From: Jonas Hartmann <Mail@...>
Date: 2005-06-25T13:50:26+09:00
Subject: Re: FSDB, Apache, FastCGI - ERROR: FSDB::Database::DirIsImmutableError

Jonas Hartmann wrote:
> Ara.T.Howard wrote:
> 
>> On Sat, 25 Jun 2005, Jonas Hartmann wrote:
>>
>>> when I run a script [1] from the command line, it works. it asks for 
>>> cgi pairs - key/value - cause it is in offline mode.
>>>
>>> when i run it through mod_fastcgi => ruby it does not work.
>>>
>>> a ruby script printing out the http_enviroment via FastCGI works (so 
>>> FastCGI works).
>>>
>>> If i run the script via browser (on 
>>> http://localhost/ruby/db_connect.rb) I get the following error + 
>>> backtrace:
>>>
>>> -- ERROR: FSDB::Database::DirIsImmutableError
>>> -- BACKTRACE:
>>> ./fsdb/lib/fsdb/database.rb:404:in `open_write_lock
>>> ./fsdb/lib/fsdb/database.rb:620:in `[]=
>>> ./fsdb/lib/fsdb/database.rb:619:in `object_exclusive
>>> ./fsdb/lib/fsdb/database.rb:358:in `sync_object_exclusive
>>> ./fsdb/lib/fsdb/database.rb:102:in `synchronize
>>> ./fsdb/lib/fsdb/database.rb:102:in `sync_object_exclusive
>>> ./fsdb/lib/fsdb/database.rb:358:in `object_exclusive
>>> ./fsdb/lib/fsdb/database.rb:357:in `use_cache_entry
>>> ./fsdb/lib/fsdb/database.rb:357:in `object_exclusive
>>> ./fsdb/lib/fsdb/database.rb:619:in `[]=
>>> /Library/WebServer/Documents/ruby/db_connect.rb:10/usr/local/lib/ruby/1.8/apache/ruby-run.rb:53:in 
>>> `load
>>> /usr/local/lib/ruby/1.8/apache/ruby-run.rb:53:in `handler
>>>
>>> It seems to mean that I cannot change/write to the dir, right?
>>>
>>> I have no clue what I should do about that. How can i make the script 
>>> access the dir /tmp/my-data correctly? What is causing this error?
>>
>>
>>
>> you ran once as normal user - now user www (or whatever) can't access it.
> 
> to extend this case.
> 
> I can delete the temporary directories and run it via www user the first 
> time and the www user won't be able to access it.
> 
> To make it simple I exchanged:
> 
>   db = FSDB::Database.new('/tmp/my-data')
> # notice
>                    ^
> with
> 
>   db = FSDB::Database.new('tmp/my-data')
> 
> i ran it again via normal user/terminal on darwin - it again works.
> then  i deleted the tmp directory that had been created, and after that 
> ran it again via browser/webserver:
> 
> it now says:
> 
> -- ERROR: Insecure operation - directory?
> -- BACKTRACE:
> /usr/local/lib/ruby/1.8/ftools.rb:204:in `directory?
> /usr/local/lib/ruby/1.8/ftools.rb:204:in `makedirs
> /usr/local/lib/ruby/1.8/ftools.rb:202:in `each
> /usr/local/lib/ruby/1.8/ftools.rb:202:in `makedirs
> /usr/local/lib/ruby/site_ruby/1.8/fsdb/database.rb:147:in `initialize
> /Library/WebServer/Documents/ruby/db_connect.rb:8:in `new
> /Library/WebServer/Documents/ruby/db_connect.rb:8/usr/local/lib/ruby/1.8/apache/ruby-run.rb:53:in 
> `load
> /usr/local/lib/ruby/1.8/apache/ruby-run.rb:53:in `handler
> 
>> blow away the dir
> 
> I have already tried that. gives this error:
> 
> -- ERROR: undefined method `close' for nil:NilClass
> -- BACKTRACE:
> /usr/local/lib/ruby/site_ruby/1.8/fsdb/database.rb:318:in `inc_version_of
> /usr/local/lib/ruby/site_ruby/1.8/fsdb/database.rb:622:in `[]=
> /usr/local/lib/ruby/site_ruby/1.8/fsdb/database.rb:620:in `open_write_lock
> /usr/local/lib/ruby/site_ruby/1.8/fsdb/database.rb:620:in `[]=
> /usr/local/lib/ruby/site_ruby/1.8/fsdb/database.rb:619:in `object_exclusive
> /usr/local/lib/ruby/site_ruby/1.8/fsdb/database.rb:358:in 
> `sync_object_exclusive
> /usr/local/lib/ruby/site_ruby/1.8/fsdb/database.rb:102:in `synchronize
> /usr/local/lib/ruby/site_ruby/1.8/fsdb/database.rb:102:in 
> `sync_object_exclusive
> /usr/local/lib/ruby/site_ruby/1.8/fsdb/database.rb:358:in `object_exclusive
> /usr/local/lib/ruby/site_ruby/1.8/fsdb/database.rb:357:in `use_cache_entry
> /usr/local/lib/ruby/site_ruby/1.8/fsdb/database.rb:357:in `object_exclusive
> /usr/local/lib/ruby/site_ruby/1.8/fsdb/database.rb:619:in `[]=
> /Library/WebServer/Documents/ruby/db_connect.rb:10/usr/local/lib/ruby/1.8/apache/ruby-run.rb:53:in 
> `load
> /usr/local/lib/ruby/1.8/apache/ruby-run.rb:53:in `handler
> 
>> and try again OR do a recursive chown of the dir to apache
>> as root.
>>
>>>
>>> It should just print "Hello world, and hello database!\n" (and does 
>>> that in offlinemode via "ruby db_connect.rb" + CTRL+D
>>>
>>>
>>> [1]: http://rafb.net/paste/results/6VIFri64.html
>>>
>>
>> -a

besides that: all directories are being created as told (but that 
process thows a lot of errors by calling via terminal).

besides all that I notice that the file: "..fsdb.meta.myself" is not 
beeing created by the www call of the script, while it is being 
created by the non terminal call/user call. atleast the file "myself" 
is beeing created in both cases, holding the data inserted in both cases.