Issue with Datastax Cassandra driver for PHP on CentOS 6.7: undefined symbol: cass_cluster_set_whitelist_dc_filtering in Unknown on line 0

Question

I have installed the datastax cassandra driver extension for PHP using the following process:

Installed Dependencies: automake cmake gcc gcc-c++ git libtool openssl-devel wget gmp gmp-devel boost php-devel pcre-devel git libuv gmp
Installed cpp-driver by compiling from the source
Installed PHP Datastax cassandra driver from the source
Added extension in the /etc/php.ini file

When I try to execute the php file to connect to the cassandra cluster, I get the following error:

 PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/cassandra.so' 
- /usr/lib64/php/modules/cassandra.so: undefined symbol: cass_cluster_set_whitelist_dc_filtering in Unknown on line 0

I have tried to install again using the binaries instead and I am still facing the same issue.

Here is the ldd output:

ldd /usr/lib64/php/modules/cassandra.so
    linux-vdso.so.1 =>  (0x00007ffe9ad9a000)
    libgmp.so.3 => /usr/lib64/libgmp.so.3 (0x00007f2377ca2000)
    libssl.so.10 => /usr/lib64/libssl.so.10 (0x00007f2377a35000)
    libz.so.1 => /lib64/libz.so.1 (0x00007f237781f000)
    libuv.so.1 => /usr/lib64/libuv.so.1 (0x00007f23775fe000)
    librt.so.1 => /lib64/librt.so.1 (0x00007f23773f5000)
    libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f23771d8000)
    libnsl.so.1 => /lib64/libnsl.so.1 (0x00007f2376fbf000)
    libdl.so.2 => /lib64/libdl.so.2 (0x00007f2376dba000)
    libm.so.6 => /lib64/libm.so.6 (0x00007f2376b36000)
    libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00007f2376830000)
    libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f2376619000)
    libc.so.6 => /lib64/libc.so.6 (0x00007f2376285000)
    libgssapi_krb5.so.2 => /lib64/libgssapi_krb5.so.2 (0x00007f2376041000)
    libkrb5.so.3 => /lib64/libkrb5.so.3 (0x00007f2375d59000)
    libcom_err.so.2 => /lib64/libcom_err.so.2 (0x00007f2375b55000)
    libk5crypto.so.3 => /lib64/libk5crypto.so.3 (0x00007f2375929000)
    libcrypto.so.10 => /usr/lib64/libcrypto.so.10 (0x00007f2375544000)
    /lib64/ld-linux-x86-64.so.2 (0x00000030d4a00000)
    libkrb5support.so.0 => /lib64/libkrb5support.so.0 (0x00007f2375339000)
    libkeyutils.so.1 => /lib64/libkeyutils.so.1 (0x00007f2375135000)
    libresolv.so.2 => /lib64/libresolv.so.2 (0x00007f2374f1b000)
    libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f2374cfb000)

Thanks for your help.

Fero Fero · Accepted Answer · 2016-05-19T12:48:09

It appears you might be using the wrong version of the cpp-driver for the php-driver extension. Currently on php-driver master the cpp-driver submodule is pointing to v2.2.2 whereas the blacklist, whitelist DC, and blacklist DC load balancing policies were added in v2.3.0.

Recommend building and installing the latest release of the cpp-driver and then perform the build and installation steps again for the php-driver source you are utilizing.

Issue with Datastax Cassandra driver for PHP on CentOS 6.7: undefined symbol: cass_cluster_set_whitelist_dc_filtering in Unknown on line 0

1 Answers