VM主题的文章列表，还有VM的技术要点_第1页

MVC和MVVM有什么区别？

「MVC」M-Model：模型，是应用程序中用于处理应用程序数据逻辑的部分，通常模型对象负责在数据库中存取数据V-View:视图，是应用程序中处理数据显示的部分，通常视图是依据模型数据创建的。C-Controller:控制器,是应用程序中处理用户交互的部分，通常控制器负责从视图读取数据，控制用户输入，并向模型发送数据。...

开发笔记 ·2024-10-10

docker redis警告处理 WARNING Memory overcommit must be enabled; vm.overcommit_memory = 1

提示信息WARNINGMemoryovercommitmustbeenabled!Withoutit,abackgroundsaveorreplicationmayfailunderlowmemorycondition.Beingdisabled,itcanalsocausefailureswithoutlowmemo...

开发笔记 ·2024-07-09

ORA-27139: unable to reserve Oracle VM mapping in process address space

文档解释ORA-27139:unabletoreserveOracleVMmappinginprocessaddressspaceCause:Theaddressspaceregionwasalreadymapped.Action:ContactOracleSupportServices.官方解释常见案例一般处理方法及...

IT技术学习 ·2023-07-26

ORA-07844: sllfop: LIB$GET_VM failure

文档解释ORA-07844:sllfop:LIB$GET_VMfailureCause:AnerrorwasreturnedfromLIB$GET_VMwhileattemptingtoallocatememoryfordataandindexbuffersAction:Checksystemerrorandrefer...

IT技术学习 ·2023-07-26

ORA-07845: sllfcl: LIB$FREE_VM failue

文档解释ORA-07845:sllfcl:LIB$FREE_VMfailueCause:AnerrorwasreturnedfromLIB$FREE_VMwhileattemptingtofreememoryusedbydataandindexbuffersAction:Checksystemerrorandrefer...

IT技术学习 ·2023-07-25

ORA-15494: compatible.advm must be string or higher

文档解释ORA-15494:compatible.advmmustbestringorhigherCause:AnattemptwasmadetosettheADVMcompatibilitytoaversionthatwaslowerthantheminimumsupported.Action:SetADVMcomp...

IT技术学习 ·2023-07-23

ORA-09856: smpalo: vm_allocate error while allocating pga.

文档解释ORA-09856:smpalo:vm_allocateerrorwhileallocatingpga.Cause:Thevm_allocatesystemcallreturnedanerror.Action:Checkreturnederror.Possiblyoutofsystemresources.ORA...

IT技术学习 ·2023-07-19

ORA-09857: smprset: vm_protect error while protecting pga.

文档解释ORA-09857:smprset:vm_protecterrorwhileprotectingpga.Cause:Thevm_protectsystemcallreturnedanerror.Action:Internalerror.ContactOraclesupport.ORA-09857:smprset...

IT技术学习 ·2023-07-18

ORA-09745: smscre: vm_allocate error, unable to create shared memory.

文档解释ORA-09745:smscre:vm_allocateerror,unabletocreatesharedmemory.Cause:Errorinsystemcallvm_allocate.FailedtocreateSGAasasinglesharedmemorysegment.Action:Checkre...

IT技术学习 ·2023-07-16

ORA-53410: The attribute string does not conform to the VM rule.

文档解释ORA-53410:TheattributestringdoesnotconformtotheVMrule.Cause:TheDICOMobjecteithercontainedanattributethatdidnotconformtotheDICOMvaluemultiplicityruleorwasmis...

IT技术学习 ·2023-07-10

ORA-15495: ASM operation requires compatible.advm of string or higher

文档解释ORA-15495:ASMoperationrequirescompatible.advmofstringorhigherCause:TheASMoperationspecifiedrequiredahigherdiskgroupattributevalueforcompatible.advm.Action:S...

IT技术学习 ·2023-07-09

ORA-07840: sllfop: LIB$GET_VM failure

文档解释ORA-07840:sllfop:LIB$GET_VMfailureCause:AnerrorwasreturnedfromLIB$GET_VMwhileattemptingtoallocatememoryforani/ovector.Action:ChecksystemerrorandrefertoVMSdo...

IT技术学习 ·2023-07-08

ORA-07843: sllfcl: LIB$FREE_VM failure

文档解释ORA-07843:sllfcl:LIB$FREE_VMfailureCause:AnerrorwasreturnedfromLIB$FREE_VMwhileattemptingtofreethememoryforthei/ovectorAction:ChecksystemerrorandrefertoVMSd...

IT技术学习 ·2023-07-08

ORA-07475: slsget: cannot get vm statistics.

文档解释ORA-07475:slsget:cannotgetvmstatistics.Cause:Thevm_statisticssystemcallfailedtogetvirtualmemorystatistics.Action:Checkresultcodeinsercerrno.Possibleoperatin...

IT技术学习 ·2023-07-08

LVM学习之基本概念

LVM的定义LVM是LogicalVolumeManager缩写，即逻辑卷管理器，Linux平台使用它来进行磁盘分区的管理。它的突出的优势是可以在不停机的情况下动态的调整分区的大小。LVM的相关术语LVM中出现了物理卷（PhysicalVolume）、卷组（VolumeGroup）、逻辑卷（LogicalVolume）...

开发笔记 ·2023-04-15