Start PS with --log-bin option
Add data in PS using sysbench: 10 tables, 1000 rows in each table
Change the row format of a table continuously
( for ((i=1; i<=10; i++)); do # Check if database is up otherwise exit the loop ${mysqldir}/bin//mysqladmin ping --user=root --socket=${mysqldir}/socket.sock 2>/dev/null 1>&2 if [ "$?" -ne 0 ]; then break fi ${mysqldir}/bin/mysql -uroot -S${mysqldir}/socket.sock -e "ALTER TABLE test.sbtest2 ROW_FORMAT=COMPRESSED;" ${mysqldir}/bin/mysql -uroot -S${mysqldir}/socket.sock -e "ALTER TABLE test.sbtest2 ROW_FORMAT=DYNAMIC;" ${mysqldir}/bin/mysql -uroot -S${mysqldir}/socket.sock -e "ALTER TABLE test.sbtest2 ROW_FORMAT=COMPACT;" ${mysqldir}/bin/mysql -uroot -S${mysqldir}/socket.sock -e "ALTER TABLE test.sbtest2 ROW_FORMAT=REDUNDANT;" done ) &
Take full backup with lock-ddl
/home/mchawla/pxb130219_2.4_debug/bin/xtrabackup --user=root --password='' --backup --target-dir=/home/mchawla/dbbackup_02_04_2019/full -S /home/mchawla/PS241218-percona-server-5.7.24-27-linux-x86_64-debug/socket.sock --datadir=/home/mchawla/PS241218-percona-server-5.7.24-27-linux-x86_64-debug/data --lock-ddl
Start a data load on the server using sysbench
Take incremental backup with lock-ddl
/home/mchawla/pxb130219_2.4_debug/bin/xtrabackup --user=root --password='' --backup --target-dir=/home/mchawla/dbbackup_02_04_2019/inc --incremental-basedir=/home/mchawla/dbbackup_02_04_2019/full -S /home/mchawla/PS241218-percona-server-5.7.24-27-linux-x86_64-debug/socket.sock --datadir=/home/mchawla/PS241218-percona-server-5.7.24-27-linux-x86_64-debug/data --lock-ddl
Prepare the full backup
/home/mchawla/pxb130219_2.4_debug/bin/xtrabackup --user=root --password='' --prepare --apply-log-only --target_dir=/home/mchawla/dbbackup_02_04_2019/full
Prepare the incremental backup
/home/mchawla/pxb130219_2.4_debug/bin/xtrabackup --user=root --password='' --prepare --target_dir=/home/mchawla/dbbackup_02_04_2019/full --incremental-dir=/home/mchawla/dbbackup_02_04_2019/inc
PXB crashes during prepare
PXB2.4 crash log:
InnoDB: Assertion failure in thread 140450633254656 in file rem0rec.ic line 435 InnoDB: Failing assertion: ret > 0 InnoDB: We intentionally generate a memory trap. InnoDB: Submit a detailed bug report to http://bugs.mysql.com. InnoDB: If you get repeated assertion failures or crashes, even InnoDB: immediately after the mysqld startup, there may be InnoDB: corruption in the InnoDB tablespace. Please refer to InnoDB: http://dev.mysql.com/doc/refman/5.7/en/forcing-innodb-recovery.html InnoDB: about forcing recovery. 06:38:10 UTC - xtrabackup got signal 6 ; This could be because you hit a bug or data is corrupted. This error can also be caused by malfunctioning hardware. Attempting to collect some information that could help diagnose the problem. As this is a crash and something is definitely wrong, the information collection process might fail. Thread pointer: 0x0 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 = 0 thread_stack 0x10000 /home/mchawla/pxb130219_2.4_debug/bin/xtrabackup(my_print_stacktrace+0x35)[0x157aab9] /home/mchawla/pxb130219_2.4_debug/bin/xtrabackup(handle_fatal_signal+0x2a5)[0x131d000] /usr/lib64/libpthread.so.0(+0xf5d0)[0x7fbd3f1895d0] /usr/lib64/libc.so.6(gsignal+0x37)[0x7fbd3ce04207] /usr/lib64/libc.so.6(abort+0x148)[0x7fbd3ce058f8] /home/mchawla/pxb130219_2.4_debug/bin/xtrabackup[0x1148f45] /home/mchawla/pxb130219_2.4_debug/bin/xtrabackup[0x11b0282] /home/mchawla/pxb130219_2.4_debug/bin/xtrabackup(_Z20rec_get_offsets_funcPKhPK12dict_index_tPmmPKcmPP16mem_block_info_t+0x12d)[0x11b2472] /home/mchawla/pxb130219_2.4_debug/bin/xtrabackup(_Z25page_cur_parse_insert_recmPKhS0_P11buf_block_tP12dict_index_tP5mtr_t+0x465)[0x102029a] /home/mchawla/pxb130219_2.4_debug/bin/xtrabackup[0x118ae9e] /home/mchawla/pxb130219_2.4_debug/bin/xtrabackup(_Z22recv_recover_page_funcmP11buf_block_t+0x650)[0x118cc9c] /home/mchawla/pxb130219_2.4_debug/bin/xtrabackup(_Z20buf_page_io_completeP10buf_page_tb+0x82f)[0x11a8cef] /home/mchawla/pxb130219_2.4_debug/bin/xtrabackup(_Z12fil_aio_waitm+0x1b1)[0x1094749] /home/mchawla/pxb130219_2.4_debug/bin/xtrabackup(io_handler_thread+0x5b)[0x10e16b6] /usr/lib64/libpthread.so.0(+0x7dd5)[0x7fbd3f181dd5] /usr/lib64/libc.so.6(clone+0x6d)[0x7fbd3cecbead]
PXB8.0 crash log:
InnoDB: Assertion failure: log0recv.cc:1940:!page || (page_type == FIL_PAGE_INDEX || page_type == FIL_PAGE_SDI || page_type == FIL_PAGE_RTREE) InnoDB: thread 140433787586304InnoDB: We intentionally generate a memory trap. InnoDB: Submit a detailed bug report to https://jira.percona.com/projects/PXB. InnoDB: If you get repeated assertion failures or crashes, even InnoDB: immediately after the mysqld startup, there may be InnoDB: corruption in the InnoDB tablespace. Please refer to InnoDB: http://dev.mysql.com/doc/refman/8.0/en/forcing-innodb-recovery.html InnoDB: about forcing recovery. 11:12:18 UTC - mysqld got signal 6 ; 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. Attempting to collect some information that could help diagnose the problem. As this is a crash and something is definitely wrong, the information collection process might fail. key_buffer_size=0 read_buffer_size=131072 max_used_connections=0 max_threads=0 thread_count=0 connection_count=0 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 0 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. Thread pointer: 0x0 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... 60% Extending tablespace : 25 space name: test/sbtest2 to new size: 256 pages during recovery. Extending tablespace : 25 space name: test/sbtest2 to new size: 320 pages during recovery. Extending tablespace : 25 space name: test/sbtest2 to new size: 384 pages during recovery. Extending tablespace : 25 space name: test/sbtest2 to new size: 448 pages during recovery. stack_bottom = 0 thread_stack 0x46000 Extending tablespace : 25 space name: test/sbtest2 to new size: 512 pages during recovery. /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup(my_print_stacktrace(unsigned char*, unsigned long)+0x43) [0x4337809] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup(handle_fatal_signal+0x3e3) [0x2ee9a46] /usr/lib64/libpthread.so.0(+0xf5d0) [0x7fb951c405d0] /usr/lib64/libc.so.6(gsignal+0x37) [0x7fb94f8bb207] /usr/lib64/libc.so.6(abort+0x148) [0x7fb94f8bc8f8] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup() [0x34e6f2e] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup() [0x330b26c] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup(recv_recover_page_func(bool, buf_block_t*)+0x62c) [0x330d04d] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup(buf_page_io_complete(buf_page_t*, bool)+0x64f) [0x307a25f] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup(fil_aio_wait(unsigned long)+0x1ac) [0x315f903] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup() [0x345ed91] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup(void std::__invoke_impl<void, void (*&)(unsigned long), unsigned long&>(std::__invoke_other, void (*&)(unsigned long), unsigned long&)+0x34) [0x2873ff4] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup(std::__invoke_result<void (*&)(unsigned long), unsigned long&>::type std::__invoke<void (*&)(unsigned long), unsigned long&>(void (*&)(unsigned long), unsigned long&)+0x3f) [0x2873ba1] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup(void std::_Bind<void (*(unsigned long))(unsigned long)>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>)+0x48) [0x287374e] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup(void std::_Bind<void (*(unsigned long))(unsigned long)>::operator()<, void>()+0x2a) [0x2873088] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup(void Runnable::operator()<void (*)(unsigned long), unsigned long>(void (*&&)(unsigned long), unsigned long&&)+0x5d) [0x2872043] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup(void std::__invoke_impl<void, Runnable, void (*)(unsigned long), unsigned long>(std::__invoke_other, Runnable&&, void (*&&)(unsigned long), unsigned long&&)+0x4f) [0x2870169] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup(std::__invoke_result<Runnable, void (*)(unsigned long), unsigned long>::type std::__invoke<Runnable, void (*)(unsigned long), unsigned long>(Runnable&&, void (*&&)(unsigned long), unsigned long&&)+0x57) [0x286db51] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup(decltype (__invoke((_S_declval<0ul>)(), (_S_declval<1ul>)(), (_S_declval<2ul>)())) std::thread::_Invoker<std::tuple<Runnable, void (*)(unsigned long), unsigned long> >::_M_invoke<0ul, 1ul, 2ul>(std::_Index_tuple<0ul, 1ul, 2ul>)+0x5f) [0x28749fb] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup(std::thread::_Invoker<std::tuple<Runnable, void (*)(unsigned long), unsigned long> >::operator()()+0x1d) [0x2874855] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup(std::thread::_State_impl<std::thread::_Invoker<std::tuple<Runnable, void (*)(unsigned long), unsigned long> > >::_M_run()+0x1c) [0x287456e] /home/mchawla/pxb_rocksdb_8_0_5_debug/bin/xtrabackup() [0x4667a8f] /usr/lib64/libpthread.so.0(+0x7dd5) [0x7fb951c38dd5] /usr/lib64/libc.so.6(clone+0x6d) [0x7fb94f982ead]
Logs attached for both PXB2.4 and PXB8.0.