i am using moodle version 2.6 While installing moodle, i get database error like this,
" Error: Database connection failed
It is possible that the database is overloaded or otherwise not running properly.
The site administrator should also check that the database details have been correctly specified in config.php "
Warning: mysqli::mysqli(): (HY000/2002): No connection could be made because the target machine actively refused it. in C:\xampp\htdocs\moodle\lib\dml\mysqli_native_moodle_database.php on line 76
My error logs are the following,
2013-11-29 10:04:58 3820 [Note] Plugin 'FEDERATED' is disabled.
2013-11-29 10:04:58 13c InnoDB: Warning: Using innodb_additional_mem_pool_size is DEPRECATED. This option may be removed in future releases, together with the option innodb_use_sys_malloc and with the InnoDB's internal memory allocator.
2013-11-29 10:04:58 3820 [Note] InnoDB: The InnoDB memory heap is disabled
2013-11-29 10:04:58 3820 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
2013-11-29 10:04:58 3820 [Note] InnoDB: Compressed tables use zlib 1.2.3
2013-11-29 10:04:58 3820 [Note] InnoDB: Not using CPU crc32 instructions
2013-11-29 10:04:58 3820 [Note] InnoDB: Initializing buffer pool, size = 16.0M
2013-11-29 10:04:58 3820 [Note] InnoDB: Completed initialization of buffer pool
2013-11-29 10:04:58 3820 [Note] InnoDB: Highest supported file format is Barracuda.
2013-11-29 10:04:58 3820 [Note] InnoDB: The log sequence numbers 0 and 0 in ibdata files do not match the log sequence number 6382695 in the ib_logfiles!
2013-11-29 10:04:58 3820 [Note] InnoDB: Database was not shutdown normally!
2013-11-29 10:04:58 3820 [Note] InnoDB: Starting crash recovery.
2013-11-29 10:04:58 3820 [Note] InnoDB: Reading tablespace information from the .ibd files...
2013-11-29 10:04:58 3820 [ERROR] InnoDB: Attempted to open a previously opened tablespace. Previous tablespace moodle/mdl_config_plugins uses space ID: 2 at filepath: .\moodle\mdl_config_plugins.ibd. Cannot open tablespace mysql/innodb_index_stats which uses space ID: 2 at filepath: .\mysql\innodb_index_stats.ibd
InnoDB: Error: could not open single-table tablespace file .\mysql\innodb_index_stats.ibd
InnoDB: We do not continue the crash recovery, because the table may become
InnoDB: corrupt if we cannot apply the log records in the InnoDB log to it.
InnoDB: To fix the problem and start mysqld:
InnoDB: 1) If there is a permission problem in the file and mysqld cannot
InnoDB: open the file, you should modify the permissions.
InnoDB: 2) If the table is not needed, or you can restore it from a backup,
InnoDB: then you can remove the .ibd file, and InnoDB will do a normal
InnoDB: crash recovery and ignore that table.
InnoDB: 3) If the file system or the disk is broken, and you cannot remove
InnoDB: the .ibd file, you can set innodb_force_recovery > 0 in my.cnf
InnoDB: and force InnoDB to continue crash recovery here.
please help to solve this error...