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< li > Log command outputs< / li >
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< h1 > Log command outputs< a class = "headerlink" href = "#log-command-outputs" title = "Permalink to this headline" > ¶< / a > < / h1 >
< blockquote >
< div > < p > Log command outputs for later analysis< / p >
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< li > < p > By default, this behavior is turned off. To enable it, execute the command below:< / p >
< div class = "highlight-bash notranslate" > < div class = "highlight hljs" > < pre class = "bash" > $ options save-result true
NAME BEFORE-VALUE AFTER-VALUE
----------------------------------------
save-result false true
Affect(row-cnt:1) cost in 3 ms.< / pre > < / div >
< / div >
< p > If the message above is output on the console, then this behavior is enabled successfully.< / p >
< / li >
< li > < p > Log file path< / p >
< 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 >
< / li >
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< h2 > Use asynchronous job to log< a class = "headerlink" href = "#use-asynchronous-job-to-log" title = "Permalink to this headline" > ¶< / a > < / h2 >
< div class = "highlight-bash notranslate" > < div class = "highlight hljs" > < pre class = "bash" > $ trace Test t > > &
job id : 2
cache location : /Users/zhuyong/logs/arthas-cache/28198/2< / pre > < / div >
< / div >
< 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 >
< ul class = "simple" >
< li > < p > 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 > ’ < / p > < / li >
< li > < p > 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 > .< / p > < / li >
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