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https://issues.apache.org/jira/browse/COUCHDB-966?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Filipe Manana updated COUCHDB-966:
----------------------------------
Attachment: COUCHDB-966.patch
Here's a patch that returns an explicit error when trying to access a file for
which there's no read and/or write permission:
Your configuration use case:
$ curl -H 'X-Couch-Persist: true' -X PUT
http://localhost:5984/_config/couchdb/delayed_commits -d '"false"'
{"error":"file_permission_error","reason":"/home/fdmanana/git/hub/couchdb/etc/couchdb/local_dev.ini"}
For a database file for which we don't have read permission:
$ curl http://localhost:5984/abc
{"error":"file_permission_error","reason":"/home/fdmanana/git/hub/couchdb/tmp/lib/abc.couch"}
At startup when the user has no access to one of the critical files (log file,
config files, _users database, etc):
Apache CouchDB 1.2.0aac02c7b-git (LogLevel=info) is starting.
=CRASH REPORT==== 6-Jan-2011::12:41:28 ===
crasher:
initial call: couch_event_sup:init/1
pid: <0.80.0>
registered_name: []
exception exit: {file_permission_error,
"/home/fdmanana/git/hub/couchdb/tmp/log/couch.log"}
in function gen_server:init_it/6
ancestors: [couch_primary_services,couch_server_sup,<0.32.0>]
If nobody raise an objection, I'll commit it to trunk.
> Error log contents when the config files are not writable are not helpful
> -------------------------------------------------------------------------
>
> 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
> Attachments: COUCHDB-966.patch
>
>
> 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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