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334 строки
12 KiB
Plaintext
334 строки
12 KiB
Plaintext
Long operations:
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select * from v$session_longops;
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-----------------------------------------------
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For Oracle I may can suggest to use Oracle tracing facilities.
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Every dove server establishes its own connection to Oracle, so if the defect is reproducible - traces could be switched ON
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before the test, recorded and analyzed afterwards.
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Traces could be turned ON from some advanced DBA tool (like TOAD, SQL Navigator, Enterprise Manager etc) or from sqlplus
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using command like below:
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dbms_system.set_ev (si number, - sid
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se number, --serial,
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ev number, -- event = 10046
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le number, -- level 8 or 12,
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nm varchar2 -- action name)
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(values for "sid" and "se" could be retrieved from v$sessions view).
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Trace files may not contain information about locks (only deadlocks if they have happen) - depending of how these traces
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were configured.
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Lock details can be retrieved from the database at the moment while they are exists by querying v$locks, v$locked_objects
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and so on.
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The statement that I proposed in previous responce will force traces files to include "waits" (if le=8) or
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"waits and bind variables values" (if le=12). One more way to get tracing info is described in attached Metalink doc.
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-------------------------------------------
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Sessions viewing:
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select * from v$session
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select * from v$session where machine='epbygomw0024' and username='KNOVA_7_22_ADMIN_IHARH'
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Sessions, locked for transactions:
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SELECT s.current_queue_duration, s.sql_address, t.name,
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t.start_time, t.status AS t_status, s.status AS s_status, s.sid
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FROM v$transaction t, v$session s
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WHERE t.ses_addr = s.saddr
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Sessions killing:
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alter system kill session 'SID, SERIAL' immediate;
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Locked objects:
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select lo.session_id, lo.object_id, ao.owner, ao.object_name,
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lo.oracle_username, lo.os_user_name
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from V$LOCKED_OBJECT lo, all_objects ao
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where lo.object_id=ao.object_id
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order by 1,4
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or:
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SELECT
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s.USERNAME "User Name",
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s.SID "Session",
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s.SERIAL#,
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DECODE(
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l.TYPE,
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-- Type of lock (User Types)
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'TM', 'DML enqueue',
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'TX', 'Transaction enqueue',
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'UL', 'User supplied',
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-- Type of lock (System Types)
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'BL', 'Buffer hash table instance',
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'CF', 'Control file schema global enqueue',
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'CI', 'Cross-instance function invocation instance',
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'CU', 'Cursor bind',
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'DF', 'Data file instance',
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'DL', 'Direct loader parallel index create',
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'DM', 'Mount/startup db primary/secondary instance',
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'DR', 'Distributed recovery process',
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'DX', 'Distributed transaction entry',
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'FS', 'File set',
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'HW', 'Space management operations on a specific segment',
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'IN', 'Instance number',
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'IR', 'Instance recovery serialization global enqueue',
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'IS', 'Instance state',
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'IV', 'Library cache invalidation instance',
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'JQ', 'Job queue',
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'KK', 'Thread kick',
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'MM', 'Mount definition global enqueue',
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'MR', 'Media recovery',
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'PF', 'Password File',
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'PI', 'Parallel operation',
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'PS', 'Parallel operation',
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'PR', 'Process startup',
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'RT', 'Redo thread global enqueue',
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'SC', 'System commit number instance',
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'SM', 'SMON',
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'SN', 'Sequence number instance',
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'SQ', 'Sequence number enqueue',
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'SS', 'Sort segment',
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'ST', 'Space transaction enqueue',
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'SV', 'Sequence number value',
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'TA', 'Generic enqueue',
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'TS', DECODE(l.ID2,
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0, 'Temporary segment enqueue',
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1, 'New block allocation enqueue',
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'TS'),
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'TT', 'Temporary table enqueue',
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'UN', 'User name',
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'US', 'Undo segment DDL',
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'WL', 'Being-written redo log instance',
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l.TYPE
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) "Lock Type",
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' ' "Object Name",
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DECODE(
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l.LMODE,
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0, 'None',
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1, 'Null {NULL}',
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2, 'Row Share {SS}',
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3, 'Row Exclusive {SX}',
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4, 'Share {S}',
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5, 'S/Row Exclusive {SSX}',
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6, 'Exclusive {X}',
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'Unknown'
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) "Lock Mode {Session}",
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DECODE(
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l.REQUEST,
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0, 'None',
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1, 'Null {NULL}',
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2, 'Row Share {SS}',
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3, 'Row Exclusive {SX}',
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4, 'Share {S}',
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5, 'S/Row Exclusive {SSX}',
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6, 'Exclusive {X}',
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'Unknown'
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) "Lock Mode {Process}",
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TO_CHAR(TRUNC(l.CTIME/3600)) || ':' ||
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LPAD(TO_CHAR(TRUNC((l.CTIME-TRUNC(l.CTIME/3600)*3600)/60)), 2, '0') || ':' ||
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LPAD(TO_CHAR(
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l.CTIME-(TRUNC(l.CTIME/3600)*3600)-
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(TRUNC((l.CTIME-TRUNC(l.CTIME/3600)*3600)/60)*60)
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), 2, '0')
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"Lock Time",
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l.BLOCK "Is Blocking",
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OSUSER "OS User",
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p.SPID "Process"
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FROM
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V$LOCK l, V$SESSION s, V$PROCESS p
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WHERE
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s.SID = l.SID AND s.PADDR = p.ADDR AND
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l.TYPE <> 'TM' AND (l.TYPE <> 'TX' OR l.TYPE = 'TX' AND l.LMODE <> 6)
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UNION
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SELECT
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s.USERNAME "User Name",
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s.SID "Session",
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s.SERIAL#,
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DECODE(
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l.TYPE,
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-- Type of lock (User Types)
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'TM', 'DML enqueue',
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'TX', 'Transaction enqueue',
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'UL', 'User supplied',
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-- Type of lock (System Types)
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'BL', 'Buffer hash table instance',
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'CF', 'Control file schema global enqueue',
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'CI', 'Cross-instance function invocation instance',
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'CU', 'Cursor bind',
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'DF', 'Data file instance',
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'DL', 'Direct loader parallel index create',
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'DM', 'Mount/startup db primary/secondary instance',
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'DR', 'Distributed recovery process',
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'DX', 'Distributed transaction entry',
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'FS', 'File set',
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'HW', 'Space management operations on a specific segment',
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'IN', 'Instance number',
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'IR', 'Instance recovery serialization global enqueue',
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'IS', 'Instance state',
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'IV', 'Library cache invalidation instance',
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'JQ', 'Job queue',
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'KK', 'Thread kick',
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'MM', 'Mount definition global enqueue',
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'MR', 'Media recovery',
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'PF', 'Password File',
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'PI', 'Parallel operation',
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'PS', 'Parallel operation',
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'PR', 'Process startup',
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'RT', 'Redo thread global enqueue',
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'SC', 'System commit number instance',
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'SM', 'SMON',
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'SN', 'Sequence number instance',
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'SQ', 'Sequence number enqueue',
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'SS', 'Sort segment',
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'ST', 'Space transaction enqueue',
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'SV', 'Sequence number value',
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'TA', 'Generic enqueue',
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'TS', DECODE(l.ID2,
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0, 'Temporary segment enqueue',
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1, 'New block allocation enqueue',
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'TS'),
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'TT', 'Temporary table enqueue',
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'UN', 'User name',
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'US', 'Undo segment DDL',
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'WL', 'Being-written redo log instance',
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l.TYPE
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) "Lock Type",
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o.object_name "Object Name",
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DECODE(
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l.LMODE,
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0, 'None',
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1, 'Null {NULL}',
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2, 'Row Share {SS}',
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3, 'Row Exclusive {SX}',
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4, 'Share {S}',
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5, 'S/Row Exclusive {SSX}',
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6, 'Exclusive {X}',
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'Unknown'
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) "Lock Mode {Session}",
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DECODE(
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l.REQUEST,
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0, 'None',
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1, 'Null {NULL}',
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2, 'Row Share {SS}',
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3, 'Row Exclusive {SX}',
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4, 'Share {S}',
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5, 'S/Row Exclusive {SSX}',
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6, 'Exclusive {X}',
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'Unknown'
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) "Lock Mode {Process}",
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TO_CHAR(TRUNC(l.CTIME/3600)) || ':' ||
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LPAD(TO_CHAR(TRUNC((l.CTIME-TRUNC(l.CTIME/3600)*3600)/60)), 2, '0') || ':' ||
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LPAD(TO_CHAR(
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l.CTIME-(TRUNC(l.CTIME/3600)*3600)-
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(TRUNC((l.CTIME-TRUNC(l.CTIME/3600)*3600)/60)*60)
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), 2, '0')
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"Lock Time",
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l.BLOCK "Is Blocking",
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OSUSER "OS User",
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p.SPID "Process"
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FROM
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V$LOCK l, V$SESSION s, V$PROCESS p, SYS.DBA_OBJECTS o
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WHERE
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s.SID = l.SID AND o.OBJECT_ID = l.ID1 AND l.TYPE = 'TM' AND
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s.PADDR = p.ADDR
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UNION
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SELECT
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s.USERNAME "User Name",
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s.SID "Session",
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s.SERIAL#,
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DECODE(
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l.TYPE,
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-- Type of lock (User Types)
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'TM', 'DML enqueue',
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'TX', 'Transaction enqueue',
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'UL', 'User supplied',
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-- Type of lock (System Types)
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'BL', 'Buffer hash table instance',
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'CF', 'Control file schema global enqueue',
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'CI', 'Cross-instance function invocation instance',
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'CU', 'Cursor bind',
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'DF', 'Data file instance',
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'DL', 'Direct loader parallel index create',
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'DM', 'Mount/startup db primary/secondary instance',
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'DR', 'Distributed recovery process',
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'DX', 'Distributed transaction entry',
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'FS', 'File set',
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'HW', 'Space management operations on a specific segment',
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'IN', 'Instance number',
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'IR', 'Instance recovery serialization global enqueue',
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'IS', 'Instance state',
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'IV', 'Library cache invalidation instance',
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'JQ', 'Job queue',
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'KK', 'Thread kick',
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'MM', 'Mount definition global enqueue',
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'MR', 'Media recovery',
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'PF', 'Password File',
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'PI', 'Parallel operation',
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'PS', 'Parallel operation',
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'PR', 'Process startup',
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'RT', 'Redo thread global enqueue',
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'SC', 'System commit number instance',
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'SM', 'SMON',
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'SN', 'Sequence number instance',
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'SQ', 'Sequence number enqueue',
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'SS', 'Sort segment',
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'ST', 'Space transaction enqueue',
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'SV', 'Sequence number value',
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'TA', 'Generic enqueue',
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'TS', DECODE(l.ID2,
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0, 'Temporary segment enqueue',
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1, 'New block allocation enqueue',
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'TS'),
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'TT', 'Temporary table enqueue',
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'UN', 'User name',
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'US', 'Undo segment DDL',
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'WL', 'Being-written redo log instance',
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l.TYPE
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) "Lock Type",
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'(Rollback=' || RTRIM(r.NAME) || ')' "Object Name",
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DECODE(
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l.LMODE,
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0, 'None',
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1, 'Null {NULL}',
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2, 'Row Share {SS}',
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3, 'Row Exclusive {SX}',
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4, 'Share {S}',
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5, 'S/Row Exclusive {SSX}',
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6, 'Exclusive {X}',
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'Unknown'
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) "Lock Mode {Session}",
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DECODE(
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l.REQUEST,
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0, 'None',
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1, 'Null {NULL}',
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2, 'Row Share {SS}',
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3, 'Row Exclusive {SX}',
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4, 'Share {S}',
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5, 'S/Row Exclusive {SSX}',
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6, 'Exclusive {X}',
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'Unknown'
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) "Lock Mode {Process}",
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TO_CHAR(TRUNC(l.CTIME/3600)) || ':' ||
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LPAD(TO_CHAR(TRUNC((l.CTIME-TRUNC(l.CTIME/3600)*3600)/60)), 2, '0') || ':' ||
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LPAD(TO_CHAR(
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l.CTIME-(TRUNC(l.CTIME/3600)*3600)-
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(TRUNC((l.CTIME-TRUNC(l.CTIME/3600)*3600)/60)*60)
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), 2, '0')
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"Lock Time",
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l.BLOCK "Is Blocking",
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OSUSER "OS User",
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p.SPID "Process"
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FROM
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V$LOCK l, V$SESSION s, V$PROCESS p, V$ROLLNAME r
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WHERE
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s.SID = l.SID AND l.TYPE = 'TX' AND l.LMODE = 6 AND
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TRUNC(l.ID1/65536) = r.USN AND
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s.PADDR = p.ADDR
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ORDER BY 2 ASC, 8 DESC
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