/tags/glusterfs/Recent content in Glusterfs on LifeHugoen-usFri, 21 Sep 2018 08:16:00 +0530/post/2018/2018-09-21-glusterfs-on-fedora-on-break-geo-replication/Fri, 21 Sep 2018 08:16:00 +0530/post/2018/2018-09-21-glusterfs-on-fedora-on-break-geo-replication/<p>GlusterFS geo-replication can fail on Fedora due to a missing dynamic library symlink.</p> <p>Checking <code>/var/log/glusterfs/geo-replication/gv0_node1/gsyncd.log</code> reveals:</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-python" data-lang="python"><span style="display:flex;"><span><span style="color:#66d9ef">class</span> <span style="color:#a6e22e">Changes</span>(object): </span></span><span style="display:flex;"><span> File <span style="color:#e6db74">&#34;/usr/libexec/glusterfs/python/syncdaemon/libgfchangelog.py&#34;</span>, line <span style="color:#ae81ff">19</span>, <span style="color:#f92672">in</span> Changes </span></span><span style="display:flex;"><span> use_errno<span style="color:#f92672">=</span><span style="color:#66d9ef">True</span>) </span></span><span style="display:flex;"><span> File <span style="color:#e6db74">&#34;/usr/lib64/python2.7/ctypes/__init__.py&#34;</span>, line <span style="color:#ae81ff">361</span>, <span style="color:#f92672">in</span> <span style="color:#a6e22e">__init__</span> </span></span><span style="display:flex;"><span> self<span style="color:#f92672">.</span>_handle <span style="color:#f92672">=</span> _dlopen(self<span style="color:#f92672">.</span>_name, mode) </span></span><span style="display:flex;"><span><span style="color:#a6e22e">OSError</span>: <span style="color:#f92672">/</span>usr<span style="color:#f92672">/</span>lib64<span style="color:#f92672">/</span>libgfchangelog<span style="color:#f92672">.</span>so: cannot open shared object file: No such file <span style="color:#f92672">or</span> directory </span></span></code></pre></div><p>Looking at <code>/usr/libexec/glusterfs/python/syncdaemon/libgfchangelog.py</code>:</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-python" data-lang="python"><span style="display:flex;"><span><span style="color:#66d9ef">class</span> <span style="color:#a6e22e">Changes</span>(object): </span></span><span style="display:flex;"><span> libgfc <span style="color:#f92672">=</span> CDLL(<span style="color:#e6db74">&#34;/usr/lib64/libgfchangelog.so&#34;</span>, mode<span style="color:#f92672">=</span>RTLD_GLOBAL, </span></span><span style="display:flex;"><span> use_errno<span style="color:#f92672">=</span><span style="color:#66d9ef">True</span>) </span></span></code></pre></div><p>On Fedora and RHEL, bare <code>.so</code> library symlinks (as opposed to versioned sonames like <code>.so.0</code>) are provided by the <code>-devel</code> development packages. To resolve this error, install the development package:</p>