OCIEnvCreate() fails on Mac OSX from time to time

user11763611

Hello,

A simple OCI program doing OCIEnvCreate() fails from time to time...

It can be reproduced on:

Darwin orange.strasbourg.4js.com 19.2.0 Darwin Kernel Version 19.2.0: Sat Nov 9 03:47:04 PST 2019; root:xnu-6153.61.1~20/RELEASE_X86_64 x86_64

But not on:

Darwin melon.strasbourg.4js.com 18.2.0 Darwin Kernel Version 18.2.0: Fri Oct 5 19:41:49 PDT 2018; root:xnu-4903.221.2~2/RELEASE_X86_64 x86_64

Using same Oracle client lib on both machines:

ORANGE:

[email protected] sf % otool -L ./ocitest1.bin

./ocitest1.bin:

@rpath/libclntsh.dylib.18.1 (compatibility version 0.0.0, current version 0.0.0)

/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.200.5)

[email protected] sf % sum /usr/local/lib/libclntsh.dylib.18.1

57049 92741 /usr/local/lib/libclntsh.dylib.18.1

MELON:

melon:sf comp$ otool -L ./ocitest1.bin

./ocitest1.bin:

    @rpath/libclntsh.dylib.18.1 (compatibility version 0.0.0, current version 0.0.0)

    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.200.5)

melon:sf comp$ sum /usr/local/lib/libclntsh.dylib.18.1

57049 92741 /usr/local/lib/libclntsh.dylib.18.1

Also tested on ORANGE with Oracle 19c:

[email protected] sf % install_name_tool -change @rpath/libclntsh.dylib.18.1 @rpath/libclntsh.dylib.19.1 ocitest1.bin

[email protected] sf % otool -L ./ocitest1.bin

./ocitest1.bin:

    @rpath/libclntsh.dylib.19.1 (compatibility version 0.0.0, current version 0.0.0)

    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.200.5)

[email protected] sf % ls -l /usr/local/lib/libclntsh.dylib.19.1

lrwxr-xr-x  1 root  wheel  51 Nov 12 11:21 /usr/local/lib/libclntsh.dylib.19.1 -> /usr/local/dbs/64bits/ora/19.3/libclntsh.dylib.19.1

[email protected] sf % sum /usr/local/lib/libclntsh.dylib.19.1

47022 95838 /usr/local/lib/libclntsh.dylib.19.1

To reproduce with ocitest1.c:

$ gcc -o ocitest1.bin ocitest1.c -I $ORACLE_HOME/sdk/include -L$ORACLE_HOME -lclntsh

$ while true; do ./ocitest1.bin UTF8112.STRASBOURG.4JS.COM orauser xxxxxxxxxx || break; done

Sometimes it fails in parent process:

... Parent... 65089

Error -1 at: Could not allocate env handle

>> Could not get Oracle error.

Sometimes in child process:

Parent... 68829

SQL Session connected...

Child... 68830

Error -1 at: Could not allocate env handle

>> Could not get Oracle error.

Child has failed!

Just in case:

[email protected] sf % ulimit -a

-t: cpu time (seconds)              unlimited

-f: file size (blocks)              unlimited

-d: data seg size (kbytes)          unlimited

-s: stack size (kbytes)             8192

-c: core file size (blocks)         0

-v: address space (kbytes)          unlimited

-l: locked-in-memory size (kbytes)  unlimited

-u: processes                       2784

-n: file descriptors                4096