Rabbitmq 3.6.5启动失败了.怎么解决？
BOOT FAILED
===========
Error description: "Found lock file at ~s.\n Either previous upgrade is in progress or has failed.\n Database
backup path: ~s"
Log files (may contain more information):
/var/log/rabbitmq/rabbit@vm-10-111-29-211.log
/var/log/rabbitmq/rabbit@vm-10-111-29-211-sasl.log
Stack trace: [{rabbit_upgrade,ensure_backup_taken,
["/var/lib/rabbitmq/mnesia/rabbit@vm-10-111-29-211/schema_upgrade_lock", "/var/lib/rabbitmq/mnesia/rabbit@vm-10-111-29-211-upgrade-backup"],
[{file,"src/rabbit_upgrade.erl"},{line,101}]},
{rabbit_upgrade,maybe_upgrade_mnesia,0,
[{file,"src/rabbit_upgrade.erl"},{line,144}]},
{rabbit,'-boot/0-fun-0-',0,[{file,"src/rabbit.erl"},{line,271}]},
{rabbit,start_it,1,[{file,"src/rabbit.erl"},{line,403}]},
{init,start_it,1,[]},
{init,start_em,1,[]}]
{"init terminating in do_boot","Found lock file at ~s.\n
Either previous upgrade is in progress or has failed.\n
Database backup path: ~s"}
Crash dump was written to: erl_crash.dump init terminating in do_boot
(Found lock file at …