https://time-friend.com/en/tags/upsource/Recent content in Upsource on Time FriendHugoen-GBWed, 29 Jul 2026 15:15:07 +0800https://time-friend.com/en/archive/centos-upsource-fix/Sat, 29 Sep 2018 19:33:33 +0000https://time-friend.com/en/archive/centos-upsource-fix/<h2 id="error">Error</h2> <p>When starting Upsource on Centos7, the following error occurred. Starting Upsource on Mac worked fine.</p> <pre tabindex="0"><code>[Upsource Error] Failed to start JetBrains Upsource 2018.2 due to unexpected exception: Native random generator does not seem to have enough entropy for JetBrains Upsource 2018.2 to start. [Upsource Error] You can fix it by switching to PRNG (with -Djava.security.egd=/dev/zrandom) or by reconfiguring your operation system to provide more random bits. </code></pre><h2 id="solution">Solution</h2> <ol> <li>Copy <code>upsource.jvmoptions.dist</code> to <code>upsource.jvmoptions</code></li> </ol> <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-bash" data-lang="bash"><span style="display:flex;"><span>cp $upsource_path/conf/upsource.jvmoptions.dist $upsource_path/conf/upsource.jvmoptions </span></span></code></pre></div><ol start="2"> <li>Edit <code>$upsource_path/conf/upsource.jvmoptions</code> file, add the following line at the end:</li> </ol> <pre tabindex="0"><code>-Djava.security.egd=/dev/zrandom </code></pre><ol start="3"> <li>Start</li> </ol> <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-bash" data-lang="bash"><span style="display:flex;"><span>$upsource_path/bin/upsource.sh start </span></span></code></pre></div>