gnunet-svn
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[GNUnet-SVN] r24840 - gnunet/doc


From: gnunet
Subject: [GNUnet-SVN] r24840 - gnunet/doc
Date: Thu, 8 Nov 2012 15:06:40 +0100

Author: grothoff
Date: 2012-11-08 15:06:40 +0100 (Thu, 08 Nov 2012)
New Revision: 24840

Removed:
   gnunet/doc/README.mysql
Log:
-updated and moved to https://gnunet.org/mysql-setup

Deleted: gnunet/doc/README.mysql
===================================================================
--- gnunet/doc/README.mysql     2012-11-08 13:07:53 UTC (rev 24839)
+++ gnunet/doc/README.mysql     2012-11-08 14:06:40 UTC (rev 24840)
@@ -1,95 +0,0 @@
-How to setup the MySQL database for GNUnet.
-
-NOTE: This db module does NOT work with mysql before 4.1 since we need
-prepared statements.  We are generally testing the code against MySQL
-5.0 at this point.
- 
-HIGHLIGHTS
-
-Pros
- + On up-to-date hardware where mysql can be used comfortably, this
-   module will have better performance than the other db choices
-   (according to our tests). 
- + Its often possible to recover the mysql database from internal 
-   inconsistencies. The other db choices do not support repair 
-   (gnunet-check cannot fix problems internal to the dbmgr!). 
-   For example, we have seen several cases where power failure 
-   has ruined a gdbm database beyond repair. 
- + much faster (for one of the key benchmarks -- content migration
-   -- we have measure mysql taking 2s for an operation where
-   sqlite takes 150s).
-Cons 
- - Memory usage (Comment: "I have 1G and it never caused me trouble")
- - Manual setup
-
-MANUAL SETUP INSTRUCTIONS
-
- 1) in /etc/gnunet.conf, set
-    DATABASE = mysql
-
- 2) Then access mysql as root,
-    $ mysql -u root -p 
-    and do the following. [You should replace $USER with the username 
-    that will be running the gnunetd process].
-
-      CREATE DATABASE gnunet;
-      GRANT select,insert,update,delete,create,alter,drop,create temporary 
tables
-         ON gnunet.* TO address@hidden;
-      SET PASSWORD FOR address@hidden('$the_password_you_like');
-      FLUSH PRIVILEGES;
-
- 3) In the $HOME directory of $USER, create a ".my.cnf" file 
-    with the following lines
- 
-      [client]
-      user=$USER
-      password=$the_password_you_like
-    
- Thats it. Note that .my.cnf file is a security risk unless its on
- a safe partition etc. The $HOME/.my.cnf can of course be a symbolic
- link. Even greater security risk can be achieved by setting no 
- password for $USER.  Luckily $USER has only priviledges to mess 
- up GNUnet's tables, nothing else (unless you give him more, 
- of course).
-
- 4) Still, perhaps you should briefly try if the DB connection 
-    works. First, login as $USER. Then use,
-
-    $ mysql -u $USER
-    mysql> use gnunet;
-    
-    If you get the message "Database changed" it probably works.
- 
-    [If you get "ERROR 2002: Can't connect to local MySQL server 
-     through socket '/tmp/mysql.sock' (2)" it may be resolvable by
-     "ln -s /var/run/mysqld/mysqld.sock /tmp/mysql.sock"
-     so there may be some additional trouble depending on your mysql setup.]
-
- 5) If you want to run the testcases, you must create a second
-    database "gnunetcheck" with the same username and password.
-    This database will then be used for testing ("make check").
-
-
-REPAIRING TABLES 
-
-- Its probably healthy to check your tables for inconsistencies
-  every now and then, especially after system crashes.
-- If you get odd SEGVs on gnunetd startup, it might be that the mysql
-  databases have been corrupted. 
-- The tables can be verified/fixed in two ways;
-  1) by shutting down mysqld (mandatory!) and running 
-  # myisamchk -r *.MYI 
-  in /var/lib/mysql/gnunet/ (or wherever the tables are stored).
-  Another repair command is "mysqlcheck". The usable command
-  may depend on your mysql build/version. Or,
-  2) by executing 
-  mysql> REPAIR TABLE gn090;
-
-
-PROBLEMS?
-
-If you have problems related to the mysql module, your best friend is
-probably the mysql manual. The first thing to check is that mysql is
-basically operational, that you can connect to it, create tables,
-issue queries etc.
-




reply via email to

[Prev in Thread] Current Thread [Next in Thread]