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Persistant Index Problems and mySQL crashing.
Posted by: Andrew Mcleod
Date: March 01, 2005 01:29AM

Hi,

Each time I restart mysql-max-4.1.10, I see a mass of problems with almost every MYI file in my database.

Data seems fine, but index files, always, are causing errors and table repairs are required.

It's driving me nuts, I can't restart mysql without it being down for ages waiting for table repairs.

I've started to suspect some sort of hardware error, but if it was my disk at fault, why would it always be the indexes that are dying?

Below is from the mysqlinstance.err log and show variables and a snippet of one of many

Example of error output below:

050301 17:19:10 [ERROR] /usr/local/mysql/bin/mysqld: Can't open file: 'phpbb_privmsgs.MYI' (errno: 145)
050301 17:19:11 [ERROR] /usr/local/mysql/bin/mysqld: Can't open file: 'phpbb_privmsgs_text.MYI' 050301 17:19:13 [ERROR] /usr/local/mysql/bin/mysqld: Can't open file: 'iBB_member_extra.MYI' (errno: 145)
050301 17:19:21 [ERROR] /usr/local/mysql/bin/mysqld: Can't open file: 'ibf_contacts.MYI' (errno: 145)
050301 17:19:23 [ERROR] /usr/local/mysql/bin/mysqld: Can't open file: 'ppd_iponline.MYI' (errno: 145)
050301 17:19:24 [ERROR] /usr/local/mysql/bin/mysqld: Can't open file: 'phpbb_users.MYI' (errno: 145)
050301 17:19:24 [ERROR] /usr/local/mysql/bin/mysqld: Can't open file: 'phpbb_sessions.MYI' (errno: 145)
050301 17:19:24 [ERROR] /usr/local/mysql/bin/mysqld: Can't open file: 'phpbb_topics.MYI' (errno: 145)
050301 17:19:25 [ERROR] /usr/local/mysql/bin/mysqld: Can't open file: 'ibf_gallery_albums.MYI' (errno: 145)
050301 17:19:31 [ERROR] /usr/local/mysql/bin/mysqld: Can't open file: 'iBB_message_text.MYI' (errno: 145)

This also happens occasionally:

mysqld got signal 11;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
We will try our best to scrape up some info that will hopefully help diagnose
the problem, but since we have already crashed, something is definitely wrong
and this may fail.

key_buffer_size=1073741824
read_buffer_size=1044480
max_used_connections=32
max_connections=1024
threads_connected=12
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_connections = 3141624 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

thd=0x99f68108
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
Cannot determine thread, fp=0x9a46259c, backtrace may not be correct.
Stack range sanity check OK, backtrace follows:
0x8135b13
0x55000420
0x146c
0x81437c9
0x8c998c
0x8377da
New value of fp=(nil) failed sanity check, terminating stack trace!
Please read http://dev.mysql.com/doc/mysql/en/Using_stack_trace.html and follow instructions on how to resolve the stack trace. Resolved
stack trace is much more helpful in diagnosing the problem, so please do
resolve it
Trying to get some variables.
Some pointers may be invalid and cause the dump to abort...
thd->query at (nil) is invalid pointer
thd->thread_id=23813
The manual page at http://www.mysql.com/doc/en/Crashing.html contains
information that should help you find out what is causing the crash.

Number of processes running now: 0
050301 16:17:29 mysqld restarted


mysql> show variables;
+---------------------------------+---------------------------------------------------------------------+
| Variable_name | Value |
+---------------------------------+---------------------------------------------------------------------+
| back_log | 50 |
| basedir | /usr/local/mysql-max-4.1.10-pc-linux-gnu-i686/ |
| bdb_cache_size | 8388600 |
| bdb_home | |
| bdb_log_buffer_size | 0 |
| bdb_logdir | |
| bdb_max_lock | 10000 |
| bdb_shared_data | OFF |
| bdb_tmpdir | |
| binlog_cache_size | 32768 |
| bulk_insert_buffer_size | 8388608 |
| character_set_client | latin1 |
| character_set_connection | latin1 |
| character_set_database | latin1 |
| character_set_results | latin1 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/local/mysql-max-4.1.10-pc-linux-gnu-i686/share/mysql/charsets/ |
| collation_connection | latin1_swedish_ci |
| collation_database | latin1_swedish_ci |
| collation_server | latin1_swedish_ci |
| concurrent_insert | ON |
| connect_timeout | 5 |
| datadir | /usr/local/mysql/data/ |
| date_format | %Y-%m-%d |
| datetime_format | %Y-%m-%d %H:%i:%s |
| default_week_format | 0 |
| delay_key_write | ON |
| delayed_insert_limit | 100 |
| delayed_insert_timeout | 300 |
| delayed_queue_size | 1000 |
| expire_logs_days | 0 |
| flush | OFF |
| flush_time | 0 |
| ft_boolean_syntax | + -><()~*:""&| |
| ft_max_word_len | 84 |
| ft_min_word_len | 4 |
| ft_query_expansion_limit | 20 |
| ft_stopword_file | (built-in) |
| group_concat_max_len | 1024 |
| have_archive | YES |
| have_bdb | DISABLED |
| have_compress | YES |
| have_crypt | YES |
| have_csv | NO |
| have_example_engine | NO |
| have_geometry | YES |
| have_innodb | DISABLED |
| have_isam | NO |
| have_ndbcluster | DISABLED |
| have_openssl | NO |
| have_query_cache | YES |
| have_raid | YES |
| have_rtree_keys | YES |
| have_symlink | YES |
| init_connect | |
| init_file | |
| init_slave | |
| innodb_additional_mem_pool_size | 1048576 |
| innodb_autoextend_increment | 8 |
| innodb_buffer_pool_awe_mem_mb | 0 |
| innodb_buffer_pool_size | 8388608 |
| innodb_data_file_path | |
| innodb_data_home_dir | |
| innodb_fast_shutdown | ON |
| innodb_file_io_threads | 4 |
| innodb_file_per_table | OFF |
| innodb_flush_log_at_trx_commit | 1 |
| innodb_flush_method | |
| innodb_force_recovery | 0 |
| innodb_lock_wait_timeout | 50 |
| innodb_locks_unsafe_for_binlog | OFF |
| innodb_log_arch_dir | |
| innodb_log_archive | OFF |
| innodb_log_buffer_size | 1048576 |
| innodb_log_file_size | 5242880 |
| innodb_log_files_in_group | 2 |
| innodb_log_group_home_dir | |
| innodb_max_dirty_pages_pct | 90 |
| innodb_max_purge_lag | 0 |
| innodb_mirrored_log_groups | 1 |
| innodb_open_files | 300 |
| innodb_table_locks | ON |
| innodb_thread_concurrency | 8 |
| interactive_timeout | 28800 |
| join_buffer_size | 131072 |
| key_buffer_size | 1073741824 |
| key_cache_age_threshold | 300 |
| key_cache_block_size | 1024 |
| key_cache_division_limit | 100 |
| language | /usr/local/mysql-max-4.1.10-pc-linux-gnu-i686/share/mysql/english/ |
| large_files_support | ON |
| license | GPL |
| local_infile | ON |
| locked_in_memory | OFF |
| log | OFF |
| log_bin | ON |
| log_error | |
| log_slave_updates | OFF |
| log_slow_queries | OFF |
| log_update | ON |
| log_warnings | 1 |
| long_query_time | 10 |
| low_priority_updates | OFF |
| lower_case_file_system | OFF |
| lower_case_table_names | 0 |
| max_allowed_packet | 523264 |
| max_binlog_cache_size | 4294967295 |
| max_binlog_size | 1073741824 |
| max_connect_errors | 10 |
| max_connections | 1024 |
| max_delayed_threads | 20 |
| max_error_count | 64 |
| max_heap_table_size | 16777216 |
| max_insert_delayed_threads | 20 |
| max_join_size | 18446744073709551615 |
| max_length_for_sort_data | 1024 |
| max_relay_log_size | 0 |
| max_seeks_for_key | 4294967295 |
| max_sort_length | 1024 |
| max_tmp_tables | 32 |
| max_user_connections | 0 |
| max_write_lock_count | 4294967295 |
| myisam_data_pointer_size | 4 |
| myisam_max_extra_sort_file_size | 2147483648 |
| myisam_max_sort_file_size | 2147483647 |
| myisam_recover_options | DEFAULT |
| myisam_repair_threads | 4 |
| myisam_sort_buffer_size | 33554432 |
| ndb_autoincrement_prefetch_sz | 32 |
| ndb_force_send | ON |
| ndb_use_exact_count | ON |
| ndb_use_transactions | ON |
| net_buffer_length | 16384 |
| net_read_timeout | 30 |
| net_retry_count | 10 |
| net_write_timeout | 60 |
| new | OFF |
| old_passwords | ON |
| open_files_limit | 5130 |
| pid_file | /usr/local/mysql/data/stoneleigh.pid |
| port | 3306 |
| preload_buffer_size | 32768 |
| protocol_version | 10 |
| query_alloc_block_size | 8192 |
| query_cache_limit | 1048576 |
| query_cache_min_res_unit | 4096 |
| query_cache_size | 67108864 |
| query_cache_type | ON |
| query_cache_wlock_invalidate | OFF |
| query_prealloc_size | 8192 |
| range_alloc_block_size | 2048 |
| read_buffer_size | 1044480 |
| read_only | OFF |
| read_rnd_buffer_size | 4190208 |
| relay_log_purge | ON |
| rpl_recovery_rank | 0 |
| secure_auth | OFF |
| server_id | 1 |
| skip_external_locking | ON |
| skip_networking | OFF |
| skip_show_database | OFF |
| slave_net_timeout | 3600 |
| slow_launch_time | 2 |
| socket | /tmp/mysql.sock |
| sort_buffer_size | 1048568 |
| sql_mode | |
| storage_engine | MyISAM |
| sync_binlog | 0 |
| sync_replication | 0 |
| sync_replication_slave_id | 0 |
| sync_replication_timeout | 0 |
| sync_frm | ON |
| system_time_zone | EST |
| table_cache | 2048 |
| table_type | MyISAM |
| thread_cache_size | 8 |
| thread_stack | 196608 |
| time_format | %H:%i:%s |
| time_zone | SYSTEM |
| tmp_table_size | 33554432 |
| tmpdir | /tmp/ |
| transaction_alloc_block_size | 8192 |
| transaction_prealloc_size | 4096 |
| tx_isolation | REPEATABLE-READ |
| version | 4.1.10-max-log |
| version_bdb | Sleepycat Software: Berkeley DB 4.1.24: (February 12, 2005) |
| version_comment | MySQL Community Edition - Experimental (GPL) |
| version_compile_machine | i686 |
| version_compile_os | pc-linux-gnu |
| wait_timeout | 28800 |
+---------------------------------+---------------------------------------------------------------------+

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Posted
Persistant Index Problems and mySQL crashing.
March 01, 2005 01:29AM


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