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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2019/10/11 15:25:24 UTC
[GitHub] [pulsar] candlerb opened a new issue #5370: sql worker on Ubuntu
18: libprocname.so failing, and failing JVM vendor check
candlerb opened a new issue #5370: sql worker on Ubuntu 18: libprocname.so failing, and failing JVM vendor check
URL: https://github.com/apache/pulsar/issues/5370
**Describe the bug**
On Ubuntu 18.04, using the pulsar 2.4.1 binary distribution, the sql worker doesn't start.
After fixing python/python3 (#5369), an error is returned about the ELF format of `libprocname.so`. `file` and `nm` say that the file is corrupt.
**To Reproduce**
```
$ bin/pulsar sql-worker run
ERROR: ld.so: object '/home/ubuntu/apache-pulsar-2.4.1/lib/presto/bin/procname/Linux-x86_64/libprocname.so' from LD_PRELOAD cannot be preloaded (ELF file's phentsize not the expected size): ignored.
Presto requires an Oracle or OpenJDK JVM (found Private Build)
$ file lib/presto/bin/procname/Linux-x86_64/libprocname.so
lib/presto/bin/procname/Linux-x86_64/libprocname.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), corrupted program header size, corrupted section header size
$ nm -D --defined-only lib/presto/bin/procname/Linux-x86_64/libprocname.so
nm: lib/presto/bin/procname/Linux-x86_64/libprocname.so: File format not recognized
$ ls -l lib/presto/bin/procname/Linux-x86_64/libprocname.so
-rw-r--r-- 1 ubuntu ubuntu 4700 Aug 28 09:06 lib/presto/bin/procname/Linux-x86_64/libprocname.so
$ shasum lib/presto/bin/procname/Linux-x86_64/libprocname.so
5849887050c21d07eb87b4cd513e9135de20942f lib/presto/bin/procname/Linux-x86_64/libprocname.so
```
**Desktop (please complete the following information):**
- OS: Ubuntu 18.04, openjdk-8-jre-headless:amd64 8u222-b10-1ubuntu1~18.04.1
**Additional context**
I have checked that the extracted file I have matches the one in the tarball:
```
$ tar -tvzf apache-pulsar-2.4.1-bin.tar.gz | grep procname
drwxr-xr-x jia/staff 0 2019-08-28 09:06 apache-pulsar-2.4.1/lib/presto/bin/procname/
drwxr-xr-x jia/staff 0 2019-08-28 09:06 apache-pulsar-2.4.1/lib/presto/bin/procname/Linux-x86_64/
drwxr-xr-x jia/staff 0 2019-08-28 09:06 apache-pulsar-2.4.1/lib/presto/bin/procname/Linux-ppc64le/
-rw-r--r-- jia/staff 4700 2019-08-28 09:06 apache-pulsar-2.4.1/lib/presto/bin/procname/Linux-x86_64/libprocname.so
-rw-r--r-- jia/staff 70397 2019-08-28 09:06 apache-pulsar-2.4.1/lib/presto/bin/procname/Linux-ppc64le/libprocname.so
```
4700 bytes does seem rather small for an `.so`, but not impossibly so. Indeed, if I separately [download](https://prestosql.io/download.html) presto-server-3.2.0.tar.gz (895MB!) it contains a smaller file:
```
$ tar -tvzf presto-server-320.tar.gz | grep \\.so
-rw-r--r-- 0 0 0 4144 6 Oct 20:27 presto-server-320/bin/procname/Linux-x86_64/libprocname.so
-rw-r--r-- 0 0 0 69576 6 Oct 20:27 presto-server-320/bin/procname/Linux-ppc64le/libprocname.so
```
If I examine this file, it is *not* considered corrupt by Ubuntu:
```
$ file libprocname.so
libprocname.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, stripped
$ nm -D --defined-only libprocname.so
0000000000200838 A __bss_start
0000000000200838 A _edata
0000000000200848 A _end
00000000000005c8 T _fini
0000000000000428 T _init
$
```
If I use this to replace the one supplied by pulsar, the original ELF message goes away, but the sql worker still won't start, continuing to complain about JVM version.
```
$ bin/pulsar sql-worker run
Presto requires an Oracle or OpenJDK JVM (found Private Build)
```
However, I *am* using OpenJDK:
```
$ dpkg-query -l | grep openjdk
ii openjdk-8-jre-headless:amd64 8u222-b10-1ubuntu1~18.04.1 amd64 OpenJDK Java runtime, using Hotspot JIT (headless)
```
That error message appears in older versions of Presto source, but was removed in [this commit](https://github.com/prestodb/presto/commit/988f0f2e7bd0a33b2d0d2585cb70eab078fb226c) in Aug 2018. Could it simply be that is pulsar bundling an obsolete version of presto?
I believe the source of the "Private Build" text is here:
```
$ java -XshowSettings 2>&1 | grep vendor
java.specification.vendor = Oracle Corporation
java.vendor = Private Build
java.vendor.url = http://java.oracle.com/
java.vendor.url.bug = http://bugreport.sun.com/bugreport/
java.vm.specification.vendor = Oracle Corporation
java.vm.vendor = Private Build
```
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