https://blog.margrop.net/tag/jvm/ Recent content in Jvm on 魔都水滴 Hugo -- gohugo.io zh-CN Tue, 30 Mar 2021 09:54:54 +0800 https://blog.margrop.net/post/gperftools-install-analysis-memory-out-of-heap/ Tue, 30 Mar 2021 09:54:54 +0800 https://blog.margrop.net/post/gperftools-install-analysis-memory-out-of-heap/ <h1 id="centos">CentOS</h1> <ul> <li>使用 yum 安装</li> </ul> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>yum install gperftools libunwind </span></span></code></pre></div><ul> <li>可选，PDF 支持</li> </ul> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>yum install graphviz </span></span></code></pre></div><ul> <li>设置环境变量</li> </ul> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>export LD_PRELOAD<span style="color:#f92672">=</span>/usr/lib64/libtcmalloc.so </span></span><span style="display:flex;"><span>export HEAPPROFILE<span style="color:#f92672">=</span>/DATA1/admin_tmp/gzip </span></span></code></pre></div> https://blog.margrop.net/post/springboot-devtools-terrible/ Wed, 03 Mar 2021 18:23:39 +0800 https://blog.margrop.net/post/springboot-devtools-terrible/ <p>最近在SpringBoot的项目中新增了不少改动，然后就碰到了一个非常奇怪的问题。</p> <h1 id="hibernate数据库查询报错"><code>Hibernate</code>数据库查询报错</h1> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-java" data-lang="java"><span style="display:flex;"><span>2021<span style="color:#f92672">-</span>03<span style="color:#f92672">-</span>03 17:08:28.<span style="color:#a6e22e">016</span> ERROR 36216 <span style="color:#f92672">---</span> <span style="color:#f92672">[</span> XNIO<span style="color:#f92672">-</span>2 task<span style="color:#f92672">-</span>1<span style="color:#f92672">]</span> o.<span style="color:#a6e22e">h</span>.<span style="color:#a6e22e">p</span>.<span style="color:#a6e22e">access</span>.<span style="color:#a6e22e">spi</span>.<span style="color:#a6e22e">SetterMethodImpl</span> : HHH000123: IllegalArgumentException in <span style="color:#66d9ef">class</span><span style="color:#960050;background-color:#1e0010">:</span> <span style="color:#a6e22e">net</span>.<span style="color:#a6e22e">margrop</span>.<span style="color:#a6e22e">racentity</span>.<span style="color:#a6e22e">entity</span>.<span style="color:#a6e22e">Race</span>, setter method of property: raceType </span></span><span style="display:flex;"><span>2021<span style="color:#f92672">-</span>03<span style="color:#f92672">-</span>03 17:08:28.<span style="color:#a6e22e">016</span> ERROR 36216 <span style="color:#f92672">---</span> <span style="color:#f92672">[</span> XNIO<span style="color:#f92672">-</span>2 task<span style="color:#f92672">-</span>1<span style="color:#f92672">]</span> o.<span style="color:#a6e22e">h</span>.<span style="color:#a6e22e">p</span>.<span style="color:#a6e22e">access</span>.<span style="color:#a6e22e">spi</span>.<span style="color:#a6e22e">SetterMethodImpl</span> : HHH000091: Expected type: net.<span style="color:#a6e22e">margrop</span>.<span style="color:#a6e22e">raceapi</span>.<span style="color:#a6e22e">entity</span>.<span style="color:#a6e22e">permanent</span>.<span style="color:#a6e22e">RaceType</span>, actual value: net.<span style="color:#a6e22e">margrop</span>.<span style="color:#a6e22e">raceapi</span>.<span style="color:#a6e22e">entity</span>.<span style="color:#a6e22e">permanent</span>.<span style="color:#a6e22e">RaceType</span> </span></span></code></pre></div><p>这简直就是奇了怪了 <code>Expected type</code>和<code>actual value</code>完全是一模一样，可<code>Hibernate</code>认为不一样，这可咋整。</p>