oradebug

Oracle ORADEBUG

Version 11.1

GENERAL Background Processes List SELECT b.name, p.pid FROM gv$bgprocess b, gv$process p WHERE b.paddr = p.addr ORDER BY 1; Dispatcher Processes List SELECT d.name, p.pid FROM gv$dispatcher d, gv$process p WHERE d.paddr = p.addr; Job Queue Process List SELECT s.paddr, s.sid, j.job FROM gv$session s, dba_jobs_running j WHERE s.sid = j.sid; SELECT pid FROM gv$process WHERE addr = '17'; Parallel Execution Slave  Processes List SELECT pid, server_name, status FROM gv$px_process; Shared Server Processes List SELECT s.name, p.pid FROM gv$shared_server s, gv$process p WHERE s.paddr = p.addr; SGA Variables List SELECT ksmfsnam FROM x$ksmfsv WHERE ksmfsnam LIKE '%\_' ESCAPE '\'; Switches Switch Format Description -G Parallel oradebug command prefix -R Parallel oradebug prefix return output   CALL Invoke function with arguments oradebug call [arg1] ... [argn] SQL> oradebug call ?   CLOSE_TRACE Close trace file oradebug close_trace SQL> oradebug close_trace   CORE Dump core without crashing process oradebug core SQL> oradebug core   CURRENT_SQL Get current SQL oradebug current_sql SYS UWCLASS conn / as sysdba conn uwclass/uwclass GRANT execute ON dbms_support TO uwclass;     SELECT pid FROM gv$process WHERE addr = (   SELECT paddr   FROM gv$session   WHERE sid =    sys.dbms_support.mysid); oradebug setorapid 26     SELECT t.tablespace_name FROM all_tables t, all_indexes i WHERE t.tablespace_name = i.tablespace_name; oradebug core     DELETE Delete a watchpoint oradebug delete watchpoint SQL> oradebug delete ?   DIRECT_ACCESS Fixed table access oradebug direct_access TBD   DMPCOWSGA Dump & map SGA as COW oradebug dmpcowsga SQL> oradebug dmpcowsga "c: emp"   DUMP Invoke named dump oradebug dump [addr] -- dump_name values can be obtained from oradebug dumplist SQL> oradebug setmypid SQL> oradebug dump library_cache 4 Invoke ASH dump SQL> oradebug setmypid SQL> oradebug dump ashdump 10   DUMPLIST Print a list of available dumps oradebug dumplist SQL> oradebug dumplist   Available Dumps ADJUST_SCN HANGDIAG_HEADER MMAN_ALLOC_MEMORY ALRT_TEST HEAPDUMP MMAN_CREATE_DEF_REQUEST ARCHIVE_ERROR HEAPDUMP_ADDR MMAN_CREATE_IMM_REQUEST ASHDUMP HM_FW_TRACE MMAN_IMM_REQUEST ATSK_TEST INSTANTIATIONSTATE MMON_TEST AWR_FLUSH_TABLE_OFF IOERREMUL MODIFIED_PARAMETERS AWR_FLUSH_TABLE_ON IOERREMULRNG NEXT_SCN_WRAP AWR_TEST IR_FW_TRACE OBJECT_CACHE BC_SANITY_CHECK JAVAINFO OCR BG_MESSAGES KCBO_OBJ_CHECK_DUMP OLAP_DUMP BLK0_FMTCHG KDLIDMP OPEN_FILES BUFFER KRA_OPTIONS PGA_DETAIL_CANCEL BUFFERS KRA_TRACE PGA_DETAIL_DUMP CALLSTACK KRB_BSET_DAYS PGA_DETAIL_GET CHECK_ROREUSE_SANITY KRB_CORRUPT_INTERVAL PIN_BLOCKS CONTEXTAREA KRB_CORRUPT_REPEAT PIN_RANDOM_BLOCKS CONTROLF KRB_CORRUPT_SIZE POKE_ADDRESS CROSSIC KRB_CORRUPT_SPBAD_INTERVAL POKE_LENGTH CRS KRB_CORRUPT_SPBAD_REPEAT POKE_VALUE CSS KRB_CORRUPT_SPBITMAP_INTER POKE_VALUE0 CURSOR_STATS KRB_CORRUPT_SPBITMAP_REPEA POOL_SIMULATOR CURSORDUMP KRB_CORRUPT_SPHEADER_INTER PROCESSSTATE CURSORTRACE KRB_CORRUPT_SPHEADER_REPEA REALFREEDUMP DATA_ERR_OFF KRB_FAIL_INPUT_FILENO RECORD_CALLSTACK DATA_ERR_ON KRB_OPTIONS RECOVERY DBSCHEDULER KRB_OVERWRITE_ACTION REDOHDR DROP_SEGMENTS KRB_PIECE_FAIL REDOLOGS DUMP_ADV_SNAPSHOTS KRB_SET_TIME_SWITCH REFRESH_OS_STATS DUMP_ALL_COMP_GRANULES KRB_SIMULATE_NODE_AFFINITY ROW_CACHE DUMP_ALL_COMP_GRANULE_ADDR KRB_TRACE RULESETDUMP DUMP_ALL_OBJSTATS KRB_UNUSED_OPTION RULESETDUMP_ADDR DUMP_ALL_REQS KRBMRSR_LIMIT SAVEPOINTS DUMP_PINNED_BUFFER_HISTORY KRBMROR_LIMIT SELFTESTASM DUMP_TEMP KRC_TRACE SET_NBLOCKS DUMP_TRANSFER_OPS KSDTRADV_TEST SET_TSN_P1 DUMPGLOBALDATA KSFQP_LIMIT SHARED_SERVER_STATE ENQUEUES KSKDUMPTRACE SIMULATE_EOV ERRORSTACK KTPR_DEBUG SYSTEMSTATE  EVENT_TSM_TEST KSTDUMPALLPROCS SYSTEMSTATE_GLOBAL EXCEPTION_DUMP KSTDUMPALLPROCS_CLUSTER TEST_DB_ROBUSTNESS FAILOVER KSTDUMPCURPROC TEST_GET_CALLER FBHDR KUPPLATCHTEST TEST_SPACEBG FBINC KXFPCLEARSTATS TEST_STACK_DUMP FBTAIL KXFPDUMPTRACE TR_CRASH_AFTER_WRITE  FILE_HDRS KXFPBLATCHTEST TR_CORRUPT_ONE_SIDE FLASHBACK_GEN KXFXCURSORSTATE TR_READ_ONE_SIDE  FLUSH_CACHE KXFXSLAVESTATE TR_SET_ALL_BLOCKS FLUSH_JAVA_POOL LATCHES TR_SET_BLOCK  FULL_DUMPS LDAP_KERNEL_DUMP TR_SET_SIDE GC_ELEMENTS LDAP_USER_DUMP TRACE_BUFFER_OFF  GES_STATE LIBRARY_CACHE TRACE_BUFFER_ON GLOBAL_AREA LOCKS TREEDUMP  HANGANALYZE LOGERROR TR_RESET_NORMAL HANGANALYZE_PROC LOGHIST UPDATE_BLOCK0_FORMAT HANGANALYZE_GLOBAL LONGF_CREATE WORKAREATAB_DUMP   DUMPSGA Dump fixed SGA oradebug dumpsga oradebug dumpsga SQL> oradebug dumpsga c:\oracle\product\admin\orabase\udump\orabase_ora_2120.trc   DUMPTYPE Print/dump an address with type info oradebug dumptype TBD   DUMPVAR Print/dump a fixed PGA/SGA/UGA variable oradebug dumpvar [level] SQL> oradebug setmypid SQL> oradebug dumpvar SGA kcbnbh   EVENT Set trace event in process oradebug EVENT   TRACE NAME CONTEXT FOREVER, LEVEL SQL> oradebug setmypid SQL> oradebug EVENT 10046 TRACE NAME CONTEXT FOREVER, LEVEL 12 SQL> oradebug unlimit   FFBEGIN Flash Freeze the Instance oradebug ffbegin SQL> oradebug ffbegin   FFDEREGISTER FF deregister instance from cluster oradebug ffderegistger SQL> oradebug ffderegister   FFRESUMEINST Resume the flash frozen instance oradebug ffresumeinst SQL> oradebug ffresumeinst   FFSTATUS Flash freeze status of instance oradebug ffstatus SQL> oradebug ffstatus   FFTERMINST Call exit and terminate instance oradebug ffterminst SQL> oradebug ffterminst   FLUSH Flush the current contents of the trace buffer to the trace file use oradebug flush SQL> oradebug flush   HANGANALYZE Analyze system hang for stand-alone oradebug hanganalzye [level] [syslevel] SQL> oradebug setmypid; SQL> oradebug hanganalyze; SQL> oradebug flush; Analyze system hang for RAC SQL> oradebug setmypid; SQL> oradebug -g def hanganalyze 1 SQL> oradebug flush;   HELP Describe one or all commands  oradebug help oradebug help SQL> oradebug help SQL> oradebug help flush   LKDEBUG Invoke global enqueue service debugger oradebug lkdebug SQL> oradebug lkdebug   MAPCOWSGA Map SGA as COW oradebug mapcowsga SQL> oradebug mapcowsga "c: emp"   NSDBX Invoke CGS name-service debugger oradebug nsdbx SQL> oradebug nsdbx   PEEK Print/Dump memory oradebug peek [level] SQL> oradebug peek 0x20005F0C 12   POKE Modify memory. Never perform this function on a production database! oradebug poke SQL> oradebug poke 0x20005F0C 4 0x46495845   PROCSTAT Dump process statistics oradebug procstat SQL> oradebug setmypid SQL> oradebug procstat   RESUME Resume execution oradebug resume SQL> oradebug resume   SESSION_EVENT Set trace event in session oradebug session_event SQL> oradebug session_event 10053 TRACE NAME CONTEXT FOREVER, LEVEL 1   SETINST Set instance list oradebug setinst SQL> oradebug setinst "1"   SETMYPID Sets the oradebug PID to the current process oradebug setmypid SQL> oradebug setmypid   SETORAPID Set PID of Oracle process to debug oradebug setorapid ['force'] SELECT pid FROM gv$process  WHERE addr = (   SELECT paddr   FROM gv$session   WHERE sid = DBMS_SUPPORT.MYSID); or SELECT pid FROM gv$process  WHERE addr = (   SELECT paddr   FROM gv$session   WHERE sid = (SELECT sid FROM gv$mystat WHERE ROWNUM = 1)); /* or one of the processes from the background, dispatcher, job queue, parallel, or shared server process lists */ SQL> oradebug setorapid 19   SETOSPID Set OS pid of process to debug The operating system process ID is the PID on Unix systems and the thread number for Windows systems oradebug setospid Do not use as it often fails. Use setorapid instead.   SETORAPNAME Set Oracle process name to debug oradebug setorapname TBD   SETVAR Modify a fixed PGA/SGA/UGA variable oradebug setvar SQL> oradebug setvar SGA kcfdfk 200   SGATOFILE Dump SGA to file oradebug sgatofile SQL> oradebug ffbegin SQL> oradebug sgatofile "c: emp" SQL> oradebug ffresumeinst   SHORT_STACK Get abridged OS stack oradebug short_stack SQL> oradebug short_stack   SHOW Show watchpoints oradebug show watchpoint SQL> oradebug show?   SKDSTTPCS Helps translate PCs to names oradebug skdsttpcs SQL> oradebug skdsttpcs?   SUSPEND Suspends the current process oradebug suspend SQL> oradebug suspend   TRACEFILE_NAME Get trace file name Will not return a value on Windows systems oradebug tracefile_name SQL> oradebug tracefile_name   UNLIMIT Unlimit the size of the trace file oradebug unlimit SQL> oradebug unlimit   WAKEUP Wake up Oracle process oradebug wakeup SELECT pid FROM gv$process WHERE addr = (   SELECT paddr   FROM gv$bgprocess   WHERE name = 'SMON'); SQL> oradebug wakeup 7   WATCH Watch a region of memory oradebug watch SQL> oradebug watch?   Demo Taking a heap dump during a large (sorting) query -- This example requires two sessions, session 1 logged on SYS AS SYSDBA and session 2 which  -- executes the query. In session 2 identify the PID using SELECT pid FROM gv$process WHERE addr IN (   SELECT paddr    FROM gv$session   WHERE sid = dbms_support.mysid); In this example the PID was 12 In session 1 set the Oracle PID using ORADEBUG SETORAPID 12 In session 2 start the query SELECT ... FROM t1 ORDER BY .... In session 1 suspend session 2 ORADEBUG SUSPEND The query in session 2 will be suspended In session 1 run the heap dump ORADEBUG DUMP HEAPDUMP 1 The heapdump will show the memory structures allocated for the sort. At this point further dumps e.g. subheap dumps can be taken. In session 1 resume session 2 ORADEBUG RESUME The query in session 2 will resume execution

Related Topics Dumping Oracle Trace & TKPROF