I’m facing this kind of errors in a random way while doing testing about node recovery. (server reboot, clean up mysql directory, etc). Most of the times the recover process finish correctly but from time to time it fails with below message. It happens in 3 (same hw/config/os) nodes.
(mysqld 8.0.20-11.2) Percona XtraDB Cluster (GPL), Release rel11, Revision 9132e55, WSREP version 26.4.3. on CentOS 8
2020-10-10T13:56:33.087473Z 0 [Note] [MY-000000] [Galera] Flushing memory map to disk…
munmap_chunk(): invalid pointer
2020-10-10T13:58:03.717918Z 0 [Note] [MY-000000] [WSREP] Initiating SST cancellation
13:58:03 UTC - mysqld got signal 6 ;
Most likely, you have hit a bug, but this error can also be caused by malfunctioning hardware.
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 0x46000
/usr/sbin/mysqld(my_print_stacktrace(unsigned char const*, unsigned long)+0x41) [0x2048bd1]
/usr/sbin/mysqld(handle_fatal_signal+0x33b) [0x124937b]
/lib64/libpthread.so.0(+0x12dd0) [0x7f2b746afdd0]
/lib64/libc.so.6(gsignal+0x10f) [0x7f2b723b770f]
/lib64/libc.so.6(abort+0x127) [0x7f2b723a1b25]
/lib64/libc.so.6(+0x7a897) [0x7f2b723fa897]
/lib64/libc.so.6(+0x80fdc) [0x7f2b72400fdc]
/lib64/libc.so.6(+0x8128c) [0x7f2b7240128c]
/usr/lib64/galera4/libgalera_smm.so(+0x990cc) [0x7f2b6536c0cc]
/usr/lib64/galera4/libgalera_smm.so(+0x80540) [0x7f2b65353540]
/usr/lib64/galera4/libgalera_smm.so(+0x1ac7bb) [0x7f2b6547f7bb]
/lib64/libpthread.so.0(+0x82de) [0x7f2b746a52de]
/lib64/libc.so.6(clone+0x43) [0x7f2b7247be83]
You may download the Percona XtraDB Cluster operations manual by visiting
http://www.percona.com/software/percona-xtradb-cluster/. You may find information
in the manual which will help you identify the cause of the crash.
Anyone with similar issues?