# List of Prometheus metrics
## Metrics exposed by the Web API
| Metric name | Type | Unit | Description |
| --------------------------------------------- | ------- | ------------ | --------------------------------------------------------------------- |
| SonarQube\_Database\_PoolMaxConnections | Untyped | Connections | Maximum number of connections to the Database pool. |
| SonarQube\_AsyncExecution\_LargestWorkerCount | Untyped | n/a | Maximum number of asynchronous workers. |
| SonarQube\_Database\_PoolMinIdleConnections | Untyped | Connections | Minimum number of idle connections to the Database pool. |
| SonarQube\_AsyncExecution\_QueueSize | Untyped | n/a | Queue size for asynchronous jobs. |
| SonarQube\_Database\_PoolTotalConnections | Untyped | Connections | Total number of connections to the Database pool. |
| SonarQube\_AsyncExecution\_WorkerCount | Untyped | Workers | Total number of asynchronous job workers. |
| SonarQube\_Database\_PoolMaxLifeTimeMillis | Untyped | Milliseconds | Maximum time a connection can stay in the alive in the Database pool. |
| SonarQube\_Database\_PoolActiveConnections | Untyped | Connections | Maximum number of active connections in the Database pool. |
| SonarQube\_Database\_PoolMaxWaitMillis | Untyped | Milliseconds | Maximum time a connection can keep waiting in the Database pool. |
| SonarQube\_Database\_PoolIdleConnections | Untyped |
| Maximum number of idle connections in the Database pool. |
## JMX metrics
### Main SonarQube Server process
The metrics coming from the main Java process are listed below.
| Metric name | Type | Unit | Description |
| ------------------------------------ | ------- | ------- | ------------------------------------------------------ |
| process\*\_cpu\_\*seconds\_total | Counter | Seconds | Total user and system CPU time spent in seconds. |
| process\*\_start\_\*time\_seconds | Gauge | Seconds | Start time of the process since Unix epoch in seconds. |
| process\*\_open\_\*fds | Gauge | n/a | Number of open file descriptors. |
| process\*\_max\_\*fds | Gauge | n/a | Maximum number of open file descriptors. |
| process\*\_virtual\_\*memory\_bytes | Gauge | Bytes | Virtual memory size in bytes. |
| process\*\_resident\_\*memory\_bytes | Gauge | Bytes | Resident memory size in bytes. |
### Tomcat
The metrics coming from Tomcat are listed below. All metrics are untyped.
Connector
| Metric name | Description |
| ------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Tomcat\*\_Connector\_\*portOffset | The offset that will be applied to the port to determine the actual port number used. |
| Tomcat\*\_Connector\_\*maxThreads | The maximum number of request processing threads to be created for the internal Executor. -1 indicates an external Executor is being used. |
| Tomcat\*\_Connector\_\*tcpNoDelay | Should we use TCP no delay? |
| Tomcat\*\_Connector\_\*maxParameterCount | The maximum number of parameters (GET plus POST) that will be automatically parsed by the container. 10000 by default. The default Tomcat server.xml configures a lower default of 1000. A value of less than 0 means no limit. |
| Tomcat\*\_Connector\_\*maxHeaderCount | The maximum number of headers that are allowed by the container. 100 by default. A value of less than 0 means no limit. |
| Tomcat\*\_Connector\_\*maxKeepAliveRequests | Maximum number of Keep-Alive requests to honor per connection. |
| Tomcat\*\_Connector\_\*allowTrace | Allow disabling TRACE method. |
| Tomcat\*\_Connector\_\*enableLookups | The ‘enable DNS lookups’ flag for this Connector. |
| Tomcat\*\_Connector\_\*localPort | The port number on which this connector is listening to requests. If the special value for port of zero is used then this method will report the actual port bound. |
| Tomcat\*\_Connector\_\*threadPriority | The thread priority for processors using the internal Executor. -1 indicates an external Executor is being used. |
| Tomcat\*\_Connector\_\*processorCache | The processor cache size. |
| Tomcat\*\_Connector\_\*xpoweredBy | Is generation of X-Powered-By response header enabled/disabled? |
| Tomcat\*\_Connector\_\*useIPVHosts | Should IP-based virtual hosting be used? |
| Tomcat\*\_Connector\_\*port | The port number (excluding any offset) on which this connector is configured to listen for requests. The special value of 0 means select a random free port when the socket is bound. |
| Tomcat\*\_Connector\_\*redirectPort | The redirect port (excluding any offset) for non-SSL to SSL redirects. |
| Tomcat\*\_Connector\_\*proxyPort | The Server port to which we should pretend requests to this Connector. |
| Tomcat\*\_Connector\_\*acceptCount | The accept count for this Connector. |
| Tomcat\*\_Connector\_\*maxSwallowSize | The maximum number of request body bytes to be swallowed by Tomcat for an aborted upload. |
| Tomcat\*\_Connector\_\*portWithOffset | The actual port number (including any offset) on which this connector is configured to listen for requests. |
| Tomcat\*\_Connector\_\*maxPostSize | Maximum size in bytes of a POST which will be handled by the servlet API provided features. |
| Tomcat\*\_Connector\_\*connectionTimeout | Timeout value on the incoming connection. |
| Tomcat\*\_Connector\_\*connectionLinger | Linger value on the incoming connection. |
Engine
| Metric name | Description |
| -------------------------------------------- | -------------------------------------------------------------------- |
| Tomcat\*\_Engine\_\*backgroundProcessorDelay | The processor delay for this component. |
| Tomcat\*\_Engine\_\*startChildren | Will children be started automatically when they are added? |
| Tomcat\*\_Engine\_\*startStopThreads | The number of threads to use when starting and stopping child Hosts. |
GlobalRequestProcessor
| Metric name | Description |
| -------------------------------------------------- | ------------------------------------------------------------ |
| Tomcat\*\_GlobalRequestProcessor\_\*bytesReceived | Amount of data received, in bytes. |
| Tomcat\*\_GlobalRequestProcessor\_\*bytesSent | Amount of data sent, in bytes. |
| Tomcat\*\_GlobalRequestProcessor\_\*errorCount | Number of errors for the GlobalRequestProcessor. |
| Tomcat\*\_GlobalRequestProcessor\_\*maxTime | Maximum time to process a request. |
| Tomcat\*\_GlobalRequestProcessor\_\*processingTime | Total time to process the requests. |
| Tomcat\*\_GlobalRequestProcessor\_\*requestCount | Number of requests processed for the GlobalRequestProcessor. |
Host
| Metric name | Description |
| ------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Tomcat\*\_Host\_\*autoDeploy | The auto deploy flag for this Host. |
| Tomcat\*\_Host\_\*backgroundProcessorDelay | The processor delay for this component. |
| Tomcat\*\_Host\_\*copyXML | Should XML files be copied to $CATALINA\_BASE/conf/{engine}/{host} by default when a web application is deployed? |
| Tomcat\*\_Host\_\*createDirs | Should we create directories upon startup for appBase and xmlBase? |
| Tomcat\*\_Host\_\*deployOnStartup | The deploy on startup flag for this Host. |
| Tomcat\*\_Host\_\*deployXML | Deploy Context XML config files property. |
| Tomcat\*\_Host\_\*startChildren | Will children be started automatically when they are added? |
| Tomcat\*\_Host\_\*startStopThreads | The number of threads to use when starting, stopping, and deploying child Contexts. |
| Tomcat\*\_Host\_\*undeployOldVersions | Determines if old versions of applications deployed using parallel deployment are automatically undeployed when no longer used. Requires autoDeploy to be enabled. |
| Tomcat\*\_Host\_\*unpackWARs | Unpack WARs property. |
Manager
| Metric name | Description |
| -------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
| Tomcat\*\_Manager\_\*activeSessions | Number of active sessions at this moment. |
| Tomcat\*\_Manager\_\*duplicates | Number of duplicated session ids generated. |
| Tomcat\*\_Manager\_\*expiredSessions | Number of sessions that expired (doesn’t include explicit invalidations). |
| Tomcat\*\_Manager\_\*maxActive | Maximum number of active sessions so far. |
| Tomcat\*\_Manager\_\*maxActiveSessions | The maximum number of active Sessions allowed, or -1 for no limit. |
| Tomcat\*\_Manager\_\*persistAuthentication | Indicates whether sessions shall persist authentication information when being persisted (e.g. across application restarts). |
| Tomcat\*\_Manager\_\*processExpiresFrequency | The frequency of the manager checks (expiration and passivation). |
| Tomcat\*\_Manager\_\*processingTime | Time spent doing housekeeping and expiration. |
| Tomcat\*\_Manager\_\*rejectedSessions | Number of sessions we rejected due to maxActive being reached. |
| Tomcat\*\_Manager\_\*sessionAverageAliveTime | Average time an expired session had been alive. |
| Tomcat\*\_Manager\_\*sessionCounter | Total number of sessions created by this manager. |
| Tomcat\*\_Manager\_\*sessionCreateRate | Session creation rate in sessions per minute. |
| Tomcat\*\_Manager\_\*sessionExpireRate | Session expiration rate in sessions per minute. |
| Tomcat\*\_Manager\_\*sessionMaxAliveTime | Longest time an expired session had been alive. |
| Tomcat\*\_Manager\_\*warnOnSessionAttributeFilterFailure | Should a WARN level log message be generated if a session attribute fails to match sessionAttributeNameFilter or sessionAttributeClassNameFilter? |
ProtocolHandler
| Metric name | Description |
| ---------------------------------------------------------- | ----------------------------------------------------- |
| Tomcat\*\_ProtocolHandler\_\*acceptCount | Introspected attribute acceptCount. |
| Tomcat\*\_ProtocolHandler\_\*acceptorThreadCount | Introspected attribute acceptorThreadCount. |
| Tomcat\*\_ProtocolHandler\_\*acceptorThreadPriority | Introspected attribute acceptorThreadPriority. |
| Tomcat\*\_ProtocolHandler\_\*allowHostHeaderMismatch | Introspected attribute allowHostHeaderMismatch. |
| Tomcat\*\_ProtocolHandler\_\*aprRequired | Introspected attribute aprRequired. |
| Tomcat\*\_ProtocolHandler\_\*compressionMinSize | Introspected attribute compressionMinSize. |
| Tomcat\*\_ProtocolHandler\_\*connectionCount | Introspected attribute connectionCount. |
| Tomcat\*\_ProtocolHandler\_\*connectionLinger | Introspected attribute connectionLinger. |
| Tomcat\*\_ProtocolHandler\_\*connectionTimeout | Introspected attribute connectionTimeout. |
| Tomcat\*\_ProtocolHandler\_\*connectionUploadTimeout | Introspected attribute connectionUploadTimeout. |
| Tomcat\*\_ProtocolHandler\_\*desiredBufferSize | Introspected attribute desiredBufferSize. |
| Tomcat\*\_ProtocolHandler\_\*disableUploadTimeout | Introspected attribute disableUploadTimeout. |
| Tomcat\*\_ProtocolHandler\_\*keepAliveTimeout | Introspected attribute keepAliveTimeout. |
| Tomcat\*\_ProtocolHandler\_\*localPort | Introspected attribute localPort. |
| Tomcat\*\_ProtocolHandler\_\*maxConnections | Introspected attribute maxConnections. |
| Tomcat\*\_ProtocolHandler\_\*maxExtensionSize | Introspected attribute maxExtensionSize. |
| Tomcat\*\_ProtocolHandler\_\*maxHeaderCount | Introspected attribute maxHeaderCount. |
| Tomcat\*\_ProtocolHandler\_\*maxHttpHeaderSize | Introspected attribute maxHttpHeaderSize. |
| Tomcat\*\_ProtocolHandler\_\*maxHttpRequestHeaderSize | Introspected attribute maxHttpRequestHeaderSize. |
| Tomcat\*\_ProtocolHandler\_\*maxHttpResponseHeaderSize | Introspected attribute maxHttpResponseHeaderSize. |
| Tomcat\*\_ProtocolHandler\_\*maxKeepAliveRequests | Introspected attribute maxKeepAliveRequests. |
| Tomcat\*\_ProtocolHandler\_\*maxSavePostSize | Introspected attribute maxSavePostSize. |
| Tomcat\*\_ProtocolHandler\_\*maxSwallowSize | Introspected attribute maxSwallowSize. |
| Tomcat\*\_ProtocolHandler\_\*maxThreads | Introspected attribute maxThreads. |
| Tomcat\*\_ProtocolHandler\_\*maxTrailerSize | Introspected attribute maxTrailerSize. |
| Tomcat\*\_ProtocolHandler\_\*minSpareThreads | Introspected attribute minSpareThreads. |
| Tomcat\*\_ProtocolHandler\_\*nameIndex | Introspected attribute nameIndex. |
| Tomcat\*\_ProtocolHandler\_\*noCompressionStrongETag | Introspected attribute noCompressionStrongETag. |
| Tomcat\*\_ProtocolHandler\_\*paused | Introspected attribute paused. |
| Tomcat\*\_ProtocolHandler\_\*pollerThreadCount | Introspected attribute pollerThreadCount. |
| Tomcat\*\_ProtocolHandler\_\*pollerThreadPriority | Introspected attribute pollerThreadPriority. |
| Tomcat\*\_ProtocolHandler\_\*port | Introspected attribute port. |
| Tomcat\*\_ProtocolHandler\_\*portOffset | Introspected attribute portOffset. |
| Tomcat\*\_ProtocolHandler\_\*portWithOffset | Introspected attribute portWithOffset. |
| Tomcat\*\_ProtocolHandler\_\*processorCache | Introspected attribute processorCache. |
| Tomcat\*\_ProtocolHandler\_\*rejectIllegalHeader | Introspected attribute rejectIllegalHeader. |
| Tomcat\*\_ProtocolHandler\_\*rejectIllegalHeaderName | Introspected attribute rejectIllegalHeaderName. |
| Tomcat\*\_ProtocolHandler\_\*secure | Introspected attribute secure. |
| Tomcat\*\_ProtocolHandler\_\*selectorTimeout | Introspected attribute selectorTimeout. |
| Tomcat\*\_ProtocolHandler\_\*sendfileSupported | Introspected attribute sendfileSupported. |
| Tomcat\*\_ProtocolHandler\_\*serverRemoveAppProvidedValues | Introspected attribute serverRemoveAppProvidedValues. |
| Tomcat\*\_ProtocolHandler\_\*sessionCacheSize | Introspected attribute sessionCacheSize. |
| Tomcat\*\_ProtocolHandler\_\*sessionTimeout | Introspected attribute sessionTimeout. |
| Tomcat\*\_ProtocolHandler\_\*sniParseLimit | Introspected attribute sniParseLimit. |
| Tomcat\*\_ProtocolHandler\_\*sSLDisableCompression | Introspected attribute sSLDisableCompression. |
| Tomcat\*\_ProtocolHandler\_\*sSLDisableSessionTickets | Introspected attribute sSLDisableSessionTickets. |
| Tomcat\*\_ProtocolHandler\_\*sSLEnabled | Introspected attribute sSLEnabled. |
| Tomcat\*\_ProtocolHandler\_\*sSLHonorCipherOrder | Introspected attribute sSLHonorCipherOrder. |
| Tomcat\*\_ProtocolHandler\_\*sSLVerifyDepth | Introspected attribute sSLVerifyDepth. |
| Tomcat\*\_ProtocolHandler\_\*tcpNoDelay | Introspected attribute tcpNoDelay. |
| Tomcat\*\_ProtocolHandler\_\*threadPriority | Introspected attribute threadPriority. |
| Tomcat\*\_ProtocolHandler\_\*trustMaxCertLength | Introspected attribute trustMaxCertLength. |
| Tomcat\*\_ProtocolHandler\_\*useKeepAliveResponseHeader | Introspected attribute useKeepAliveResponseHeader. |
| Tomcat\*\_ProtocolHandler\_\*useSendfile | Introspected attribute useSendfile. |
| Tomcat\*\_ProtocolHandler\_\*useServerCipherSuitesOrder | Introspected attribute useServerCipherSuitesOrder. |
| Tomcat\*\_ProtocolHandler\_\*waitingProcessorCount | Introspected attribute waitingProcessorCount. |
Realm
| Metric name | Description |
| --------------------------------------------------- | -------------------------------------------------------- |
| Tomcat\*\_Realm\_\*available | Introspected attribute available. |
| Tomcat\*\_Realm\_\*stripRealmForGss | Introspected attribute stripRealmForGss. |
| Tomcat\*\_Realm\_\*throwOnFailure | Introspected attribute throwOnFailure. |
| Tomcat\*\_Realm\_\*transportGuaranteeRedirectStatus | Introspected attribute transportGuaranteeRedirectStatus. |
| Tomcat\*\_Realm\_\*validate | Introspected attribute validate. |
RequestProcessor
| Metric name | Description |
| ------------------------------------------------------- | ------------------------------------------------- |
| Tomcat\*\_RequestProcessor\_\*bytesReceived | Introspected attribute bytesReceived. |
| Tomcat\*\_RequestProcessor\_\*bytesSent | Introspected attribute bytesSent. |
| Tomcat\*\_RequestProcessor\_\*contentLength | Introspected attribute contentLength. |
| Tomcat\*\_RequestProcessor\_\*errorCount | Introspected attribute errorCount. |
| Tomcat\*\_RequestProcessor\_\*lastRequestProcessingTime | Introspected attribute lastRequestProcessingTime. |
| Tomcat\*\_RequestProcessor\_\*maxTime | Introspected attribute maxTime. |
| Tomcat\*\_RequestProcessor\_\*processingTime | Introspected attribute processingTime. |
| Tomcat\*\_RequestProcessor\_\*requestBytesReceived | Introspected attribute requestBytesReceived. |
| Tomcat\*\_RequestProcessor\_\*requestBytesSent | Introspected attribute requestBytesSent. |
| Tomcat\*\_RequestProcessor\_\*requestCount | Introspected attribute requestCount. |
| Tomcat\*\_RequestProcessor\_\*requestProcessingTime | Introspected attribute requestProcessingTime. |
| Tomcat\*\_RequestProcessor\_\*serverPort | Introspected attribute serverPort. |
| Tomcat\*\_RequestProcessor\_\*stage | Introspected attribute stage. |
Server
| Metric name | Description |
| ---------------------------------- | ------------------------------------------------------------------------------- |
| Tomcat\*\_Server\_\*port | TCP port (excluding any offset) for shutdown messages. |
| Tomcat\*\_Server\_\*portOffset | The offset applied to port and to the port attributes of any nested connectors. |
| Tomcat\*\_Server\_\*portWithOffset | Actual TCP port (including any offset) for shutdown messages. |
Servlet
| Metric name | Description |
| --------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Tomcat\*\_Servlet\_\*available | The date and time at which this servlet will become available (in milliseconds since the epoch), or zero if the servlet is available. If this value equals Long.MAX\_VALUE, the unavailability of this servlet is considered permanent. |
| Tomcat\*\_Servlet\_\*asyncSupported | Async support. |
| Tomcat\*\_Servlet\_\*backgroundProcessorDelay | The processor delay for this component. |
| Tomcat\*\_Servlet\_\*classLoadTime | Time taken to load the Servlet class. |
| Tomcat\*\_Servlet\_\*countAllocated | The count of allocations that are currently active (even if they are for the same instance, as will be true on a non-STM servlet). |
| Tomcat\*\_Servlet\_\*errorCount | Error count. |
| Tomcat\*\_Servlet\_\*loadOnStartup | The load-on-startup order value (negative value means load on first call) for this servlet. |
| Tomcat\*\_Servlet\_\*loadTime | Time taken to load and initialize the Servlet. |
| Tomcat\*\_Servlet\_\*maxInstances | Deprecated. Will be removed in Tomcat 10.1 onwards. Maximum number of STM instances. |
| Tomcat\*\_Servlet\_\*maxTime | Maximum processing time of a request. |
| Tomcat\*\_Servlet\_\*minTime | Minimum processing time of a request. |
| Tomcat\*\_Servlet\_\*processingTime | Total execution time of the servlet’s service method. |
| Tomcat\*\_Servlet\_\*requestCount | Number of requests processed by this wrapper. |
| Tomcat\*\_Servlet\_\*singleThreadModel | Deprecated. Will be removed in Tomcat 10.1 onwards. Does this servlet implement the SingleThreadModel interface? |
SSLHostConfig
| Metric name | Description |
| ----------------------------------------------------------------- | -------------------------------------------------------------- |
| Tomcat\*\_SSLHostConfig\_\*certificateVerificationDepth | Introspected attribute certificateVerificationDepth. |
| Tomcat\*\_SSLHostConfig\_\*certificateVerificationDepthConfigured | Introspected attribute certificateVerificationDepthConfigured. |
| Tomcat\*\_SSLHostConfig\_\*disableCompression | Introspected attribute disableCompression. |
| Tomcat\*\_SSLHostConfig\_\*disableSessionTickets | Introspected attribute disableSessionTickets. |
| Tomcat\*\_SSLHostConfig\_\*honorCipherOrder | Introspected attribute honorCipherOrder. |
| Tomcat\*\_SSLHostConfig\_\*insecureRenegotiation | Introspected attribute insecureRenegotiation. |
| Tomcat\*\_SSLHostConfig\_\*openSslConfContext | Introspected attribute openSslConfContext. |
| Tomcat\*\_SSLHostConfig\_\*openSslContext | Introspected attribute openSslContext. |
| Tomcat\*\_SSLHostConfig\_\*revocationEnabled | Introspected attribute revocationEnabled. |
| Tomcat\*\_SSLHostConfig\_\*sessionCacheSize | Introspected attribute sessionCacheSize. |
| Tomcat\*\_SSLHostConfig\_\*sessionTimeout | Introspected attribute sessionTimeout. |
| Tomcat\*\_SSLHostConfig\_\*tls13RenegotiationAvailable | Introspected attribute tls13RenegotiationAvailable. |
SocketProperties
| Metric name | Description |
| ---------------------------------------------- | ---------------------------------------- |
| Tomcat\*\_SocketProperties\_\*appReadBufSize | Introspected attribute appReadBufSize. |
| Tomcat\*\_SocketProperties\_\*appWriteBufSize | Introspected attribute appWriteBufSize. |
| Tomcat\*\_SocketProperties\_\*bufferPool | Introspected attribute bufferPool. |
| Tomcat\*\_SocketProperties\_\*bufferPoolSize | Introspected attribute bufferPoolSize. |
| Tomcat\*\_SocketProperties\_\*directBuffer | Introspected attribute directBuffer. |
| Tomcat\*\_SocketProperties\_\*directBufferPool | Introspected attribute directBufferPool. |
| Tomcat\*\_SocketProperties\_\*directSslBuffer | Introspected attribute directSslBuffer. |
| Tomcat\*\_SocketProperties\_\*eventCache | Introspected attribute eventCache. |
| Tomcat\*\_SocketProperties\_\*processorCache | Introspected attribute processorCache. |
| Tomcat\*\_SocketProperties\_\*soLingerOn | Introspected attribute soLingerOn. |
| Tomcat\*\_SocketProperties\_\*soLingerTime | Introspected attribute soLingerTime. |
| Tomcat\*\_SocketProperties\_\*soReuseAddress | Introspected attribute soReuseAddress. |
| Tomcat\*\_SocketProperties\_\*soTimeout | Introspected attribute soTimeout. |
| Tomcat\*\_SocketProperties\_\*tcpNoDelay | Introspected attribute tcpNoDelay. |
| Tomcat\*\_SocketProperties\_\*timeoutInterval | Introspected attribute timeoutInterval. |
| Tomcat\*\_SocketProperties\_\*unlockTimeout | Introspected attribute unlockTimeout. |
StringCache
| Metric name | Description |
| --------------------------------------- | -------------------------------------- |
| Tomcat\*\_StringCache\_\*accessCount | Introspected attribute accessCount. |
| Tomcat\*\_StringCache\_\*byteEnabled | Introspected attribute byteEnabled. |
| Tomcat\*\_StringCache\_\*cacheSize | Introspected attribute cacheSize. |
| Tomcat\*\_StringCache\_\*charEnabled | Introspected attribute charEnabled. |
| Tomcat\*\_StringCache\_\*hitCount | Introspected attribute hitCount. |
| Tomcat\*\_StringCache\_\*trainThreshold | Introspected attribute trainThreshold. |
ThreadPool
| Metric name | Description |
| -------------------------------------------------------- | ---------------------------------------------------------------------------------------------- |
| Tomcat\*\_ThreadPool\_\*acceptCount | Tomcat ThreadPool acceptCount. |
| Tomcat\*\_ThreadPool\_\*acceptorThreadCount | Tomcat ThreadPool acceptorThreadCount. |
| Tomcat\*\_ThreadPool\_\*acceptorThreadPriority | Tomcat:name="http-nio-0.0.0.0-9000",type=ThreadPool,attribute=acceptorThreadPriority |
| Tomcat\*\_ThreadPool\_\*alpnSupported | Tomcat ThreadPool alpnSupported. |
| Tomcat\*\_ThreadPool\_\*bindOnInit | Tomcat ThreadPool bindOnInit. |
| Tomcat\*\_ThreadPool\_\*connectionCount | Tomcat ThreadPool connectionCount. |
| Tomcat\*\_ThreadPool\_\*connectionLinger | Tomcat:name="http-nio-0.0.0.0-9000",type=ThreadPool,attribute=connectionLinger |
| Tomcat\*\_ThreadPool\_\*connectionTimeout | Tomcat ThreadPool connection timeout. |
| Tomcat\*\_ThreadPool\_\*currentThreadCount | Tomcat ThreadPool currentThreadCount. |
| Tomcat\*\_ThreadPool\_\*currentThreadsBusy | The number of currently busy threads in the ThreadPool. |
| Tomcat\*\_ThreadPool\_\*daemon | Tomcat:name="http-nio-0.0.0.0-9000",type=ThreadPool,attribute=daemon |
| Tomcat\*\_ThreadPool\_\*deferAccept | Tomcat ThreadPool deferAccept. |
| Tomcat\*\_ThreadPool\_\*executorTerminationTimeoutMillis | Tomcat:name="http-nio-0.0.0.0-9000",type=ThreadPool,attribute=executorTerminationTimeoutMillis |
| Tomcat\*\_ThreadPool\_\*keepAliveCount | Tomcat ThreadPool keepAliveCount. |
| Tomcat\*\_ThreadPool\_\*keepAliveTimeout | Tomcat:name="http-nio-0.0.0.0-9000",type=ThreadPool,attribute=keepAliveTimeout |
| Tomcat\*\_ThreadPool\_\*localPort | Tomcat:name="http-nio-0.0.0.0-9000",type=ThreadPool,attribute=localPort |
| Tomcat\*\_ThreadPool\_\*maxConnections | Tomcat ThreadPool maxConnections. |
| Tomcat\*\_ThreadPool\_\*maxKeepAliveRequests | Tomcat ThreadPool maxKeepAliveRequests. |
| Tomcat\*\_ThreadPool\_\*maxThreads | Tomcat:name="http-nio-0.0.0.0-9000",type=ThreadPool,attribute=maxThreads |
| Tomcat\*\_ThreadPool\_\*minSpareThreads | Tomcat:name="http-nio-0.0.0.0-9000",type=ThreadPool,attribute=minSpareThreads |
| Tomcat\*\_ThreadPool\_\*paused | Tomcat ThreadPool paused. |
| Tomcat\*\_ThreadPool\_\*pollerThreadCount | Tomcat:name="http-nio-0.0.0.0-9000",type=ThreadPool,attribute=pollerThreadCount |
| Tomcat\*\_ThreadPool\_\*pollerThreadPriority | Tomcat ThreadPool pollerThreadPriority. |
| Tomcat\*\_ThreadPool\_\*port | Tomcat ThreadPool port. |
| Tomcat\*\_ThreadPool\_\*portOffset | Tomcat:name="http-nio-0.0.0.0-9000",type=ThreadPool,attribute=portOffset |
| Tomcat\*\_ThreadPool\_\*portWithOffset | Tomcat ThreadPool portWithOffset. |
| Tomcat\*\_ThreadPool\_\*running | Tomcat ThreadPool running. |
| Tomcat\*\_ThreadPool\_\*selectorTimeout | Introspected attribute selectorTimeout. |
| Tomcat\*\_ThreadPool\_\*sniParseLimit | Tomcat:name="http-nio-0.0.0.0-9000",type=ThreadPool,attribute=sniParseLimit |
| Tomcat\*\_ThreadPool\_\*sSLEnabled | Tomcat ThreadPool sSLEnabled. |
| Tomcat\*\_ThreadPool\_\*tcpNoDelay | Tomcat:name="http-nio-0.0.0.0-9000",type=ThreadPool,attribute=tcpNoDelay |
| Tomcat\*\_ThreadPool\_\*threadPriority | Tomcat:name="http-nio-0.0.0.0-9000",type=ThreadPool,attribute=threadPriority |
| Tomcat\*\_ThreadPool\_\*useInheritedChannel | Tomcat ThreadPool useInheritedChannel. |
| Tomcat\*\_ThreadPool\_\*useSendfile | Tomcat:name="http-nio-0.0.0.0-9000",type=ThreadPool,attribute=useSendfile |
UtilityExecutor
| Metric name | Description |
| ----------------------------------------------------------------------------- | ------------------------------------------------------------------------ |
| Tomcat\*\_UtilityExecutor\_\*activeCount | Introspected attribute activeCount. |
| Tomcat\*\_UtilityExecutor\_\*completedTaskCount | Introspected attribute completedTaskCount. |
| Tomcat\*\_UtilityExecutor\_\*continueExistingPeriodicTasksAfterShutdownPolicy | Introspected attribute continueExistingPeriodicTasksAfterShutdownPolicy. |
| Tomcat\*\_UtilityExecutor\_\*corePoolSize | Introspected attribute corePoolSize. |
| Tomcat\*\_UtilityExecutor\_\*executeExistingDelayedTasksAfterShutdownPolicy | Introspected attribute executeExistingDelayedTasksAfterShutdownPolicy. |
| Tomcat\*\_UtilityExecutor\_\*largestPoolSize | Introspected attribute largestPoolSize. |
| Tomcat\*\_UtilityExecutor\_\*maximumPoolSize | Introspected attribute maximumPoolSize. |
| Tomcat\*\_UtilityExecutor\_\*poolSize | Introspected attribute poolSize. |
| Tomcat\*\_UtilityExecutor\_\*removeOnCancelPolicy | Introspected attribute removeOnCancelPolicy. |
| Tomcat\*\_UtilityExecutor\_\*shutdown | Introspected attribute shutdown. |
| Tomcat\*\_UtilityExecutor\_\*taskCount | Introspected attribute taskCount. |
| Tomcat\*\_UtilityExecutor\_\*terminated | Introspected attribute terminated. |
| Tomcat\*\_UtilityExecutor\_\*terminating | Introspected attribute terminating. |
Valve
| Metric name | Description |
| -------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
| Tomcat\*\_Valve\_\*asyncSupported | Does this valve support async reporting? |
| Tomcat\*\_Valve\_\*birthTime | Introspected attribute birthTime. |
| Tomcat\*\_Valve\_\*cache | Should we cache authenticated Principals if the request is part of an HTTP session? |
| Tomcat\*\_Valve\_\*changeSessionIdOnAuthentication | Controls if the session ID is changed if a session exists at the point where users are authenticated. |
| Tomcat\*\_Valve\_\*disableProxyCaching | Controls the caching of pages that are protected by security constraints. |
| Tomcat\*\_Valve\_\*quiet | Introspected attribute quiet. |
| Tomcat\*\_Valve\_\*securePagesWithPragma | Controls the caching of pages that are protected by security constraints. |
| Tomcat\*\_Valve\_\*showReport | Enables/Disables full error reports. |
| Tomcat\*\_Valve\_\*showServerInfo | Enables/Disables server info on error pages. |
| Tomcat\*\_Valve\_\*started | Introspected attribute started. |
| Tomcat\*\_Valve\_\*throwOnFailure | Introspected attribute throwOnFailure. |
WebModule
| Metric name | Description |
| ------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Tomcat\*\_WebModule\_\*antiResourceLocking | Take care not to lock resources. |
| Tomcat\*\_WebModule\_\*clearReferencesRmiTargets | Should Tomcat look for memory leaks in RMI Targets and clear them if found as a workaround for application coding errors? |
| Tomcat\*\_WebModule\_\*clearReferencesStopTimerThreads | Should Tomcat attempt to terminate TimerThreads that have been started by the web application? Advisable to be used only in a development environment. |
| Tomcat\*\_WebModule\_\*clearReferencesStopThreads | Should Tomcat attempt to terminate threads that have been started by the web application? Advisable to be used only in a development environment. |
| Tomcat\*\_WebModule\_\*clearReferencesThreadLocals | Should Tomcat attempt to clear ThreadLocal variables that have been populated with classes loaded by the web application? |
| Tomcat\*\_WebModule\_\*configured | The correctly configured flag for this Context. |
| Tomcat\*\_WebModule\_\*cookies | Should we attempt to use cookies for session id communication? |
| Tomcat\*\_WebModule\_\*crossContext | Should we allow the ServletContext.getContext() method to access the context of other web applications in this server? |
| Tomcat\*\_WebModule\_\*delegate | Tomcat WebModule delegate. |
| Tomcat\*\_WebModule\_\*distributable | The distributable flag for this web application. |
| Tomcat\*\_WebModule\_\*errorCount | Cumulative error count of all servlets in this context. |
| Tomcat\*\_WebModule\_\*ignoreAnnotations | Ignore annotations flag. |
| Tomcat\*\_WebModule\_\*logEffectiveWebXml | Should the effective web.xml be logged when the context starts? |
| Tomcat\*\_WebModule\_\*mapperContextRootRedirectEnabled | Should the Mapper be used for context root redirects? |
| Tomcat\*\_WebModule\_\*mapperDirectoryRedirectEnabled | Should the Mapper be used for directory redirects? |
| Tomcat\*\_WebModule\_\*maxTime | Maximum execution time of all servlets in this context. |
| Tomcat\*\_WebModule\_\*minTime | Minimum execution time of all servlets in this context. |
| Tomcat\*\_WebModule\_\*override | The default context.xml override flag for this web application. |
| Tomcat\*\_WebModule\_\*parallelAnnotationScanning | The parallel annotation scanning flag. |
| Tomcat\*\_WebModule\_\*paused | The request processing pause flag (while reloading occurs). |
| Tomcat\*\_WebModule\_\*privileged | Access to Tomcat internals. |
| Tomcat\*\_WebModule\_\*processingTime | Cumulative execution times of all servlets in this context. |
| Tomcat\*\_WebModule\_\*reloadable | The reloadable flag for this web application. |
| Tomcat\*\_WebModule\_\*renewThreadsWhenStoppingContext | Should Tomcat renew the threads of the thread pool when the application is stopped to avoid memory leaks because of uncleaned ThreadLocal variables? |
| Tomcat\*\_WebModule\_\*requestCount | Cumulative request count of all servlets in this context. |
| Tomcat\*\_WebModule\_\*sessionTimeout | The session timeout (in minutes) for this web application. |
| Tomcat\*\_WebModule\_\*startTime | Time (in milliseconds since January 1, 1970, 00:00:00) when this context was started. |
| Tomcat\*\_WebModule\_\*startupTime | Time (in milliseconds) it took to start this context. |
| Tomcat\*\_WebModule\_\*swallowOutput | Flag to set to cause the system.out and system.err to be redirected to the logger when executing a servlet. |
| Tomcat\*\_WebModule\_\*tldScanTime | Time spent scanning jars for TLDs for this context. |
| Tomcat\*\_WebModule\_\*tldValidation | Should the parsing of \*.tld files be performed by a validating parser? |
| Tomcat\*\_WebModule\_\*unloadDelay | Amount of ms that the container will wait for servlets to unload. |
| Tomcat\*\_WebModule\_\*unpackWAR | Unpack WAR property. |
| Tomcat\*\_WebModule\_\*useBloomFilterForArchives | DEPRECATED: Use a bloom filter for archives lookups. |
| Tomcat\*\_WebModule\_\*useHttpOnly | Indicates that session cookies should use HttpOnly. |
| Tomcat\*\_WebModule\_\*useNaming | Create a JNDI naming context for this application? |
| Tomcat\*\_WebModule\_\*useRelativeRedirects | When generating location headers for 302 responses, should a relative URI be used? |
| Tomcat\*\_WebModule\_\*xmlNamespaceAware | Should the parsing of web.xml and web-fragment.xml files be performed by a namespace-aware parser? |
| Tomcat\*\_WebModule\_\*xmlValidation | Should the parsing of web.xml and web-fragment.xml files be performed by a validating parser? |
WebResourceRoot
| Metric name | Description |
| --------------------------------------------- | --------------------------------------------------------------------- |
| Tomcat\*\_WebResourceRoot\_\*allowLinking | Does this resources implementation allow the use of symbolic links? |
| Tomcat\*\_WebResourceRoot\_\*cachingAllowed | Is in-memory caching of resource content and metadata enabled? |
| Tomcat\*\_WebResourceRoot\_\*hitCount | The number of requests for resources that were served from the cache. |
| Tomcat\*\_WebResourceRoot\_\*lookupCount | The number of requests for resources in the WebResourceRoot. |
| Tomcat\*\_WebResourceRoot\_\*maxSize | The maximum permitted size of the cache in kB. |
| Tomcat\*\_WebResourceRoot\_\*objectMaxSize | The maximum permitted size for a single object in the cache in kB. |
| Tomcat\*\_WebResourceRoot\_\*size | The current estimate of the cache size in kB. |
| Tomcat\*\_WebResourceRoot\_\*trackLockedFiles | Does this resources implementation track requests that lock files? |
| Tomcat\*\_WebResourceRoot\_\*ttl | The time-to-live for cache entries in milliseconds. |