57 lines
2.0 KiB
Python
Executable File
57 lines
2.0 KiB
Python
Executable File
#!/usr/bin/env python
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#requires log format as below
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#log_format cache '$remote_addr - $host [$time_local] "$request" $status '
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# '$body_bytes_sent "$http_referer" '
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# 'rt=$request_time ut="$upstream_response_time" '
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# 'cs=$upstream_cache_status';
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#License BSD
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#Created by Simon Whittaker simon+github@swbh.net
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#based on nginx_cache_hit_rate
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from __future__ import with_statement
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import re
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import sys
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fname = "/var/log/nginx/access.log" # File to check
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if len(sys.argv) > 1:
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if sys.argv[1]=="config":
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print "graph_args --base 1000 -l 0"
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print "graph_title NGINX Upstream times"
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print "graph_category webserver"
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print "graph_vlabel milliseconds"
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print "upstream.label upstream"
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print "upstream.warning 5000"
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print "upstream.critical 10000"
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print "graph_info Shows the average time of connections to upstream servers for the primary site"
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sys.exit(0)
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with open(fname, "r") as f:
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f.seek (0, 2) # Seek @ EOF
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fsize = f.tell() # Get Size
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f.seek (max (fsize-20480, 0), 0) # Set pos @ last n chars
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lines = f.readlines() # Read to end
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lines = lines[-1000:] #last 1000 lines you might want to change this
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re1='.*?' # Non-greedy match on filler
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re2='(ut)' # Word 1
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re3='(=)' # Any Single Character 1
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re4='([+-]?\\d*\\.\\d+)(?![-+0-9\\.])' # Float 1
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rg = re.compile(re1+re2+re3+re4,re.IGNORECASE|re.DOTALL)
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totaltimeforrequests=0
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numberofrequests=0
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for line in lines:
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m = rg.search(line)
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if m:
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word1=m.group(1)
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c1=m.group(2)
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float1=m.group(3)
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numberofrequests=numberofrequests+1
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totaltimeforrequests=totaltimeforrequests+float(float1)
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upstream=(totaltimeforrequests/numberofrequests)*1000
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upstream=int(upstream)
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print "upstream.value "+str(upstream)
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