民众
我有一张表（billing_data），有大约6000万条记录。表引擎是MyISAM。我们有一个存储过程，它将每10-15分钟读取一次csv文件并在临时表中转储，然后将其插入此表（billing_data）。此表中插入了大量记录。
我们尝试在同一个表（以及连接中的其他表）上运行如下的查询以生成报告。
"select b.destination,b.release_cause_protocol_stack,b.binary_value_protocol_stack,b.release_cause from billing_datas b inner join (select id from carriermasters where id in (99, 100, 101) ) c1 on b.carrierid_customer=c1.idinner join (select id from technicalprofiles where id in (83, 274, 84, 416)) t1 on b.technical_profileid_customer=t1.id inner join (select trunk from trunks where trunk in (90409, 90310, 30230, 30313) ) tr1 on b.origination_trunkid=tr1.trunk inner join (select id from carriermasters where id in (214, 215, 59, 60, 62, 292, 63, 216, 64, 61, 217, 274, 58) ) c2 on b.carrierid_supplier=c2.id inner join (select id from technicalprofiles where id in (223, 55, 224, 56, 225, 57, 226, 58, 227, 228, 229, 230, 393, 394, 395, 59, 231, 232, 233, 460, 234)) t2 on b.technical_profileid_supplier=t2.id inner join (select trunk from trunks where trunk in (90106, 30249, 90249, 30250, 90250, 90445, 30409, 90446, 30410, 30294, 90363, 30293, 90293, 30175, 30146, 90146, 90435, 90049, 30177, 90294, 90130, 30130, 90189, 30145, 90145, 90389, 30400, 90429, 90121, 90159)) tr2 on b.supplierid=tr2.trunk where b.start_time_date between '2013-08-02 00:00:00' and '2013-08-02 23:59:59' order by b.start_time_date asc"
不是情景
a）如果我们停止cron作业以在billing_datas表中插入数据，则上述查询大约需要40分钟以上。
b）如果cron作业正在运行（从文件中插入数据）到临时表，然后到billing_data。那时上面的查询将永远运行。
我不确定我哪里出错了。
我们还检查了索引及其罚款。
Mysql查询：显示变量
automatic_sp_privileges ON
back_log 50
big_tables OFF
binlog_cache_size 32768
binlog_direct_non_transactional_updates OFF
binlog_format STATEMENT
bulk_insert_buffer_size 8388608
completion_type 0
concurrent_insert 1
connect_timeout 10
default_week_format 0
delay_key_write ON
delayed_insert_limit 100
delayed_insert_timeout 300
delayed_queue_size 1000
div_precision_increment 4
engine_condition_pushdown ON
event_scheduler OFF
flush OFF
flush_time 0
foreign_key_checks ON
ft_query_expansion_limit 20
ignore_builtin_innodb OFF
innodb_adaptive_hash_index ON
innodb_additional_mem_pool_size 1048576
innodb_autoextend_increment 8
innodb_autoinc_lock_mode 1
innodb_buffer_pool_size 8388608
innodb_checksums ON
innodb_commit_concurrency 0
innodb_concurrency_tickets 500
innodb_data_file_path ibdata1:10M:autoextend
innodb_data_home_dir
innodb_doublewrite ON
innodb_fast_shutdown 1
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_buffer_size 1048576
innodb_log_file_size 5242880
innodb_log_files_in_group 2
innodb_max_dirty_pages_pct 90
innodb_max_purge_lag 0
innodb_mirrored_log_groups 1
innodb_open_files 300
innodb_rollback_on_timeout OFF
innodb_stats_method nulls_equal
innodb_stats_on_metadata ON
innodb_support_xa ON
innodb_sync_spin_loops 20
innodb_table_locks ON
innodb_thread_concurrency 8
innodb_thread_sleep_delay 10000
innodb_use_legacy_cardinality_algorithm ON
insert_id 0
interactive_timeout 28800
join_buffer_size 131072
keep_files_on_create OFF
key_buffer_size 8384512
key_cache_age_threshold 300
key_cache_block_size 1024
key_cache_division_limit 100
large_files_support ON
large_page_size 0
large_pages OFF
last_insert_id 0
local_infile ON
locked_in_memory OFF
log OFF
log_bin OFF
log_bin_trust_function_creators OFF
log_bin_trust_routine_creators OFF
long_query_time 10
low_priority_updates OFF
max_allowed_packet 1048576
max_binlog_cache_size 1.84467E+19
max_binlog_size 1073741824
max_connect_errors 10
max_connections 151
max_delayed_threads 20
max_error_count 64
max_heap_table_size 16777216
max_insert_delayed_threads 20
max_join_size 1.84467E+19
max_length_for_sort_data 1024
max_long_data_size 1048576
max_prepared_stmt_count 16382
max_relay_log_size 0
max_seeks_for_key 1.84467E+19
max_sort_length 1024
max_sp_recursion_depth 0
max_tmp_tables 32
max_user_connections 0
max_write_lock_count 1.84467E+19
min_examined_row_limit 0
multi_range_count 256
myisam_data_pointer_size 6
myisam_max_sort_file_size 9.22337E+18
myisam_mmap_size 1.84467E+19
myisam_recover_options OFF
myisam_repair_threads 1
myisam_sort_buffer_size 8388608
myisam_stats_method nulls_unequal
myisam_use_mmap OFF
net_buffer_length 16384
net_read_timeout 30
net_retry_count 10
net_write_timeout 60
open_files_limit 1024
optimizer_prune_level 1
optimizer_search_depth 62
optimizer_switch index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on
preload_buffer_size 32768
pseudo_thread_id 7256
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 4096
read_buffer_size 131072
read_only OFF
read_rnd_buffer_size 262144
skip_external_locking ON
slow_launch_time 2
sort_buffer_size 2097144
sql_auto_is_null ON
sql_big_selects ON
sql_big_tables OFF
sql_buffer_result OFF
sql_log_bin ON
sql_log_off OFF
sql_log_update ON
sql_low_priority_updates OFF
sql_max_join_size 1.84467E+19
sql_quote_show_create ON
sql_safe_updates OFF
sql_select_limit 1.84467E+19
storage_engine MyISAM
sync_binlog 0
sync_frm ON
table_definition_cache 256
table_lock_wait_timeout 50
table_open_cache 64
table_type MyISAM
thread_cache_size 0
thread_handling one-thread-per-connection
thread_stack 262144
timed_mutexes OFF
tmp_table_size 16777216
transaction_alloc_block_size 8192
transaction_prealloc_size 4096
unique_checks ON
updatable_views_with_limit YES
version 05/01/69
version_compile_os redhat-linux-gnu
wait_timeout 28800
答案 0 :(得分：1)
SELECT b.destination
, b.release_cause_protocol_stack
, b.binary_value_protocol_stack
, b.release_cause
FROM billing_datas b
JOIN carriermasters customer
ON b.carrierid_customer = customer.id
JOIN technicalprofiles tpc
ON b.technical_profileid_customer = tpc.id
JOIN trunks kc
ON b.origination_trunkid = kc.trunk
JOIN carriermasters supplier
ON b.carrierid_supplier = supplier.id
JOIN technicalprofiles tps
ON b.technical_profileid_supplier = tps.id
JOIN trunks ks
ON b.supplierid = ks.trunk
WHERE b.start_time_date BETWEEN '2013-08-02 00:00:00' AND '2013-08-02 23:59:59'
AND customer.id IN (99, 100, 101)
AND tpc.id IN (83, 274, 84, 416)
AND kc.trunk IN (90409, 90310, 30230, 30313)
AND supplier.id IN (214, 215, 59, 60, 62, 292, 63, 216, 64, 61, 217, 274, 58)
AND tps.id IN (223, 55, 224, 56, 225, 57, 226, 58, 227, 228, 229, 230, 393, 394, 395, 59, 231, 232, 233, 460, 234)
AND ks.trunk IN (90106, 30249, 90249, 30250, 90250, 90445, 30409, 90446, 30410, 30294, 90363, 30293, 90293, 30175, 30146, 90146, 90435, 90049, 30177, 90294, 90130, 30130, 90189, 30145, 90145, 90389, 30400, 90429, 90121, 90159)
ORDER
BY b.start_time_date ASC;