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<li>Log command outputs</li>
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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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<blockquote>
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<div>Log command outputs for later analysis</div></blockquote>
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<ul>
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<li><p class="first">By default, this behavior is turned off. To enable it, execute the command below:</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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<p>If the message above is output on the console, then this behavior is enabled successfully.</p>
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</li>
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<li><p class="first">Log file path</p>
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<p>The command execution result will be save in <code class="docutils literal notranslate"><span class="pre">{user.home}/logs/arthas-cache/result.log</span></code>. Pls. clean it up regularly to save disk space.</p>
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<div class="section" id="use-asynchronous-job-to-log">
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<span id="use-asynchronous-job-to-log"></span><h2>Use asynchronous job to log<a class="headerlink" href="#use-asynchronous-job-to-log" title="Permalink to this headline">¶</a></h2>
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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>By doing this, the command will run at background asynchronously, and output the execution result into <code class="docutils literal notranslate"><span class="pre">~/logs/arthas-cache/{PID}/{JobId}</span></code>:</p>
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<ul class="simple">
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<li>The background job will continue to run even if the current session is disconnected. The default job timeout value is 1 day, use global ‘<a class="reference internal" href="options.html"><span class="doc">options</span></a>’ command to alternate it.</li>
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<li>The execution result will be output into the file asynchronously. Pls. note the behavior of this command is not controlled by <code class="docutils literal notranslate"><span class="pre">save-result</span></code> option from global <a class="reference internal" href="options.html"><span class="doc">options</span></a>. No matter <code class="docutils literal notranslate"><span class="pre">save-result</span></code> is set to <code class="docutils literal notranslate"><span class="pre">true</span></code> or not, this command will write into <code class="docutils literal notranslate"><span class="pre">~/logs/arthas-cache/{PID}/{JobId}</span></code> anyway, instead of into <code class="docutils literal notranslate"><span class="pre">~/logs/arthas-cache/result.log</span></code>.</li>
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