diff options
Diffstat (limited to 'collectors/python.d.plugin/tomcat/tomcat.chart.py')
| -rw-r--r-- | collectors/python.d.plugin/tomcat/tomcat.chart.py | 199 |
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 new file mode 100644 index 0000000..90315f8 --- /dev/null +++ b/collectors/python.d.plugin/tomcat/tomcat.chart.py @@ -0,0 +1,199 @@ +# -*- 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 |