ceph-monstore-tool -- ceph monstore manipulation tool

Synopsis

ceph-monstore-tool <store path> <cmd> [args|options]

Description

ceph-monstore-tool is used to manipulate MonitorDBStore’s data (monmap, osdmap, etc.) offline. It is similar to ceph-kvstore-tool.

Note:

Ceph-specific options take the format --option-name=VAL DO NOT FORGET THE EQUALS SIGN. (‘=’) for example, dump-keys --debug-rocksdb=0

Command-specific options must be passed after a -- for example, get monmap -- --version 10 --out /tmp/foo

Commands

ceph-monstore-tool uses many commands for debugging purposes:

store-copy <path>: Copy the store to PATH.
get monmap [-- options]: Get monmap (version VER if specified) (default: last committed).
get osdmap [-- options]: Get osdmap (version VER if specified) (default: last committed).
get mdsmap [-- options]: Get mdsmap (version VER if specified) (default: last committed).
get mgr [-- options]: Get mgrmap (version VER if specified) (default: last committed).
get crushmap [-- options]: Get crushmap (version VER if specified) (default: last committed).
get-key <prefix> <key> [-- options]: Get key to FILE (default: stdout).
remove-key <prefix> <key> [-- options]: Remove key.
dump-keys: Dump store keys to FILE (default: stdout).
dump-paxos [-- options]: Dump Paxos transactions (-- -- help for more info).
dump-trace FILE [-- options]: Dump contents of trace file FILE (-- --help for more info).
replay-trace FILE [-- options]: Replay trace from FILE (-- --help for more info).
random-gen [-- options]: Add randomly generated ops to the store (-- --help for more info).
rewrite-crush [-- options]: Add a rewrite commit to the store
rebuild: Rebuild store.

Availability

ceph-monstore-tool is part of Ceph, a massively scalable, open-source, distributed storage system. See the Ceph documentation at https://docs.ceph.com for more information.