Why does RabbitMQ keep breaking from a corrupt persister log file?

ref: http://stackoverflow.com/questions/8371659/why-does-rabbitmq-keep-breaking-from-a-corrupt-persister-log-file

/var/log/rabbitmq/startup_log

Starting all nodes...

Starting node rabbit@ubuntu...

+---+ +---+

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| +---+ +-------+

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| RabbitMQ +---+ |

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| v1.7.2 +---+ |

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+-------------------+

AMQP 8-0

Copyright (C) 2007-2010 LShift Ltd., Cohesive Financial Technologies LLC., and Rabbit Technologies Ltd.

Licensed under the MPL. See http://www.rabbitmq.com/

node : rabbit@ubuntu

app descriptor: /usr/lib/rabbitmq/lib/rabbitmq_server-1.7.2/sbin/../ebin/rabbit.app

home dir : /var/lib/rabbitmq

cookie hash : VXmIpXwD/hkaDDQ+FkVMJA==

log : /var/log/rabbitmq/rabbit.log

sasl log : /var/log/rabbitmq/rabbit-sasl.log

database dir : /var/lib/rabbitmq/mnesia/rabbit

starting internal event notification system ...done

starting logging server ...done

starting database ...done

-- kernel ready

starting alarm handler ...done

starting queue supervisor ...done

starting node monitor ...done

starting cluster router ...done

-- core initialized

starting empty DB check ...done

starting codec correctness check ...done

starting exchange recovery ...done

starting queue recovery ...done

starting persister ...BOOT ERROR: FAILED

Reason: {{badmatch,

{error,

{{{case_clause,

{error,

{not_a_log_file,

"/var/lib/rabbitmq/mnesia/rabbit/rabbit_persister.LOG"}}},

[{rabbit_persister,init,1},

{gen_server,init_it,6},

{proc_lib,init_p_do_apply,3}]},

{child,undefined,rabbit_persister,

{rabbit_persister,start_link,[]},

transient,100,worker,

[rabbit_persister]}}}},

[{rabbit_sup,start_child,2},

{rabbit,'-run_boot_step/1-lc$^1/1-1-',1},

{rabbit,run_boot_step,1},

{rabbit,'-start/2-lc$^0/1-0-',1},

{rabbit,start,2},

{application_master,start_it_old,4}]}

{"init terminating in do_boot",{{nocatch,{error,{cannot_start_application,rabbit,{bad_return,{{rabbit,start,[normal,[]]},{'EXIT',{rabbit,failure_during_boot}}}}}}},[{init,start_it,1},{init,start_em,1}]}}