"Thank you for your reply"
"ndb_12_out.log"
For help with below stacktrace consult:
https://dev.mysql.com/doc/refman/en/using-stack-trace.html
Also note that stack_bottom and thread_stack will always show up as zero.
stack_bottom = 0 thread_stack 0x0
/usr/local/bin/ndbd(my_print_stacktrace(unsigned char const*, unsigned long)+0x2e) [0x89128e]
/usr/local/bin/ndbd(ndb_print_stacktrace()+0x45) [0x849245]
/usr/local/bin/ndbd(ErrorReporter::handleError(int, char const*, char const*, NdbShutdownType)+0x1f) [0x7fd56f]
/usr/local/bin/ndbd(SimulatedBlock::progError(int, int, char const*, char const*) const+0xf2) [0x8629e2]
/usr/local/bin/ndbd(Dbtux::unlinkScan(Dbtux::NodeHandle&, Ptr<Dbtux::ScanOp>, unsigned int)+0xf7) [0x709c67]
/usr/local/bin/ndbd(Dbtux::relinkScan(Dbtux::ScanOp&, Dbtux::Frag&, bool, unsigned int)+0x12f) [0x70e52f]
/usr/local/bin/ndbd(Dbtux::execNEXT_SCANREQ(Signal*)+0xf5) [0x713945]
/usr/local/bin/ndbd(Dblqh::continue_next_scan_conf(Signal*, Dblqh::ScanRecord::ScanState, Dblqh::ScanRecord*)+0x6b) [0x6483db]
/usr/local/bin/ndbd(Dbtux::continue_scan(Signal*, Ptr<Dbtux::ScanOp>, Dbtux::Frag&, bool)+0x269) [0x70f779]
/usr/local/bin/ndbd(Dbtux::execNEXT_SCANREQ(Signal*)+0x91) [0x7138e1]
/usr/local/bin/ndbd(Dblqh::send_next_NEXT_SCANREQ(Signal*, SimulatedBlock*, void (SimulatedBlock::*)(Signal*), Dblqh::ScanRecord*, unsigned int)+0xfd) [0x60a6ed]
/usr/local/bin/ndbd(Dblqh::scanNextLoopLab(Signal*, unsigned int, unsigned int, Dblqh::ScanRecord*, Dblqh::Fragrecord*)+0x109) [0x60aac9]
/usr/local/bin/ndbd(Dblqh::continue_next_scan_conf(Signal*, Dblqh::ScanRecord::ScanState, Dblqh::ScanRecord*)+0x6b) [0x6483db]
/usr/local/bin/ndbd(Dbtux::continue_scan(Signal*, Ptr<Dbtux::ScanOp>, Dbtux::Frag&, bool)+0x940) [0x70fe50]
/usr/local/bin/ndbd(Dbtux::execACC_CHECK_SCAN(Signal*)+0xfc) [0x71498c]
/usr/local/bin/ndbd(Dblqh::checkLcpStopBlockedLab(Signal*, unsigned int)+0xe0) [0x6075c0]
/usr/local/bin/ndbd(Dblqh::execCONTINUEB(Signal*)+0x5f6) [0x650456]
/usr/local/bin/ndbd(FastScheduler::doJob(unsigned int)+0x1da) [0x85ef1a]
/usr/local/bin/ndbd(ThreadConfig::ipControlLoop(NdbThread*)+0x6b2) [0x86de12]
/usr/local/bin/ndbd(ndbd_run(bool, int, char const*, int, char const*, bool, bool, bool, unsigned int, int, int, unsigned long)+0x758) [0x4fb0e8]
/usr/local/bin/ndbd(real_main(int, char**)+0x2e5) [0x4f9225]
/usr/local/bin/ndbd(angel_run(char const*, Vector<BaseString> const&, char const*, int, char const*, bool, bool, bool, int, int)+0xfeb) [0x4f8dab]
/usr/local/bin/ndbd(real_main(int, char**)+0x34c) [0x4f928c]
/usr/local/bin/ndbd(main+0x37) [0x4f5407]
/lib64/libc.so.6(__libc_start_main+0xf3) [0x7f11c48377b3]
/usr/local/bin/ndbd() [0x4f6ae1]
2021-04-15 13:00:57 [ndbd] INFO -- ../../../../../../mysql-cluster-gpl-8.0.23/storage/ndb/src/kernel/blocks/dbtux/Dbtux.hpp
2021-04-15 13:00:57 [ndbd] INFO -- DBTUX (Line: 1036) 0x00000002 Check c_scanOpPool.getValidPtr(scanPtr) failed
2021-04-15 13:00:57 [ndbd] INFO -- Error handler shutting down system
2021-04-15 13:00:57 [ndbd] ALERT -- Node 12: Forced node shutdown completed. Caused by error 2341: 'Internal program error (failed ndbrequire)(Internal error, programming error or missing error message, please report a bug). Temporary error, restart node'.