这篇文章给大家分享的是有关ceph admin socket怎么用的内容。小编觉得挺实用的,因此分享给大家做个参考,一起跟随小编过来看看吧。
利用ceph admin socket可以获得ceph的在线参数,对于验证与调试很有帮助。
$ ceph --admin-daemon /path/to/your/ceph/socket
[root@osd2 ~]# ceph --admin-daemon /var/run/ceph/ceph-osd.4.asok help
{ "config diff": "dump diff of current config and default config",
"config get": "config get <field>: get the config value",
"config set": "config set <field> <val> [<val> ...]: set a config variable",
"config show": "dump current config settings",
"dump_blacklist": "dump blacklisted clients and times",
"dump_historic_ops": "show slowest recent ops",
"dump_op_pq_state": "dump op priority queue state",
"dump_ops_in_flight": "show the ops currently in flight",
"dump_reservations": "show recovery reservations",
"dump_watchers": "show clients which have active watches, and on which objects",
"flush_journal": "flush the journal to permanent store",
"get_command_descriptions": "list available commands",
"getomap": "output entire object map",
"git_version": "get git sha1",
"help": "list available commands",
"injectdataerr": "inject data error into omap",
"injectmdataerr": "inject metadata error",
"log dump": "dump recent log entries to log file",
"log flush": "flush log entries to log file",
"log reopen": "reopen log file",
"objecter_requests": "show in-progress osd requests",
"perf dump": "dump perfcounters value",
"perf schema": "dump perfcounters schema",
"rmomapkey": "remove omap key",
"setomapheader": "set omap header",
"setomapval": "set omap key",
"status": "high-level status of OSD",
"truncobj": "truncate object to length",
"version": "get ceph version"}
获取journal相关的参数设置:
[root@osd2 ~]# ceph --admin-daemon /var/run/ceph/ceph-mon.osd2.asok config show | grep journal
"debug_journaler": "0\/5",
"debug_journal": "1\/3",
"journaler_allow_split_entries": "true",
"journaler_write_head_interval": "15",
"journaler_prefetch_periods": "10",
"journaler_prezero_periods": "5",
"journaler_batch_interval": "0.001",
"journaler_batch_max": "0",
"mds_kill_journal_at": "0",
"mds_kill_journal_expire_at": "0",
"mds_kill_journal_replay_at": "0",
"mds_journal_format": "1",
"osd_journal": "\/var\/lib\/ceph\/osd\/ceph-osd2\/journal",
"osd_journal_size": "5120",
"filestore_fsync_flushes_journal_data": "false",
"filestore_journal_parallel": "false",
"filestore_journal_writeahead": "false",
"filestore_journal_trailing": "false",
"journal_dio": "true",
"journal_aio": "true",
"journal_force_aio": "false",
"journal_max_corrupt_search": "10485760",
"journal_block_align": "true",
"journal_write_header_frequency": "0",
"journal_max_write_bytes": "10485760",
"journal_max_write_entries": "100",
"journal_queue_max_ops": "300",
"journal_queue_max_bytes": "33554432",
"journal_align_min_size": "65536",
"journal_replay_from": "0",
"journal_zero_on_create": "false",
"journal_ignore_corruption": "false",
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