CEPH-SYN - Online Linux Manual PageSection : 8
Updated : Mar 31, 2021
Source : dev
Note : Ceph
NAMEceph-syn − ceph synthetic workload generator
SYNOPSISceph−syn [ −m monaddr:port ] −−syn command ...
DESCRIPTIONceph−syn is a simple synthetic workload generator for the Ceph distributed file system. It uses the userspace client library to generate simple workloads against a currently running file system. The file system need not be mounted via ceph−fuse(8) or the kernel client. One or more −−syn command arguments specify the particular workload, as documented below.
OPTIONS −d Detach from console and daemonize after startup. −c ceph.conf, −−conf=ceph.conf Use ceph.conf configuration file instead of the default /etc/ceph/ceph.conf to determine monitor addresses during startup. −m monaddress[:port] Connect to specified monitor (instead of looking through ceph.conf). −−num_client num Run num different clients, each in a separate thread. −−syn workloadspec Run the given workload. May be specified as many times as needed. Workloads will normally run sequentially.
WORKLOADSEach workload should be preceded by −−syn on the command line. This is not a complete list. mknap path snapname Create a snapshot called snapname on path. rmsnap path snapname Delete snapshot called snapname on path. rmfile path Delete/unlink path. writefile sizeinmb blocksize Create a file, named after our client id, that is sizeinmb MB by writing blocksize chunks. readfile sizeinmb blocksize Read file, named after our client id, that is sizeinmb MB by writing blocksize chunks. rw sizeinmb blocksize Write file, then read it back, as above. makedirs numsubdirs numfiles depth Create a hierarchy of directories that is depth levels deep. Give each directory numsubdirs subdirectories and numfiles files. walk Recursively walk the file system (like find).
AVAILABILITYceph−syn is part of Ceph, a massively scalable, open−source, distributed storage system. Please refer to the Ceph documentation at http://ceph.com/docs for more information.
SEE ALSOceph(8), ceph−fuse(8)
COPYRIGHT2010-2021, Inktank Storage, Inc. and contributors. Licensed under Creative Commons Attribution Share Alike 3.0 (CC-BY-SA-3.0) 0
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