Details
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Bug
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Status: Open (View Workflow)
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Minor
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Resolution: Unresolved
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5.5.32
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None
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Linux mysql55 2.6.32-358.el6.x86_64
Scientific Linux release 6.4 (Carbon)
Description
I have had ramdisk for "tmpdir". While temporary table use more space than available on tmpdir and query is killed, mysql will crash with "mysqld got signal 11"
For example, generic testing table:
MariaDB [cswiki]> show create table langlinks\G; |
Table: langlinks |
Create Table: CREATE TABLE `langlinks` ( |
`ll_from` int(8) unsigned NOT NULL DEFAULT '0', |
`ll_lang` varbinary(20) NOT NULL DEFAULT '', |
`ll_title` varbinary(255) NOT NULL DEFAULT '', |
UNIQUE KEY `ll_from` (`ll_from`,`ll_lang`), |
KEY `ll_lang` (`ll_lang`,`ll_title`) |
) ENGINE=MyISAM DEFAULT CHARSET=ascii COMMENT='Denni prehledy poctu nabidek podle licenci' |
1 row in set (0.00 sec) |
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CREATE TEMPORARY TABLE IF NOT EXISTS TEMPTABLES.test LIKE langlinks; |
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INSERT INTO TEMPTABLES.test SELECT t.ll_from, t.ll_lang, t.ll_title from langlinks t; |
Now, free space is exhausted and i have got:
130801 16:28:31 [ERROR] mysqld: Incorrect key file for table '/tmp/#sql6ecc_2_0.MYI'; try to repair it
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130801 16:28:31 [ERROR] Got an error from unknown thread, /home/buildbot/buildbot/build/mariadb-5.5.32/storage/myisam/mi_write.c:224
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130801 16:28:31 [Warning] mysqld: Disk is full writing '/tmp/#sql6ecc_2_0.MYI' (Errcode: 28). Waiting for someone to free space... (Expect up to 60 secs delay for server to continue after freeing disk space)
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130801 16:28:31 [Warning] mysqld: Retry in 60 secs. Message reprinted in 600 secs
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Now, i killed query by ctrl+c and everything seems ok. But, exactly one minutes after space exhaustion, db crashed with trace:
130801 16:29:31 [ERROR] mysqld got signal 11 ;
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This could be because you hit a bug. It is also possible that this binary
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or one of the libraries it was linked against is corrupt, improperly built,
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or misconfigured. This error can also be caused by malfunctioning hardware.
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To report this bug, see http://kb.askmonty.org/en/reporting-bugs
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We will try our best to scrape up some info that will hopefully help
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diagnose the problem, but since we have already crashed,
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something is definitely wrong and this may fail.
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Server version: 5.5.32-MariaDB
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key_buffer_size=134217728
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read_buffer_size=131072
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max_used_connections=3
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max_threads=153
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thread_count=2
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It is possible that mysqld could use up to
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key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 466714 K bytes of memory
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Hope that's ok; if not, decrease some variables in the equation.
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Thread pointer: 0x0x2632990
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Attempting backtrace. You can use the following information to find out
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where mysqld died. If you see no messages after this, something went
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terribly wrong...
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stack_bottom = 0x7ff3580b3d78 thread_stack 0x48000
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??:0(my_print_stacktrace)[0xa8631e]
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??:0(handle_fatal_signal)[0x6cdd0b]
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??:0(??)[0x7ff35d973500]
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??:0(flush_key_blocks_int)[0xa74856]
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??:0(flush_simple_key_cache_blocks)[0xa75a41]
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??:0(mi_repair_by_sort)[0xa21c96]
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??:0(ha_myisam::repair(THD*, st_handler_check_param&, bool))[0xa15cba]
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??:0(ha_myisam::enable_indexes(unsigned int))[0xa15e71]
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??:0(ha_myisam::end_bulk_insert())[0xa12be9]
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??:0(select_insert::abort_result_set())[0x56e475]
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??:0(handle_select(THD*, LEX*, select_result*, unsigned long))[0x5d9ddf]
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??:0(mysql_execute_command(THD*))[0x58d849]
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??:0(mysql_parse(THD*, char*, unsigned int, Parser_state*))[0x58e369]
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??:0(dispatch_command(enum_server_command, THD*, char*, unsigned int))[0x58f790]
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??:0(do_handle_one_connection(THD*))[0x647cdf]
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??:0(handle_one_connection)[0x647d7c]
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??:0(??)[0x7ff35d96b851]
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??:0(??)[0x7ff35c2df90d]
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Trying to get some variables.
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Some pointers may be invalid and cause the dump to abort.
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Query (0x7ff328004bd8): is an invalid pointer
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Connection ID (thread ID): 2
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Status: KILL_QUERY
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Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=off
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This was purely testing environment with almost empty config file, but on production environment on 5.5.31 is the same problem.
Attachments
Issue Links
- relates to
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MDEV-17307 "Incorrect key file for table" is produced instead of "No space left on device" when tmpdir gets full during operation on MyISAM table
- Open
- links to