[kullervo]

Jag kör en MySQL 4.1.19 för några HEAP-tabeller. Varje natt dumpas datan från MySQL:en till den riktiga databasen. Idag växte en av HEAP-tabellerna sig för stor så att MySQL spottar ur sig följande vid en INSERT:

ERROR 1114 (HY000): The table 'shws' is full

Jag har konstaterat är att max_heap_table_size är större än Data_length för den aktuella tabellen. Vad är problemet?

[quote][b]
mysql> SHOW TABLE STATUS;
+------------+--------+---------+------------+--------+----------------+-------------+-----------------+--------------+-----------+----------------+-------------+-------------+------------+-------------------+----------+----------------+---------+
| Name | Engine | Version | Row_format | Rows | Avg_row_length | Data_length | Max_data_length | Index_length | Data_free | Auto_increment | Create_time | Update_time | Check_time | Collation | Checksum | Create_options | Comment |
+------------+--------+---------+------------+--------+----------------+-------------+-----------------+--------------+-----------+----------------+-------------+-------------+------------+-------------------+----------+----------------+---------+
| shws | HEAP | 9 | Fixed | 704044 | 13 | 11286720 | 9087650 | 5899448 | 0 | NULL | NULL | NULL | NULL | latin1_swedish_ci | NULL | | |
+------------+--------+---------+------------+--------+----------------+-------------+-----------------+--------------+-----------+----------------+-------------+-------------+------------+-------------------+----------+----------------+---------+
5 rows in set (0.00 sec)

mysql> SHOW STATUS;
+----------------------------+------------+
| Variable_name | Value |
+----------------------------+------------+
| Aborted_clients | 46 |
| Aborted_connects | 822 |
| Binlog_cache_disk_use | 0 |
| Binlog_cache_use | 0 |
| Bytes_received | 2574152590 |
| Bytes_sent | 325391816 |
| Com_admin_commands | 43430442 |
| Com_alter_db | 0 |
| Com_alter_table | 0 |
| Com_analyze | 0 |
| Com_backup_table | 0 |
| Com_begin | 0 |
| Com_change_db | 43617206 |
| Com_change_master | 0 |
| Com_check | 0 |
| Com_checksum | 0 |
| Com_commit | 0 |
| Com_create_db | 0 |
| Com_create_function | 0 |
| Com_create_index | 0 |
| Com_create_table | 0 |
| Com_dealloc_sql | 0 |
| Com_delete | 17970 |
| Com_delete_multi | 0 |
| Com_do | 0 |
| Com_drop_db | 1 |
| Com_drop_function | 0 |
| Com_drop_index | 0 |
| Com_drop_table | 0 |
| Com_drop_user | 0 |
| Com_execute_sql | 0 |
| Com_flush | 0 |
| Com_grant | 0 |
| Com_ha_close | 0 |
| Com_ha_open | 0 |
| Com_ha_read | 0 |
| Com_help | 0 |
| Com_insert | 6771765 |
| Com_insert_select | 0 |
| Com_kill | 0 |
| Com_load | 0 |
| Com_load_master_data | 0 |
| Com_load_master_table | 0 |
| Com_lock_tables | 0 |
| Com_optimize | 0 |
| Com_preload_keys | 0 |
| Com_prepare_sql | 0 |
| Com_purge | 0 |
| Com_purge_before_date | 0 |
| Com_rename_table | 0 |
| Com_repair | 0 |
| Com_replace | 0 |
| Com_replace_select | 0 |
| Com_reset | 0 |
| Com_restore_table | 0 |
| Com_revoke | 0 |
| Com_revoke_all | 0 |
| Com_rollback | 0 |
| Com_savepoint | 0 |
| Com_select | 37965738 |
| Com_set_option | 5 |
| Com_show_binlog_events | 0 |
| Com_show_binlogs | 0 |
| Com_show_charsets | 0 |
| Com_show_collations | 0 |
| Com_show_column_types | 0 |
| Com_show_create_db | 0 |
| Com_show_create_table | 2 |
| Com_show_databases | 0 |
| Com_show_errors | 0 |
| Com_show_fields | 0 |
| Com_show_grants | 0 |
| Com_show_innodb_status | 0 |
| Com_show_keys | 0 |
| Com_show_logs | 0 |
| Com_show_master_status | 0 |
| Com_show_ndb_status | 0 |
| Com_show_new_master | 0 |
| Com_show_open_tables | 0 |
| Com_show_privileges | 0 |
| Com_show_processlist | 0 |
| Com_show_slave_hosts | 0 |
| Com_show_slave_status | 0 |
| Com_show_status | 1 |
| Com_show_storage_engines | 0 |
| Com_show_tables | 8 |
| Com_show_variables | 9 |
| Com_show_warnings | 0 |
| Com_slave_start | 0 |
| Com_slave_stop | 0 |
| Com_stmt_close | 0 |
| Com_stmt_execute | 0 |
| Com_stmt_prepare | 0 |
| Com_stmt_reset | 0 |
| Com_stmt_send_long_data | 0 |
| Com_truncate | 0 |
| Com_unlock_tables | 43616245 |
| Com_update | 117250597 |
| Com_update_multi | 0 |
| Connections | 187396 |
| Created_tmp_disk_tables | 0 |
| Created_tmp_files | 7873 |
| Created_tmp_tables | 0 |
| Delayed_errors | 0 |
| Delayed_insert_threads | 0 |
| Delayed_writes | 0 |
| Flush_commands | 1 |
| Handler_commit | 0 |
| Handler_delete | 5975092 |
| Handler_discover | 0 |
| Handler_read_first | 8799 |
| Handler_read_key | 121011174 |
| Handler_read_next | 0 |
| Handler_read_prev | 0 |
| Handler_read_rnd | 0 |
| Handler_read_rnd_next | 677972160 |
| Handler_rollback | 1 |
| Handler_update | 83035937 |
| Handler_write | 6771861 |
| Key_blocks_not_flushed | 0 |
| Key_blocks_unused | 14 |
| Key_blocks_used | 0 |
| Key_read_requests | 0 |
| Key_reads | 0 |
| Key_write_requests | 0 |
| Key_writes | 0 |
| Max_used_connections | 701 |
| Not_flushed_delayed_rows | 0 |
| Open_files | 0 |
| Open_streams | 0 |
| Open_tables | 4 |
| Opened_tables | 8522463 |
| Qcache_free_blocks | 0 |
| Qcache_free_memory | 0 |
| Qcache_hits | 0 |
| Qcache_inserts | 0 |
| Qcache_lowmem_prunes | 0 |
| Qcache_not_cached | 0 |
| Qcache_queries_in_cache | 0 |
| Qcache_total_blocks | 0 |
| Questions | 249452612 |
| Rpl_status | NULL |
| Select_full_join | 0 |
| Select_full_range_join | 0 |
| Select_range | 0 |
| Select_range_check | 0 |
| Select_scan | 5723198 |
| Slave_open_temp_tables | 0 |
| Slave_retried_transactions | 0 |
| Slave_running | OFF |
| Slow_launch_threads | 0 |
| Slow_queries | 0 |
| Sort_merge_passes | 32981 |
| Sort_range | 0 |
| Sort_rows | 5622546 |
| Sort_scan | 2846 |
| Table_locks_immediate | 161634583 |
| Table_locks_waited | 388812 |
| Threads_cached | 0 |
| Threads_connected | 336 |
| Threads_created | 187395 |
| Threads_running | 1 |
| Uptime | 1027180 |
+----------------------------+------------+
163 rows in set (0.01 sec)


mysql> SHOW VARIABLES;
+---------------------------------+-----------------------------------------------+
| Variable_name | Value |
+---------------------------------+-----------------------------------------------+
| back_log | 50 |
| basedir | /usr/local/mysql-4.1.19/ |
| 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-4.1.19/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 | /db/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 | NO |
| have_blackhole_engine | NO |
| have_compress | YES |
| have_crypt | YES |
| have_csv | NO |
| have_example_engine | NO |
| have_geometry | YES |
| have_innodb | YES |
| have_isam | NO |
| have_ndbcluster | NO |
| 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 | ibdata1:10M:autoextend |
| 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 | 16384 |
| key_cache_age_threshold | 300 |
| key_cache_block_size | 1024 |
| key_cache_division_limit | 100 |
| language | /usr/local/mysql-4.1.19/share/mysql/english/ |
| large_files_support | ON |
| license | GPL |
| local_infile | ON |
| locked_in_memory | OFF |
| log | OFF |
| log_bin | OFF |
| log_error | |
| log_slave_updates | OFF |
| log_slow_queries | OFF |
| log_update | OFF |
| log_warnings | 1 |
| long_query_time | 10 |
| low_priority_updates | OFF |
| lower_case_file_system | OFF |
| lower_case_table_names | 0 |
| max_allowed_packet | 1047552 |
| max_binlog_cache_size | 4294967295 |
| max_binlog_size | 1073741824 |
| max_connect_errors | 10 |
| max_connections | 700 |
| max_delayed_threads | 20 |
| max_error_count | 64 |
| max_heap_table_size | 33554432 |
| max_insert_delayed_threads | 20 |
| max_join_size | 4294967295 |
| max_length_for_sort_data | 1024 |
| max_prepared_stmt_count | 16382 |
| 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 | OFF |
| myisam_repair_threads | 1 |
| myisam_sort_buffer_size | 8388608 |
| myisam_stats_method | nulls_unequal |
| net_buffer_length | 2048 |
| net_read_timeout | 30 |
| net_retry_count | 10 |
| net_write_timeout | 60 |
| new | OFF |
| old_passwords | OFF |
| open_files_limit | 3510 |
| pid_file | /db/mysql/data/fotofoto.pid |
| port | 3306 |
| preload_buffer_size | 32768 |
| prepared_stmt_count | 0 |
| protocol_version | 10 |
| query_alloc_block_size | 8192 |
| query_cache_limit | 1048576 |
| query_cache_min_res_unit | 4096 |
| query_cache_size | 0 |
| query_cache_type | ON |
| query_cache_wlock_invalidate | OFF |
| query_prealloc_size | 8192 |
| range_alloc_block_size | 2048 |
| read_buffer_size | 258048 |
| read_only | OFF |
| read_rnd_buffer_size | 258048 |
| relay_log_purge | ON |
| relay_log_space_limit | 0 |
| 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 |
| slave_transaction_retries | 0 |
| slow_launch_time | 2 |
| socket | /tmp/mysql.sock |
| sort_buffer_size | 65528 |
| sql_mode | |
| sql_notes | OFF |
| sql_warnings | OFF |
| storage_engine | MyISAM |
| sync_binlog | 0 |
| sync_frm | ON |
| sync_replication | 0 |
| sync_replication_slave_id | 0 |
| sync_replication_timeout | 0 |
| system_time_zone | CET |
| table_cache | 4 |
| table_type | MyISAM |
| thread_cache_size | 0 |
| thread_stack | 131072 |
| time_format | %H:%i:%s |
| time_zone | SYSTEM |
| tmp_table_size | 33554432 |
| tmpdir | |
| transaction_alloc_block_size | 8192 |
| transaction_prealloc_size | 4096 |
| tx_isolation | REPEATABLE-READ |
| version

[najk]

Du skriver att du dumpar ut datat.
Finns det någon som hellst risk att det är /tmp (eller /var/tmp) som är full? (eller vart nu din mysql sparar sina tempfiler)
Det finns en chans att det är där felet är och inte i själva mysql.

[kullervo]

Dubbelpost.

[kullervo]

Felet blir när jag stoppar in data i tabellen och inte när jag läser ur den. Inget filsystem fullt.

[Seattlegrunge]

Hur f*n har den här tråden lyckats bli så deformerad egentligen??!? Verkar osannolikt!

[kullervo]

Jag testade först köra med CODE-tags istället för QUOTE-tags, men det hjälpte inte. Det vore bra om stora quotes visades minimerat by default eller att de är scrollbara.

[SimonP]

Ledigt RAM minne kanske slut?
En annan grej, "max_data_length" är mindre än "data_length", är inte det konstigt?

[kullervo]

Jo, konstigt är det men de siffrorna är inte exakta (konstigt nog).

For MEMORY (HEAP) tables, the Data_length, Max_data_length, and Index_length values approximate the actual amount of allocated memory. The allocation algorithm reserves memory in large amounts to reduce the number of allocation operations.

- http://dev.mysql.com/doc/refman/4.1/en/sho...ble-status.html

8GiB swap är helt oanvänd. Hade den fått slut på minne hade den nog krashat innan jag funderat på vad som kan vara fel på mysql:en (maskinen kör Linux).

[kullervo]

Det verkar vara en bug:
http://bugs.mysql.com/bug.php?id=19138

Jag har tappat räkningen på hur många buggar i mysql 4.1 jag råkat ut för. Nu blir jag tvungen att uppgradera till nyare verision av 4.1 med säkert fler nya buggar. Suck.

Tack för svaren!

[Timofey]

Verkar vara en bugg med denna tråd...