Hi Team,

We are trying to rebuilt search index but it is giving below errors in log.

2019-10-22 08:14:19,731 [ttp-nio-8998-exec-23] [TABTHREAD0] [ ] [ ITSM:08.03.01] ( internal.mgmt.Executable) ERROR xxx| Proprietary information hidden - Exception

com.pega.pegarules.priv.search.nextgen.FTSException: Unable to derive classname for index: work

at com.pega.platform.pegasearch.indexer.internal.IndexMetadataCache.getIndexClassName(IndexMetadataCache.java:86) ~[pegasearch.jar:?]

at com.pega.platform.pegasearch.indexer.internal.IndexMetadataCache.getBaseClassName(IndexMetadataCache.java:59) ~[pegasearch.jar:?]

at com.pega.platform.pegasearch.indexer.internal.IndexExecutorDBHelper.getBaseClassNameForIndex(IndexExecutorDBHelper.java:451) ~[pegasearch.jar:?]

at com.pega.platform.pegasearch.indexer.internal.IndexExecutorDBHelper.getClassesMappedToIndex(IndexExecutorDBHelper.java:411) ~[pegasearch.jar:?]

at com.pega.platform.pegasearch.internal.IndexHelper.getClassesMappedToIndex(IndexHelper.java:168) ~[pegasearch.jar:?]

at com.pegarules.generated.activity.ra_action_pzgetclassesmappedtoindex_e41765ac454675281e84c9b6345fca1e.step1_circum0(ra_action_pzgetclassesmappedtoindex_e41765ac454675281e84c9b6345fca1e.java:162) ~[?:?]

at com.pegarules.generated.activity.ra_action_pzgetclassesmappedtoindex_e41765ac454675281e84c9b6345fca1e.perform(ra_action_pzgetclassesmappedtoindex_e41765ac454675281e84c9b6345fca1e.java:72) ~[?:?]

at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:2744) ~[prprivate-session.jar:?]

at com.pega.pegarules.exec.internal.declare.infengine.pages.DeclarativePageDirectoryImpl.runRule(DeclarativePageDirectoryImpl.java:1209) ~[prprivate-exec.jar:?]

at com.pega.pegarules.exec.internal.declare.infengine.pages.DeclarativePageDirectoryImpl.runLoadActivity(DeclarativePageDirectoryImpl.java:462) ~[prprivate-exec.jar:?]

at com.pega.pegarules.session.internal.mgmt.base.handler.ReadOnlyDataPageHandler.loadDataPage(ReadOnlyDataPageHandler.java:248) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.mgmt.base.handler.ReadOnlyDataPageHandler.findDataPageInner(ReadOnlyDataPageHandler.java:457) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.mgmt.base.handler.ReadOnlyDataPageHandler.findDataPage(ReadOnlyDataPageHandler.java:383) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.mgmt.base.AbstractPageDirectory.findDataPageInCurrentDir(AbstractPageDirectory.java:949) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.mgmt.base.AbstractPageDirectory.getDirectPage(AbstractPageDirectory.java:729) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.mgmt.base.ThreadPageDir.getDirectPage(ThreadPageDir.java:366) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.mgmt.base.ThreadPageDir.getPage(ThreadPageDir.java:324) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.mgmt.PRThreadImpl.getPage(PRThreadImpl.java:606) ~[prprivate-session.jar:?]

at com.pega.pegarules.data.internal.clipboard.PropertyReferenceImpl.getTopPage(PropertyReferenceImpl.java:2061) ~[prprivate-data.jar:?]

at com.pega.pegarules.data.internal.clipboard.PropertyReferenceImpl.resolveEmbeddedPages(PropertyReferenceImpl.java:1645) ~[prprivate-data.jar:?]

at com.pega.pegarules.data.internal.clipboard.PropertyReferenceImpl.doGet(PropertyReferenceImpl.java:1199) ~[prprivate-data.jar:?]

at com.pega.pegarules.data.internal.clipboard.PropertyReferenceImpl.doGet(PropertyReferenceImpl.java:1179) ~[prprivate-data.jar:?]

at com.pega.pegarules.data.internal.clipboard.PropertyReferenceImpl.doGet(PropertyReferenceImpl.java:1163) ~[prprivate-data.jar:?]

at com.pega.pegarules.data.internal.clipboard.PropertyReferenceImpl.get(PropertyReferenceImpl.java:993) ~[prprivate-data.jar:?]

at com.pega.pegarules.session.internal.mgmt.Executable.getProperty(Executable.java:2866) ~[prprivate-session.jar:?]

at com.pegarules.generated.pzPopulateFilteredindicesMap_080101_568581433766433307.pzPopulateFilteredindicesMap08_01_01(pzPopulateFilteredindicesMap_080101_568581433766433307.java:148) ~[?:?]

at com.pegarules.generated.pzPopulateFilteredindicesMap_080101_568581433766433307.invoke(pzPopulateFilteredindicesMap_080101_568581433766433307.java:119) ~[?:?]

at com.pega.pegarules.generation.internal.library.LibraryRuntime.resolveAndinvokeFunctionViaReflection(LibraryRuntime.java:230) ~[prprivate-generation.jar:?]

at com.pega.pegarules.generation.internal.library.LibraryRuntime.invokeLibraryRuntime(LibraryRuntime.java:121) ~[prprivate-generation.jar:?]

at com.pega.pegarules.session.internal.mgmt.Executable.invokeLibraryRuntime(Executable.java:9490) ~[prprivate-session.jar:?]

at com.pega.pegarules.priv.generator.LibrarySupport.resolveAndInvokeFunctionViaReflectionWithException(LibrarySupport.java:275) ~[prpublic.jar:?]

at com.pegarules.generated.html_section.ra_stream_pzlpftsreindexingclassessection_f349c8a25212e8fb51ae54c284794d3d.gridBeginLayout_3(ra_stream_pzlpftsreindexingclassessection_f349c8a25212e8fb51ae54c284794d3d.java:2163) ~[?:?]

at com.pegarules.generated.html_section.ra_stream_pzlpftsreindexingclassessection_f349c8a25212e8fb51ae54c284794d3d.gridLayout_1(ra_stream_pzlpftsreindexingclassessection_f349c8a25212e8fb51ae54c284794d3d.java:4601) ~[?:?]

at com.pegarules.generated.html_section.ra_stream_pzlpftsreindexingclassessection_f349c8a25212e8fb51ae54c284794d3d.gridLayoutAsSection_1(ra_stream_pzlpftsreindexingclassessection_f349c8a25212e8fb51ae54c284794d3d.java:4636) ~[?:?]

at com.pegarules.generated.html_section.ra_stream_pzlpftsreindexingclassessection_f349c8a25212e8fb51ae54c284794d3d.pzSectionBody_1(ra_stream_pzlpftsreindexingclassessection_f349c8a25212e8fb51ae54c284794d3d.java:360) ~[?:?]

at com.pegarules.generated.html_section.ra_stream_pzlpftsreindexingclassessection_f349c8a25212e8fb51ae54c284794d3d.performStream_1(ra_stream_pzlpftsreindexingclassessection_f349c8a25212e8fb51ae54c284794d3d.java:6793) ~[?:?]

at com.pegarules.generated.html_section.ra_stream_pzlpftsreindexingclassessection_f349c8a25212e8fb51ae54c284794d3d.execute(ra_stream_pzlpftsreindexingclassessection_f349c8a25212e8fb51ae54c284794d3d.java:146) ~[?:?]

at com.pega.pegarules.session.internal.mgmt.Executable.getStream(Executable.java:4263) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.mgmt.Executable.getStream(Executable.java:4085) ~[prprivate-session.jar:?]

at com.pegarules.generated.html.ra_stream_reloadsection_eebe04dd0c8bfd1e29f3ade7d566a7b0.performStream_11(ra_stream_reloadsection_eebe04dd0c8bfd1e29f3ade7d566a7b0.java:2740) ~[?:?]

at com.pegarules.generated.html.ra_stream_reloadsection_eebe04dd0c8bfd1e29f3ade7d566a7b0.execute(ra_stream_reloadsection_eebe04dd0c8bfd1e29f3ade7d566a7b0.java:113) ~[?:?]

at com.pega.pegarules.session.internal.mgmt.Executable.getStream(Executable.java:4263) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.mgmt.Executable.getStream(Executable.java:4085) ~[prprivate-session.jar:?]

at com.pega.pegarules.pub.runtime.AbstractActivity.showHtml(AbstractActivity.java:261) ~[prpublic.jar:?]

at com.pegarules.generated.activity.ra_action_reloadsection_ec7d947eefe7dafe8f10d2a4ac62a55d.step12_circum0(ra_action_reloadsection_ec7d947eefe7dafe8f10d2a4ac62a55d.java:1388) ~[?:?]

at com.pegarules.generated.activity.ra_action_reloadsection_ec7d947eefe7dafe8f10d2a4ac62a55d.perform(ra_action_reloadsection_ec7d947eefe7dafe8f10d2a4ac62a55d.java:259) ~[?:?]

at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:2744) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.mgmt.base.ThreadRunner.runActivitiesAlt(ThreadRunner.java:646) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.mgmt.PRThreadImpl.runActivitiesAlt(PRThreadImpl.java:517) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.runActivities(HttpAPI.java:4002) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequestInner(EngineAPI.java:438) ~[prenginext.jar:?]

at sun.reflect.GeneratedMethodAccessor172.invoke(Unknown Source) ~[?:?]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_171]

at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_171]

at com.pega.pegarules.session.internal.PRSessionProviderImpl.performTargetActionWithLock(PRSessionProviderImpl.java:1393) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:1125) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:979) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequest(EngineAPI.java:361) ~[prenginext.jar:?]

at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.invoke(HttpAPI.java:916) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl._invokeEngine_privact(EngineImpl.java:331) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:274) ~[prprivate-session.jar:?]

at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:251) ~[prprivate-session.jar:?]

at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngineInner(JNDIEnvironment.java:275) ~[prpublic.jar:?]

at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngine(JNDIEnvironment.java:220) ~[prpublic.jar:?]

at com.pega.pegarules.web.impl.WebStandardImpl.makeEtierRequest(WebStandardImpl.java:743) ~[prwebj2ee.jar:?]

at com.pega.pegarules.web.impl.WebStandardImpl.doPost(WebStandardImpl.java:413) ~[prwebj2ee.jar:?]

at sun.reflect.GeneratedMethodAccessor164.invoke(Unknown Source) ~[?:?]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_171]

at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_171]

at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethod(PRBootstrap.java:370) ~[prbootstrap-8.1.1-247.jar:8.1.1-247]

at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethodPropagatingThrowable(PRBootstrap.java:411) ~[prbootstrap-8.1.1-247.jar:8.1.1-247]

at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethodPropagatingThrowable(AppServerBridgeToPega.java:224) ~[prbootstrap-api-8.1.1-247.jar:8.1.1-247]

at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethod(AppServerBridgeToPega.java:273) ~[prbootstrap-api-8.1.1-247.jar:8.1.1-247]

at com.pega.pegarules.internal.web.servlet.WebStandardBoot.doPost(WebStandardBoot.java:129) ~[prbootstrap-api-8.1.1-247.jar:8.1.1-247]

at javax.servlet.http.HttpServlet.service(HttpServlet.java:648) ~[servlet-api.jar:?]

at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) ~[servlet-api.jar:?]

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292) ~[catalina.jar:8.0.32]

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[catalina.jar:8.0.32]

at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-websocket.jar:8.0.32]

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[catalina.jar:8.0.32]

at org.apache.catalina.core.ApplicationFilterChain.doFilter(Applic

***Edited by Moderator: Lochan to add SR tag***