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  1. MariaDB Server
  2. MDEV-15533

Assertion `log->blobs' failed in row_log_table_apply_update

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      Apparently belongs to the MDEV-14693 family.

      10.2 a05018977

      mysqld: /data/src/10.2/storage/innobase/row/row0log.cc:1985: dberr_t row_log_table_apply_update(que_thr_t*, ulint, const mrec_t*, const ulint*, mem_heap_t*, mem_heap_t*, row_merge_dup_t*, trx_id_t, const dtuple_t*): Assertion `log->blobs' failed.
      180309 17:43:15 [ERROR] mysqld got signal 6 ;
       
      Query (0x7eff34013618): ALTER TABLE `AA` ADD COLUMN c INTEGER DEFAULT NULL /* QNO 2942 CON_ID 16 */
      Connection ID (thread ID): 16
      Status: KILL_TIMEOUT
      

      #7  0x00007fe3fc442ee2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
      #8  0x0000560a3f71a73b in row_log_table_apply_update (thr=0x7fe388685620, new_trx_id_col=1, mrec=0x7fe3e00c7202 "\200", offsets=0x7fe388055920, offsets_heap=0x7fe3884b9940, heap=0x7fe3886dd470, dup=0x7fe3e0ef02e0, trx_id=6660, old_pk=0x7fe3886dd4f8) at /data/src/10.2/storage/innobase/row/row0log.cc:1985
      #9  0x0000560a3f71c061 in row_log_table_apply_op (thr=0x7fe388685620, trx_id_col=1, new_trx_id_col=1, dup=0x7fe3e0ef02e0, error=0x7fe3e0ef0084, offsets_heap=0x7fe3884b9940, heap=0x7fe3886dd470, mrec=0x7fe3e00c7202 "\200", mrec_end=0x7fe3e00d3b9c "", offsets=0x7fe388055920) at /data/src/10.2/storage/innobase/row/row0log.cc:2540
      #10 0x0000560a3f71d4bf in row_log_table_apply_ops (thr=0x7fe388685620, dup=0x7fe3e0ef02e0, stage=0x7fe388565430) at /data/src/10.2/storage/innobase/row/row0log.cc:2909
      #11 0x0000560a3f71d9ca in row_log_table_apply (thr=0x7fe388685620, old_table=0x7fe374189e88, table=0x7fe38805f050, stage=0x7fe388565430) at /data/src/10.2/storage/innobase/row/row0log.cc:3008
      #12 0x0000560a3f6048ae in ha_innobase::inplace_alter_table (this=0x7fe3741b1fa8, altered_table=0x7fe38805f050, ha_alter_info=0x7fe3e0ef0610) at /data/src/10.2/storage/innobase/handler/handler0alter.cc:6488
      #13 0x0000560a3f11a8f7 in handler::ha_inplace_alter_table (this=0x7fe3741b1fa8, altered_table=0x7fe38805f050, ha_alter_info=0x7fe3e0ef0610) at /data/src/10.2/sql/handler.h:3775
      #14 0x0000560a3f1117b1 in mysql_inplace_alter_table (thd=0x7fe388000ba0, table_list=0x7fe388013768, table=0x7fe3741b13a0, altered_table=0x7fe38805f050, ha_alter_info=0x7fe3e0ef0610, inplace_supported=HA_ALTER_INPLACE_NO_LOCK_AFTER_PREPARE, target_mdl_request=0x7fe3e0ef0680, alter_ctx=0x7fe3e0ef1240) at /data/src/10.2/sql/sql_table.cc:7332
      #15 0x0000560a3f116de4 in mysql_alter_table (thd=0x7fe388000ba0, new_db=0x7fe388013d78 "test", new_name=0x0, create_info=0x7fe3e0ef1e50, table_list=0x7fe388013768, alter_info=0x7fe3e0ef1da0, order_num=0, order=0x0, ignore=false) at /data/src/10.2/sql/sql_table.cc:9353
      #16 0x0000560a3f190954 in Sql_cmd_alter_table::execute (this=0x7fe388013f20, thd=0x7fe388000ba0) at /data/src/10.2/sql/sql_alter.cc:324
      #17 0x0000560a3f04bc57 in mysql_execute_command (thd=0x7fe388000ba0) at /data/src/10.2/sql/sql_parse.cc:6208
      #18 0x0000560a3f0505d1 in mysql_parse (thd=0x7fe388000ba0, rawbuf=0x7fe388013618 "ALTER TABLE `E` ADD COLUMN m INTEGER DEFAULT NULL /* QNO 3376 CON_ID 16 */", length=74, parser_state=0x7fe3e0ef3200, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:7902
      #19 0x0000560a3f03e4f1 in dispatch_command (command=COM_QUERY, thd=0x7fe388000ba0, packet=0x7fe38807ed41 "ALTER TABLE `E` ADD COLUMN m INTEGER DEFAULT NULL /* QNO 3376 CON_ID 16 */ ", packet_length=75, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:1806
      #20 0x0000560a3f03ce54 in do_command (thd=0x7fe388000ba0) at /data/src/10.2/sql/sql_parse.cc:1360
      #21 0x0000560a3f18b646 in do_handle_one_connection (connect=0x560a41e93610) at /data/src/10.2/sql/sql_connect.cc:1335
      #22 0x0000560a3f18b3d3 in handle_one_connection (arg=0x560a41e93610) at /data/src/10.2/sql/sql_connect.cc:1241
      #23 0x0000560a3f5ab1f8 in pfs_spawn_thread (arg=0x560a41f35e50) at /data/src/10.2/storage/perfschema/pfs.cc:1862
      #24 0x00007fe3fe119494 in start_thread (arg=0x7fe3e0ef4700) at pthread_create.c:333
      #25 0x00007fe3fc4ff93f in clone () from /lib/x86_64-linux-gnu/libc.so.6
      

      Getting it periodically on 10.2 while running

      experimental f6acdbc55e206

      perl ./runall-trials.pl --trials=20 --duration=350 --threads=6 --seed=1520525874 --reporters=Backtrace,ErrorLog,Deadlock --validators=TransformerNoComparator --transformers=ExecuteAsCTE,ExecuteAsDeleteReturning,ExecuteAsExecuteImmediate,ExecuteAsInsertSelect,ExecuteAsUnion,ExecuteAsUpdateDelete,ExecuteAsView,ExecuteAsPreparedTwice,ExecuteAsSPTwice --redefine=conf/mariadb/general-workarounds.yy --mysqld=--log_output=FILE --views --vcols --redefine=conf/mariadb/alter_table.yy --redefine=conf/mariadb/bulk_insert.yy --redefine=conf/mariadb/xa.yy --basedir=/data/bld/10.2 --mysqld=--log_bin_trust_function_creators=1 --mysqld=--log-bin --mysqld=--max-statement-time=30 --mysqld=--loose-debug_assert_on_not_freed_memory=0 --grammar=conf/runtime/performance_schema.yy --mysqld=--performance-schema --engine=InnoDB --vardir=/data/logs/travis3 --force
      

      No reliable information about other version. Most likely isn't worth digging, because root cause is likely to be the same as for the rest of MDEV-14693 family.

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              Assignee:
              wlad Vladislav Vaintroub
              Reporter:
              elenst Elena Stepanova
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                Updated:
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