Lifecycle Query Engine configuration properties
Administrators can configure the way Lifecycle Query Engine operates by using the properties in the Lifecycle Query Engine Administration pages or release configuration (lqe.releaseconfig.properties) file.
For more information on the release configuration file, see Configuring Lifecycle Query Engine and connecting to external databases by using properties files.
SPARQL Service page
This table lists the
properties in the Lifecycle Query Engine>
Administration> SPARQL Service page along with the
corresponding release configuration file properties and their description.
| UI property | Release configuration file property | Definition | Default value |
|---|---|---|---|
| SPARQL Service Configuration - Query | |||
| Query Service Enabled | query.accessControlEnabled | Enable or disable query services. | Enabled |
| Query Result Set Limit | query.resultSetLimit | Limit the query result size to this value. | 3000 |
| Enforce Query Result Set Limit | query.resultSetLimitEnabled | Enforce the limit query result size. | Enabled |
| Query Timeout (seconds) | query.timeout | Length of time until the query is forced to timeout | 600 seconds |
| Elapsed time past the timeout for a rogue query (seconds) | query.rogueQueryLimitSeconds | Length of time after the query times out before LQE determines that the query is rogue | 180 seconds |
| HTTP Response Caching Enabled | query.httpResponseCachingEnabled | Enable the HTTP cache-control response header ("cache-control"). | Enabled |
| HTTP Response Max Age (seconds) | query.httpResponseMaxAgeSeconds | HTTP cache response header for the maximum time before a cached copy of a resource expires (max-age) | 120 |
| Query Result Caching Enabled | query.resultCachingEnabled | Enable LQE query result caching. | Enabled |
| Query Result Cache Expiration (seconds) | query.resultCacheExpirationSeconds | Maximum time to keep LQE query cache results | 120 |
| Forcefully cancel rogue queries when detected | query.rogueQueryRestart | Stop a rogue query when it is detected. | Enabled |
| SPARQL Service Configuration - Timeout Monitoring | |||
| Default Query Timeouts Warning Threshold (% Usage 1-99) | query.timeoutsLow | Minimum percentage of query timeouts before the warning threshold is reached | 5 |
| Default Query Timeouts Critical Threshold (% Usage: 1-99) | query.timeoutsHigh | The minimum percentage of query timeouts before the critical threshold is reached | 20 |
| The hour of each day to generate query reports (1-24) | query.reportHourOfDay | The hour of the day to send notifications about timed-out queries | 24 |
| SPARQL Service Configuration - Load Shedding | |||
| Query Load Shedding Enabled | query.loadEnabled | Enable or disable query load shedding. | Enabled |
| Default Memory Warning Threshold (% Usage: 1-99) | query.memoryLow | Memory warning threshold | 75 |
| Default CPU Warning Threshold (% Usage 1-99) | query.cpuLow | CPU warning threshold | 75 |
| Default Native Memory Warning Threshold (% Usage: 1-99) | query.phyLow | Native memory warning threshold | 75 |
| Default System CPU Warning Threshold (% Usage 1-99) | query.sysLow | System CPU warning threshold | 75 |
| Default Memory Critical Threshold (% Usage: 1-99) | query.memoryHigh | Memory critical threshold | 95 |
| Default CPU Critical Threshold (% Usage: 1-99) | query.cpuHigh | CPU critical threshold | 95 |
| Default Native Memory Critical Threshold (% Usage: 1-99) | query.phyHigh | Native memory critical threshold | 95 |
| Default System CPU Critical Threshold (% Usage: 1-99) | query.sysHigh | System CPU critical threshold | 95 |
| Max time of a fast query (milliseconds) | query.fastQueryLimitMilliseconds | The execution time for a query to be considered a fast query for load shedding. | 3000 |
| SPARQL Service Configuration - Access Control | |||
| Ignore data provider Access Controls | query.accessControlEnabled | Enable or disable access control. | Disabled |
Advanced Properties page
This table lists the
properties in the Lifecycle Query Engine>
Administration> Advanced Properties page along with the
corresponding release configuration file properties and their description.
| UI property | Release configuration file property | Definition | Default value |
|---|---|---|---|
| Advanced Properties Configuration - HTTP | |||
| Connection Timeout (seconds) | app.http.connectionTimeout | HTTP connection timeout | 60 |
| Socket Timeout (seconds) | app.http.socketTimeout | HTTP socket timeout | 300 |
| Advanced Properties Configuration - TRS Processing | |||
| Create Index for Full Text Search | dataset.provider.useFtsIndexes | Clear this checkbox to disable creation of the text indexes. Jazz® Reporting Service (JRS) reports
that use LQE as the
data source do not use the full-text search (FTS) capability that is provided by the Lucene library.
Link Index Provider (LDX) also does not use FTS. After you disable FTS, the Full Text
Search tab is not present on the LQE Query page. Note:
|
Enabled |
| Advanced Properties Configuration - NTP Time Synchronization | |||
| NTP Server Address | app.ntp.server | Network time protocol server URL | Blank |
| Maximum Allowed Offset (milliseconds) | app.ntp.max.interval | The maximum difference allowed in milliseconds between server times | 300000 |
| Advanced Properties Configuration - Troubleshooting | |||
| Expiration period for downloaded TRS feeds (hours) | app.downloadlink.timeout | The number of hours to keep a TRS feed download before deleting it from the file system. | 48 |
| Number of slowest queries to receive in email | query.maxQueries | The number, which must be between 1 and 999, of slowest queries that are emailed to the JRS admin. | 10 |
Internal Properties page
This table lists the
properties in the Lifecycle Query Engine>
Administration> Advanced Properties> Internal Properties
page along with the corresponding release configuration file properties and their
description.
Note: You can view the internal properties by clicking the Show Internal
Properties button in the Advanced Properties page.
| UI property | Release configuration file property | Definition | Default value |
|---|---|---|---|
| Internal Properties Configuration - Query | |||
| Stream Result Set | query.streamingResultsEnabled | Enable or disable query result streaming. | Disabled |
| Validate Text Query Pattern | query.validateFtsPattern | Notify users about unsupported characters in an FTS query. | Disabled |
| Maximum SPARQL Query Log Size (bytes) | query.logStringLimit | Limit the maximum length of the SPARQL query which LQE logs. | 10240 bytes |
| Minimum Text Match Score | query.ftsMinScore | Set the minimum full text search score for the query results. | 0 |
| Maximum Text Query Bindings | query.ftsMaxBindings | Limit the number of Lucene results, which get bound in a SPARQL execution. | 10000 |
| Maximum Text Query Clauses | dataset.provider.ftsMaxClause | Maximum number of clauses in a full text search query. | 1024 |
| Text Index Language | dataset.provider.ftsLang | Specify a language used for full text search. Note: Only applicable to the Japanese
language.
|
English |
| Maximum Pending Writebacks | dataset.provider.maxPendingWritebacks | A Journal is a Jena TDB write-ahead log, and this property is the threshold when stack suspension is enabled if the number of transactions in the journal exceed this maximum. | 50 |
| Heap Usage Threshold | dataset.provider.heapUsageThreshold | This value, representing a percentage, indicates the threshold the JVM heap must reach before incoming activities are suspended if Suspension Enabled is enabled. For example, if Suspension Enabled is checked, and the value of the Heap Usage Threshold is 0.85, all incoming activities are suspended when the JVM heap utilization reaches 85% of maximum heap space. | 0.85 |
| Heap Suspension Enabled | dataset.provider.heapSuspensionEnabled | Enables or disables suspension of incoming queries when the heap utilization reaches the percentage value that is specified in Heap Usage Threshold | Disabled |
| Stack Suspension Enabled | dataset.provider.stackSuspensionEnabled | Enables or disables suspension of incoming queries when the number of pending Journal Writebacks reaches the value that is specified in Maximum Pending Writebacks | Enabled |
| Suspend Timeout (seconds) | dataset.provider.suspendedTimeout | The maximum amount of time in seconds that incoming queries must be suspended. | 800 seconds |
| Remove Temporary Properties | dataset.provider.removeTempProperties | Indicate whether LQE must remove temporary internal properties from graphs before the graph is committed. | Enabled |
| Filter Internal Properties | dataset.provider.filterInternalProperties | Indicate whether LQE must filter internal metadata from query results. | Enabled |
| Disable All Data History Filter | query.disableMetricFilter | When querying the historical data partition without a configuration context, return trend data from any configuration context instead of only trend data collected without a configuration context. | Disabled |
| Show missing, skipped, and out of date resources on the Query Statistics page. When enabled, queries might run slower. | query.traceConfigs | Run a report completeness check on all queries. Note: This setting must be used only for
troubleshooting or debugging.
|
Disabled |
| Internal Properties Configuration - HTTP | |||
| ACP Connection Timeout (seconds) | query.acp.httpConnectionTimeout | ACP HTTP connection timeout | 5 seconds |
| ACP Socket Timeout (seconds) | query.acp.socketTimeout | ACP HTTP socket timeout | 5 seconds |
| Maximum Total Connections | app.http.maxTotalConnections | Maximum number of HTTP connections | 250 |
| Maximum Connections Per Route | app.http.maxConnectionsPerRoute | Maximum number of HTTP connections per route | 50 |
| Internal Properties Configuration - TRS Processing | |||
| Selections Relational Database Batch Size | lqe.indexer.selectionsBatchSize | The number of selects (selects in a selection) allowed in each batch of updates to the RDB. | 425 |
| Enable Selections Relational Database Batch | lqe.indexer.selectionsBatchEnabled | Choose to enable batching of inserts - it appears to be slower in some database vendors. | Enabled |
| Selections Relational Database Maximum Retries per Batch | lqe.indexer.selectionsMaxRetries | The maximum number of retries on each batch of updates to the RDB. | 3 |
| Selections Cache Expiration (seconds) | lqe.indexer.selectionsCacheExp | The time in the seconds after which the entries in the selections cache expires. | 120 |
| JDBC Page Size for Selections Queries | app.jdbc.selectionsPageSize | The number of results that are sent over the network at a time to LQE when querying the database for indexed configuration data. These are internal queries for LQE to assemble data, and the value does not affect the results returned by LQE reports. | 500 |
| Write Queue Size | indexer.batchDescriptorQueueSize | Maximum number of batches that an indexing agent has queued for writing at any point. Beyond that the agent waits for the writer to catch up. | 25 |
| Batch Size for Writes | indexer.batchSize | The number of triples that are allowed in each batch of updates to the Jena TDB. | 2500 |
| Batches Between Status Writes | indexer.batchesBetweenStatusWrites | The number of batch writes that must happen before the indexing agent writes its status to the database. A value of 0 indicates that the status should be updated on every batch write. | 4 |
| Process Queue Size | indexer.fetcherTaskQueueSize | Maximum number of fetcher tasks that an indexing agent has queued for fetching at any point. | 100 |
| Strict Syntax Mode | indexer.fetcherStrictSyntaxEnabled | If disabled, LQE drops invalid triples from resources when possible. If enabled, syntax errors are not ignored. Any resources with syntax errors show up as errors. | Disabled |
| Use Dynamic Fetcher Thread Count | indexer.dynamicFetcherThreadCountEnabled | When enabled, the indexer would keep adding fetcher threads until it sees that a new thread didn't improve the fetch rate. | Disabled |
| Batch Queue Size | indexer.namedGraphUpdateQueueSize | Batch queue size for writing - default is 2500 triples per batch, 1 batch = 1 commit | 500 |
| Deletion Task Query Timeout (seconds) | indexer.deletionTaskQueryTimeout | The SPARQL query timeout (in seconds) for the query to execute deletion and cleanup tasks. | 1200 |
| Deletion Task Query Limit | indexer.deletionTaskQueryLimit | Batch size for deletions, for example if 1000, the agent queries for 1000 resources to delete, delete them, then repeat until there are no more to delete. | 1000 |
| Deletion Task Query Retry Attempts | indexer.deletionTaskQueryRetries | LQE must execute queries to find items to delete when removing a data provider. This method returns the number of attempts for each deletion task query if it times out. | 3 |
| TRS HTTP Cache Enabled (requires restart) | indexer.trsHttpResponseCacheEnabled | Choose to enable the TRS HTTP response cache. | Enabled |
| TRS HTTP Cache Max Entries | indexer.trsHttpResponseCacheMaxEntries | The maximum number of entries allowed in the TRS HTTP response cache. | 100 |
| Data Providers Refresh Interval (seconds) | indexer.datasources.refresh.interval | The interval period in which the data providers page results refresh. | 4 |
| String Truncation and Logging of Large Resources Enabled | indexer.content.threshold.enabled | Choose to enable logging resources whose content goes over a specific threshold. | Enabled |
| Minimum Size of a Large Resource (bytes) | indexer.content.threshold.length | The threshold length (in bytes) of the content to be logged. | 2500000 |
| String Truncation Length for Large Resources (characters) | indexer.string.truncation.length | The number of characters to truncate from string literals in incoming data. | 5000 |
| Maximum Number of TRS Download Files to Keep for Each Data Provider | indexer.max.trs.download.files | The maximum number of TRSDownload files created during validation to be kept in the file system. | 5 |
| Maximum number of fetched pages to be loaded in memory | indexer.fetched.pages.threshold | The maximum number of pages to be added to the model in memory, all the other pages go to disk. | 100 |
| Maximum Number of Change Log Entries to Store for Verification | indexer.maxPreviousChangeEntries | The maximum number of change events to be stored for the verification of the previous change log entries against the TRS feed. If the number of change log entries that are processed goes over the threshold, then no entries are stored and there is no verification during the next Change Log Task. | 10000 |
| Internal Properties Configuration - Health Metrics | |||
| Health Metrics Maximum Age (ms) | app.metrics.maxAge | Maximum age for metrics in milliseconds before they are scrubbed from database. | 604800000 milliseconds |
| Health Metrics Scrubber Period (ms) | app.metrics.scrubberPeriod | The period of time in milliseconds when the scrubber wakes up to scrub the database. | 7200000 milliseconds |
| Health Metrics Graph Count Period (ms) | dataset.provider.graphCountMetricWriteInterval | How frequently graph count metrics are written. | 60000 milliseconds |
| Maximum Number of Query Health Metrics | app.metrics.maxQueryMetrics | Maximum number of query metrics kept in the database | 500 |
| Memory and Dataset Health Metrics Push Rate (seconds) | app.memoryAndDatasetMetricsPushRateSeconds | The number of seconds between updates to the memory and dataset metrics | 60 seconds |
| Maximum Number of Metric Delivery Attempts | app.metrics.maxDispatchAttempts | The maximum number of times the dispatcher attempts to deliver any individual metric to a destination. | 3 |
| Delay Before Retrying Failed Metric Delivery (seconds) | app.metrics.dispatchRetryDelay | The number of seconds to wait before retrying a failed metric delivery. | 20 |
| Number of days to be included in the Validation Feed | app.metrics.validationFeedNumDays | The number of days to be included in the validation feed. | 30 |
| Internal Properties Configuration - Authorization | |||
| Anonymous Feed Access Enabled | app.authorization.annonymousFeedAccessEnabled | Enable or disable feed access. | Disabled |
| Internal Properties Configuration - Access Control | |||
| LDAP Group Synchronizer Interval (minutes) | app.ldap.group.synch.interval.minutes | Period of time the LDAP groups are synchronized with LDAP directories | 30 minutes |
| Access Context List Refresh Rate (minutes) | app.acl.refreshRateMinutes | Period of time when the Access Context Lists are refreshed. | 15 minutes |
| Use case insensitive user ID matching | app.ac.case.insensitive | Manually set user ID case-insensitive matching. Indicate to LQE to use case-insensitive comparisons for user IDs in access control. | Disabled |
| Access Context Synchronizer Refresh Rate (minutes) | app.acsync.refreshRateMinutes |
Period of time that Access Contexts are synchronized with Jazz Team Server (JTS) membership (in minutes). You can change this default interval from to reduce the refresh time of project membership information. For example, before you add members to a project in an Engineering Lifecycle Management application, you might change this interval to 1 minute so that the new project members can see the information that they need in Report Builder sooner. After LQE refreshes, change the interval back to its previous or default value. |
15 |
| JTS Properties Synchronizer Refresh Rate (minutes) | app.jtssync.refreshRateMinutes | Period of time a background process wakes up to monitor changes to the Use case insensitive user ID matching property in JTS | 25 |
| Internal Properties Configuration - User Search | |||
| User Search Maximum Number of Users Returned | app.user.search.max.results | The maximum number of users to display from an LDAP search. | 100 |
| User Search Timeout (seconds) | app.user.search.timeout.secs | The timeout value for ldap user search and selection (seconds) | 20 seconds |
| Internal Properties Configuration - Horizontal Scaling | |||
| Node Heartbeat Interval (ms) | app.heartbeat.interval | Interval of time between node heartbeat correspondence | 60000 milliseconds |
| Missed Heartbeat Threshold (heartbeats) | app.heartbeat.threshold | Number of heartbeats missed until the node is considered offline. | 5 heartbeats |
| Configuration Refresh Rate (ms) | app.kvreader.refreshRateMillis | The Key Value Reader refresh rate for configuration changes in milliseconds | 1000 |
| User Metadata Refresh Rate (ms) | app.kvreader.userprefs.refreshRateMillis | The Key Value Reader refresh rate for user preference changes in milliseconds | 60000 |
| Vocabulary Refresh Rate (ms) | app.kvreader.vocab.refreshRateMillis | The Key Value Reader refresh rate for vocabulary changes in milliseconds | 60000 |
| Node Metadata Refresh Rate (ms) | app.kvreader.cache.refreshRateMillis | The Key Value Reader refresh rate for node metadata changes in milliseconds | 10000 |
| TRS Processing Metadata Refresh Rate (ms) | app.kvreader.state.refreshRateMillis | The Key Value Reader refresh rate for TRS state changes in milliseconds | 1000 |
| Temporary Data Refresh Rate (ms) | app.kvreader.temp.refreshRateMillis | The Key Value Reader refresh rate for temporary data changes in milliseconds | 1000 |
| Internal Properties Configuration - Load and Health Monitoring | |||
| Monitor Native System Memory Load | app.load.monitorNativeMem | Enable monitoring native memory (RAM) usage using the JMX data published by the JVM. | Disabled |
| Monitor CPU Usage Load | app.load.monitorCpu | Enable monitoring system and application CPU usage using the JMX data that is published by the JVM. | Disabled |
| Load Monitor Refresh Rate (milliseconds) | app.load.refreshRateSeconds | The frequency in which the load monitor checks the system in milliseconds. | 60000 |
| Disk usage warning threshold (1-99%) | app.disk.low | If disk space usage is lesser than this percentage, then the disk usage is considered okay. | 75 |
| Disk usage critical threshold (1-99%) | app.disk.high | If disk space usage is higher than this percentage, then the disk usage is considered to be high. | 90 |
| Internal Properties Configuration - Backup | |||
| Backup Database In Multiple Blocks | app.backup.prop.useBlocks | When backing up indexed configuration data, query for it in sorted blocks instead of all at once. | Disabled |
| Block Size for Database Backup (rows) | app.backup.prop.blockSize | The maximum size of each individual block to query for, if multiple blocks are used during the backup. | 1000000 |
| JDBC Fetch Size for Database Backup (rows) | app.backup.prop.fetchSize | The number of results that are sent over the network at a time to LQE when querying the database to back up indexed configuration data. | 1000 |
| Expected size of compressed backups (% of uncompressed size) | app.backup.prop.compressedSize | Estimates the required disk space to start a compressed backup. | 25 |
| Internal Properties Configuration - Compaction | |||
| Maximum Heap MB (0 for 25% of current JVM heap) | app.compaction.maxHeapMB | The maximum heap for the compaction process | 4096 |
| Internal Properties Configuration - History Jobs | |||
| Number of History Job Threads | app.historyJobs.numThreads | Specify the number of threads to use for running history jobs. | 1 |
| History Job Timeout (seconds) | app.historyJobs.queryTimeout | The query timeout for metric jobs (in seconds) | 300 |
| Internal Properties Configuration - REST APIs | |||
| Maximum time to keep response files on disk (in hours) | app.api.selconfig.maxTimePersistResponse | The maximum time the response of the Selection and Configuration APIs can be kept (in hours) | 24 |
| Maximum time to cache responses (in minutes) | app.api.selconfig.maxTimeCachingResponse | The maximum time the response of the Selection and Configuration APIs can be reused (in minutes) | 2 |
| Maximum number of elements per page | app.api.selconfig.maxPerPage | The maximum number of elements per page to be returned by the API. | 10000 |
| Number of REST API tasks threads | app.api.selconfig.numThreads | The number of threads for the Paging API executor. | 1 |
| Remove archived JTS users from email notifications | app.api.notification.remove.archived.jts.users | When sending notification emails, do not send to any recipient whose email address matches an archived user in JTS. | Enabled |
Backup pages
This table lists the
properties in the Lifecycle Query Engine>
Administration> Backup pages along with the corresponding
release configuration file properties and their description.
| UI property | Release configuration file property | Definition | Default value |
|---|---|---|---|
| Backup Properties | |||
| Enable Backups | backup.enable | Enable backup. | Disabled |
| Run Node | backup.nodeid | LQE node ID to back up. | Blank |
| Run Days | backup.days | Days on which to execute a backup. | All Disabled |
| Run Time | backup.time | Time to do backup. | 12:00AM |
| Compress Backups | backup.compressed | Enable backup compression. | Disabled |
| Backup directory on server | backup.pathOnServer | Set the path on the server for backup data. | Blank |
Compaction pages
This table lists the
properties in the Lifecycle Query Engine>
Administration> Compaction pages along with the
corresponding release configuration file properties and their description.
| UI property | Release configuration file property | Definition | Default value |
|---|---|---|---|
| Compaction Properties | |||
| Enable Compactions | compaction.enable | Enable compaction. | Enabled |
| Run Node | compaction.nodeid | LQE node ID to compact | Blank |
| Run Days | compaction.days | Days on which to execute a compaction. | Saturday |
| Run Time | compaction.time | Time to do compaction. | 2:00AM |
Notifications page
This table lists the
properties in the Lifecycle Query Engine>
Administration> Notifications page along with the
corresponding release configuration file properties and their description.
| UI property | Release configuration file property | Definition | Default value |
|---|---|---|---|
| Notification Properties | |||
| Recipients | notification.recipients | The list of email recipients for notification messages | email addresses |
| Data provider events | notification.datasourceSuccessful.enabled | Receive email notifications when data provider events are successful. | Disabled |
| Data provider events | notification.datasourceWarnings.enabled | Receive email notifications when data provider event warnings are encountered. | Disabled |
| Data provider events | notification.datasourceFailures.enabled | Receive email notifications when data provider event failures are encountered. | Disabled |
| Backup events | notification.backupSuccessful.enabled | Receive email notifications when backup events are successful. | Disabled |
| Backup events | notification.backupWarnings.enabled | Receive email notifications when backup event warnings are encountered. | Disabled |
| Backup events | notification.backupFailures.enabled | Receive email notifications when backup event failures are encountered. | Disabled |
| Load Monitoring events | notification.loadSuccessful.enabled | Receive email notifications when load monitoring events are successful. | Disabled |
| Load Monitoring events | notification.loadWarnings.enabled | Receive email notifications when load monitoring event warnings are encountered. | Disabled |
| Load Monitoring events | notification.loadFailures.enabled | Receive email notifications when load monitoring event failures are encountered. | Disabled |
| Daily Query Performance events | notification.queryLoadSuccessful.enabled | Receive email notifications when daily query performance events are successful. | Disabled |
| Daily Query Performance events | notification.queryLoadWarnings.enabled | Receive email notifications when daily query performance event warnings are encountered. | Disabled |
| Daily Query Performance events | notification.queryLoadFailures.enabled | Receive email notifications when daily query performance event failures are encountered. | Disabled |
| Disk usage events | notification.loadSuccessful.enabled | Receive email notifications when disk usage events are successful. | Disabled |
| Disk usage events | notification.loadWarnings.enabled | Receive email notifications when disk usage event warnings are encountered. | Disabled |
| Disk usage events | notification.loadFailures.enabled | Receive email notifications when disk usage event failures are encountered. | Disabled |
| Abnormal shutdowns | notification.diagnosticWarnings.enabled | Receive email notifications when abnormal shutdowns are detected. | Disabled |
JVM System Properties
| UI property | Definition | Default value |
|---|---|---|
| lqe.config.location | Path location of the configuration data and index location for LQE | ...\server\conf\lqe |
| lqe.sparql.queryLicenseCheckEnabled | Checks for operation com.ibm.team.jis.lifecycle.queryPathin the license |
false |
| lqe.cba.roleCheckDisabled | A workaround for a Liberty bug that causes the user role check to throw an NPE when container
authentication is used. When set to true, all users are assumed to have JazzAdminroles. |
false |
| lqe.http.useAcceptHeader20 | A workaround for tools that failed with TRS 2.0 accept headers. | true |
| lqe.backup.table.blocksize | Modify the blocksize to export relational tables (particularly the selects table) to improve LQE export performance. | 1000000 |
| lqe.restore.table.blocksize | Modify the blocksize to import from a backup the relational tables (particularly the selects table) to improve LQE import performance. | 650 |
| lqe.LRUConfigCache.size | Modify the LRU versioned resource (selects) cache size. | 500000 |
| lqe.lucene.nio | Force Lucene to use the java.nio's FileChannel's positional read, which allows multiple threads to read from the same file without synchronizing. | false |
| lqe.indexing.compareEtag | Compare etags for Selections type. | false |
| lqe.recalcGraphCount | Property to recalculate the graph count. | false |
| lqe.jena.direct.mode | Set Apache Jena direct or memory mapped mode | false |
| com.ibm.team.repository.transport.client.protocol | Override the transport client protocol. | SSL_TLS,TLS,SSL |
| lqe.indexer.retryInvalidUpdates.blocksize | Refetch invalid updates after a few minutes. This is blocksize for these invalid updates. | 1000 |
| lqe.indexer.retrySkipped.blocksize | For skipped resources due to socket timeouts and similar recoverable causes, retry the skipped resources later. This is blocksize for these skipped resources. | 1000 |
| tdb:settings or tdb.settings | Apply custom Apache Jena TDB settings to the JVM used for compaction. | Not set. |
JVM System Properties (Internal development use only)
| UI property | Definition | Default value |
|---|---|---|
| lqe.testDiscoverResourceGroups | For special test conditions where an indexTdb is created by extracting a previous index. | false |
| mocha.tdb.root | Path location of a TDB index for mocha to server as a TRS | Blank |
lqe.properties (Internal development use only)
| UI property | Definition | Default value |
|---|---|---|
| lqe.recalcGraphCount | Property to recalculate the graph count. | false |
| lqe.data.root | Specify the location where the Lifecycle Query Engine must create the data directories. | Directory path |
| lqe.use.external.datasource | If set to true, Lifecycle Query Engine looks for a JDBC Datasource named 'jdbc/LQEDB' | false |
| lqe.restore | Restore a Lifecycle Query Engine instance from a recent and previous LQE backup. | false |
| lqe.configMode | Use this property if you need to register Lifecycle Query Engine with a different Jazz Team Server or if you need to reregister with the same Jazz Team Server. | false |
| lqe.minimum.trs.refresh.rate | An administrator is prevented from setting a TRS refresh rate lesser than this value. | 60 secs |
| lqe.temp.directory | A path location where the Lifecycle Query Engine must create temporary data. | Directory path |
| lqe.locale.override | Lifecycle Query Engine determines the language and locale for its web UI by using the language preferences set in the web browser. The lqe.locale.override property forces an override over the locale from the web browser. | en_US |
| lqe.disable.secure.cookies | Authentication-related cookies that are used by Lifecycle Query Engine are secure and are not sent over an unsecured connection. To access LQE using HTTP instead of HTTPS, disable secure cookies by changing the value of this property to true. | false |
| lqe.resetLastProcessed | A property to reset the last processed event for a TRS to the cutoff event specified in the base log. | trs url |
| lqe.appTitle | An LDX property to set the application title in LQE | Link Index Provider |
| lqe.hideServiceDiscover | A Link Index Provider (LDX) property to disable default service discovery. | true |
| lqe.noSetupWizard | An LDX property to not use the LQE setup wizard. | false |
| lqe.linkIndexProvider | An LDX property to force link index provider capabilities. | true |