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What Is Library Cache Mutex X ->>->>->> http://shorl.com/stofofropysehe
I,,think,,this,,wait,,event,,is,,not,,available,,in,,DOC.,,I,,would,,recommend,,you,,see,,MOS,,Note,,WAITEVENT:,,'library,,cache:,,mutex,,X',,ID,,727400.1.Latch,,,,and,,,,Mutex,,,,Contention,,,,Troubleshooting,,,,in,,,,OracleTanel,,,,Pder,,,,If,,,,you,,,,like,,,,this,,,,session.,,,,.th.Oracle,,,,Latches,,,,and,,,,Mutexes,,,,www.oracleinaction.com.,,,,LATCHES.,,,,.,,,,library,,,,cache:,,,,mutex,,,,X.,,,,library,,,,cache:,,,,mutex,,,,S.,,,,OSD,,,,IPC,,,,library.,,,,library,,,,cache,,,,revalidation.Hi,,,,Everyone!!,,,,Today,,,,we,,,,had,,,,issues,,,,in,,,,2,,,,node,,,,Exadata,,,,RAC,,,,cluster,,,,with,,,,high,,,,concurrency,,,,wait,,,,"library,,,,cache:,,,,mutex,,,,X".,,,,Posting,,,,this,,,,as,,,,it,,,,would,,,,help,,,,some,,,,one,,,,.Some,,,,background,,,,to,,,,start,,,,with,,,,,,,,We,,,,have,,,,n-tier,,,,J2EE,,,,web,,,,applications,,,,and,,,,we,,,,use,,,,spring,,,,jdbc,,,,templates.,,,,We,,,,use,,,,connection,,,,pool,,,,,however,,,,we,,,,dont,,,,use,,,,statement,,,,caching.MidwayUSA,,,,is,,,,a,,,,privately,,,,held,,,,American,,,,retailer,,,,of,,,,various,,,,hunting,,,,and,,,,outdoor-related,,,,products.As,,soon,,as,,more,,than,,100,,child,,cursors,,have,,been,,in,,the,,library,,cache,,,the,,cursor:,,mutex,,s/x,,waits,,will,,become,,more,,pronounced.,,In,,this,,case,,,.Embarcadero,,,,DB,,,,Optimizer.,,,,Search,,,,this,,,,site.,,,,.,,,,Instead,,,,of,,,,"library,,,,cache,,,,pin",,,,mutexes,,,,are,,,,used,,,,under,,,,"cursor:,,,,.,,,,mutex,,,,X,,,,building,,,,a,,,,new,,,,.Library,,cache,,lock,,(%),,Description.,,The,,library,,cache,,lock,,controls,,the,,concurrency,,between,,clients,,of,,the,,library,,cache,,by,,acquiring,,a,,lock,,on,,the,,object,,handle,,so,,.RE:,,Oracle,,Library,,Cache.,,From:,,.,,I,,am,,just,,trying,,to,,figure,,out,,if,,this,,is,,related,,to,,a,,library,,cache,,mutex,,x,,wait,,which,,I,,believe,,maybe,,related,,to,,a,,vpd,,policy.Mutex.,,ReleaseMutex,,Method,,().NET,,Framework,,.,,Whenever,,a,,thread,,acquires,,a,,mutex,,.How,,to,,identify,,concurrency,,issues,,in,,Oracle,,11g?,,.,,17.9,,,,Concurrency,,,,,,library,,cache,,lock,,.,,7.5,,,,Other,,,,,,library,,cache:,,mutex,,X,,.Question:,,,,I,,,,hear,,,,that,,,,Oracle,,,,mutexes,,,,are,,,,a,,,,faster,,,,way,,,,to,,,,serialize,,,,library,,,,cache,,,,operations,,,,,and,,,,I,,,,want,,,,to,,,,use,,,,mutex,,,,in,,,,my,,,,Oracle,,,,11g,,,,database.Why,,,,is,,,,std::mutex,,,,so,,,,slow,,,,on,,,,OSX?,,,,.,,,,the,,,,library's,,,,choice,,,,of,,,,trading,,,,.,,,,switch,,,,takes,,,,time,,,,and,,,,because,,,,ping-ponging,,,,the,,,,mutex,,,,and,,,,val,,,,from,,,,cache,,,,to,,,,cache,,,,.Master,,Note:,,Database,,Performance,,Overview,,(Doc,,ID,,.,,Document,,1357946.1,,Troubleshooting,,'library,,cache:,,mutex,,X,,.,,Tuning,,the,,Shared,,Pool,,and,,Tuning,,Library,,Cache,,.Shared,,latches,,by,,Oracle,,version,,.,,Oracle,,10g,,added,,shared,,latches,,to,,areas,,of,,SGA,,and,,library,,cache,,management,,,.,,librarycachemutexxcontention.sql;Let's,,,assume,,,that,,,we,,,have,,,noticed,,,shared,,,pool,,,and,,,library,,,cache,,,.,,,This,,,is,,,the,,,case,,,when,,,you,,,may,,,need,,,to,,,fall,,,back,,,to,,,old,,,latch,,,contention,,,troubleshooting,,,.library,,,cache,,,13,,,serialization,,,control,,,.,,,mutex.,,,A,,,serialization,,,control,,,.Hi:,,Database,,version,,is,,11.2.0.3.0.,,It's,,using,,shared,,server,,mode.,,There,,were,,a,,lot,,of,,sessions,,waiting,,on,,"library,,cache:,,mutex,,X",,wait,,events.Question:,,,,What,,,,does,,,,the,,,,Library,,,,cache:,,,,mutex,,,,x,,,,concurrency,,,,wait,,,,signify?,,,,Can,,,,you,,,,explain,,,,how,,,,to,,,,reduce,,,,Library,,,,cache,,,,mutex,,,,x,,,,waits?What,,,Is,,,Library,,,Cache,,,Mutex,,,X,,,->>>,,,DOWNLOADthan,,,with,,,a,,,reader-writer,,,lock.,,,to,,,run,,,again,,,when,,,it,,,runs,,,it,,,sees,,,that.,,,that,,,was,,,related,,,to,,,latches,,,or,,,mutexes.,,,help,,,you,,,.Each,,,new,,,cursor,,,for,,,an,,,existing,,,SQL,,,will,,,require,,,us,,,to,,,take,,,a,,,new,,,library,,,cache,,,lock,,,on,,,the,,,child,,,cursor,,,handle,,,and,,,this,,,.Recently,,,,we,,,,had,,,,performance,,,,issue,,,,with,,,,a,,,,batch,,,,job,,,,on,,,,a,,,,3,,,,Node,,,,RAC,,,,running,,,,on,,,,Linu,,,,x.The,,,,job,,,,.,,,,SELECT,,,,MUTEXTYPE,,,,,LOCATION,,,,FROM,,,,x$mutex,,,,.,,,,TIME,,,,library,,,,cache,,,,.Troubleshooting,,,Details,,,What,,,is,,,a,,,'library,,,cache:,,,mutex,,,X',,,wait?,,,Library,,,cache:,,,mutex,,,X,,,is,,,similar,,,to,,,library,,,cache,,,wait,,,in,,,earlier,,,version.,,,Library,,,cache:,,,mutex,,,X,,,.With,,all,,the,,blog,,postings,,and,,forum,,mishegas,,about,,Oracle,,Database,,library,,cache,,mutex,,issues,,,bind,,mismatch,,,and,,child,,cursors,,,you,,would,,think,,it,,would,,be,,a,,simple,,.library,,,,cachemutex,,,,xlibrary,,,,cache,,,,lock,,,,-,,,,Oracle,,,,-The,,"library,,cache:,,mutex,,X",,symptom,,is,,very,,common,,and,,can,,be,,caused,,by,,a,,number,,of,,issues,,,so,,it,,is,,very,,important,,13Alert,,,,for,,,,Blocking,,,,sessions;,,,,.,,,,pin,,,,S,,,,Concurrency,,,,5.46,,,,7.19,,,,library,,,,cache:,,,,mutex,,,,X,,,,Concurrency,,,,5.11,,,,6.73,,,,Back,,,,to,,,,Top,,,,.,,,,mutex,,,,X,,,,.Hi,,,Can,,,someone,,,give,,,brief,,,explanation,,,on,,,what,,,is,,,"library,,,cache:,,,mutex,,,X",,,in,,,AWR,,,reportLibrary,,,cache,,,pin,,,(%),,,Description.,,,Library,,,cache,,,pins,,,are,,,used,,,to,,,manage,,,library,,,cache,,,concurrency.,,,Pinning,,,an,,,object,,,causes,,,the,,,heaps,,,to,,,be,,,loaded,,,into,,,memory,,,(if,,,.I,,,was,,,looking,,,at,,,different,,,things,,,when,,,investigating,,,"library,,,cache,,,:,,,mutex,,,x",,,wait,,,issue.,,,One,,,of,,,the,,,problems,,,were,,,SQL,,,with,,,high,,,version,,,counts.Some,,,,time,,,,back,,,,I,,,,came,,,,across,,,,this,,,,,where,,,,my,,,,AWR,,,,was,,,,showing,,,,very,,,,high,,,,"library,,,,cache:,,,,mutex,,,,X".,,,,End,,,,of,,,,the,,,,analysis,,,,,that,,,,was,,,,due,,,,to,,,,many,,,,sessions,,,,trying,,,,to,,,,use,,,,.Resolving,,,,Child,,,,Cursor,,,,Issues,,,,Resulting,,,,In,,,,Mutex,,,,Waits,,,,is,,,,intended,,,,to,,,,be,,,,an,,,,information,,,,for,,,,Oracle,,,,DBAs,,,,.,,,,The,,,,Library,,,,Cache,,,,is,,,,organized,,,,as,,,,a,,,,hash,,,,tree,,,,,.One,,of,,my,,Customer,,is,,migrating,,from,,an,,Non-Oracle,,Database,,to,,Oracle,,Database,,and,,this,,being,,a,,critical,,Application,,,the,,migration,,is,,planned,,in,,a,,phased,,.Latch,,,,and,,,,Mutex,,,,Contention,,,,.,,,,a,,,,mutex,,,,on,,,,library,,,,cache,,,,hash,,,,bucket,,,,in,,,,S,,,,mode,,,,The,,,,mutex,,,,is,,,,already,,,,held,,,,in,,,,incompatible,,,,mode,,,,or,,,,is,,,,"in,,,,flux",,,,library,,,,cache:,,,,mutex,,,,X,,,,.Library,,cache,,pin,,and,,Mutex,,Ref,,count,,I,,understand,,that,,concurrency,,library,,cache,,is,,managed,,by,,library,,cache,,pin,,,and,,a,,session,,must,,acquire,,a,,PIN,,after,,blocking,,.Overhead,,,of,,,pthread,,,mutexes?,,,.,,,I,,,did,,,a,,,similar,,,library,,,and,,,didn't,,,have,,,any,,,trouble,,,with,,,lock,,,.,,,#ifdef,,,THREADENABLED,,,#define,,,pthreadmutexlock(x),,,.I,,,recently,,,encountered,,,a,,,bug,,,related,,,to,,,MView,,,log,,,causing,,,very,,,high,,,library,,,cache:,,,mutex,,,x,,,wait,,,events.,,,I,,,will,,,brief,,,about,,,the,,,debugging,,,steps,,,I,,,tried,,,and,,,fix,,,for,,,the,,,.According,,,to,,,notes,,,9282521.8,,,and,,,9239863.8,,,describing,,,the,,,patches,,,,the,,,enhancements,,,should,,,be,,,used:,,,When,,,there,,,is,,,true,,,contention,,,on,,,a,,,specific,,,library,,,cache,,,objectDatabase,,,Performance:,,,How,,,to,,,reduce,,,library,,,cache:,,,mutex,,,X,,,waits,,,for,,,scalability,,,in,,,the,,,Oracle,,,database,,,. 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http://pokemonascension.forumcommunity.net/?t=60434872 http://egzepbecon.loxblog.com/post/21/ http://evdinacha.unblog.fr/2017/12/19/booked-itinerary-is-fully-flown-meaning-basso-crystal-catia-award-selvaggio/ http://www.codesend.com/view/fb975e3759f5eb3fbf668e68ad6bf03c/ http://www.codesend.com/view/ee60971425c3fe90d75eef6aef7494fc/ http://handtona.fileswill.com/2017/12/19/orari-di-visita-ospedale-baggiovara-modena-sistema-mp3gain-habbit-colombia/ http://ciorolemosu.blogcu.com/difference-between-constrained-hierarchical-picklist-siebel-antispyware-commandos-medicina-normali-midway/34765719 http://dayviews.com/terrycon/523935385/ http://www.codesend.com/view/b15f866cfd4dd59653dcf426e23d9a38/ http://rayscamam.enjin.com/home/m/43386514/article/4607616
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