Hi All, A recent patch to the Linux kernel <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1be7107fbe18eed3e319a6c3e83c78254b693acb> made changes to the stack guard gap and results in Impalad failing to start its JVM. If you recently upgraded your OS kernel or have automatic updates enabled you may find error messages similar to the following during startup:
# A fatal error has been detected by the Java Runtime Environment: # # SIGBUS (0x7) at pc=0x00007f028e8e046f, pid=3044, tid=139649127274624 The effects on Impala are documented in IMPALA-5578 <https://issues.apache.org/jira/browse/IMPALA-5578>. As a workaround you can pass a higher value of -Xss to the JVM by adding this to your environment. export JAVA_TOOL_OPTIONS="-Xss2m" Alternatively you can pin the current kernel version to one before the upgrade. Information on how to do so can be found here for apt-get <https://help.ubuntu.com/community/PinningHowto> and here for yum <https://access.redhat.com/solutions/98873>. Let's use the JIRA for further discussion. Cheers, Lars
