presto-postgresql tests fail on ppc64le

ENV: arch=ppc64le os=RHEL7.6 maven=3.6.3

I was able to compile presto commit c51b285 on ppc64le RHEL 7.6 as mvn install -DskipTests. However, there were test failures for presto-postgresql caused by the following error:

io.airlift.command.CommandFailedException: [/tmp/testing-postgresql-server5907429493503395537/bin/pg_ctl, stop, -D, /tmp/testing-postgresql-server5907429493503395537/data, -m, fast, -t, 5, -w] failed to start: Cannot run program "/tmp/testing-postgresql-server5907429493503395537/bin/pg_ctl" (in directory "/root/presto/presto-postgresql/."): error=2, No such file or directory

After some debugging, I found that the issue was due to missing postgresql-Linux-ppc64le.tar.gz in ~/.m2/repository/com/facebook/airlift/testing-postgresql-server/9.6.3-4/testing-postgresql-server-9.6.3-4.jar. I could get this particular issue resolved by adding the necessary binaries, libraries, etc. from rh-postgresql96 installation from my setup to postgresql-Linux-ppc64le.tar.gz and then adding that as a part of testing-postgresql-server-9.6.3-4.jar in the local maven repo.

However, I started getting a different error after that:

2020-05-13T10:33:14.269-0500 SEVERE could not stop postmaster in /tmp/testing-postgresql-server9157088070576433197
java.lang.RuntimeException: io.airlift.command.CommandFailedException: [/tmp/testing-postgresql-server9157088070576433197/bin/pg_ctl, stop, -D, /tmp/testing-postgresql-server9157088070576433197/data, -m, fast, -t, 5, -w] exited with 1
pg_ctl: directory "/tmp/testing-postgresql-server9157088070576433197/data" does not exist

I tried creating a directory data as a part of the tarball in the jar itself alongside the bin, lib, etc. directories. But that didn’t help either.

Please provide me a pointer to help resolve this issue.

Thanks in advance!

[rschlussel]

@rschlussel I have a question regarding the cross OS viability of the jars generated by these repos. e.g. hadoop-apache2-2.7.4-7.jar which gets downloaded from central maven repo has libhadoop.so, libsnappy.so in nativelib/Linux-ppc64le/ directory. But since those are not compatible with RHEL 7.6 ppc64le (maybe compatible with ubuntu), it resulted in an error java.lang.RuntimeException: failed to load Hadoop native library when I tried to run tests for presto-hive, etc. and when I tried executing the presto-server which was built.

So, my question is, is it OK to focus on a specific OS for ppc64le similar to what’s done for x86_64 here?

yeah, if the jars are not compatible across different oses , it’s fine to focus on a particular os

[amitsadaphule]

OK. Thanks for the feedback! I’ll raise another PR and follow your instructions.