Details
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Bug
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Status: Open (View Workflow)
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Critical
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Resolution: Unresolved
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25.10.0
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None
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None
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2026-1
Description
Casual MTR run on Jenkins with ES 11.8.3 triggered this issue. UPDATE fails in PP causing the whole query to fail. MCS plugin in MDB runtime failed to deliver ROLLBACK and moreover it returns something to MDB client(MTR test suite driver in this case) triggering next query. This sequence breaks pluging StateMachine.
The bug was triggered with mcs82_update_join MTR test.
Oct 03 11:43:54 jenkins-ubuntu-2404-amd64-clean-8g0czn ExeMgr[18831]: 54.368227 |1128|0|0| D 16 CAL0041: Start SQL statement: UPDATE t2 LEFT JOIN t1 on t1.t1_int=t2.t2_int SET t1.t1_char='xyz' WHERE t1_char is NULL; |mcs82_db|
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Oct 03 11:43:54 jenkins-ubuntu-2404-amd64-clean-8g0czn env[18831]: [134B blob data]
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Oct 03 11:43:54 jenkins-ubuntu-2404-amd64-clean-8g0czn env[18831]: [134B blob data]
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Oct 03 11:43:54 jenkins-ubuntu-2404-amd64-clean-8g0czn ExeMgr[18831]: 54.371199 |1128|0|0| D 16 CAL0041: Start SQL statement: SELECT * FROM t2 ORDER BY t2_int; |mcs82_db|
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Oct 03 11:43:54 jenkins-ubuntu-2404-amd64-clean-8g0czn controllernode[18816]: controllernode[18816]: 54.410466 |0|0|0| C 29 CAL0000: InetStreamSocket::readToMagic(): I/O error1: rc-1; poll signal interrupt ( POLLHUP POLLERR ) %%10%%
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Oct 03 11:43:54 jenkins-ubuntu-2404-amd64-clean-8g0czn controllernode[18816]: 54.410466 |0|0|0| C 29 CAL0000: InetStreamSocket::readToMagic(): I/O error1: rc-1; poll signal interrupt ( POLLHUP POLLERR ) %%10%%
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Oct 03 11:43:54 jenkins-ubuntu-2404-amd64-clean-8g0czn systemd[1]: mcs-primproc.service: Main process exited, code=killed, status=11/SEGV
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