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  1. MariaDB Server
  2. MDEV-34310

Replica Crash (Segfault) Caused by Apparent rpl_global_gtid_binlog_state Uninitialization

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Details

    • Bug
    • Status: Open (View Workflow)
    • Major
    • Resolution: Unresolved
    • 10.4.27
    • 10.5
    • Replication
    • None

    Description

      Somehow, rpl_global_gtid_binlog_state can become uninitialized:

      rpl_global_gtid_binlog_state = {hash = {key_offset = 0, key_length = 4, blength = 0, records = 0, flags = 1, array = {buffer = 0x7f34d6adb808 "", elements = 1, max_element = 64, alloc_increment = 64, size_of_element = 16, malloc_flags = 0}, get_key = 0, hash_function = 0x7f38611f8b10 <my_hash_sort>, free = 0, charset = 0x7f3861b48580}, LOCK_binlog_state = {m_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = -1, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 16 times>"\377, \377\377\377", '\000' <repeats 19 times>, __align = 0}, m_psi = 0x0}, initialized = 0 '\000', gtid_sort_array = {buffer = 0x0, elements = 0, max_element = 0, alloc_increment = 8, size_of_element = 16, malloc_flags = 0}}
      

      Which can cause a server to crash due to segfault

      Thread 1 (Thread 0x7f35109e6700 (LWP 39917)):
      #0  0x00007f385f68197c in pthread_kill () from /lib64/libpthread.so.0
      No symbol table info available.
      #1  0x00007f3860c6bb8e in handle_fatal_signal () at /home/buildbot/buildbot/build/sql/signal_handler.cc:366
      #2  <signal handler called>
      No symbol table info available.
      #3  0x00007f38611f9181 in my_hash_insert ()
      #4  0x00007f3860ba90c9 in rpl_binlog_state::bump_seq_no_if_needed(unsigned int, unsigned long long) () at /home/buildbot/buildbot/build/sql/rpl_gtid.cc:1788 
      #5  0x00007f3860ba73c9 in rpl_slave_state::record_gtid(THD*, rpl_gtid const*, unsigned long long, bool, bool, void**) () at /home/buildbot/buildbot/build/sql/rpl_gtid.cc:714
      #6  0x00007f3860d65ab6 in Xid_log_event::do_apply_event(rpl_group_info*) () at /home/buildbot/buildbot/build/sql/log_event.cc:9045
      #7  0x00007f38609c31c8 in apply_event_and_update_pos_apply(Log_event*, THD*, rpl_group_info*, int) () at /home/buildbot/buildbot/build/sql/log_event.h:1492
      #8  0x00007f3860bab26e in rpt_handle_event () at /home/buildbot/buildbot/build/sql/rpl_parallel.cc:62
      #9  0x00007f3860badb33 in handle_rpl_parallel_thread () at /home/buildbot/buildbot/build/sql/rpl_parallel.cc:1367
      #10 0x00007f385f67caa1 in start_thread () from /lib64/libpthread.so.0
      No symbol table info available.
      #11 0x00007f385ec3bc4d in clone () from /lib64/libc.so.6 
      

      And in the given state of the server, I can't find a reason that rpl_global_gtid_binlog_state would be uninitialized (backtrace filtered aiming to try and show only potentially relevant threads):

      Thread 70 (Thread 0x7f34ee5fe700 (LWP 39924)):
      #0  0x00007f385f683eed in fsync () from /lib64/libpthread.so.0
      No symbol table info available.
      #1  0x00007f3860faf8ad in os_file_flush_func(int) () at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2390
      #2  0x00007f3861134b10 in fil_flush_low(fil_space_t*, bool) () at /home/buildbot/buildbot/build/storage/innobase/include/os0file.inl:406
      #3  0x00007f3861134cb3 in fil_flush(unsigned long) () at /home/buildbot/buildbot/build/storage/innobase/fil/fil0fil.cc:4427
      #4  0x00007f3860f8e5a1 in log_write_flush_to_disk_low() () at /home/buildbot/buildbot/build/storage/innobase/log/log0log.cc:805
      #5  0x00007f3860f8ed7d in log_write_up_to () at /home/buildbot/buildbot/build/storage/innobase/log/log0log.cc:1031
      #6  0x00007f3861078f76 in trx_prepare_for_mysql(trx_t*) () at /home/buildbot/buildbot/build/storage/innobase/trx/trx0trx.cc:1210
      #7  0x00007f3860f3343c in innobase_xa_prepare(handlerton*, THD*, bool) () at /home/buildbot/buildbot/build/storage/innobase/handler/ha_innodb.cc:16997
      #8  0x00007f3860c79e27 in prepare_or_error(handlerton*, THD*, bool) () at /home/buildbot/buildbot/build/sql/handler.cc:1282
      #9  0x00007f3860c7a6ff in ha_commit_trans(THD*, bool) () at /home/buildbot/buildbot/build/sql/handler.cc:1645
      #10 0x00007f3860b70747 in trans_commit(THD*) () at /home/buildbot/buildbot/build/sql/transaction.cc:237
      #11 0x00007f3860d65af0 in Xid_log_event::do_apply_event(rpl_group_info*) () at /home/buildbot/buildbot/build/sql/log_event.cc:9074
      #12 0x00007f38609c31c8 in apply_event_and_update_pos_apply(Log_event*, THD*, rpl_group_info*, int) () at /home/buildbot/buildbot/build/sql/log_event.h:1492
      #13 0x00007f3860bab26e in rpt_handle_event () at /home/buildbot/buildbot/build/sql/rpl_parallel.cc:62
      #14 0x00007f3860badb33 in handle_rpl_parallel_thread () at /home/buildbot/buildbot/build/sql/rpl_parallel.cc:1367
      #15 0x00007f385f67caa1 in start_thread () from /lib64/libpthread.so.0
      No symbol table info available.
      #16 0x00007f385ec3bc4d in clone () from /lib64/libc.so.6
      No symbol table info available.
       
      Thread 43 (Thread 0x7f3860312740 (LWP 39720)):
      #0  0x00007f385ec32403 in poll () from /lib64/libc.so.6
      No symbol table info available.
      #1  0x00007f38609b03fa in handle_connections_sockets() () at /home/buildbot/buildbot/build/sql/mysqld.cc:6516
      #2  0x00007f38609b15d3 in mysqld_main(int, char**) () at /home/buildbot/buildbot/build/sql/mysqld.cc:5952
      #3  0x00007f385eb71d20 in __libc_start_main () from /lib64/libc.so.6
      No symbol table info available.
      #4  0x00007f38609a5221 in _start ()
       
      Thread 31 (Thread 0x7f38511fe700 (LWP 39915)):
      #0  0x00007f385ec32403 in poll () from /lib64/libc.so.6
      No symbol table info available.
      #1  0x00007f3860dfbb5e in vio_io_wait ()
      #2  0x00007f3860dfbc58 in vio_socket_io_wait ()
      #3  0x00007f3860dfbd24 in vio_read ()
      #4  0x00007f3860dfbe51 in vio_read_buff ()
      #5  0x00007f3860d816cb in my_real_read(st_net*, unsigned long*, char) () at /home/buildbot/buildbot/build/sql/net_serv.cc:977
      #6  0x00007f3860d825a0 in my_net_read_packet_reallen () at /home/buildbot/buildbot/build/sql/net_serv.cc:1258
      #7  0x00007f3860c3e817 in cli_safe_read_reallen ()
      #8  0x00007f38609d0c43 in handle_slave_io () at /home/buildbot/buildbot/build/sql/slave.cc:3582
      #9  0x00007f385f67caa1 in start_thread () from /lib64/libpthread.so.0
      No symbol table info available.
      #10 0x00007f385ec3bc4d in clone () from /lib64/libc.so.6
      No symbol table info available.
       
      Thread 29 (Thread 0x7f3848577700 (LWP 39916)):
      #0  0x00007f385f68068c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
      No symbol table info available.
      #1  0x00007f3860d570ab in MYSQL_BIN_LOG::wait_for_update_relay_log(THD*) () at /home/buildbot/buildbot/build/include/mysql/psi/mysql_thread.h:1185
      #2  0x00007f38609c36da in next_event(rpl_group_info*, unsigned long long*) () at /home/buildbot/buildbot/build/sql/slave.cc:7754
      #3  0x00007f38609cc117 in handle_slave_sql () at /home/buildbot/buildbot/build/sql/slave.cc:4116
      #4  0x00007f385f67caa1 in start_thread () from /lib64/libpthread.so.0
      No symbol table info available.
      #5  0x00007f385ec3bc4d in clone () from /lib64/libc.so.6
      No symbol table info available.
      

      And 2 user threads:

      Thread 59 (Thread 0x7f34d4efe700 (LWP 14680)):
      #0  Field::type() const () at /home/buildbot/buildbot/build/sql/field.h:1047
      #1  0x00007f3860f2fa2b in ha_innobase::cmp_ref(unsigned char const*, unsigned char const*) () at /home/buildbot/buildbot/build/storage/innobase/handler/ha_innodb.cc:16833
      #2  0x00007f3860be29be in Rowid_filter_sorted_array::check(void*, char*) () at /home/buildbot/buildbot/build/sql/rowid_filter.cc:640
      #3  0x00007f3860be3b69 in Range_rowid_filter::check(char*) () at /home/buildbot/buildbot/build/sql/rowid_filter.h:278
      #4  0x00007f3860c765e0 in handler_rowid_filter_check () at /home/buildbot/buildbot/build/sql/handler.cc:6107
      #5  0x00007f38609755db in row_search_idx_cond_check(unsigned char*, row_prebuilt_t*, unsigned char const*, unsigned short const*) () at /home/buildbot/buildbot/build/storage/innobase/row/row0sel.cc:4033
      #6  0x00007f386102bac3 in row_search_mvcc(unsigned char*, page_cur_mode_t, row_prebuilt_t*, unsigned long, unsigned long) () at /home/buildbot/buildbot/build/storage/innobase/row/row0sel.cc:5355
      #7  0x00007f3860f48b1e in ha_innobase::index_read(unsigned char*, unsigned char const*, unsigned int, ha_rkey_function) () at /home/buildbot/buildbot/build/storage/innobase/handler/ha_innodb.cc:9402
      #8  0x00007f3860c70e98 in handler::ha_index_read_map(unsigned char*, unsigned char const*, unsigned long, ha_rkey_function) () at /home/buildbot/buildbot/build/sql/handler.cc:2948
      #9  0x00007f3860aaf8d7 in join_read_always_key(st_join_table*) () at /home/buildbot/buildbot/build/sql/sql_select.cc:21501
      #10 0x00007f3860aa4309 in sub_select(JOIN*, st_join_table*, bool) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20734
      #11 0x00007f3860a9eebb in evaluate_join_record(JOIN*, st_join_table*, int) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20964
      #12 0x00007f3860aa437c in sub_select(JOIN*, st_join_table*, bool) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20776
      #13 0x00007f3860a9eebb in evaluate_join_record(JOIN*, st_join_table*, int) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20964
      #14 0x00007f3860aa431e in sub_select(JOIN*, st_join_table*, bool) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20737
      #15 0x00007f3860a9eebb in evaluate_join_record(JOIN*, st_join_table*, int) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20964
      #16 0x00007f3860aa437c in sub_select(JOIN*, st_join_table*, bool) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20776
      #17 0x00007f3860ad304b in JOIN::exec_inner() () at /home/buildbot/buildbot/build/sql/sql_select.cc:20271
      #18 0x00007f3860ad33c3 in JOIN::exec() () at /home/buildbot/buildbot/build/sql/sql_select.cc:4355
      #19 0x00007f3860ad1376 in mysql_select(THD*, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) () at /home/buildbot/buildbot/build/sql/sql_select.cc:4794
      #20 0x00007f3860a35613 in mysql_derived_fill(THD*, LEX*, TABLE_LIST*) () at /home/buildbot/buildbot/build/sql/sql_derived.cc:1289
      #21 0x00007f3860a351bd in mysql_handle_single_derived(LEX*, TABLE_LIST*, unsigned int) () at /home/buildbot/buildbot/build/sql/sql_derived.cc:200
      #22 0x00007f3860aa4039 in st_join_table::preread_init() () at /home/buildbot/buildbot/build/sql/sql_select.cc:13759
      #23 0x00007f3860aa42d8 in sub_select(JOIN*, st_join_table*, bool) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20701
      #24 0x00007f3860ad304b in JOIN::exec_inner() () at /home/buildbot/buildbot/build/sql/sql_select.cc:20271
      #25 0x00007f3860ad33c3 in JOIN::exec() () at /home/buildbot/buildbot/build/sql/sql_select.cc:4355
      #26 0x00007f3860ad1376 in mysql_select(THD*, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) () at /home/buildbot/buildbot/build/sql/sql_select.cc:4794
      #27 0x00007f3860ad1ef7 in handle_select(THD*, LEX*, select_result*, unsigned long) () at /home/buildbot/buildbot/build/sql/sql_select.cc:448
      #28 0x00007f386096163b in execute_sqlcom_select(THD*, TABLE_LIST*) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:6450
      #29 0x00007f3860a75619 in mysql_execute_command(THD*) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:3964
      #30 0x00007f38609d25d5 in sp_instr_stmt::exec_core(THD*, unsigned int*) () at /home/buildbot/buildbot/build/sql/sp_head.cc:3694
      #31 0x00007f38609dacb5 in sp_lex_keeper::reset_lex_and_exec_core(THD*, unsigned int*, bool, sp_instr*) () at /home/buildbot/buildbot/build/sql/sp_head.cc:3424
      #32 0x00007f38609db7cc in sp_instr_stmt::execute(THD*, unsigned int*) () at /home/buildbot/buildbot/build/sql/sp_head.cc:3600
      #33 0x00007f38609d63e4 in sp_head::execute(THD*, bool) () at /home/buildbot/buildbot/build/sql/sp_head.cc:1365
      #34 0x00007f38609d7b99 in sp_head::execute_procedure(THD*, List<Item>*) () at /home/buildbot/buildbot/build/sql/sp_head.cc:2371
      #35 0x00007f3860a68e9a in do_execute_sp(THD*, sp_head*) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:3052
      #36 0x00007f3860a6b326 in Sql_cmd_call::execute () at /home/buildbot/buildbot/build/sql/sql_parse.cc:3294
      #37 0x00007f3860a6bb40 in Sql_cmd_call::execute(THD*) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:3248
      #38 0x00007f3860a73953 in mysql_execute_command(THD*) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:6193
      #39 0x00007f3860a8e6c5 in Prepared_statement::execute(String*, bool) () at /home/buildbot/buildbot/build/sql/sql_prepare.cc:5026
      #40 0x00007f3860a8e7de in Prepared_statement::execute_loop(String*, bool, unsigned char*, unsigned char*) () at /home/buildbot/buildbot/build/sql/sql_prepare.cc:4495
      #41 0x00007f3860a8f917 in mysql_stmt_execute_common(THD*, unsigned long, unsigned char*, unsigned char*, unsigned long, bool, bool) () at /home/buildbot/buildbot/build/sql/sql_prepare.cc:3469
      #42 0x00007f3860a8fa0d in mysqld_stmt_execute(THD*, char*, unsigned int) () at /home/buildbot/buildbot/build/sql/sql_prepare.cc:3255
      #43 0x00007f3860a7c8de in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:1781
      #44 0x00007f3860a7e192 in do_command(THD*) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:1379
      #45 0x00007f3860b61f19 in do_handle_one_connection(CONNECT*) () at /home/buildbot/buildbot/build/sql/sql_connect.cc:1420
      #46 0x00007f3860b61fdd in handle_one_connection () at /home/buildbot/buildbot/build/sql/sql_connect.cc:1324
      #47 0x00007f385f67caa1 in start_thread () from /lib64/libpthread.so.0
      No symbol table info available.
      #48 0x00007f385ec3bc4d in clone () from /lib64/libc.so.6
      No symbol table info available.
       
      Thread 52 (Thread 0x7f34b8afe700 (LWP 61305)):
      #0  Create_func_year_week::~Create_func_year_week() () at /home/buildbot/buildbot/build/sql/item_create.h:68
      #1  0x00007f385eb88a02 in exit () from /lib64/libc.so.6
      No symbol table info available.
      #2  0x00007f34f0f93a54 in isc_Entropy_Get_Fork_Response_Info () from /usr/local/lib/libiniCrypto.so
      No symbol table info available.
      #3  0x00007f34f0f92a57 in isc_Collect_ENTROPY () from /usr/local/lib/libiniCrypto.so
      No symbol table info available.
      #4  0x00007f34f0f9248f in get_collection_entropy () from /usr/local/lib/libiniCrypto.so
      No symbol table info available.
      #5  0x00007f34f0f924c8 in get_entropy_digest () from /usr/local/lib/libiniCrypto.so
      No symbol table info available.
      #6  0x00007f34f0f92568 in get_entropy_ex () from /usr/local/lib/libiniCrypto.so
      No symbol table info available.
      #7  0x00007f34f0f926b3 in isc_Get_ENTROPY_Input_With_Nonce_Input () from /usr/local/lib/libiniCrypto.so
      No symbol table info available.
      #8  0x00007f34f0f8ddd2 in isc_Entropy_Check () from /usr/local/lib/libiniCrypto.so
      No symbol table info available.
      #9  0x00007f34f0f8e460 in ISC_Crypto_Self_Test () from /usr/local/lib/libiniCrypto.so
      No symbol table info available.
      #10 0x00007f34f0f90d7f in ISC_Crypto_Initialize () from /usr/local/lib/libiniCrypto.so
      No symbol table info available.
      #11 0x00007f34f0f67b92 in ISC_Init_BLOCK_CIPHER () from /usr/local/lib/libiniCrypto.so
      No symbol table info available.
      #12 0x00007f384857c6e5 in crypto_blockcipher () from /data/maria/lib/plugin/libDGuardMySQL.so
      No symbol table info available.
      #13 0x00007f384857c5e1 in eap_mseed_dec_pm () from /data/maria/lib/plugin/libDGuardMySQL.so
      No symbol table info available.
      #14 0x00007f384857d1ff in eap_mod_user () from /data/maria/lib/plugin/libDGuardMySQL.so
      No symbol table info available.
      #15 0x00007f3848581e7e in adg_logon () from /data/maria/lib/plugin/libDGuardMySQL.so
      No symbol table info available.
      #16 0x00007f3848582b94 in dgm_decrypt () from /data/maria/lib/plugin/libDGuardMySQL.so
      No symbol table info available.
      #17 0x00007f3860ce4675 in udf_handler::val_str(String*, String*) () at /home/buildbot/buildbot/build/sql/item_func.cc:3628
      #18 0x00007f3860ce474c in Item_func_udf_str::val_str(String*) () at /home/buildbot/buildbot/build/sql/item_func.cc:3775
      #19 0x00007f3860c92251 in Item::save_str_in_field(Field*, bool) () at /home/buildbot/buildbot/build/sql/item.cc:6666
      #20 0x00007f3860c837e6 in Item::save_in_field(Field*, bool) () at /home/buildbot/buildbot/build/sql/item.cc:6714
      #21 0x00007f3860c49d76 in Field::sp_prepare_and_store_item(THD*, Item**) () at /home/buildbot/buildbot/build/sql/field.cc:1367
      #22 0x00007f38609d4767 in THD::sp_eval_expr(Field*, Item**) () at /home/buildbot/buildbot/build/sql/sp_head.cc:391
      #23 0x00007f38609e2ac3 in sp_rcontext::set_variable(THD*, unsigned int, Item**) () at /home/buildbot/buildbot/build/sql/sp_rcontext.cc:638
      #24 0x00007f3860a25c64 in my_var_sp::set(THD*, Item*) () at /home/buildbot/buildbot/build/sql/sql_class.cc:4255
      #25 0x00007f3860a25df4 in select_dumpvar::send_data_to_var_list(List<Item>&) () at /home/buildbot/buildbot/build/sql/sql_class.cc:4274
      #26 0x00007f3860a25f18 in select_dumpvar::send_data(List<Item>&) () at /home/buildbot/buildbot/build/sql/sql_class.cc:4298
      #27 0x00007f3860ad2ea0 in JOIN::exec_inner() () at /home/buildbot/buildbot/build/sql/sql_select.cc:4441
      #28 0x00007f3860ad33c3 in JOIN::exec() () at /home/buildbot/buildbot/build/sql/sql_select.cc:4355
      #29 0x00007f3860ad1376 in mysql_select(THD*, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) () at /home/buildbot/buildbot/build/sql/sql_select.cc:4794
      #30 0x00007f3860ad1ef7 in handle_select(THD*, LEX*, select_result*, unsigned long) () at /home/buildbot/buildbot/build/sql/sql_select.cc:448
      #31 0x00007f386096163b in execute_sqlcom_select(THD*, TABLE_LIST*) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:6450
      #32 0x00007f3860a75619 in mysql_execute_command(THD*) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:3964
      #33 0x00007f38609d25d5 in sp_instr_stmt::exec_core(THD*, unsigned int*) () at /home/buildbot/buildbot/build/sql/sp_head.cc:3694
      #34 0x00007f38609dacb5 in sp_lex_keeper::reset_lex_and_exec_core(THD*, unsigned int*, bool, sp_instr*) () at /home/buildbot/buildbot/build/sql/sp_head.cc:3424
      #35 0x00007f38609db7cc in sp_instr_stmt::execute(THD*, unsigned int*) () at /home/buildbot/buildbot/build/sql/sp_head.cc:3600
      #36 0x00007f38609d63e4 in sp_head::execute(THD*, bool) () at /home/buildbot/buildbot/build/sql/sp_head.cc:1365
      #37 0x00007f38609d85d9 in sp_head::execute_function(THD*, Item**, unsigned int, Field*, sp_rcontext**, Query_arena*) () at /home/buildbot/buildbot/build/sql/sp_head.cc:2088
      #38 0x00007f3860c8cc8d in Item_sp::execute_impl(THD*, Item**, unsigned int) () at /home/buildbot/buildbot/build/sql/item.cc:2840
      #39 0x00007f3860c8ced1 in Item_sp::execute(THD*, bool*, Item**, unsigned int) () at /home/buildbot/buildbot/build/sql/item.cc:2753
      #40 0x00007f3860cf0477 in Item_func_sp::val_str(String*) () at /home/buildbot/buildbot/build/sql/item_func.h:3313
      #41 0x00007f3860bc783c in Type_handler::Item_send_str(Item*, Protocol*, st_value*) const () at /home/buildbot/buildbot/build/sql/sql_type.cc:7073
      #42 0x00007f38609b85bf in Protocol::send_result_set_row(List<Item>*) () at /home/buildbot/buildbot/build/sql/protocol.cc:1038
      #43 0x00007f3860a284f3 in select_send::send_data(List<Item>&) () at /home/buildbot/buildbot/build/sql/sql_class.cc:3114
      #44 0x00007f3860ab165f in end_send(JOIN*, st_join_table*, bool) () at /home/buildbot/buildbot/build/sql/sql_select.cc:21932
      #45 0x00007f3860a9eebb in evaluate_join_record(JOIN*, st_join_table*, int) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20964
      #46 0x00007f3860aa431e in sub_select(JOIN*, st_join_table*, bool) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20737
      #47 0x00007f3860a9eebb in evaluate_join_record(JOIN*, st_join_table*, int) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20964
      #48 0x00007f3860aa431e in sub_select(JOIN*, st_join_table*, bool) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20737
      #49 0x00007f3860a9eebb in evaluate_join_record(JOIN*, st_join_table*, int) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20964
      #50 0x00007f3860aa431e in sub_select(JOIN*, st_join_table*, bool) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20737
      #51 0x00007f3860a9eebb in evaluate_join_record(JOIN*, st_join_table*, int) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20964
      #52 0x00007f3860aa431e in sub_select(JOIN*, st_join_table*, bool) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20737
      #53 0x00007f3860a9eebb in evaluate_join_record(JOIN*, st_join_table*, int) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20964
      #54 0x00007f3860aa437c in sub_select(JOIN*, st_join_table*, bool) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20776
      #55 0x00007f3860a9eebb in evaluate_join_record(JOIN*, st_join_table*, int) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20964
      #56 0x00007f3860aa431e in sub_select(JOIN*, st_join_table*, bool) () at /home/buildbot/buildbot/build/sql/sql_select.cc:20737
      #57 0x00007f3860ad304b in JOIN::exec_inner() () at /home/buildbot/buildbot/build/sql/sql_select.cc:20271
      #58 0x00007f3860ad33c3 in JOIN::exec() () at /home/buildbot/buildbot/build/sql/sql_select.cc:4355
      #59 0x00007f3860ad1376 in mysql_select(THD*, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) () at /home/buildbot/buildbot/build/sql/sql_select.cc:4794
      #60 0x00007f3860ad1ef7 in handle_select(THD*, LEX*, select_result*, unsigned long) () at /home/buildbot/buildbot/build/sql/sql_select.cc:448
      #61 0x00007f386096163b in execute_sqlcom_select(THD*, TABLE_LIST*) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:6450
      #62 0x00007f3860a75619 in mysql_execute_command(THD*) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:3964
      #63 0x00007f3860a7a262 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:7982
      #64 0x00007f3860a7cfa7 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:1858
      #65 0x00007f3860a7e192 in do_command(THD*) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:1379
      #66 0x00007f3860b61f19 in do_handle_one_connection(CONNECT*) () at /home/buildbot/buildbot/build/sql/sql_connect.cc:1420
      #67 0x00007f3860b61fdd in handle_one_connection () at /home/buildbot/buildbot/build/sql/sql_connect.cc:1324
      #68 0x00007f385f67caa1 in start_thread () from /lib64/libpthread.so.0
      No symbol table info available.
      #69 0x00007f385ec3bc4d in clone () from /lib64/libc.so.6
      No symbol table info available.
      

      Note the following slave variables extracted from the backtrace as well:

      pt_bin_log = true
      opt_log_slave_updates = 1 '\001'
      mysql_bin_log = { /* Prior fields filtered out */ write_error = false, inited = true /* Later fields filtered out */ }
      

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            bnestere Brandon Nesterenko
            bnestere Brandon Nesterenko
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              Updated:

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