Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Not a Bug
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5.5.33a
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None
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None
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None
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FreeBSD 9.1-RELEASE-p4
Description
sometimes it fails, not each time:
$ /usr/local/bin/mysqldump -a --add-drop-table --skip-lock-tables $DB_NAME `/bin/cat tables.lst` | /usr/bin/bzip2 -c >dump-$PFX.dump.bz2
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mysqldump: Couldn't execute 'SELECT /*!40001 SQL_NO_CACHE */ * FROM `gals_kw2_inno`': The SELECT would examine more than MAX_JOIN_SIZE rows; check your WHERE and use SET SQL_BIG_SELECTS=1 or SET MAX_JOIN_SIZE=# if the SELECT is okay (1104)
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+ the problem, that sql_big_selects=OFF by default.
on mysql start:
MariaDB [dfrot]> show variables like '%join%'; |
+-------------------------+----------+ |
| Variable_name | Value |
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+-------------------------+----------+ |
| join_buffer_size | 33554432 |
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| join_buffer_space_limit | 2097152 |
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| join_cache_level | 2 |
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| max_join_size | 16777216 |
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| sql_max_join_size | 16777216 |
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+-------------------------+----------+ |
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MariaDB [dfrot]> show variables like '%big%'; |
+-----------------+-------+ |
| Variable_name | Value |
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+-----------------+-------+ |
| big_tables | OFF | |
| sql_big_selects | OFF | |
| sql_big_tables | OFF | |
+-----------------+-------+ |
MariaDB [dfrot]> show table status like 'gals_kw2_inno'; |
+---------------+--------+---------+------------+----------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+-------------+------------+-------------------+----------+----------------+---------+ |
| 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 | |
+---------------+--------+---------+------------+----------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+-------------+------------+-------------------+----------+----------------+---------+ |
| gals_kw2_inno | InnoDB | 10 | Compact | 93515627 | 40 | 3778691072 | 0 | 1797046272 | 5242880 | NULL | 2013-08-21 14:42:57 | NULL | NULL | latin1_swedish_ci | NULL | | | |
+---------------+--------+---------+------------+----------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+-------------+------------+-------------------+----------+----------------+---------+ |
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MariaDB [dfrot]> select count(gid) from gals_kw2_inno; |
+------------+ |
| count(gid) | |
+------------+ |
| 80122933 |
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+------------+ |
1 row in set (38.10 sec) |
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my.cnf:
# The MySQL server
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[mysqld]
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#innodb_force_recovery = 6
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user=mysql
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bind-address=127.0.0.1
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port = 3306
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socket = /tmp/mysql.sock
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#skip-locking
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myisam-recover
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#safe_show_database
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skip-name-resolve
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innodb_file_per_table=1
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myisam_sort_buffer_size = 512M
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max_allowed_packet = 16M
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table_cache = 2000
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thread_cache = 10
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query_cache_size= 256M
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query_cache_type= 1
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query_cache_limit = 256M
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# Try number of CPU's*2 for thread_concurrency
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thread_concurrency = 8
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# flush all tables every day
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flush_time = 86400
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interactive_timeout = 600
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max_connections = 200
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max_connect_errors = 1000
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max_user_connections = 1000
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wait_timeout = 300
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#innodb_force_recovery=1
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back_log = 120
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max_tmp_tables=1500
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default_storage_engine=myisam
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innodb_buffer_pool_size= 6144M
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key_buffer_size = 4096M
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sort_buffer_size = 4M
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read_buffer_size = 2M
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max_heap_table_size = 6144M
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tmp_table_size = 6144M
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join_buffer_size = 32M
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aria-sort-buffer-size=512M
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thread-handling=pool-of-threads
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thread-pool-size=16
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innodb_log_file_size=768M
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innodb_log_buffer_size=8M
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innodb_flush_log_at_trx_commit=2
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innodb_flush_method = O_DIRECT
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##innodb_force_recovery=1
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innodb_read_io_threads=64
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innodb_write_io_threads=64
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innodb_io_capacity=20000 #(set this to your device's IOPs)
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#long_query_time=1
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#log_slow_queries=/home/logs/mysql_slow.log
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#log_queries_not_using_indexes=1
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tmpdir = /var/tmp_md
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#tmpdir = /home/tmp
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table_open_cache = 2048
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binlog_cache_size = 1M
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read_rnd_buffer_size = 16M
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thread_cache_size = 16
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innodb_additional_mem_pool_size = 16M
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#innodb_read_io_threads=2
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#innodb_write_io_threads=2
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innodb_lock_wait_timeout = 120
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[mysqldump]
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max_allowed_packet = 16M
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[myisamchk]
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key_buffer_size=512M
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sort_buffer_size=512M
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read_buffer_size=1M
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write_buffer_size=1M
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