RE: Innodb, MySQL 5.5.28 - Would an incorrect setting in my.cnf cause mysqld to randomly crash on high load?
Nothing looks bad. 96G for the buffer_pool is bigger than I have experienced, but I know of no reason for it to fail (given that you have 128GB of RAM). -Original Message- From: Tom [mailto:livefortheda...@gmail.com] Sent: Wednesday, November 21, 2012 5:17 PM To: mysql@lists.mysql.com Subject: Innodb, MySQL 5.5.28 - Would an incorrect setting in my.cnf cause mysqld to randomly crash on high load? We have a high-end server, 128GB RAM, 32 Core , Xeon, SSD RAID 10 - running Ubuntu 12.04 with MySQL 5.5.28 . Doing random imports to large InnoDB tables, over 50+ gigs, randomly after a few hours of heavy load, mysql does a Signal 11 and crashes. We have tried to move hardware. Doing a full dump (but not a restore yet) gives no issues. Usually on corrupted tables, a dump would fail no? Below is the crash log and my.cnf . --- 12:45:4 UTC - mysqld got signal 11 ; This could be because you hit a bug. It is also possible that this binary or one of the libraries it was linked against is corrupt, improperly built, or misconfigured. This error can also be caused by malfunctioning hardware. We will try our best to scrape up some info that will hopefully help diagnose the problem, but since we have already crashed, something is definitely wrong and this may fail. key_buffer_size=536870912 read_buffer_size=131072 max_used_connections=324 max_threads=200 thread_count=308 connection_count=308 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 965187 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. Thread pointer: 0x7fc7eb1b5040 Attempting backtrace. You can use the following information to find out where mysqld died. If you see no messages after this, something went terribly wrong... stack_bottom = 7fadf6abfe60 thread_stack 0x3 /usr/sbin/mysqld(my_print_stacktrace+0x29)[0x7fc758522759] /usr/sbin/mysqld(handle_fatal_signal+0x483)[0x7fc7583e9ae3] /lib/x86_64-linux-gnu/libpthread.so.0(+0xfcb0)[0x7fc75713bcb0] /usr/sbin/mysqld(+0x6671b0)[0x7fc75863a1b0] /usr/sbin/mysqld(+0x61d6b9)[0x7fc7585f06b9] /usr/sbin/mysqld(+0x630d12)[0x7fc758603d12] /usr/sbin/mysqld(+0x6319c2)[0x7fc7586049c2] /usr/sbin/mysqld(+0x631d85)[0x7fc758604d85] /usr/sbin/mysqld(+0x626e7d)[0x7fc7585f9e7d] /usr/sbin/mysqld(+0x633cea)[0x7fc758606cea] /usr/sbin/mysqld(+0x6347e2)[0x7fc7586077e2] /usr/sbin/mysqld(+0x624426)[0x7fc7585f7426] /usr/sbin/mysqld(+0x610871)[0x7fc7585e3871] /usr/sbin/mysqld(+0x5d4cb0)[0x7fc7585a7cb0] /usr/sbin/mysqld(+0x5b7c9c)[0x7fc75858ac9c] /usr/sbin/mysqld(_ZN7handler21read_multi_range_nextEPP18st_key_multi_ra nge+0x24)[0x7fc7583e9fe4] /usr/sbin/mysqld(_ZN18QUICK_RANGE_SELECT8get_nextEv+0x3c)[0x7fc7584a3c8 c] /usr/sbin/mysqld(+0x4e9195)[0x7fc7584bc195] /usr/sbin/mysqld(_Z10sub_selectP4JOINP13st_join_tableb+0x71)[0x7fc7582f 1741] /usr/sbin/mysqld(+0x32f025)[0x7fc758302025] /usr/sbin/mysqld(_ZN4JOIN4execEv+0x4a5)[0x7fc758311155] /usr/sbin/mysqld(_Z12mysql_selectP3THDPPP4ItemP10TABLE_LISTjR4ListIS1_E S2_jP8st_orderSB_S2_SB_yP13select_resultP18st_select_lex_unitP13st_sele ct_lex+0x130)[0x7fc75830d000] /usr/sbin/mysqld(_Z13handle_selectP3THDP3LEXP13select_resultm+0x17c)[0x 7fc758312f5c] /usr/sbin/mysqld(+0x2f66b4)[0x7fc7582c96b4] /usr/sbin/mysqld(_Z21mysql_execute_commandP3THD+0x16d8)[0x7fc7582d1118] /usr/sbin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x10f)[0x7fc758 2d5daf] /usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x13 80)[0x7fc7582d7200] /usr/sbin/mysqld(_Z24do_handle_one_connectionP3THD+0x1bd)[0x7fc75837b7a d] /usr/sbin/mysqld(handle_one_connection+0x50)[0x7fc75837b810] /lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a)[0x7fc757133e9a] /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7fc756864cbd] Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (7faa4c18e440): is an invalid pointer Connection ID (thread ID): 2286 Status: NOT_KILLED The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains information that should help you find out what is causing the crash. 121120 12:48:48 [Note] Plugin 'FEDERATED' is disabled. 121120 12:48:48 InnoDB: The InnoDB memory heap is disabled 121120 12:48:48 InnoDB: Mutexes and rw_locks use GCC atomic builtins 121120 12:48:48 InnoDB: Compressed tables use zlib 1.2.3.4 121120 12:48:48 InnoDB: Initializing buffer pool, size = 96.0G 121120 12:48:56 InnoDB: Completed initialization of buffer pool 121120 12:48:57 InnoDB: highest supported file format is Barracuda. InnoDB: Log scan progressed past the checkpoint lsn 1341738337497 121120 12:48:58 InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd files... InnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer... InnoDB: Doing recovery: scanned up to log
Re: Innodb, MySQL 5.5.28 - Would an incorrect setting in my.cnf cause mysqld to randomly crash on high load?
Hi Tom, I am assuming nothing relevant shows up in dmesg, right? I have experienced random crashes like that and most of them turned to be HW issues - hard disk and memory banks related. Is it a HW RAID? Have you tried looking at the controller logs? (Megacli). And yes, corrupted tables would fail when restoring them (or even when backuping them). Good luck! Manuel 2012/11/26, Rick James rja...@yahoo-inc.com: Nothing looks bad. 96G for the buffer_pool is bigger than I have experienced, but I know of no reason for it to fail (given that you have 128GB of RAM). -Original Message- From: Tom [mailto:livefortheda...@gmail.com] Sent: Wednesday, November 21, 2012 5:17 PM To: mysql@lists.mysql.com Subject: Innodb, MySQL 5.5.28 - Would an incorrect setting in my.cnf cause mysqld to randomly crash on high load? We have a high-end server, 128GB RAM, 32 Core , Xeon, SSD RAID 10 - running Ubuntu 12.04 with MySQL 5.5.28 . Doing random imports to large InnoDB tables, over 50+ gigs, randomly after a few hours of heavy load, mysql does a Signal 11 and crashes. We have tried to move hardware. Doing a full dump (but not a restore yet) gives no issues. Usually on corrupted tables, a dump would fail no? Below is the crash log and my.cnf . --- 12:45:4 UTC - mysqld got signal 11 ; This could be because you hit a bug. It is also possible that this binary or one of the libraries it was linked against is corrupt, improperly built, or misconfigured. This error can also be caused by malfunctioning hardware. We will try our best to scrape up some info that will hopefully help diagnose the problem, but since we have already crashed, something is definitely wrong and this may fail. key_buffer_size=536870912 read_buffer_size=131072 max_used_connections=324 max_threads=200 thread_count=308 connection_count=308 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 965187 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. Thread pointer: 0x7fc7eb1b5040 Attempting backtrace. You can use the following information to find out where mysqld died. If you see no messages after this, something went terribly wrong... stack_bottom = 7fadf6abfe60 thread_stack 0x3 /usr/sbin/mysqld(my_print_stacktrace+0x29)[0x7fc758522759] /usr/sbin/mysqld(handle_fatal_signal+0x483)[0x7fc7583e9ae3] /lib/x86_64-linux-gnu/libpthread.so.0(+0xfcb0)[0x7fc75713bcb0] /usr/sbin/mysqld(+0x6671b0)[0x7fc75863a1b0] /usr/sbin/mysqld(+0x61d6b9)[0x7fc7585f06b9] /usr/sbin/mysqld(+0x630d12)[0x7fc758603d12] /usr/sbin/mysqld(+0x6319c2)[0x7fc7586049c2] /usr/sbin/mysqld(+0x631d85)[0x7fc758604d85] /usr/sbin/mysqld(+0x626e7d)[0x7fc7585f9e7d] /usr/sbin/mysqld(+0x633cea)[0x7fc758606cea] /usr/sbin/mysqld(+0x6347e2)[0x7fc7586077e2] /usr/sbin/mysqld(+0x624426)[0x7fc7585f7426] /usr/sbin/mysqld(+0x610871)[0x7fc7585e3871] /usr/sbin/mysqld(+0x5d4cb0)[0x7fc7585a7cb0] /usr/sbin/mysqld(+0x5b7c9c)[0x7fc75858ac9c] /usr/sbin/mysqld(_ZN7handler21read_multi_range_nextEPP18st_key_multi_ra nge+0x24)[0x7fc7583e9fe4] /usr/sbin/mysqld(_ZN18QUICK_RANGE_SELECT8get_nextEv+0x3c)[0x7fc7584a3c8 c] /usr/sbin/mysqld(+0x4e9195)[0x7fc7584bc195] /usr/sbin/mysqld(_Z10sub_selectP4JOINP13st_join_tableb+0x71)[0x7fc7582f 1741] /usr/sbin/mysqld(+0x32f025)[0x7fc758302025] /usr/sbin/mysqld(_ZN4JOIN4execEv+0x4a5)[0x7fc758311155] /usr/sbin/mysqld(_Z12mysql_selectP3THDPPP4ItemP10TABLE_LISTjR4ListIS1_E S2_jP8st_orderSB_S2_SB_yP13select_resultP18st_select_lex_unitP13st_sele ct_lex+0x130)[0x7fc75830d000] /usr/sbin/mysqld(_Z13handle_selectP3THDP3LEXP13select_resultm+0x17c)[0x 7fc758312f5c] /usr/sbin/mysqld(+0x2f66b4)[0x7fc7582c96b4] /usr/sbin/mysqld(_Z21mysql_execute_commandP3THD+0x16d8)[0x7fc7582d1118] /usr/sbin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x10f)[0x7fc758 2d5daf] /usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x13 80)[0x7fc7582d7200] /usr/sbin/mysqld(_Z24do_handle_one_connectionP3THD+0x1bd)[0x7fc75837b7a d] /usr/sbin/mysqld(handle_one_connection+0x50)[0x7fc75837b810] /lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a)[0x7fc757133e9a] /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7fc756864cbd] Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (7faa4c18e440): is an invalid pointer Connection ID (thread ID): 2286 Status: NOT_KILLED The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains information that should help you find out what is causing the crash. 121120 12:48:48 [Note] Plugin 'FEDERATED' is disabled. 121120 12:48:48 InnoDB: The InnoDB memory heap is disabled 121120 12:48:48 InnoDB: Mutexes and rw_locks use GCC atomic builtins 121120 12:48:48 InnoDB: Compressed tables use zlib 1.2.3.4 121120 12:48:48 InnoDB: Initializing buffer pool, size = 96.0G 121120 12:48:56 InnoDB: Completed initialization of buffer pool 121120 12:48:57
