I've an online game
the game server execute more than 1M queries [ SELECT , REPLACE , UPDATE ] every 10 sec
the problem the memory usage still increasing i dun know why ??
i mean if we suppose that memory usage at the moment is 2000M and it increases to 3000M when the game server execute the queries . why don't the memory usage back again to 2000M or around value after excuting ??? .. it stills increasing and increasing
This Problem Makes The Following Error Occur
2016-7-14 16:17:52 -- ERROR: Database ExecuteSQL(MySQL client run out of memory) occur mysql error(SELECT * FROM cq_tutor WHERE tutor_id = 16090848 AND Betrayal_flag = 0).
2016-7-14 16:17:52 -- ERROR: Database ExecuteSQL(Lost connection to MySQL server during query) occur mysql error(SELECT * FROM cq_tutor WHERE Student_id = 16090848 AND Betrayal_flag = 0 LIMIT 1).
btw when i restart the game server the memory usage back to 2000M and still increasing too ..
I want to know the reason of memory usage increasing
i stopped caching of mysql but the same problem occur
mysql version is 4.0.17
the client i use is winmysqladmin 1.4
mysql> SHOW VARIABLES;
+------------------------------+-----------------------------------
| Variable_name | Value |
+------------------------------+-----------------------------------
| back_log | 50
| basedir | E:\ZFSERVER\MYSQL\
| binlog_cache_size | 32768
| bulk_insert_buffer_size | 8388608
| character_set | latin1
| character_sets | latin1 big5 czech euc_kr gb2312 gbk latin1_de sjis tis620 ujis dec8 dos german1 hp8 koi8_ru latin2 swe7 usa7 cp1251 danish hebrew win1251 estonia hungarian koi8_ukr win1251ukr greek win1250 croat cp1257 latin5 |
| concurrent_insert | ON
| connect_timeout | 5
| convert_character_set |
| datadir | E:\ZFSERVER\MYSQL\data\
| default_week_format | 0
| delay_key_write | ON
| delayed_insert_limit | 100
| delayed_insert_timeout | 300
| delayed_queue_size | 1000
| flush | OFF
| flush_time | 1800
| ft_boolean_syntax | + -><()~*:""&|
| ft_min_word_len | 4
| ft_max_word_len | 254
| ft_max_word_len_for_sort | 20
| ft_stopword_file | (built-in)
| have_bdb | NO
| have_crypt | NO
| have_innodb | YES
| have_isam | YES
| have_raid | NO
| have_symlink | YES
| have_openssl | NO
| have_query_cache | YES
| init_file |
| innodb_additional_mem_pool_size | 1048576
| innodb_buffer_pool_size | 8388608
| innodb_data_file_path | ibdata1:10M:autoextend
| innodb_data_home_dir |
| innodb_file_io_threads | 4
| innodb_force_recovery | 0
| innodb_thread_concurrency | 8
| innodb_flush_log_at_trx_commit | 1
| innodb_fast_shutdown | ON
| innodb_flush_method |
| innodb_lock_wait_timeout | 50
| 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_mirrored_log_groups | 1
| innodb_max_dirty_pages_pct | 90
| interactive_timeout | 28800
| join_buffer_size | 131072
| key_buffer_size | 8388600
| language | E:\ZFSERVER\MYSQL\share\english\
| large_files_support | ON
| local_infile | ON
| log | OFF
| log_update | OFF
| log_bin | OFF
| log_slave_updates | OFF
| log_slow_queries | OFF
| log_warnings | OFF
| long_query_time | 10
| low_priority_updates | OFF
| lower_case_table_names | ON
| max_allowed_packet | 1048576
| max_binlog_cache_size | 4294967295
| max_binlog_size | 1073741824 |
| max_connections | 100 |
| max_connect_errors | 10 |
| max_delayed_threads | 20 |
| max_heap_table_size | 16777216 |
| max_join_size | 4294967295 |
| max_relay_log_size | 0 |
| max_seeks_for_key | 4294967295 |
| max_sort_length | 1024 |
| max_user_connections | 0 |
| max_tmp_tables | 32 |
| max_write_lock_count | 4294967295 |
| myisam_max_extra_sort_file_size | 268435456 |
| myisam_max_sort_file_size | 2147483647 |
| myisam_repair_threads | 1 |
| myisam_recover_options | OFF |
| myisam_sort_buffer_size | 8388608 |
| named_pipe | OFF |
| net_buffer_length | 16384 |
| net_read_timeout | 30 |
| net_retry_count | 10 |
| net_write_timeout | 60 |
| new | OFF |
| open_files_limit | 0 |
| pid_file | E:\ZFSERVER\MYSQL\data\orientxp.pid |
| log_error | .\orientxp.err |
| port | 3306 |
| protocol_version | 10 |
| query_alloc_block_size | 8192 |
| query_cache_limit | 1048576 |
| query_cache_size | 0 |
| query_cache_type | ON |
| query_prealloc_size | 8192 |
| range_alloc_block_size | 2048 |
| read_buffer_size | 131072 |
| read_only | OFF |
| read_rnd_buffer_size | 262144 |
| rpl_recovery_rank | 0 |
| server_id | 0 |
| slave_net_timeout | 3600 |
| skip_external_locking | ON |
| skip_networking | OFF |
| skip_show_database | OFF |
| slow_launch_time | 2 |
| sort_buffer_size | 2097144 |
| sql_mode | 0 |
| table_cache | 64 |
| table_type | MYISAM |
| thread_cache_size | 0 |
| thread_stack | 196608 |
| tx_isolation | REPEATABLE-READ |
| timezone | Egypt Standard Time |
| tmp_table_size | 33554432 |
| tmpdir | C:\WINDOWS\TEMP\ |
| transaction_alloc_block_size | 8192 |
| transaction_prealloc_size | 4096 |
| version | 4.0.17-nt |
| version_comment | Source distribution |
| wait_timeout | 28800 |
mysql> SHOW STATUS;
+-------------------------+----------+
| Variable_name | Value |
+-------------------------+----------+
| Aborted_clients | 36 |
| Aborted_connects | 0 |
| Bytes_received | 41352179 |
| Bytes_sent | 84359720 |
| Com_admin_commands | 181 |
| Com_alter_table | 2 |
| Com_analyze | 0 |
| Com_backup_table | 0 |
| Com_begin | 0 |
| Com_change_db | 64 |
| Com_change_master | 0 |
| Com_check | 1 |
| Com_commit | 0 |
| Com_create_db | 0 |
| Com_create_function | 0 |
| Com_create_index | 0 |
| Com_create_table | 252 |
| Com_delete | 70 |
| Com_delete_multi | 0 |
| Com_drop_db | 0 |
| Com_drop_function | 0 |
| Com_drop_index | 0 |
| Com_drop_table | 276 |
| Com_flush | 0 |
| Com_grant | 0 |
| Com_ha_close | 0 |
| Com_ha_open | 0 |
| Com_ha_read | 0 |
| Com_insert | 292241 |
| 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 | 2 |
| Com_purge | 0 |
| Com_rename_table | 0 |
| Com_repair | 9 |
| Com_replace | 6 |
| Com_replace_select | 0 |
| Com_reset | 0 |
| Com_restore_table | 0 |
| Com_revoke | 0 |
| Com_rollback | 0 |
| Com_savepoint | 0 |
| Com_select | 15736 |
| Com_set_option | 12 |
| Com_show_binlog_events | 0 |
| Com_show_binlogs | 0 |
| Com_show_create | 25 |
| Com_show_databases | 27 |
| Com_show_fields | 2760 |
| Com_show_grants | 0 |
| Com_show_keys | 9 |
| Com_show_logs | 0 |
| Com_show_master_status | 0 |
| Com_show_new_master | 0 |
| Com_show_open_tables | 0 |
| Com_show_processlist | 2 |
| Com_show_slave_hosts | 0 |
| Com_show_slave_status | 0 |
| Com_show_status | 1934 |
| Com_show_innodb_status | 0 |
| Com_show_tables | 57 |
| Com_show_variables | 59 |
| Com_slave_start | 0 |
| Com_slave_stop | 0 |
| Com_truncate | 0 |
| Com_unlock_tables | 0 |
| Com_update | 2138 |
| Connections | 207 |
| Created_tmp_disk_tables | 0 |
| Created_tmp_tables | 0 |
| Created_tmp_files | 0 |
| Delayed_insert_threads | 0 |
| Delayed_writes | 0 |
| Delayed_errors | 0 |
| Flush_commands | 1 |
| Handler_commit | 4 |
| Handler_delete | 1 |
| Handler_read_first | 3363 |
| Handler_read_key | 36141 |
| Handler_read_next | 68771 |
| Handler_read_prev | 0 |
| Handler_read_rnd | 132 |
| Handler_read_rnd_next | 3039359 |
| Handler_rollback | 63 |
| Handler_update | 10 |
| Handler_write | 292202 |
| Key_blocks_used | 2157 |
| Key_read_requests | 459308 |
| Key_reads | 352 |
| Key_write_requests | 197090 |
| Key_writes | 197085 |
| Max_used_connections | 24 |
| Not_flushed_key_blocks | 0 |
| Not_flushed_delayed_rows | 0 |
| Open_tables | 0 |
| Open_files | 0 |
| Open_streams | 0 |
| Opened_tables | 1906 |
| Questions | 315904 |
| Qcache_queries_in_cache | 0 |
| Qcache_inserts | 0 |
| Qcache_hits | 0 |
| Qcache_lowmem_prunes | 0 |
| Qcache_not_cached | 0 |
| Qcache_free_memory | 0 |
| Qcache_free_blocks | 0 |
| Qcache_total_blocks | 0 |
| Rpl_status | NULL |
| Select_full_join | 0 |
| Select_full_range_join | 0 |
| Select_range | 129 |
| Select_range_check | 0 |
| Select_scan | 2691 |
| Slave_open_temp_tables | 0 |
| Slave_running | OFF |
| Slow_launch_threads | 0 |
| Slow_queries | 0 |
| Sort_merge_passes | 0 |
| Sort_range | 22 |
| Sort_rows | 132 |
| Sort_scan | 6 |
| Table_locks_immediate | 311455 |
| Table_locks_waited | 0 |
| Threads_cached | 0 |
| Threads_created | 206 |
| Threads_connected | 4 |
| Threads_running | 1 |
| Uptime | 21423 |
+-------------------------+----------+
select che from arenaa where mapid=81513 and status=1
select nameb from arenac where mapid=81529
DELETE FROM arenaa where mapid=81529
select nameb from arenac where mapid=81530
select che from arenaa where mapid=81501 and status=2
REPLACE INTO arenac set mapid=\"81502\",nameb=\"%user_name\"
select namea from arenaa where mapid=81505
-- ----------------------------
-- Table structure for arenaa
-- ----------------------------
DROP TABLE IF EXISTS `arenaa`;
CREATE TABLE `arenaa` (
`mapid` int(100) NOT NULL default '0',
`namea` varchar(100) NOT NULL default '0',
`nameb` varchar(100) NOT NULL default '0',
`status` int(100) NOT NULL default '0',
`che` int(100) NOT NULL default '1',
UNIQUE KEY `imapid` (`mapid`)
) TYPE=MyISAM;
-- ----------------------------
-- Records of arenaa
-- ----------------------------
#############################################
SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for arenac
-- ----------------------------
DROP TABLE IF EXISTS `arenac`;
CREATE TABLE `arenac` (
`mapid` int(100) NOT NULL default '0',
`nameb` varchar(100) NOT NULL default '0',
UNIQUE KEY `imapid` (`mapid`)
) TYPE=MyISAM;
-- ----------------------------
-- Records of arenac
-- ----------------------------
thanks for reading ,,
