Oracle常用dump命令

导读:
  Oracle常用dump命令,记录一下备查
  一.Memory Dumps
  1).Global Area
  ALTER SESSION SET EVENTS 'immediate trace name global_area level n';
  1 包含PGA
  2 包含SGA
  4 包含UGA
  8 包含indrect memory
  2).Library Cache
  ALTER SESSION SET EVENTS 'immediate trace name library_cache level n';
  1 library cache统计信息
  2 包含hash table histogram
  3 包含object handle
  4 包含object结构(Heap 0)
  3).Row Cache
  ALTER SESSION SET EVENTS 'immediate trace name row_cache level n';
  1 row cache统计信息
  2 包含hash table histogram
  8 包含object结构
  4).Buffers
  ALTER SESSION SET EVENTS 'immediate trace name buffers level n';
  1 buffer header
  2 level 1 + block header
  3 level 2 + block contents
  4 level 1 + hash chain
  5 level 2 + hash chain
  6 level 3 + hash chain
  8 level 4 + users/waiters
  9 level 5 + users/waiters
  10 level 6 + users/waiters
  5).Buffer
  ALTER SESSION SET EVENTS 'immediate trace name buffer level n';
  n为某个指定block的rdba,该命令可以转储某个block在buffer中的所有版本。
  6).Heap
  ALTER SESSION SET EVENTS 'immediate trace name heapdump level level';
  1 PGA摘要
  2 SGA摘要
  4 UGA摘要
  8 Current call(CGA)摘要
  16 User call(CGA)摘要
  32 Large call(LGA)摘要
  1025 PGA内容
  2050 SGA内容
  4100 UGA内容
  8200 Current call内容
  16400 User call内容
  32800 Large call内容
  7).Sub Heap
  Oracle 9.0.1版本之前
  ALTER SESSION SET EVENTS 'immediate trace name heapdump_addr level n';
  若n为subheap的地址,转储的是subheap的摘要信息
  若n为subheap的地址+1,转储的则是subheap的内容
  Oracle 9.2.0版本之后
  ALTER SESSION SET EVENTS 'immediate trace name heapdump_addr level n, addr m';
  其中m为subheap的地址
  n为1转储subheap的摘要,n为2转储subheap的内容
  8).Process State
  ALTER SESSION SET EVENTS 'immediate trace name processstate level n';
  9).System State
  ALTER SESSION SET EVENTS 'immediate trace name systemstate level n';
  10).Error State
  ALTER SESSION SET EVENTS 'immediate trace name errorstack level n';
  0 Error stack
  1 level 0 + function call stack
  2 level 1 + process state
  3 level 2 + context area
  11).Hang Analysis
  ALTER SESSION SET EVENTS 'immediate trace name hanganalyze level n';
  12).Work Area
  ALTER SESSION SET EVENTS 'immediate trace name workareatab_dump level n';
  1 SGA信息
  2 Workarea Table摘要信息
  3 Workarea Table详细信息
  13).Latches
  ALTER SESSION SET EVENTS 'immediate trace name latches level n';
  1 latch信息
  2 统计信息
  14).Events
  ALTER SESSION SET EVENTS 'immediate trace name events level n';
  1 session
  2 process
  3 system
  15).Locks
  ALTER SESSION SET EVENTS 'immediate trace name locks level n';
  16).Shared Server Process
  ALTER SESSION SET EVENTS 'immediate trace name shared_server_state level n';
  n取值为1~14
  17).Background Messages
  ALTER SESSION SET EVENTS 'immediate trace name bg_messages level n';
  n为pid+1
  二.File Dumps
  1).Block
  Oracle 7之前
  ALTER SESSION SET EVENTS 'immediate trace name blockdump level n';
  n为block的rdba
  Oracle8以后
  ALTER SYSTEM DUMP DATAFILE file# BLOCK block#;
  ALTER SYSTEM DUMP DATAFILE file#
  BLOCK MIN minimum_block#
  BLOCK MAX maximum_block#;
  2).Tree Dump
  ALTER SESSION SET EVENTS 'immediate trace name treedump level n';
  n为object_id
  3).Undo Segment Header
  ALTER SYSTEM DUMP UNDO_HEADER 'segment_name';
  4).Undo for a Transaction
  ALTER SYSTEM DUMP UNDO BLOCK 'segment_name' XID xidusn xidslot xidsqn;
  5).File Header
  ALTER SESSION SET EVENTS 'immediate trace name file_hdrs level n';
  1 控制文件中的文件头信息
  2 level 1 + 文件头信息
  3 level 2 + 数据文件头信息
  10 level 3
  6).Control file
  ALTER SESSION SET EVENTS 'immediate trace name controlf level n';
  1 文件头信息
  2 level 1 + 数据库信息 + 检查点信息
  3 level 2 + 可重用节信息
  10 level 3
  7).Redo log Header
  ALTER SESSION SET EVENTS 'immediate trace name redohdr level n';
  1 控制文件中的redo log信息
  2 level 1 + 文件头信息
  3 level 2 + 日志文件头信息
  10 level 3
  8).Redo log
  ALTER SYSTEM DUMP LOGFILE 'FileName';
  ALTER SYSTEM DUMP LOGFILE 'FileName'
  SCN MIN MinimumSCN
  SCN MAX MaximumSCN
  TIME MIN MinimumTime
  TIME MAX MaximumTime
  LAYER Layer
  OPCODE Opcode
  DBA MIN FileNumber . BlockNumber
  DBA MAX FileNumber . BlockNumber
  RBA MIN LogFileSequenceNumber . BlockNumber
  RBA MAX LogFileSequenceNumber . BlockNumber;
  其中time = (((((yyyy - 1988)) * 12 + mm - 1) * 31 + dd - 1) * 24 + hh) * 60 + mi) * 60 + ss;
  9).Loghist
  ALTER SESSION SET EVENTS 'immediate trace name loghist level n';
  1 dump控制文件中最早和最迟的日志历史项
  >1 dump 2^n个日志历史项

本文转自
http://woodnan.itpub.net/post/37055/457770

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