[rt-users] MySQL Server has Gone a way; No ticket created but e-mail is sent
Nick Metrowsky
nmetrowsky at digitalglobe.com
Fri Mar 3 16:42:03 EST 2006
Hi Chaim,
Thank you for writing. Please find below the output of my MySQL variables from mysqladmin.
Thank you for your help in advance.
Take care!
Nick
+---------------------------------+----------------------------------------+
| Variable_name | Value |
+---------------------------------+----------------------------------------+
| back_log | 50 |
| basedir | /usr/local/mysql/ |
| 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/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/var/ |
| 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 | NO |
| 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 | NO |
| 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 | 16777216 |
| key_cache_age_threshold | 300 |
| key_cache_block_size | 1024 |
| key_cache_division_limit | 100 |
| language | /usr/local/mysql/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 | 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 | 100 |
| max_delayed_threads | 20 |
| max_error_count | 64 |
| max_heap_table_size | 16777216 |
| max_insert_delayed_threads | 20 |
| max_join_size | 4294967295 |
| 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 | OFF |
| myisam_repair_threads | 1 |
| myisam_sort_buffer_size | 8388608 |
| myisam_stats_method | nulls_unequal |
| net_buffer_length | 8192 |
| net_read_timeout | 30 |
| net_retry_count | 10 |
| net_write_timeout | 60 |
| new | OFF |
| old_passwords | OFF |
| open_files_limit | 1024 |
| pid_file | /usr/local/mysql/var/mysqld.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 | 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 | 520192 |
| 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 | 524280 |
| sql_mode | |
| sql_notes | ON |
| sql_warnings | ON |
| storage_engine | MyISAM |
| sync_binlog | 0 |
| sync_frm | ON |
| sync_replication | 0 |
| sync_replication_slave_id | 0 |
| sync_replication_timeout | 0 |
| system_time_zone | GMT |
| table_cache | 64 |
| table_type | MyISAM |
| thread_cache_size | 0 |
| thread_stack | 196608 |
| 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 | 4.1.15-log |
| version_comment | Source distribution |
| version_compile_machine | i686 |
| version_compile_os | pc-linux-gnu |
| wait_timeout | 28800 |
+---------------------------------+----------------------------------------+
---------------------------------------------------------------------------------
Nick Metrowsky
Consulting System Administrator
303-684-4785 Office
303-684-4100 Fax
nmetrowsky at digitalglobe.com
DigitalGlobe ®, An Imaging and Information Company
http://www.digitalglobe.com
---------------------------------------------------------------------------------
-----Original Message-----
From: Chaim Rieger [mailto:chaim.rieger at gmail.com]
Sent: Friday, March 03, 2006 2:32 PM
To: Nick Metrowsky
Cc: rt-users at lists.bestpractical.com
Subject: Re: [rt-users] MySQL Server has Gone a way; No ticket created but e-mail is sent
Nick Metrowsky wrote:
> Hi Everyone,
>
>
>
> A few weeks ago I sent in a message similar to the problem I am about to
> describe. So, I hope someone can tell me a work around, as this problem
> is very annoying.
>
>
>
> A user uses the web interface to enter a ticket, as far as the user is
> concerned the ticket was entered properly and is happily on its way of
> being taken care of. It looks like the ticket made it because e-mails
> are sent to the proper parties and everything is all right with the
> world. Like the clichés?
>
>
>
> Anyway, behind the scenes the ticket never makes it in the database. The
> only record of this happening is that in /var/log/.messages (we are
> using linux), several errors messages are generated starting with "MySQL
> server has gone away". So, all the inserts and updates going to the
> database are dropped and no ticket is anywhere to be found.
>
>
>
> The worse part about this error, it only happens less than 1% of the
> time.(35 times out of 3500 tickets created).
>
>
>
> I have check the database, web server and other system logs and there is
> nothing indicating a problem. I also checked the database structure and
> tables in MySQL.
>
>
>
> I am running RT 3.4.4 with RTx::SearchBuilder 1.39, mysql 4.1.15, RTFM
> 2.1.40, RTx::AssetTracker 1.2.2, RTx::RightsMatrix 0.02.05,
> RTx::Statistics 1.18, Apache 2.0.55, mod_perl2, perl 5.8.7. The only
> thing to add is that I upgraded from RT V2 back in December.
>
>
>
> The bottom line, short of trying to figure out RTx::SearchBuilder, I
> have trie deverything I can think of.
>
>
i would not consider this to ba a rt issue, it looks like your mysql is
dropping the connections
can you post anything interesting you have in /etc/my.cnf or the output
of mysqladmin variables
thanx
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