connect.misc fails in bb, sig 11 in XML2NODELIST::GetItem , sporadic

connect.misc                             w3 [ fail ]

        Test ended at 2022-02-03 13:06:12

CURRENT_TEST: connect.misc

mysqltest: At line 78: query 'insert into beers values('11','22','33')' failed: 2013: Lost connection to MySQL server during query

The result from queries just before the failure was:

< snip >

1

drop table t;

create table beers (

`Name` char(16) xpath='brandName',

`Origin` char(16) xpath='origin',

`Description` char(32) xpath='details')

engine=CONNECT table_type=XML file_name='MYSQLTEST_VARDIR/tmp/beer.xml'

tabname='table' option_list='rownode=tr,colnode=td%n';

select * from beers;

Name	Origin	Description

NULL	NULL	NULL

NULL	NULL	NULL

drop table beers;

create table beers (

`Name` char(16) xpath='brandName',

`Origin` char(16) xpath='origin',

`Description` char(32) xpath='details')

engine=CONNECT table_type=XML file_name='MYSQLTEST_VARDIR/tmp/beer.xml'

tabname='table' option_list='rownode=tr,colnode=td';

insert into beers values('11','22','33');

More results from queries before failure can be found in /dev/shm/var/3/log/misc.log

Server [mysqld.1 - pid: 1644, winpid: 1644, exit: 256] failed during test run

Server log from this test:

----------SERVER LOG START-----------

OpenTable: MakeSQL: Wrong place holders specification

XPath error : Invalid expression

td%n/brandName

  ^

XPath error : Invalid expression

td%n/origin

  ^

XPath error : Invalid expression

td%n/details

  ^

XPath error : Invalid expression

td%n/brandName

  ^

XPath error : Invalid expression

td%n/origin

  ^

XPath error : Invalid expression

td%n/details

  ^

220203 13:06:12 [ERROR] 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.

To report this bug, see https://mariadb.com/kb/en/reporting-bugs

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.

Server version: 10.2.42-MariaDB-log

key_buffer_size=1048576

read_buffer_size=131072

max_used_connections=3

max_threads=153

thread_count=3

It is possible that mysqld could use up to 

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 63021 K  bytes of memory

Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x7fd86c0009a8

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 = 0x7fd88468ee00 thread_stack 0x49000

/usr/local/mariadb-10.2.42-linux-x86_64/bin/mysqld(my_print_stacktrace+0x2e)[0x7fd88cfb6b9e]

/usr/local/mariadb-10.2.42-linux-x86_64/bin/mysqld(handle_fatal_signal+0x30d)[0x7fd88ca0febd]

sigaction.c:0(__restore_rt)[0x7fd88bede4a0]

connect/libdoc.cpp:1197(XML2NODELIST::GetItem(_global*, int, XMLNODE*))[0x7fd885d01ca7]

connect/tabxml.cpp:1789(XMLCOL::WriteColumn(_global*))[0x7fd885d043b3]

/usr/local/mariadb-10.2.42-linux-x86_64/lib/plugin/ha_connect.so(_Z11CntWriteRowP7_globalP3TDB+0x4e)[0x7fd885c5f0fe]

connect/ha_connect.cc:3721(ha_connect::write_row(unsigned char*))[0x7fd885c53678]

sql/handler.cc:6118(handler::ha_write_row(unsigned char*))[0x7fd88ca1a7d3]

sql/sql_insert.cc:1951(write_record(THD*, TABLE*, st_copy_info*))[0x7fd88c85ad8f]

sql/sql_insert.cc:1066(mysql_insert(THD*, TABLE_LIST*, List<Item>&, List<List<Item> >&, List<Item>&, List<Item>&, enum_duplicates, bool))[0x7fd88c8611e2]

sql/sql_parse.cc:4219(mysql_execute_command(THD*))[0x7fd88c877e2b]

sql/sql_parse.cc:7793(mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool))[0x7fd88c87e265]

sql/sql_parse.cc:1891(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool))[0x7fd88c8803ce]

sql/sql_parse.cc:1384(do_command(THD*))[0x7fd88c88182a]

sql/sql_connect.cc:1336(do_handle_one_connection(CONNECT*))[0x7fd88c94d0e6]

sql/sql_connect.cc:1243(handle_one_connection)[0x7fd88c94d1fd]

:0(pfs_spawn_thread)[0x7fd88cf2c2ed]

pthread_create.c:0(start_thread)[0x7fd88bed67f1]

/lib64/libc.so.6(clone+0x6d)[0x7fd88ae56ccd]

Trying to get some variables.

Some pointers may be invalid and cause the dump to abort.

Query (0x7fd86c00f120): insert into beers values('11','22','33')

Connection ID (thread ID): 102

Status: NOT_KILLED

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=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on

The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/ contains

information that should help you find out what is causing the crash.

Writing a core file...

Working directory at /dev/shm/var/3/mysqld.1/data

Resource Limits:

Limit                     Soft Limit           Hard Limit           Units     

Max cpu time              unlimited            unlimited            seconds   

Max file size             unlimited            unlimited            bytes     

Max data size             unlimited            unlimited            bytes     

Max stack size            10485760             unlimited            bytes     

Max core file size        unlimited            unlimited            bytes     

Max resident set          unlimited            unlimited            bytes     

Max processes             1024                 62852                processes 

Max open files            1024                 1024                 files     

Max locked memory         65536                65536                bytes     

Max address space         unlimited            unlimited            bytes     

Max file locks            unlimited            unlimited            locks     

Max pending signals       62852                62852                signals   

Max msgqueue size         819200               819200               bytes     

Max nice priority         0                    0                    

Max realtime priority     0                    0                    

Max realtime timeout      unlimited            unlimited            us        

Core pattern: core

----------SERVER LOG END-------------

 - found 'core.1645' (0/0)

Trying 'dbx' to get a backtrace

Trying 'gdb' to get a backtrace from coredump /dev/shm/var/3/log/connect.misc/mysqld.1/data/core.1645

Core generated by '/usr/local/mariadb-10.2.42-linux-x86_64/bin/mysqld'

Output from gdb follows. The first stack trace is from the failing thread.

The following stack traces are from all threads (so the failing one is

duplicated).

--------------------------

[New Thread 2139]

[New Thread 1645]

[New Thread 1689]

[New Thread 1658]

[New Thread 2140]

[New Thread 1661]

[New Thread 1665]

[New Thread 1662]

[Thread debugging using libthread_db enabled]

Core was generated by `/usr/local/mariadb-10.2.42-linux-x86_64/bin/mysqld --defaults-group-suffix=.1 -'.

Program terminated with signal 11, Segmentation fault.

#0  0x00007fd88bedb63c in pthread_kill () from /lib64/libpthread.so.0

#0  0x00007fd88bedb63c in pthread_kill () from /lib64/libpthread.so.0

#1  0x00007fd88ca0ff3e in handle_fatal_signal ()

#2  <signal handler called>

#3  0x00007fd885d01ca7 in XML2NODELIST::GetItem(_global*, int, XMLNODE*) () at /home/buildbot/buildbot/build/storage/connect/libdoc.cpp:1197

#4  0x00007fd885d043b3 in XMLCOL::WriteColumn(_global*) () at /home/buildbot/buildbot/build/storage/connect/tabxml.cpp:1784

#5  0x00007fd885c5f0fe in CntWriteRow(_global*, TDB*) () from /usr/local/mariadb-10.2.42-linux-x86_64/lib/plugin/ha_connect.so

#6  0x00007fd885c53678 in ha_connect::write_row(unsigned char*) () at /home/buildbot/buildbot/build/storage/connect/ha_connect.cc:3721

#7  0x00007fd88ca1a7d3 in handler::ha_write_row(unsigned char*) () at /home/buildbot/buildbot/build/sql/handler.cc:6118

#8  0x00007fd88c85ad8f in write_record(THD*, TABLE*, st_copy_info*) () at /home/buildbot/buildbot/build/sql/sql_insert.cc:1951

#9  0x00007fd88c8611e2 in mysql_insert(THD*, TABLE_LIST*, List<Item>&, List<List<Item> >&, List<Item>&, List<Item>&, enum_duplicates, bool) () at /home/buildbot/buildbot/build/sql/sql_insert.cc:1066

#10 0x00007fd88c877e2b in mysql_execute_command(THD*) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:4219

#11 0x00007fd88c87e265 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:7793

#12 0x00007fd88c8803ce in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:1828

#13 0x00007fd88c88182a in do_command(THD*) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:1382

#14 0x00007fd88c94d0e6 in do_handle_one_connection(CONNECT*) () at /home/buildbot/buildbot/build/sql/sql_connect.cc:1336

#15 0x00007fd88c94d1fd in handle_one_connection () at /home/buildbot/buildbot/build/sql/sql_connect.cc:1241

#16 0x00007fd88cf2c2ed in pfs_spawn_thread ()

#17 0x00007fd88bed67f1 in start_thread () from /lib64/libpthread.so.0

#18 0x00007fd88ae56ccd in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7fd88476d700 (LWP 1662)):

#0  0x00007fd88bede245 in sigwait () from /lib64/libpthread.so.0

#1  0x00007fd88c7d266b in signal_hand () at /home/buildbot/buildbot/build/sql/mysqld.cc:3559

#2  0x00007fd88cf2c2ed in pfs_spawn_thread ()

#3  0x00007fd88bed67f1 in start_thread () from /lib64/libpthread.so.0

#4  0x00007fd88ae56ccd in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7fd884723700 (LWP 1665)):

#0  0x00007fd88beda3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0

#1  0x00007fd88c86d950 in handle_manager ()

#2  0x00007fd88cf2c2ed in pfs_spawn_thread ()

#3  0x00007fd88bed67f1 in start_thread () from /lib64/libpthread.so.0

#4  0x00007fd88ae56ccd in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7fd87ffff700 (LWP 1661)):

#0  0x00007fd88beda75b in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0

#1  0x00007fd88ce5c33b in my_service_thread_sleep ()

#2  0x00007fd88ce5400a in ma_checkpoint_background ()

#3  0x00007fd88cf2c2ed in pfs_spawn_thread ()

#4  0x00007fd88bed67f1 in start_thread () from /lib64/libpthread.so.0

#5  0x00007fd88ae56ccd in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7fd884645700 (LWP 2140)):

#0  0x00007fd88beda75b in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0

#1  0x00007fd88c7d3c3d in one_thread_per_connection_end(THD*, bool) () at /home/buildbot/buildbot/build/include/mysql/psi/mysql_thread.h:1182

#2  0x00007fd88c94d046 in do_handle_one_connection(CONNECT*) () at /home/buildbot/buildbot/build/sql/sql_connect.cc:1355

#3  0x00007fd88c94d1fd in handle_one_connection () at /home/buildbot/buildbot/build/sql/sql_connect.cc:1241

#4  0x00007fd88cf2c2ed in pfs_spawn_thread ()

#5  0x00007fd88bed67f1 in start_thread () from /lib64/libpthread.so.0

#6  0x00007fd88ae56ccd in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fd8868b9700 (LWP 1658)):

#0  0x00007fd88beda75b in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0

#1  0x00007fd88cfbb0fa in timer_handler ()

#2  0x00007fd88cf2c2ed in pfs_spawn_thread ()

#3  0x00007fd88bed67f1 in start_thread () from /lib64/libpthread.so.0

#4  0x00007fd88ae56ccd in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fd8846d9700 (LWP 1689)):

#0  0x00007fd88beda75b in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0

#1  0x00007fd88c7d3c3d in one_thread_per_connection_end(THD*, bool) () at /home/buildbot/buildbot/build/include/mysql/psi/mysql_thread.h:1182

#2  0x00007fd88c94d046 in do_handle_one_connection(CONNECT*) () at /home/buildbot/buildbot/build/sql/sql_connect.cc:1355

#3  0x00007fd88c94d1fd in handle_one_connection () at /home/buildbot/buildbot/build/sql/sql_connect.cc:1241

#4  0x00007fd88cf2c2ed in pfs_spawn_thread ()

#5  0x00007fd88bed67f1 in start_thread () from /lib64/libpthread.so.0

#6  0x00007fd88ae56ccd in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fd88c2fd720 (LWP 1645)):

#0  0x00007fd88ae4d613 in poll () from /lib64/libc.so.6

#1  0x00007fd88c7dacda in handle_connections_sockets() () at /home/buildbot/buildbot/build/sql/mysqld.cc:6726

#2  0x00007fd88c7dc388 in mysqld_main(int, char**) () at /home/buildbot/buildbot/build/sql/mysqld.cc:6194

#3  0x00007fd88ad8fcdd in __libc_start_main () from /lib64/libc.so.6

#4  0x00007fd88c7cf921 in _start ()

Thread 1 (Thread 0x7fd88468f700 (LWP 2139)):

#0  0x00007fd88bedb63c in pthread_kill () from /lib64/libpthread.so.0

#1  0x00007fd88ca0ff3e in handle_fatal_signal ()

#2  <signal handler called>

#3  0x00007fd885d01ca7 in XML2NODELIST::GetItem(_global*, int, XMLNODE*) () at /home/buildbot/buildbot/build/storage/connect/libdoc.cpp:1197

#4  0x00007fd885d043b3 in XMLCOL::WriteColumn(_global*) () at /home/buildbot/buildbot/build/storage/connect/tabxml.cpp:1784

#5  0x00007fd885c5f0fe in CntWriteRow(_global*, TDB*) () from /usr/local/mariadb-10.2.42-linux-x86_64/lib/plugin/ha_connect.so

#6  0x00007fd885c53678 in ha_connect::write_row(unsigned char*) () at /home/buildbot/buildbot/build/storage/connect/ha_connect.cc:3721

#7  0x00007fd88ca1a7d3 in handler::ha_write_row(unsigned char*) () at /home/buildbot/buildbot/build/sql/handler.cc:6118

#8  0x00007fd88c85ad8f in write_record(THD*, TABLE*, st_copy_info*) () at /home/buildbot/buildbot/build/sql/sql_insert.cc:1951

#9  0x00007fd88c8611e2 in mysql_insert(THD*, TABLE_LIST*, List<Item>&, List<List<Item> >&, List<Item>&, List<Item>&, enum_duplicates, bool) () at /home/buildbot/buildbot/build/sql/sql_insert.cc:1066

#10 0x00007fd88c877e2b in mysql_execute_command(THD*) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:4219

#11 0x00007fd88c87e265 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:7793

#12 0x00007fd88c8803ce in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:1828

#13 0x00007fd88c88182a in do_command(THD*) () at /home/buildbot/buildbot/build/sql/sql_parse.cc:1382

#14 0x00007fd88c94d0e6 in do_handle_one_connection(CONNECT*) () at /home/buildbot/buildbot/build/sql/sql_connect.cc:1336

#15 0x00007fd88c94d1fd in handle_one_connection () at /home/buildbot/buildbot/build/sql/sql_connect.cc:1241

#16 0x00007fd88cf2c2ed in pfs_spawn_thread ()

#17 0x00007fd88bed67f1 in start_thread () from /lib64/libpthread.so.0

#18 0x00007fd88ae56ccd in clone () from /lib64/libc.so.6

 - deleting it, already saved 0

 - saving '/dev/shm/var/3/log/connect.misc/' to '/dev/shm/var/log/connect.misc/'

connect.misc                             w5 [ fail ]

        Test ended at 2022-01-30 10:42:49

CURRENT_TEST: connect.misc

mysqltest: At line 62: query 'create table beers (

`Name` char(16) xpath='brandName',

`Origin` char(16) xpath='origin',

`Description` char(32) xpath='details')

engine=CONNECT table_type=XML file_name='$MYSQLTEST_VARDIR/tmp/beer.xml'

tabname='table' option_list='rownode=tr,colnode=td%n'' failed: 1105: Unsupported table type XML