Oracle TimesTen 18.1.2.1 · • Linux x64 –11.2.0.4.0 and 12.1.0.2.0 ... 18.1.2 Classic New...

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OracleTimesTen18.1.2.1.0Patchset Update

TimesTen ProductManagement


18.1.2patchset releaseschedule,contents,platforms

18.1.2.1.0isapatchset releaseContents

• First18.1releasewithsupportforTimesTen ClassicandCache• BugfixesandminorenhancementsforScaleout

Platforms• Server

• Linuxx86-64(Scaleout andClassic)andAIX(Classic)• Clientonly

• Windowsx64andmacOS• Clientswillshipsometimeafter theinitial18.1.2.1.0patchset

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18.1.2patchset releaseschedule,contents,platforms(cont)

OSversionssupported• OracleLinux6and7• RedHatEnterpriseLinux6and7• SUSEEnterpriseServer12• AIX7.1TL3andTL4• WindowsServer2012and2016• Windows8.1and10• macOS– TBCbutshouldbe10.12,10.13and10.14

Javaversionssupported• OracleJDK8,9and10• OpenJDK8,9and10(Linuxonly)

Clusterwareversionssupported• Linuxx64– 11.2.0.4.0and12.1.0.2.0• AIX64– 11.2.0.4.0and12.1.0.2.0

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18.1.2Classicchangesvs.11.2.2

• B+-Treeindexesarenowthedefaultforrangeindexes• MoreconcurrentandscalablethanT-Trees

• Aggregatefunctionreturntypechanges(TT_BIGINT)• Systemviews(V$andGV$)• Increasedupperlimitonnumberofconnections

• 11.2.2• Maxis2,000• Default determinedbyOSsemaphoreconfiguration

• 18.1• Maxis32,000• Default isthelesser of2,000andOSsemaphoreconfiguration

• IPv6supportisenabledbydefault

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Changes


18.1.2Classicchangesvs.11.2.2

• Severaldefaultshavechanged:• Preallocate=1– checkpointfilespacealwayspre-allocated• LogFileSize=LogBufMB• CkptFrequency=0– timeintervalbasedcheckpointingisdisabledbydefault• CkptLogVolume=LogBufMB – logvolumebasedcheckpointingisenabledbydefauklt• CommitBufferSizeMax=10MB

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Changes


18.1.2ClassicNewFeatures

• Improvedmemorymanagementforindexes• Eachindexhasitsownheap• FasterDROPINDEX• Fasterrecovery

• AutomaticallydetectandusehugepagesonLinuxandAIX• ttBulkCp enhancements

• -directLoad• Avoidsundologgingandformattingoverheads• Can’tbeusedontablesthathaveindexesorconstraints

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• SupportforODBC3.5API• ODBC2.5stillsupportedandstillthedefault

• SupportformanyJDBC4.1features• Oracledatabasecompatiblebitmanipulationfunctions

• BITAND(),BITOR(),BITXOR,BITNOT()• Optimiser cannowgatheradditionalintervalstatistics

• NewoptiontottOptUpdateStats()toenable• ttOptUpdateStats([‘tablename’],[invalidate],[intervalstats]);

• NULLor0->collectfullintervalsstatsforcolumnsthatarepartofrangeindexesandsingleintervalstatsotherwise(default)

• 1->onlycollectsingleintervalstats(asper11.2.2)• Connectionleveloptimizerhints

• SpecifieshintstobeappliedtoallSQLfromthisconnection• Connectionattribute- OptimizerHint

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• ttLoadFromOracle()improvements• Improvederrormessages• Optiontostopaftern errorsnotjustafterthefirsterror• Optiontoignorealluniquenesserrors

• Enablesrestartofafailed/partialload• ReturnsOracleSCNofload

• CanspecifytheSCNinordertorestartloadfromthatSCN• Enablesrestartofapartialload

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• Supportforreplicated READONLYAUTOREFRESHCacheGroupswhentheOracleDatabaseusesActive DataGuard withasynchronous transport• IfthestandbyOracleDatabaseispromotedtoactive,TimesTencacherefreshwillautomatically

switchtothenewactive• TimesTen replicationwillonlyreplicateOracletransactionsthatarepresentonboththeOracle

activeandOraclestandby• NodatalossorcacheinconsistencyafteraDataGuard failover

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18.1.2ClassicNewFeatures• Forceddisconnect

• Theinstanceadministratorcansafely forciblydisconnectapplicationconnections• Nomoreneedtokillprocesses(risky!)• NeedsForceDisconnectEnabled=1 tobespecifiedintheDSNattributes.

ttAdmin –disconnect urgency [granularity] { DSN | -connStr connstr }

urgency -transactional – Disconnectconnectionsaftertheycommitorrollback.-immediate – Rollbackanyopentransactionsanddisconnect.-abort – Abortalldirectmodeprocessesandservers!

granularity -unload – Disconnectsallconnectionsincludingthesub-daemon.Allowsforacleanunloadofthedatabase.

-users – Disconnectsonlyuserconnections– thedefault

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18.1.2ClassicDeprecatedFeatures

• BitmapIndexes• Userdefined parallelreplication• AsynchronousMaterializedViews• TT_DECIMALdatatype• LegacyfeaturesnotcompatiblewithOracleDatabase

• DDLCommitBehaviour=1• DuplicateBindMode=1• PLSQL=0• TypeMode=1• TheTIMESTEN8‘characterset’

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Don’tstartusingthese,plantostopusingthemASAP


18.1.2ClassicRemovedFeatures• CacheGrid• CacheAdvisor

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18.1.2Scaleout NewFeatures• Forceddisconnect

• Theinstanceadministratorcansafelyforciblydisconnectapplicationconnections• Nomoreneedtokillprocesses(risky)• Alwaysenabled,cannotbedisabled.• Databasemustbe‘closed’beforeyoucanusethis.

ttGridAdmin dbDisconnect dbname–transactional|-immediate|-abort [-nowait | -wait timeout]

-transactional – Disconnectconnectionsaftertheycommitorrollback.-immediate – Rollbackanyopentransactionsanddisconnect.-abort – Abortalldirectmodeprocessesandservers!

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18.1.2Scaleout NewFeatures

• ExtraoptionsforttGridAdmin dbStatus (introducedin18.1.1.4.0Ibelieve)-epochs – Showinformationonepochsforallelements.-connections – Displaysinformationonapplicationconnectionstothedatabase..-system – Includessystemconnectionsinthedisplay.-proxy – Includesproxyconnectionsinthedisplay.

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Oracle TimesTen 18.1.2.1 · • Linux x64 –11.2.0.4.0 and 12.1.0.2.0 ... 18.1.2 Classic New...

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