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Added APC Status
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| apc_status | ||
| =============== | ||
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| python module for ganglia 3.1. | ||
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| "apc_status" sends metrics on Another PHP Cache process status refering to | ||
| apc-json.php. | ||
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| To use this you will need to copy apc-json.php to your webdir. | ||
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| ## AUTHOR | ||
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| Jacob V. Rasmussen <jacobvrasmussen@gmail.com> |
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| modules { | ||
| module { | ||
| name = "apc_status" | ||
| language = "python" | ||
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| # URL of the resident apc-json.php script, which will translate the APC figures to JSON | ||
| param url { | ||
| value = "http://localhost/apc-json.php" | ||
| } | ||
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| # Which metric group should these metrics be put into | ||
| param metric_group { | ||
| value = "apc_cache" | ||
| } | ||
| } | ||
| } | ||
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| collection_group { | ||
| collect_every = 30 | ||
| time_threshold = 90 | ||
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| metric { | ||
| name = "apc_mem_size" | ||
| title = "Total Memory" | ||
| value_threshold = 0 | ||
| } | ||
| metric { | ||
| name = "apc_mem_avail" | ||
| title = "Free Memory" | ||
| value_threshold = 0 | ||
| } | ||
| metric { | ||
| name = "apc_mem_used" | ||
| title = "Used Memory" | ||
| value_threshold = 0 | ||
| } | ||
| metric { | ||
| name = "apc_num_slots" | ||
| title = "Number of Slots" | ||
| value_threshold = 0 | ||
| } | ||
| metric { | ||
| name = "apc_num_hits" | ||
| title = "Number of Cache Hits" | ||
| value_threshold = 0 | ||
| } | ||
| metric { | ||
| name = "apc_num_misses" | ||
| title = "Number of Cache Misses" | ||
| value_threshold = 0 | ||
| } | ||
| metric { | ||
| name = "apc_num_inserts" | ||
| title = "Number of Cache Inserts" | ||
| value_threshold = 0 | ||
| } | ||
| metric { | ||
| name = "apc_expunges" | ||
| title = "Number of Cache Deletes" | ||
| value_threshold = 0 | ||
| } | ||
| metric { | ||
| name = "apc_num_entries" | ||
| title = "Cached Files" | ||
| value_threshold = 0 | ||
| } | ||
| metric { | ||
| name = "apc_num_seg" | ||
| title = "Segments" | ||
| value_threshold = 0 | ||
| } | ||
| metric { | ||
| name = "apc_uptime" | ||
| title = "Uptime" | ||
| value_threshold = 0 | ||
| } | ||
| metric { | ||
| name = "apc_request_rate" | ||
| title = "Request Rate (hits, misses)" | ||
| value_threshold = 0.0 | ||
| } | ||
| metric { | ||
| name = "apc_hit_rate" | ||
| title = "Hit Rate" | ||
| value_threshold = 0.0 | ||
| } | ||
| metric { | ||
| name = "apc_miss_rate" | ||
| title = "Miss Rate" | ||
| value_threshold = 0.0 | ||
| } | ||
| metric { | ||
| name = "apc_insert_rate" | ||
| title = "Insert Rate" | ||
| value_threshold = 0.0 | ||
| } | ||
| } |
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| <?php | ||
| # | ||
| # APC JSON builder | ||
| # Used for Ganglia APC Status module | ||
| # | ||
| # Author: Jacob V. Rasmussen (jacobvrasmussen@gmail.com) | ||
| # Site: http://blackthorne.dk | ||
| # | ||
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| header("Content-type: text/plain"); | ||
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| function cmp_cache_list($a, $b) | ||
| { | ||
| return ($b['num_hits'] - $a['num_hits']); | ||
| } | ||
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| if ($_SERVER["REMOTE_ADDR"] == "127.0.0.1" || TRUE) | ||
| { | ||
| $cache = apc_cache_info(); | ||
| $mem = apc_sma_info(); | ||
| $cache['uptime'] = time() - $cache['start_time']; | ||
| $cache['request_rate'] = ($cache['num_hits'] + $cache['num_misses']) / $cache['uptime']; | ||
| $cache['hit_rate'] = $cache['num_hits'] / $cache['uptime']; | ||
| $cache['miss_rate'] = $cache['num_misses'] / $cache['uptime']; | ||
| $cache['insert_rate'] = $cache['num_inserts'] / $cache['uptime']; | ||
| $cache['num_seg'] = $mem['num_seg']; | ||
| $cache['mem_size'] = $mem['num_seg'] * $mem['seg_size']; | ||
| $cache['mem_avail'] = $mem['avail_mem']; | ||
| $cache['mem_used'] = $cache['mem_size'] - $cache['mem_avail']; | ||
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| $cache_list = $cache['cache_list']; | ||
| usort($cache_list, 'cmp_cache_list'); | ||
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| unset($cache['cache_list']); //lots of info that we don't need for a brief status | ||
| unset($cache['deleted_list']); // ditto | ||
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| if (@$_REQUEST['debug'] == '1') | ||
| { | ||
| print_r($cache); | ||
| print_r($mem); | ||
| print_r($cache_list); | ||
| } | ||
| echo json_encode($cache); | ||
| } |
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| # | ||
| # | ||
| # Module: apc_status | ||
| # Graphs the status of APC: Another PHP Cache | ||
| # | ||
| # Useage: To use this, you need to copy the apc-json.php file to your document root of the local webserver. | ||
| # The path to the apc-json.php should be set in conf.d/apc_status.pyconf | ||
| # | ||
| # Author: Jacob V. Rasmussen (jacobvrasmussen@gmail.com) | ||
| # Site: http://blackthorne.dk | ||
| # | ||
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| import urllib2 | ||
| import json | ||
| import traceback | ||
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| NAME_PREFIX = "apc_" | ||
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| APC_STATUS_URL = "" | ||
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| descriptors = list() | ||
| Desc_Skel = {} | ||
| metric_list = { | ||
| NAME_PREFIX + 'num_slots' : { 'type': 'uint', 'format' : '%d', 'unit': 'Slots', 'desc': 'Number of slots' }, | ||
| NAME_PREFIX + 'num_hits' : { 'type': 'uint', 'format' : '%d', 'unit': 'Hits', 'desc': 'Number of cache hits' }, | ||
| NAME_PREFIX + 'num_misses' : { 'type': 'uint', 'format' : '%d', 'unit': 'Misses', 'desc': 'Number of cache misses' }, | ||
| NAME_PREFIX + 'num_inserts' : { 'type': 'uint', 'format' : '%d', 'unit': 'Inserts', 'desc': 'Number of cache inserts' }, | ||
| NAME_PREFIX + 'expunges' : { 'type': 'uint', 'format' : '%d', 'unit': 'Deletes', 'desc': 'Number of cache deletes' }, | ||
| NAME_PREFIX + 'mem_size' : { 'type': 'uint', 'format' : '%d', 'unit': 'Bytes', 'desc': 'Memory size' }, | ||
| NAME_PREFIX + 'num_entries' : { 'type': 'uint', 'format' : '%d', 'unit': 'Entries', 'desc': 'Cached Files' }, | ||
| NAME_PREFIX + 'uptime' : { 'type': 'uint', 'format' : '%d', 'unit': 'seconds', 'desc': 'Uptime' }, | ||
| NAME_PREFIX + 'request_rate' : { 'type': 'float', 'format' : '%f', 'unit': 'requests/sec', 'desc': 'Request Rate (hits, misses)' }, | ||
| NAME_PREFIX + 'hit_rate' : { 'type': 'float', 'format' : '%f', 'unit': 'requests/sec', 'desc': 'Hit Rate' }, | ||
| NAME_PREFIX + 'miss_rate' : { 'type': 'float', 'format' : '%f', 'unit': 'requests/sec', 'desc': 'Miss Rate' }, | ||
| NAME_PREFIX + 'insert_rate' : { 'type': 'float', 'format' : '%f', 'unit': 'requests/sec', 'desc': 'Insert Rate' }, | ||
| NAME_PREFIX + 'num_seg' : { 'type': 'uint', 'format' : '%d', 'unit': 'fragments', 'desc': 'Segments' }, | ||
| NAME_PREFIX + 'mem_avail' : { 'type': 'uint', 'format' : '%d', 'unit': 'bytes', 'desc': 'Free Memory' }, | ||
| NAME_PREFIX + 'mem_used' : { 'type': 'uint', 'format' : '%d', 'unit': 'bytes', 'desc': 'Used Memory' }, | ||
| } | ||
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| def get_value(name): | ||
| try: | ||
| req = urllib2.Request(APC_STATUS_URL, None, {'user-agent':'ganglia-apc-python'}) | ||
| opener = urllib2.build_opener() | ||
| f = opener.open(req) | ||
| apc_stats = json.load(f) | ||
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| except urllib2.URLError: | ||
| traceback.print_exc() | ||
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| return apc_stats[name[len(NAME_PREFIX):]] | ||
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| def create_desc(prop): | ||
| d = Desc_Skel.copy() | ||
| for k,v in prop.iteritems(): | ||
| d[k] = v | ||
| return d | ||
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| def metric_init(params): | ||
| global descriptors, Desc_Skel, APC_STATUS_URL | ||
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| if "metric_group" not in params: | ||
| params["metric_group"] = "apc_cache" | ||
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| Desc_Skel = { | ||
| 'name' : 'XXX', | ||
| 'call_back' : get_value, | ||
| 'time_max' : 60, | ||
| 'value_type' : 'uint', | ||
| 'units' : 'proc', | ||
| 'slope' : 'both', | ||
| 'format' : '%d', | ||
| 'description' : 'XXX', | ||
| 'groups' : params["metric_group"], | ||
| } | ||
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| if "refresh_rate" not in params: | ||
| params["refresh_rate"] = 15 | ||
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| if "url" not in params: | ||
| params["url"] = "http://localhost/apc-json.php" | ||
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| APC_STATUS_URL = params["url"] | ||
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| if "spoof_host" in params: | ||
| Desc_Skel["spoof_host"] = params["spoof_host"] | ||
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| for k,v in metric_list.iteritems(): | ||
| descriptors.append(create_desc({ | ||
| "name" : k, | ||
| "call_back" : get_value, | ||
| "value_type" : v["type"], | ||
| "units" : v["unit"], | ||
| "format" : v["format"], | ||
| "description" : v["desc"], | ||
| })) | ||
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| return descriptors | ||
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| def metric_cleanup(): | ||
| pass | ||
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| if __name__ == '__main__': | ||
| metric_init({}) | ||
| for d in descriptors: | ||
| v = d['call_back'](d['name']) | ||
| print 'value for %s is %s' % (d['name'], v) | ||
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