Error log contents when the config files are not writable are not helpful
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Key: COUCHDB-966
URL: https://issues.apache.org/jira/browse/COUCHDB-966
Project: CouchDB
Issue Type: Bug
Components: Database Core
Affects Versions: 1.0
Environment: Any
Reporter: MC Brown
Priority: Minor
If you try to update the configuration settings, either through the API or
Futon, but the underlying configuration files are not writable by the CouchDB
process, the API response is '500', and the Futon response is just to appear to
have frozen.
Checking the log, you get this output:
[Thu, 25 Nov 2010 12:51:45 GMT] [error] [<0.31700.81>] ** Generic server
couch_config terminating
** Last message in was {set,"uuids","algorithm","random",true}
** When Server state == {config,[{<0.31726.81>,#Fun<couch_config.2.4103357>},
{<0.31719.81>,#Fun<couch_config.3.18912695>},
{<0.31719.81>,#Fun<couch_config.3.18912695>},
{<0.31717.81>,#Fun<couch_config.2.4103357>},
{<0.31715.81>,#Fun<couch_config.2.4103357>},
{<0.31714.81>,#Fun<couch_config.2.4103357>},
{<0.31714.81>,#Fun<couch_config.2.4103357>},
{<0.31712.81>,#Fun<couch_config.3.18912695>},
{<0.31711.81>,#Fun<couch_config.2.4103357>},
{<0.31709.81>,#Fun<couch_config.2.4103357>},
{false,#Fun<couch_server.3.123842465>},
{<0.31706.81>,#Fun<couch_config.3.18912695>},
{<0.31706.81>,#Fun<couch_config.2.4103357>},
{<0.6.0>,#Fun<couch_config.2.4103357>}],
"/etc/couchdb/local.ini"}
** Reason for termination ==
** {{badmatch,{error,eacces}},
[{couch_config_writer,save_to_file,2},
{couch_config,handle_call,3},
{gen_server,handle_msg,5},
{proc_lib,init_p_do_apply,3}]}
[Thu, 25 Nov 2010 12:51:45 GMT] [error] [<0.31700.81>] {error_report,<0.32.0>,
{<0.31700.81>,crash_report,
[[{initial_call,{couch_config,init,['Argument__1']}},
{pid,<0.31700.81>},
{registered_name,couch_config},
{error_info,{exit,{{badmatch,{error,eacces}},
[{couch_config_writer,save_to_file,2},
{couch_config,handle_call,3},
{gen_server,handle_msg,5},
{proc_lib,init_p_do_apply,3}]},
[{gen_server,terminate,6},
{proc_lib,init_p_do_apply,3}]}},
{ancestors,[couch_server_sup,<0.33.0>]},
{messages,[]},
{links,[<0.79.0>]},
{dictionary,[]},
{trap_exit,false},
{status,running},
{heap_size,6765},
{stack_size,24},
{reductions,52930}],
[]]}}
[Thu, 25 Nov 2010 12:51:45 GMT] [error] [<0.79.0>] {error_report,<0.32.0>,
{<0.79.0>,supervisor_report,
[{supervisor,{local,couch_server_sup}},
{errorContext,child_terminated},
{reason,
{{badmatch,{error,eacces}},
[{couch_config_writer,save_to_file,2},
{couch_config,handle_call,3},
{gen_server,handle_msg,5},
{proc_lib,init_p_do_apply,3}]}},
{offender,
[{pid,<0.31700.81>},
{name,couch_config},
{mfa,
{couch_server_sup,couch_config_start_link_wrapper,
[["/etc/couchdb/default.ini","/etc/couchdb/local.ini",
"/etc/couchdb/default.ini","/etc/couchdb/local.ini"],
<0.78.0>]}},
{restart_type,permanent},
{shutdown,brutal_kill},
{child_type,worker}]}]}}
[Thu, 25 Nov 2010 12:51:45 GMT] [error] [<0.31718.81>] Uncaught error in HTTP
request: {exit,
{{{badmatch,{error,eacces}},
[{couch_config_writer,save_to_file,2},
{couch_config,handle_call,3},
{gen_server,handle_msg,5},
{proc_lib,init_p_do_apply,3}]},
{gen_server,call,
[couch_config,
{set,"uuids","algorithm","random",
true}]}}}
None of this nicely points out that it is simply a file permission issue.
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