Details
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Bug
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Status: Closed (View Workflow)
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Blocker
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Resolution: Fixed
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10.2(EOL), 10.3(EOL)
Description
# Run with RocksDB |
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CREATE OR REPLACE TABLE t1 (a INT) ENGINE=RocksDB; |
INSERT INTO t1 VALUES (1); |
ALTER TABLE t1 AUTO_INCREMENT 10; |
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# Cleanup
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DROP TABLE t1; |
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10.2 6c0f3dd34 |
#3 <signal handler called>
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#4 0x00007f3d0d2c9ae4 in myrocks::ha_rocksdb::load_auto_incr_value_from_index (this=0x7f3cdc0098f8) at /data/src/10.2/storage/rocksdb/ha_rocksdb.cc:5152
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#5 0x00007f3d0d2df34c in myrocks::ha_rocksdb::prepare_inplace_alter_table (this=0x7f3cdc0098f8, altered_table=0x7f3cdc0b3ce0, ha_alter_info=0x7f3d04dd6610) at /data/src/10.2/storage/rocksdb/ha_rocksdb.cc:11737
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#6 0x0000557afc412083 in handler::ha_prepare_inplace_alter_table (this=0x7f3cdc0098f8, altered_table=0x7f3cdc0b3ce0, ha_alter_info=0x7f3d04dd6610) at /data/src/10.2/sql/handler.cc:4210
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#7 0x0000557afc264e01 in mysql_inplace_alter_table (thd=0x7f3cdc000b00, table_list=0x7f3cdc012538, table=0x7f3cdc0c6b10, altered_table=0x7f3cdc0b3ce0, ha_alter_info=0x7f3d04dd6610, inplace_supported=HA_ALTER_INPLACE_SHARED_LOCK_AFTER_PREPARE, target_mdl_request=0x7f3d04dd6680, alter_ctx=0x7f3d04dd7240) at /data/src/10.2/sql/sql_table.cc:7301
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#8 0x0000557afc26a5ca in mysql_alter_table (thd=0x7f3cdc000b00, new_db=0x7f3cdc012b48 "test", new_name=0x0, create_info=0x7f3d04dd7e50, table_list=0x7f3cdc012538, alter_info=0x7f3d04dd7da0, order_num=0, order=0x0, ignore=false) at /data/src/10.2/sql/sql_table.cc:9355
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#9 0x0000557afc2e4346 in Sql_cmd_alter_table::execute (this=0x7f3cdc012b58, thd=0x7f3cdc000b00) at /data/src/10.2/sql/sql_alter.cc:324
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#10 0x0000557afc19eedc in mysql_execute_command (thd=0x7f3cdc000b00) at /data/src/10.2/sql/sql_parse.cc:6224
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#11 0x0000557afc1a3a48 in mysql_parse (thd=0x7f3cdc000b00, rawbuf=0x7f3cdc012448 "ALTER TABLE t1 AUTO_INCREMENT 10", length=32, parser_state=0x7f3d04dd9200, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:7940
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#12 0x0000557afc191739 in dispatch_command (command=COM_QUERY, thd=0x7f3cdc000b00, packet=0x7f3cdc18baf1 "ALTER TABLE t1 AUTO_INCREMENT 10", packet_length=32, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:1820
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#13 0x0000557afc19009c in do_command (thd=0x7f3cdc000b00) at /data/src/10.2/sql/sql_parse.cc:1374
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#14 0x0000557afc2df038 in do_handle_one_connection (connect=0x557aff461290) at /data/src/10.2/sql/sql_connect.cc:1335
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#15 0x0000557afc2dedc5 in handle_one_connection (arg=0x557aff461290) at /data/src/10.2/sql/sql_connect.cc:1241
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#16 0x0000557afc6fffa0 in pfs_spawn_thread (arg=0x557aff46b800) at /data/src/10.2/storage/perfschema/pfs.cc:1862
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#17 0x00007f3d143e1494 in start_thread (arg=0x7f3d04dda700) at pthread_create.c:333
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#18 0x00007f3d127c793f in clone () from /lib/x86_64-linux-gnu/libc.so.6
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It is a recent regression, apparently from the last merge or post-merge changes, I didn't search for the exact commit.
Attachments
Activity
The upstream that I have merged from crashes as well:
#0 __pthread_kill (threadid=<optimized out>, signo=11) at ../sysdeps/unix/sysv/linux/pthread_kill.c:62
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#1 0x000000000135ee00 in my_write_core (sig=11) at /home/psergey/dev-git/mysql-5.6-rocksdb-mergefrom/mysys/stacktrace.c:469
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#2 0x0000000000f2a8eb in handle_fatal_signal (sig=11) at /home/psergey/dev-git/mysql-5.6-rocksdb-mergefrom/sql/signal_handler.cc:239
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#3 <signal handler called>
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#4 0x00000000016a2224 in myrocks::ha_rocksdb::load_auto_incr_value_from_index (this=0x7f8784057330) at /home/psergey/dev-git/mysql-5.6-rocksdb-mergefrom/storage/rocksdb/ha_rocksdb.cc:4773
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#5 0x00000000016b7e81 in myrocks::ha_rocksdb::prepare_inplace_alter_table (this=0x7f8784057330, altered_table=0x7f8784090540, ha_alter_info=0x7f8795672a50) at /home/psergey/dev-git/mysql-5.6-rocksdb-mergefrom/storage/rocksdb/ha_rocksdb.cc:11187
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#6 0x0000000000df1839 in handler::ha_prepare_inplace_alter_table (this=0x7f8784057330, altered_table=0x7f8784090540, ha_alter_info=0x7f8795672a50) at /home/psergey/dev-git/mysql-5.6-rocksdb-mergefrom/sql/handler.cc:4721
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#7 0x00000000010780c7 in mysql_inplace_alter_table (thd=0x32eff60, table_list=0x7f8784005728, table=0x7f878405dd90, altered_table=0x7f8784090540, ha_alter_info=0x7f8795672a50, inplace_supported=HA_ALTER_INPLACE_SHARED_LOCK_AFTER_PREPARE, target_mdl_request=0x7f8795672ac0, alter_ctx=0x7f87956731e0) at /home/psergey/dev-git/mysql-5.6-rocksdb-mergefrom/sql/sql_table.cc:6779
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#8 0x000000000107d905 in mysql_alter_table (thd=0x32eff60, new_db=0x7f8784005c90 "test", new_name=0x0, create_info=0x7f8795674250, table_list=0x7f8784005728, alter_info=0x7f8795674170, order_num=0, order=0x0, ignore=false) at /home/psergey/dev-git/mysql-5.6-rocksdb-mergefrom/sql/sql_table.cc:8957
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#9 0x00000000012011a2 in Sql_cmd_alter_table::execute (this=0x7f8784005ca0, thd=0x32eff60) at /home/psergey/dev-git/mysql-5.6-rocksdb-mergefrom/sql/sql_alter.cc:335
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#10 0x0000000000ff56ba in mysql_execute_command (thd=0x32eff60, statement_start_time=0x7f8795675a48, post_parse=0x7f8795675c00) at /home/psergey/dev-git/mysql-5.6-rocksdb-mergefrom/sql/sql_parse.cc:6143
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#11 0x0000000000ff9827 in mysql_parse (thd=0x32eff60, rawbuf=0x7f8784005630 "ALTER TABLE t1 AUTO_INCREMENT 10", length=32, parser_state=0x7f87956764b0, last_timer=0x7f8795675c00, async_commit=0x7f8795675b6b "") at /home/psergey/dev-git/mysql-5.6-rocksdb-mergefrom/sql/sql_parse.cc:7829
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#12 0x0000000000fe9d61 in dispatch_command (command=COM_QUERY, thd=0x32eff60, packet=0x32fff81 "ALTER TABLE t1 AUTO_INCREMENT 10", packet_length=32, srv_session=0x0) at /home/psergey/dev-git/mysql-5.6-rocksdb-mergefrom/sql/sql_parse.cc:1897
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Seems to be fixed by this one
https://github.com/facebook/mysql-5.6/commit/997a979bf5e2f75ab88781d9d3fd22dddc1fc21f
We crash here:
Field *field =table->key_info[table->s->next_number_index].key_part[0].field;and we crash because
(gdb) p table->key_info[0]Cannot access memory at address 0x0and this "makes sense" because the table doesn't have any indexes.