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<div class="section" id="log-command-outputs">
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<span id="log-command-outputs"></span><h1>Log command outputs<a class="headerlink" href="#log-command-outputs" title="Permalink to this headline">¶</a></h1>
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<p>Log command outputs for later analysis, turned off by default.</p>
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<p>To turn it on, using <a class="reference internal" href="options.html"><span class="doc">options</span></a> as:</p>
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<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ options save-result <span class="nb">true</span>
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NAME BEFORE-VALUE AFTER-VALUE
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----------------------------------------
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save-result <span class="nb">false</span> <span class="nb">true</span>
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Affect<span class="o">(</span>row-cnt:1<span class="o">)</span> cost in <span class="m">3</span> ms.
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</pre></div>
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<p>F.Y.I</p>
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<ol class="simple">
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<li>logging file lies in: <code class="docutils literal notranslate"><span class="pre">{user.home}/logs/arthas-cache/result.log</span></code>;</li>
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<li>remember to clean up the file to save disk space.</li>
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<div class="section" id="asynchronous-log">
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<span id="asynchronous-log"></span><h2>Asynchronous log<a class="headerlink" href="#asynchronous-log" title="Permalink to this headline">¶</a></h2>
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<p>:notes: :notes:
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With the latest Arthas, you can log the outputs asynchronously in the background:</p>
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<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ trace Test t >> <span class="p">&</span>
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job id : <span class="m">2</span>
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cache location : /Users/zhuyong/logs/arthas-cache/28198/2
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</pre></div>
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<p>F.Y.I</p>
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<ol class="simple">
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<li><code class="docutils literal notranslate"><span class="pre">quit/exit</span></code> or <code class="docutils literal notranslate"><span class="pre">Ctrl+C</span></code> will not affect the asynchronous jobs :sparkles:;</li>
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<li>default timeout for the background job is 1 day (you can set it via <a class="reference internal" href="options.html"><span class="doc">options</span></a>);</li>
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<li>outputs will be save to the <code class="docutils literal notranslate"><span class="pre">cache</span> <span class="pre">location</span></code> now (no matter what <code class="docutils literal notranslate"><span class="pre">save-result</span></code> is - not <code class="docutils literal notranslate"><span class="pre">~/logs/arthas-cache/result.log</span></code> any more).</li>
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