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-rw-r--r--collectors/python.d.plugin/tomcat/tomcat.chart.py199
1 files changed, 199 insertions, 0 deletions
diff --git a/collectors/python.d.plugin/tomcat/tomcat.chart.py b/collectors/python.d.plugin/tomcat/tomcat.chart.py
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+++ b/collectors/python.d.plugin/tomcat/tomcat.chart.py
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+# -*- coding: utf-8 -*-
+# Description: tomcat netdata python.d module
+# Author: Pawel Krupa (paulfantom)
+# Author: Wei He (Wing924)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+import re
+import xml.etree.ElementTree as ET
+
+from bases.FrameworkServices.UrlService import UrlService
+
+MiB = 1 << 20
+
+# Regex fix for Tomcat single quote XML attributes
+# affecting Tomcat < 8.5.24 & 9.0.2 running with Java > 9
+# cf. https://bz.apache.org/bugzilla/show_bug.cgi?id=61603
+single_quote_regex = re.compile(r"='([^']+)'([^']+)''")
+
+ORDER = [
+ 'accesses',
+ 'bandwidth',
+ 'processing_time',
+ 'threads',
+ 'jvm',
+ 'jvm_eden',
+ 'jvm_survivor',
+ 'jvm_tenured',
+]
+
+CHARTS = {
+ 'accesses': {
+ 'options': [None, 'Requests', 'requests/s', 'statistics', 'tomcat.accesses', 'area'],
+ 'lines': [
+ ['requestCount', 'accesses', 'incremental'],
+ ['errorCount', 'errors', 'incremental'],
+ ]
+ },
+ 'bandwidth': {
+ 'options': [None, 'Bandwidth', 'KiB/s', 'statistics', 'tomcat.bandwidth', 'area'],
+ 'lines': [
+ ['bytesSent', 'sent', 'incremental', 1, 1024],
+ ['bytesReceived', 'received', 'incremental', 1, 1024],
+ ]
+ },
+ 'processing_time': {
+ 'options': [None, 'processing time', 'seconds', 'statistics', 'tomcat.processing_time', 'area'],
+ 'lines': [
+ ['processingTime', 'processing time', 'incremental', 1, 1000]
+ ]
+ },
+ 'threads': {
+ 'options': [None, 'Threads', 'current threads', 'statistics', 'tomcat.threads', 'area'],
+ 'lines': [
+ ['currentThreadCount', 'current', 'absolute'],
+ ['currentThreadsBusy', 'busy', 'absolute']
+ ]
+ },
+ 'jvm': {
+ 'options': [None, 'JVM Memory Pool Usage', 'MiB', 'memory', 'tomcat.jvm', 'stacked'],
+ 'lines': [
+ ['free', 'free', 'absolute', 1, MiB],
+ ['eden_used', 'eden', 'absolute', 1, MiB],
+ ['survivor_used', 'survivor', 'absolute', 1, MiB],
+ ['tenured_used', 'tenured', 'absolute', 1, MiB],
+ ['code_cache_used', 'code cache', 'absolute', 1, MiB],
+ ['compressed_used', 'compressed', 'absolute', 1, MiB],
+ ['metaspace_used', 'metaspace', 'absolute', 1, MiB],
+ ]
+ },
+ 'jvm_eden': {
+ 'options': [None, 'Eden Memory Usage', 'MiB', 'memory', 'tomcat.jvm_eden', 'area'],
+ 'lines': [
+ ['eden_used', 'used', 'absolute', 1, MiB],
+ ['eden_committed', 'committed', 'absolute', 1, MiB],
+ ['eden_max', 'max', 'absolute', 1, MiB]
+ ]
+ },
+ 'jvm_survivor': {
+ 'options': [None, 'Survivor Memory Usage', 'MiB', 'memory', 'tomcat.jvm_survivor', 'area'],
+ 'lines': [
+ ['survivor_used', 'used', 'absolute', 1, MiB],
+ ['survivor_committed', 'committed', 'absolute', 1, MiB],
+ ['survivor_max', 'max', 'absolute', 1, MiB],
+ ]
+ },
+ 'jvm_tenured': {
+ 'options': [None, 'Tenured Memory Usage', 'MiB', 'memory', 'tomcat.jvm_tenured', 'area'],
+ 'lines': [
+ ['tenured_used', 'used', 'absolute', 1, MiB],
+ ['tenured_committed', 'committed', 'absolute', 1, MiB],
+ ['tenured_max', 'max', 'absolute', 1, MiB]
+ ]
+ }
+}
+
+
+class Service(UrlService):
+ def __init__(self, configuration=None, name=None):
+ UrlService.__init__(self, configuration=configuration, name=name)
+ self.order = ORDER
+ self.definitions = CHARTS
+ self.url = self.configuration.get('url', 'http://127.0.0.1:8080/manager/status?XML=true')
+ self.connector_name = self.configuration.get('connector_name', None)
+ self.parse = self.xml_parse
+
+ def xml_parse(self, data):
+ try:
+ return ET.fromstring(data)
+ except ET.ParseError:
+ self.debug('%s is not a valid XML page. Please add "?XML=true" to tomcat status page.' % self.url)
+ return None
+
+ def xml_single_quote_fix_parse(self, data):
+ data = single_quote_regex.sub(r"='\g<1>\g<2>'", data)
+ return self.xml_parse(data)
+
+ def check(self):
+ self._manager = self._build_manager()
+
+ raw_data = self._get_raw_data()
+ if not raw_data:
+ return False
+
+ if single_quote_regex.search(raw_data):
+ self.warning('Tomcat status page is returning invalid single quote XML, please consider upgrading '
+ 'your Tomcat installation. See https://bz.apache.org/bugzilla/show_bug.cgi?id=61603')
+ self.parse = self.xml_single_quote_fix_parse
+
+ return self.parse(raw_data) is not None
+
+ def _get_data(self):
+ """
+ Format data received from http request
+ :return: dict
+ """
+ data = None
+ raw_data = self._get_raw_data()
+ if raw_data:
+ xml = self.parse(raw_data)
+ if xml is None:
+ return None
+
+ data = {}
+
+ jvm = xml.find('jvm')
+
+ connector = None
+ if self.connector_name:
+ for conn in xml.findall('connector'):
+ if self.connector_name in conn.get('name'):
+ connector = conn
+ break
+ else:
+ connector = xml.find('connector')
+
+ memory = jvm.find('memory')
+ data['free'] = memory.get('free')
+ data['total'] = memory.get('total')
+
+ for pool in jvm.findall('memorypool'):
+ name = pool.get('name')
+ if 'Eden Space' in name:
+ data['eden_used'] = pool.get('usageUsed')
+ data['eden_committed'] = pool.get('usageCommitted')
+ data['eden_max'] = pool.get('usageMax')
+ elif 'Survivor Space' in name:
+ data['survivor_used'] = pool.get('usageUsed')
+ data['survivor_committed'] = pool.get('usageCommitted')
+ data['survivor_max'] = pool.get('usageMax')
+ elif 'Tenured Gen' in name or 'Old Gen' in name:
+ data['tenured_used'] = pool.get('usageUsed')
+ data['tenured_committed'] = pool.get('usageCommitted')
+ data['tenured_max'] = pool.get('usageMax')
+ elif name == 'Code Cache':
+ data['code_cache_used'] = pool.get('usageUsed')
+ data['code_cache_committed'] = pool.get('usageCommitted')
+ data['code_cache_max'] = pool.get('usageMax')
+ elif name == 'Compressed':
+ data['compressed_used'] = pool.get('usageUsed')
+ data['compressed_committed'] = pool.get('usageCommitted')
+ data['compressed_max'] = pool.get('usageMax')
+ elif name == 'Metaspace':
+ data['metaspace_used'] = pool.get('usageUsed')
+ data['metaspace_committed'] = pool.get('usageCommitted')
+ data['metaspace_max'] = pool.get('usageMax')
+
+ if connector is not None:
+ thread_info = connector.find('threadInfo')
+ data['currentThreadsBusy'] = thread_info.get('currentThreadsBusy')
+ data['currentThreadCount'] = thread_info.get('currentThreadCount')
+
+ request_info = connector.find('requestInfo')
+ data['processingTime'] = request_info.get('processingTime')
+ data['requestCount'] = request_info.get('requestCount')
+ data['errorCount'] = request_info.get('errorCount')
+ data['bytesReceived'] = request_info.get('bytesReceived')
+ data['bytesSent'] = request_info.get('bytesSent')
+
+ return data or None