title: How to understand td-agent buffer file content
body: <p>our td-agent encounters &quot;fail to flush the buffer&quot; issue, the workaround is to delete buffer file(also we back up for troubleshooting).After deletion the issue was gone.</p>
  <p>I looked into the buffer file and hoped to find which particular log caused the issue. However I found it hard to understand, and also some output is not text.</p>
  <pre><code>xxxxxxxxg:~/buffer# hexdump -C buffer.q5e65a46f3e10a05be5ab55e76674e195.log
  00000000  93 a6 73 79 73 6c 6f 67  ce 62 fb 83 37 b3 66 6f  |..syslog.b..7.fo|
  00000010  6f 20 68 74 74 70 5f 6e  6f 72 6d 61 6c 69 7a 65  |o http_normalize|
  00000020  64                                                |d|
  
  </code></pre>
  <p>What does the &quot;.b..7&quot; mean btw &quot;syslog&quot; and &quot;.fo&quot;
  Could anyone help here? Many thanks!</p>