I have now... So far I think the issues I've had are not related to this, but I wanted to be sure in case it should be something that needs to be patched. I've had some jobs run successfully but this warning appears in the logs.
Regards, James On 18 February 2016 at 12:23, Ted Yu <yuzhih...@gmail.com> wrote: > Have you seen this ? > > HADOOP-10988 > > Cheers > > On Thu, Feb 18, 2016 at 3:39 AM, James Hammerton <ja...@gluru.co> wrote: > >> HI, >> >> I am seeing warnings like this in the logs when I run Spark jobs: >> >> OpenJDK 64-Bit Server VM warning: You have loaded library >> /root/ephemeral-hdfs/lib/native/libhadoop.so.1.0.0 which might have disabled >> stack guard. The VM will try to fix the stack guard now. >> It's highly recommended that you fix the library with 'execstack -c >> <libfile>', or link it with '-z noexecstack'. >> >> >> I used spark-ec2 to launch the cluster with the default AMI, Spark 1.5.2, >> hadoop major version 2.4. I altered the jdk to be openjdk 8 as I'd written >> some jobs in Java 8. The 6 workers nodes are m4.2xlarge and master is >> m4.large. >> >> Could this contribute to any problems running the jobs? >> >> Regards, >> >> James >> > >
