Graph Server Crashes Due To Core Dump
(Doc ID 3060761.1)
Last updated on NOVEMBER 25, 2024
Applies to:
Gen 2 Exadata Cloud at Customer - Version N/A to N/A [Release All Releases]Oracle Graph Server and Client - Version 23.1 and later
Oracle Cloud Infrastructure - Exadata Cloud Service - Version N/A to N/A [Release N/A]
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A to N/A
Information in this document applies to any platform.
Symptoms
With the latest available version of Graph Server (24.4), the service crashes due to a java core dump and had to be manually restarted:
Nov 13 06:48:53 myhost bash[<some_pid>]: #
Nov 13 06:48:53 myhost bash[<some_pid>]: # A fatal error has been detected by the Java Runtime Environment:
Nov 13 06:48:53 myhost bash[<some_pid>]: #
Nov 13 06:48:53 myhost bash[<some_pid>]: # SIGSEGV (0xb) at pc=0x00007ef23fa2bb70, pid=<some_pid>, tid=1375056
Nov 13 06:48:53 myhost bash[<some_pid>]: #
Nov 13 06:48:53 myhost bash[<some_pid>]: # JRE version: Java(TM) SE Runtime Environment (17.0.11+7) (build 17.0.11+7-LTS-207)
Nov 13 06:48:53 myhost bash[<some_pid>]: # Java VM: Java HotSpot(TM) 64-Bit Server VM (17.0.11+7-LTS-207, mixed mode, sharing, tiered, compressed class ptrs, g1 gc, linux-amd64)
Nov 13 06:48:53 myhost bash[<some_pid>]: # Problematic frame:
Nov 13 06:48:53 myhost bash[<some_pid>]: # C [libpgx_models.so+0x1d7b70] c10::intrusive_ptr<c10::TensorImpl, c10::UndefinedTensorImpl>::operator->() const+0xc
Nov 13 06:48:53 myhost bash[<some_pid>]: #
Nov 13 06:48:53 myhost bash[<some_pid>]: # Core dump will be written. Default location: Core dumps may be processed with "/usr/lib/systemd/systemd-coredump %P %u %g %s %t %c %h %e" (or dumping to /opt/oracle/graph/pgx/bin/core.<some_pid>)
Nov 13 06:48:53 myhost bash[<some_pid>]: #
Nov 13 06:48:53 myhost bash[<some_pid>]: # An error report file with more information is saved as:
Nov 13 06:48:53 myhost bash[<some_pid>]: # /tmp/hs_err_pid<some_pid>.log
Nov 13 06:48:54 myhost bash[<some_pid>]: #
Nov 13 06:48:54 myhost bash[<some_pid>]: # If you would like to submit a bug report, please visit:
Nov 13 06:48:54 myhost bash[<some_pid>]: # https://bugreport.java.com/bugreport/crash.jsp
Nov 13 06:48:54 myhost bash[<some_pid>]: # The crash happened outside the Java Virtual Machine in native code.
Nov 13 06:48:54 myhost bash[<some_pid>]: # See problematic frame for where to report the bug.
Nov 13 06:48:54 myhost bash[<some_pid>]: #
Nov 13 06:48:55 myhost bash[829072]: start-server: line 58: <some_pid> Aborted (core dumped) $JAVA $JAVA_OPTS -cp "$CP" oracle.pgx.server.Main "$WAR" "$PGX_CONF_DIR/server.conf" "$@"
Nov 13 06:48:55 myhost systemd[1]: pgx.service: Main process exited, code=exited, status=134/n/a
Nov 13 06:48:55 myhost systemd[1]: pgx.service: Failed with result 'exit-code'.
Nov 13 06:48:53 myhost bash[<some_pid>]: # A fatal error has been detected by the Java Runtime Environment:
Nov 13 06:48:53 myhost bash[<some_pid>]: #
Nov 13 06:48:53 myhost bash[<some_pid>]: # SIGSEGV (0xb) at pc=0x00007ef23fa2bb70, pid=<some_pid>, tid=1375056
Nov 13 06:48:53 myhost bash[<some_pid>]: #
Nov 13 06:48:53 myhost bash[<some_pid>]: # JRE version: Java(TM) SE Runtime Environment (17.0.11+7) (build 17.0.11+7-LTS-207)
Nov 13 06:48:53 myhost bash[<some_pid>]: # Java VM: Java HotSpot(TM) 64-Bit Server VM (17.0.11+7-LTS-207, mixed mode, sharing, tiered, compressed class ptrs, g1 gc, linux-amd64)
Nov 13 06:48:53 myhost bash[<some_pid>]: # Problematic frame:
Nov 13 06:48:53 myhost bash[<some_pid>]: # C [libpgx_models.so+0x1d7b70] c10::intrusive_ptr<c10::TensorImpl, c10::UndefinedTensorImpl>::operator->() const+0xc
Nov 13 06:48:53 myhost bash[<some_pid>]: #
Nov 13 06:48:53 myhost bash[<some_pid>]: # Core dump will be written. Default location: Core dumps may be processed with "/usr/lib/systemd/systemd-coredump %P %u %g %s %t %c %h %e" (or dumping to /opt/oracle/graph/pgx/bin/core.<some_pid>)
Nov 13 06:48:53 myhost bash[<some_pid>]: #
Nov 13 06:48:53 myhost bash[<some_pid>]: # An error report file with more information is saved as:
Nov 13 06:48:53 myhost bash[<some_pid>]: # /tmp/hs_err_pid<some_pid>.log
Nov 13 06:48:54 myhost bash[<some_pid>]: #
Nov 13 06:48:54 myhost bash[<some_pid>]: # If you would like to submit a bug report, please visit:
Nov 13 06:48:54 myhost bash[<some_pid>]: # https://bugreport.java.com/bugreport/crash.jsp
Nov 13 06:48:54 myhost bash[<some_pid>]: # The crash happened outside the Java Virtual Machine in native code.
Nov 13 06:48:54 myhost bash[<some_pid>]: # See problematic frame for where to report the bug.
Nov 13 06:48:54 myhost bash[<some_pid>]: #
Nov 13 06:48:55 myhost bash[829072]: start-server: line 58: <some_pid> Aborted (core dumped) $JAVA $JAVA_OPTS -cp "$CP" oracle.pgx.server.Main "$WAR" "$PGX_CONF_DIR/server.conf" "$@"
Nov 13 06:48:55 myhost systemd[1]: pgx.service: Main process exited, code=exited, status=134/n/a
Nov 13 06:48:55 myhost systemd[1]: pgx.service: Failed with result 'exit-code'.
Changes
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |