专家，
我的couchDB安装遇到了一个令人惊讶的问题：从一个时刻到另一个时刻，没有任何请求可能，并且couchDB不再运行。
查看错误日志显示以下堆栈跟踪（这些是第一个，非常类似的跟随）。提到的db-files确实存在于指定的目录中，并具有正确的访问权限（couchdb：couchdb，640）。
系统是FreeBSD 10.1-RELEASE-p16，couchdb 1.6.1
[Thu, 20 Aug 2015 13:37:29 GMT] [error] [<0.28818.72>] Could not open file /var/db/couchdb/db1/abc.couch: no such file or directory
[Thu, 20 Aug 2015 13:37:29 GMT] [error] [<0.25245.72>] Could not open file /var/db/couchdb/db1/abc.couch: no such file or directory
[Thu, 20 Aug 2015 13:50:45 GMT] [error] [<0.13142.73>] Could not open file /var/db/couchdb/db1/def.couch: no such file or directory
[Thu, 20 Aug 2015 13:52:29 GMT] [error] [<0.15770.73>] Could not open file /var/db/couchdb/db1/abc.couch: no such file or directory
[Thu, 20 Aug 2015 13:52:29 GMT] [error] [<0.17891.73>] Could not open file /var/db/couchdb/db1/abc.couch: no such file or directory
[Thu, 20 Aug 2015 13:59:47 GMT] [error] [<0.23972.73>] {error_report,<0.31.0>,
{<0.23972.73>,crash_report,
[[{initial_call,{couch_file,init,['Argument__1']}},
{pid,<0.23972.73>},
{registered_name,[]},
{error_info,
{exit,
{{badmatch,{error,eacces}},
[{couch_file,init,1,
[{file,"couch_file.erl"},{line,314}]},
{gen_server,init_it,6,
[{file,"gen_server.erl"},{line,328}]},
{proc_lib,init_p_do_apply,3,
[{file,"proc_lib.erl"},{line,239}]}]},
[{gen_server,init_it,6,
[{file,"gen_server.erl"},{line,352}]},
{proc_lib,init_p_do_apply,3,
[{file,"proc_lib.erl"},{line,239}]}]}},
{ancestors,[<0.25603.73>]},
{messages,[]},
{links,[#Port<0.1119512>,<0.25603.73>]},
{dictionary,[]},
{trap_exit,true},
{status,running},
{heap_size,376},
{stack_size,27},
{reductions,564}],
[{neighbour,
[{pid,<0.25603.73>},
{registered_name,[]},
{initial_call,{erlang,apply,2}},
{current_function,{gen,do_call,4}},
{ancestors,[]},
{messages,[]},
{links,[<0.85.0>,<0.23972.73>]},
{dictionary,[]},
{trap_exit,false},
{status,waiting},
{heap_size,610},
{stack_size,16},
{reductions,61}]}]]}}
[Thu, 20 Aug 2015 13:59:47 GMT] [error] [<0.23088.73>] httpd 500 error response:
{"error":"error","reason":"{{badmatch,{error,eacces}},\n [{couch_file,init,1,[{file,\"couch_file.erl\"},{line,314}]},\n {gen_server,init_it,6,[{file,\"gen_server.erl\"},{line,328}]},\n {proc_lib,init_p_do_apply,3,[{file,\"proc_lib.erl\"},{line,239}]}]}"}
[Thu, 20 Aug 2015 13:59:47 GMT] [error] [<0.26398.73>] {error_report,<0.31.0>,
{<0.26398.73>,crash_report,
[[{initial_call,{couch_file,init,['Argument__1']}},
{pid,<0.26398.73>},
{registered_name,[]},
{error_info,
{exit,
{{badmatch,{error,eacces}},
[{couch_file,init,1,
[{file,"couch_file.erl"},{line,314}]},
{gen_server,init_it,6,
[{file,"gen_server.erl"},{line,328}]},
{proc_lib,init_p_do_apply,3,
[{file,"proc_lib.erl"},{line,239}]}]},
[{gen_server,init_it,6,
[{file,"gen_server.erl"},{line,352}]},
{proc_lib,init_p_do_apply,3,
[{file,"proc_lib.erl"},{line,239}]}]}},
{ancestors,[<0.15629.73>]},
{messages,[]},
{links,[#Port<0.1119284>,<0.15629.73>]},
{dictionary,[]},
{trap_exit,true},
{status,running},
{heap_size,610},
{stack_size,27},
{reductions,573}],
[{neighbour,
[{pid,<0.15629.73>},
{registered_name,[]},
{initial_call,{erlang,apply,2}},
{current_function,{proc_lib,sync_wait,2}},
{ancestors,[]},
{messages,
[{ack,<0.26398.73>,
{error,
{{badmatch,{error,eacces}},
[{couch_file,init,1,
[{file,"couch_file.erl"},{line,314}]},
{gen_server,init_it,6,
[{file,"gen_server.erl"},{line,328}]},
{proc_lib,init_p_do_apply,3,
[{file,"proc_lib.erl"},{line,239}]}]}}}]},
{links,[<0.85.0>,<0.26398.73>]},
{dictionary,[]},
{trap_exit,false},
{status,runnable},
{heap_size,233},
{stack_size,20},
{reductions,28}]}]]}}
[Thu, 20 Aug 2015 13:59:47 GMT] [error] [<0.85.0>] ** Generic server couch_server terminating
** Last message in was {'EXIT',<0.25603.73>,
{{badmatch,{error,eacces}},
[{couch_file,init,1,
[{file,"couch_file.erl"},{line,314}]},
{gen_server,init_it,6,
[{file,"gen_server.erl"},{line,328}]},
{proc_lib,init_p_do_apply,3,
[{file,"proc_lib.erl"},{line,239}]}]}}
** When Server state == {server,"/var/db/couchdb",
{re_pattern,0,0,0,
<<69,82,67,80,140,0,0,0,16,0,0,0,1,0,0,0,255,
255,255,255,255,255,255,255,0,0,0,0,0,0,0,0,
0,0,64,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,125,0,72,25,106,0,0,0,
0,0,0,0,0,0,0,0,0,254,255,255,7,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,106,0,0,0,0,16,171,255,
3,0,0,0,128,254,255,255,7,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,98,27,114,0,72,0>>},
100,99,"Wed, 19 Aug 2015 12:57:47 GMT"}
** Reason for termination ==
** {{case_clause,[]},
[{couch_server,handle_info,2,[{file,"couch_server.erl"},{line,435}]},
{gen_server,try_dispatch,4,[{file,"gen_server.erl"},{line,615}]},
{gen_server,handle_msg,5,[{file,"gen_server.erl"},{line,681}]},
{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,239}]}]}
因为我对erlang没有任何线索，所以我不明白一句话 - 这些错误意味着什么，可能产生什么呢？
非常感谢， 塞巴斯蒂安
答案 0 :(得分：1)
唯一相关的错误是{badmatch,{error,eacces}，它表明发生了POSIX EACCES错误。输出的其余部分是显示＆＃34;状态＆＃34;的二郎方式。在崩溃周围，并行运行时需要的东西。
根据erlang文档（http://www.erlang.org/doc/man/file.html），错误eacces也可能意味着：＆＃34;缺少读取文件或搜索其中一个父目录的权限。＆＃34 ;
您是否还检查了正确的父目录权限？
有没有改变文件系统的东西？
/var/db是NFS挂载还是什么？
答案 1 :(得分：1)
该错误告诉您无权访问该文件。可能是文件不存在，或者您无权访问具有couchdb使用的用户标识的某些子目录。
您可以尝试使用su然后touch数据库文件切换到couchdb用户，以检查您到目前为止是否真的有权访问该文件。