFS-TOP(8)

NAME

cephfs-top - Ceph Filesystem Top Utility

SYNOPSIS

cephfs-top [flags]

DESCRIPTION

cephfs-top provides top(1) like functionality for Ceph Filesystem. Various client metrics are displayed and updated in realtime.

Ceph Metadata Servers periodically send client metrics to Ceph Manager. Stats plugin in Ceph Manager provides an interface to fetch these metrics.

OPTIONS

Cluster: Ceph cluster to connect. Defaults to ceph.

Id: Client used to connect to Ceph cluster. Defaults to fstop.

Perform a selftest. This mode performs a sanity check of stats module.

Path to cluster configuration file

Refresh interval in seconds (default: 1)

Dump the metrics to stdout

Dump the metrics of the given filesystem to stdout

DESCRIPTIONS OF FIELDS

cap hit rate

dentry lease rate

number of opened files

number of pinned caps

number of opened inodes

total size of read IOs

total size of write IOs

average size of read IOs

average size of write IOs

speed of read IOs compared with the last refresh

speed of write IOs compared with the last refresh

average read latency

standard deviation (variance) for read latency

average write latency

standard deviation (variance) for write latency

average metadata latency

standard deviation (variance) for metadata latency

AVAILABILITY

cephfs-top is part of Ceph, a massively scalable, open-source, distributed storage system. Please refer to the Ceph documentation at http://ceph.com/ for more information.

SEE ALSO

ceph(8), ceph-mds(8)

COPYRIGHT

2010-2024, Inktank Storage, Inc. and contributors. Licensed under Creative Commons Attribution Share Alike 3.0 (CC-BY-SA-3.0)

April 10, 2024 dev