我们最近将软件从Hibernate 3迁移到了Hibernate5。在运行冗长的操作后，SQL Server 2014数据库日志文件会迅速增长，直到磁盘空间用尽。该过程在一个操作中从数据库中读取了3200条记录，然后遍历这些记录并读取了另一条记录，然后使用这两套记录来创建两条新记录-因此有6400条记录。在使用Hibernate 3的版本上执行此操作完全不会影响日志文件 的大小，但是在使用Hibernate 5时会（不会使用相同的VM来运行它们）。在旧版本上，此操作通常需要大约5分钟才能运行。在新版本上，大约需要15秒钟，然后失败。
这是Hibernate 3日志的一小部分：-
02-Jul-2018 15:51:52,756 DEBUG - SQL - select this_.ID as ID33_0_, this_.Content as Content33_0_ from tbl_edoc_content this_ where this_.ID=?
02-Jul-2018 15:51:52,756 DEBUG - AbstractBatcher - about to open ResultSet (open ResultSets: 0, globally: 0)
02-Jul-2018 15:51:52,756 DEBUG - Loader - result row: EntityKey[uk.co.stasys.edoc.sectioning.Content#1]
02-Jul-2018 15:51:52,756 DEBUG - AbstractBatcher - about to close ResultSet (open ResultSets: 1, globally: 1)
02-Jul-2018 15:51:52,756 DEBUG - AbstractBatcher - about to close PreparedStatement (open PreparedStatements: 1, globally: 1)
02-Jul-2018 15:51:52,756 DEBUG - TwoPhaseLoad - resolving associations for [uk.co.stasys.edoc.sectioning.Content#1]
02-Jul-2018 15:51:52,756 DEBUG - TwoPhaseLoad - done materializing entity [uk.co.stasys.edoc.sectioning.Content#1]
02-Jul-2018 15:51:52,756 DEBUG - StatefulPersistenceContext - initializing non-lazy collections
02-Jul-2018 15:51:52,788 DEBUG - AbstractSaveEventListener - executing identity-insert immediately
02-Jul-2018 15:51:52,788 DEBUG - AbstractBatcher - about to open PreparedStatement (open PreparedStatements: 0, globally: 0)
02-Jul-2018 15:51:52,788 DEBUG - SQL - insert into tbl_edoc_content (Content) values (?)
02-Jul-2018 15:51:52,788 DEBUG - IdentifierGeneratorHelper - Natively generated identity: 29
02-Jul-2018 15:51:52,788 DEBUG - AbstractBatcher - about to close PreparedStatement (open PreparedStatements: 1, globally: 1)
02-Jul-2018 15:51:52,788 DEBUG - AbstractSaveEventListener - executing identity-insert immediately
02-Jul-2018 15:51:52,788 DEBUG - AbstractBatcher - about to open PreparedStatement (open PreparedStatements: 0, globally: 0)
02-Jul-2018 15:51:52,788 DEBUG - SQL - insert into tbl_edoc_section (DocumentID, Type, Depth, SectionNumber, Title, NextID, PreviousID, ContentID, Tag, unnumbered, indentDepth, BulletStyle, classification, userNumbered) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
02-Jul-2018 15:51:52,788 DEBUG - IdentifierGeneratorHelper - Natively generated identity: 26
02-Jul-2018 15:51:52,788 DEBUG - AbstractBatcher - about to close PreparedStatement (open PreparedStatements: 1, globally: 1)
02-Jul-2018 15:51:52,803 DEBUG - AbstractFlushingEventListener - processing flush-time cascades
02-Jul-2018 15:51:52,803 DEBUG - AbstractFlushingEventListener - dirty checking collections
02-Jul-2018 15:51:52,803 DEBUG - AbstractFlushingEventListener - Flushed: 0 insertions, 1 updates, 0 deletions to 20 objects
02-Jul-2018 15:51:52,803 DEBUG - AbstractFlushingEventListener - Flushed: 0 (re)creations, 0 updates, 0 removals to 0 collections
02-Jul-2018 15:51:52,803 DEBUG - Printer - listing entities:
这与Hibernate 5的日志相同：-
02-Jul-2018 18:31:20,021 DEBUG - SQL - select content0_.ID as ID1_92_, content0_.Content as Content2_92_ from tbl_edoc_content content0_ where content0_.ID=1
02-Jul-2018 18:31:20,021 DEBUG - Loader - Result set row: 0
02-Jul-2018 18:31:20,021 DEBUG - Loader - Result row: EntityKey[uk.co.stasys.edoc.sectioning.Content#1]
02-Jul-2018 18:31:20,021 DEBUG - TwoPhaseLoad - Resolving associations for [uk.co.stasys.edoc.sectioning.Content#1]
02-Jul-2018 18:31:20,021 DEBUG - TwoPhaseLoad - Done materializing entity [uk.co.stasys.edoc.sectioning.Content#1]
02-Jul-2018 18:31:20,021 DEBUG - ActionQueue - Executing identity-insert immediately
02-Jul-2018 18:31:20,021 DEBUG - SQL - insert into tbl_edoc_content (Content) values (?)
02-Jul-2018 18:31:20,037 DEBUG - IdentifierGeneratorHelper - Natively generated identity: 29
02-Jul-2018 18:31:20,037 DEBUG - ResourceRegistryStandardImpl - HHH000387: ResultSet's statement was not registered
02-Jul-2018 18:31:20,037 DEBUG - ActionQueue - Executing identity-insert immediately
02-Jul-2018 18:31:20,037 DEBUG - SQL - insert into tbl_edoc_section (DocumentID, Type, Depth, SectionNumber, Title, NextID, PreviousID, ContentID, Tag, unnumbered, indentDepth, BulletStyle, classification, userNumbered) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
02-Jul-2018 18:31:20,053 DEBUG - IdentifierGeneratorHelper - Natively generated identity: 26
02-Jul-2018 18:31:20,053 DEBUG - ResourceRegistryStandardImpl - HHH000387: ResultSet's statement was not registered
02-Jul-2018 18:31:20,053 DEBUG - CriteriaQueryImpl - Rendered criteria query -> select generatedAlias0 from Note as generatedAlias0 where ( generatedAlias0.documentId=3 ) and ( generatedAlias0.sectionId=1 ) order by generatedAlias0.position asc
02-Jul-2018 18:31:20,053 DEBUG - QueryTranslatorImpl - parse() - HQL: select generatedAlias0 from uk.co.stasys.edoc.comm.notes.Note as generatedAlias0 where ( generatedAlias0.documentId=3 ) and ( generatedAlias0.sectionId=1 ) order by generatedAlias0.position asc
02-Jul-2018 18:31:20,053 DEBUG - ErrorCounter - throwQueryException() : no errors
02-Jul-2018 18:31:20,053 DEBUG - QueryTranslatorImpl - --- HQL AST ---
\-[QUERY] Node: 'query'
+-[SELECT_FROM] Node: 'SELECT_FROM'
| +-[FROM] Node: 'from'
| | \-[RANGE] Node: 'RANGE'
| | +-[DOT] Node: '.'
| | | +-[DOT] Node: '.'
| | | | +-[DOT] Node: '.'
| | | | | +-[DOT] Node: '.'
| | | | | | +-[DOT] Node: '.'
| | | | | | | +-[DOT] Node: '.'
| | | | | | | | +-[IDENT] Node: 'uk'
| | | | | | | | \-[IDENT] Node: 'co'
| | | | | | | \-[IDENT] Node: 'stasys'
| | | | | | \-[IDENT] Node: 'edoc'
| | | | | \-[IDENT] Node: 'comm'
| | | | \-[IDENT] Node: 'notes'
| | | \-[IDENT] Node: 'Note'
| | \-[ALIAS] Node: 'generatedAlias0'
| \-[SELECT] Node: 'select'
| \-[IDENT] Node: 'generatedAlias0'
+-[WHERE] Node: 'where'
| \-[AND] Node: 'and'
| +-[EQ] Node: '='
| | +-[DOT] Node: '.'
| | | +-[IDENT] Node: 'generatedAlias0'
| | | \-[IDENT] Node: 'documentId'
| | \-[NUM_INT] Node: '3'
| \-[EQ] Node: '='
| +-[DOT] Node: '.'
| | +-[IDENT] Node: 'generatedAlias0'
| | \-[IDENT] Node: 'sectionId'
| \-[NUM_INT] Node: '1'
\-[ORDER] Node: 'order'
+-[DOT] Node: '.'
| +-[IDENT] Node: 'generatedAlias0'
| \-[IDENT] Node: 'position'
\-[ASCENDING] Node: 'asc'
02-Jul-2018 18:31:20,053 DEBUG - HqlSqlBaseWalker - select << begin [level=1, statement=select]
02-Jul-2018 18:31:20,053 DEBUG - FromElement - FromClause{level=1} : uk.co.stasys.edoc.comm.notes.Note (generatedAlias0) -> note0_
02-Jul-2018 18:31:20,053 DEBUG - FromReferenceNode - Resolved : generatedAlias0 -> note0_.NoteId
02-Jul-2018 18:31:20,053 DEBUG - FromReferenceNode - Resolved : generatedAlias0 -> note0_.NoteId
02-Jul-2018 18:31:20,053 DEBUG - DotNode - getDataType() : documentId -> org.hibernate.type.IntegerType@27cf3151
02-Jul-2018 18:31:20,053 DEBUG - FromReferenceNode - Resolved : generatedAlias0.documentId -> note0_.DocumentId
02-Jul-2018 18:31:20,053 DEBUG - FromReferenceNode - Resolved : generatedAlias0 -> note0_.NoteId
02-Jul-2018 18:31:20,053 DEBUG - DotNode - getDataType() : sectionId -> org.hibernate.type.IntegerType@27cf3151
02-Jul-2018 18:31:20,053 DEBUG - FromReferenceNode - Resolved : generatedAlias0.sectionId -> note0_.SectionId
02-Jul-2018 18:31:20,053 DEBUG - FromReferenceNode - Resolved : generatedAlias0 -> note0_.NoteId
02-Jul-2018 18:31:20,053 DEBUG - DotNode - getDataType() : position -> org.hibernate.type.IntegerType@27cf3151
02-Jul-2018 18:31:20,053 DEBUG - FromReferenceNode - Resolved : generatedAlias0.position -> note0_.Pos
02-Jul-2018 18:31:20,053 DEBUG - HqlSqlBaseWalker - select : finishing up [level=1, statement=select]
02-Jul-2018 18:31:20,053 DEBUG - HqlSqlWalker - processQuery() : ( SELECT ( {select clause} note0_.NoteId ) ( FromClause{level=1} tbl_edoc_notes note0_ ) ( where ( and ( = ( note0_.DocumentId note0_.NoteId documentId ) 3 ) ( = ( note0_.SectionId note0_.NoteId sectionId ) 1 ) ) ) ( order ( note0_.Pos note0_.NoteId position ) asc ) )
02-Jul-2018 18:31:20,053 DEBUG - JoinProcessor - Using FROM fragment [tbl_edoc_notes note0_]
02-Jul-2018 18:31:20,053 DEBUG - HqlSqlBaseWalker - select >> end [level=1, statement=select]
02-Jul-2018 18:31:20,053 DEBUG - QueryTranslatorImpl - --- SQL AST ---
\-[SELECT] QueryNode: 'SELECT' querySpaces (tbl_edoc_notes)
+-[SELECT_CLAUSE] SelectClause: '{select clause}'
| +-[ALIAS_REF] IdentNode: 'note0_.NoteId as NoteId1_110_' {alias=generatedAlias0, className=uk.co.stasys.edoc.comm.notes.Note, tableAlias=note0_}
| \-[SQL_TOKEN] SqlFragment: 'note0_.Version as Version2_110_, note0_.DocumentId as Document3_110_, note0_.SectionId as SectionI4_110_, note0_.Pos as Pos5_110_, note0_.Deleted as Deleted6_110_, note0_.Content as Content7_110_'
+-[FROM] FromClause: 'from' FromClause{level=1, fromElementCounter=1, fromElements=1, fromElementByClassAlias=[generatedAlias0], fromElementByTableAlias=[note0_], fromElementsByPath=[], collectionJoinFromElementsByPath=[], impliedElements=[]}
| \-[FROM_FRAGMENT] FromElement: 'tbl_edoc_notes note0_' FromElement{explicit,not a collection join,not a fetch join,fetch non-lazy properties,classAlias=generatedAlias0,role=null,tableName=tbl_edoc_notes,tableAlias=note0_,origin=null,columns={,className=uk.co.stasys.edoc.comm.notes.Note}}
+-[WHERE] SqlNode: 'where'
| \-[AND] SqlNode: 'and'
| +-[EQ] BinaryLogicOperatorNode: '='
| | +-[DOT] DotNode: 'note0_.DocumentId' {propertyName=documentId,dereferenceType=PRIMITIVE,getPropertyPath=documentId,path=generatedAlias0.documentId,tableAlias=note0_,className=uk.co.stasys.edoc.comm.notes.Note,classAlias=generatedAlias0}
| | | +-[ALIAS_REF] IdentNode: 'note0_.NoteId' {alias=generatedAlias0, className=uk.co.stasys.edoc.comm.notes.Note, tableAlias=note0_}
| | | \-[IDENT] IdentNode: 'documentId' {originalText=documentId}
| | \-[NUM_INT] LiteralNode: '3'
| \-[EQ] BinaryLogicOperatorNode: '='
| +-[DOT] DotNode: 'note0_.SectionId' {propertyName=sectionId,dereferenceType=PRIMITIVE,getPropertyPath=sectionId,path=generatedAlias0.sectionId,tableAlias=note0_,className=uk.co.stasys.edoc.comm.notes.Note,classAlias=generatedAlias0}
| | +-[ALIAS_REF] IdentNode: 'note0_.NoteId' {alias=generatedAlias0, className=uk.co.stasys.edoc.comm.notes.Note, tableAlias=note0_}
| | \-[IDENT] IdentNode: 'sectionId' {originalText=sectionId}
| \-[NUM_INT] LiteralNode: '1'
\-[ORDER] OrderByClause: 'order'
+-[DOT] DotNode: 'note0_.Pos' {propertyName=position,dereferenceType=PRIMITIVE,getPropertyPath=position,path=generatedAlias0.position,tableAlias=note0_,className=uk.co.stasys.edoc.comm.notes.Note,classAlias=generatedAlias0}
| +-[ALIAS_REF] IdentNode: 'note0_.NoteId' {alias=generatedAlias0, className=uk.co.stasys.edoc.comm.notes.Note, tableAlias=note0_}
| \-[IDENT] IdentNode: 'position' {originalText=position}
\-[ASCENDING] SqlNode: 'asc'
02-Jul-2018 18:31:20,053 DEBUG - ErrorCounter - throwQueryException() : no errors
02-Jul-2018 18:31:20,053 DEBUG - QueryTranslatorImpl - HQL: select generatedAlias0 from uk.co.stasys.edoc.comm.notes.Note as generatedAlias0 where ( generatedAlias0.documentId=3 ) and ( generatedAlias0.sectionId=1 ) order by generatedAlias0.position asc
02-Jul-2018 18:31:20,053 DEBUG - QueryTranslatorImpl - SQL: select note0_.NoteId as NoteId1_110_, note0_.Version as Version2_110_, note0_.DocumentId as Document3_110_, note0_.SectionId as SectionI4_110_, note0_.Pos as Pos5_110_, note0_.Deleted as Deleted6_110_, note0_.Content as Content7_110_ from tbl_edoc_notes note0_ where note0_.DocumentId=3 and note0_.SectionId=1 order by note0_.Pos asc
02-Jul-2018 18:31:20,053 DEBUG - ErrorCounter - throwQueryException() : no errors
02-Jul-2018 18:31:20,053 DEBUG - AbstractFlushingEventListener - Processing flush-time cascades
02-Jul-2018 18:31:20,053 DEBUG - AbstractFlushingEventListener - Dirty checking collections
02-Jul-2018 18:31:20,053 DEBUG - AbstractFlushingEventListener - Flushed: 0 insertions, 3 updates, 0 deletions to 20 objects
02-Jul-2018 18:31:20,053 DEBUG - AbstractFlushingEventListener - Flushed: 0 (re)creations, 0 updates, 0 removals to 0 collections
02-Jul-2018 18:31:20,053 DEBUG - EntityPrinter - Listing entities:
我不知道我需要寻找什么差异。