Server does not start after error

After unexpected server shutdown(power failure), Couchbase did not started after reboot.
However, if you restart it manually, it works fine.

I found following error from log.

[ns_server:error,2014-10-28T12:14:32.440,ns_1@127.0.0.1:compaction_new_daemon<0.450.0>:compaction_new_daemon:log_compactors_exit:1303]Compactor <0.459.0> exited unexpectedly: {noproc,
{gen_server,call,
[

{'ns_memcached-XQ', 'ns_1@127.0.0.1'}

,
{raw_stats,<<"diskinfo">>,
#Fun<compaction_new_daemon.18.43740339>,
{<<"0">>,<<"0">>}},
180000]}}. Moving to the next bucket.