Purpose
Returns session or request resource usage statistics.
Definition
REPLACE FUNCTION SYSLIB.MonitorSession (HostIdIn SMALLINT, UserNameIn TD_ANYTYPE, SessionNoIn INTEGER ) RETURNS TABLE (HostId SMALLINT, SessionNo INTEGER, LogonPENo SMALLINT, RunVprocNo SMALLINT, PartName VARCHAR(16) CHARACTER SET LATIN, PEstate VARCHAR(18) CHARACTER SET LATIN, LogonTime VARCHAR(22) CHARACTER SET LATIN, UserId INTEGER, LSN INTEGER, UserName VARCHAR(128) CHARACTER SET UNICODE, UserAccount VARCHAR(128) CHARACTER SET UNICODE, PECPUsec FLOAT, XActCount FLOAT, ReqCount FLOAT, ReqCacheHits FLOAT, AMPState VARCHAR(18) CHARACTER SET LATIN, AMPCPUSec FLOAT, AMPIO FLOAT, ReqSpool FLOAT, Blk1HostId SMALLINT, Blk1SessNo INTEGER, Blk1UserId INTEGER, Blk1Lmode CHAR(1) CHARACTER SET LATIN, Blk1Otype CHAR(2) CHARACTER SET LATIN, Blk1ObjDBID INTEGER, Blk1ObjTID INTEGER, Blk1Status CHAR(1) CHARACTER SET LATIN, Blk2HostId SMALLINT, Blk2SessNo INTEGER, Blk2UserId INTEGER, Blk2Lmode CHAR(1) CHARACTER SET LATIN, Blk2Otype CHAR(2) CHARACTER SET LATIN, Blk2ObjDBID INTEGER, Blk2ObjTID INTEGER, Blk2Status CHAR(1) CHARACTER SET LATIN, Blk3HostId SMALLINT, Blk3SessNo INTEGER, Blk3UserId INTEGER, Blk3Lmode CHAR(1) CHARACTER SET LATIN, Blk3Otype CHAR(2) CHARACTER SET LATIN, Blk3ObjDBID INTEGER, Blk3ObjTID INTEGER, Blk3Status CHAR(1) CHARACTER SET LATIN, MoreBlockers CHAR(1) CHARACTER SET LATIN, LogonSource VARCHAR(128), HotAmp1CPU FLOAT, HotAmp2CPU FLOAT, HotAmp3CPU FLOAT, HotAmp1CPUId FLOAT, HotAmp2CPUId FLOAT, HotAmp3CPUId FLOAT, HotAmp1IO FLOAT, HotAmp2IO FLOAT, HotAmp3IO FLOAT, HotAmp1IOId INTEGER, HotAmp2IOId INTEGER, HotAmp3IOId INTEGER, LowAmp1CPU FLOAT, LowAmp2CPU FLOAT, LowAmp3CPU FLOAT, LowAmp1CPUId INTEGER, LowAmp2CPUId INTEGER, LowAmp3CPUId INTEGER, LowAmp1IO FLOAT, LowAmp2IO FLOAT, LowAmp3IO FLOAT, LowAmp1IOId INTEGER, LowAmp2IOId INTEGER, LowAmp3IOId INTEGER, AvgAmpCPUSec FLOAT, AvgAmpIOCnt FLOAT, AmpCount SMALLINT, TempSpaceUsg FLOAT, ReqStartTime VARCHAR(22) CHARACTER SET LATIN, ReqCPU FLOAT, ReqIO FLOAT, ReqNo INTEGER, WlcId INTEGER, DontReclassifyFlag SMALLINT, ProxyUser VARCHAR (128)CHARACTER SET UNICODE, CPUDecayLevel SMALLINT, IODecayLevel SMALLINT, TacticalCPUException INTEGER, TacticalIOException INTEGER, ReqIOKB FLOAT, ReqPhysIO FLOAT ReqPhysIOKB FLOAT ReqStepsCompletedCnt INTEGER, RedriveProtection CHAR (2) CHARACTER SET LATIN, CurrentRedriveParticipation CHAR (1) CHARACTER SET LATIN, ReqRedriveSpoolSpace FLOAT, BlockerSessionCnt SMALLINT, ReqTblOpBytesIn FLOAT, ReqTblOpBytesOut FLOAT, ProxyUserId INTEGER, ZoneId INTEGER, ReqHotAmpCPU FLOAT, ReqHotAmpCPUId SMALLINT, ReqHotAmpIO FLOAT, ReqHotAmpIOId SMALLINT, ReqInvolvedAMPCnt SMALLINT, ReqFirstRespTime VARCHAR(22) CHARACTER SET LATIN, ReqLocalQueryStatus SMALLINT, ReqRemoteHostId SMALLINT, ReqRemoteSessionId INTEGER, ReqRemoteRequestId INTEGER, ReqRemoteQueryId FLOAT) ReqHotAmpSpool FLOAT, ReqHotAmpSpoolId SMALLINT, ReqMapNo SMALLINT, ReqMaxNumMapAMPs INTEGER, ReqMinNumMapAMPs INTEGER, ReqSysDefNumMapAMPs INTEGER, ReqRemoteHostIp VARCHAR(128) CHARACTER SET UNICODE, ReqServerName VARCHAR(128) CHARACTER SET UNICODE, ReqFlexReleased SMALLINT ) . . . ;
Input Parameters
Parameter | Description |
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HostIdIn | Logical ID of a host (or client) with sessions
logged on. A value of -1 indicates all hosts. |
UserNameIn | User name of the session. An asterisk (*) indicates all users. |
SessionNoIn | Number of the session. A value of zero indicates all sessions. |
Usage Notes - MonitorSession
This table function is only supported in Constant Mode.
The following CPU fields in the MonitorSession response are affected by the MonSesCPUNormalization field:
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The MonSesCPUNormalization field, a DBS Control General Record field, controls whether normalized or non-normalized statistical CPU data is reported by the functions: MonitorSession and MonitorMySessions, and by the MONITOR SESSION request. For more information about the MonSesCPUNormalization field and CPU normalization, see the DBS Control utility in Teradata Vantage™ - Database Utilities , B035-1102 .
For a complete description of these fields, see the topic that follows.
You can also refer to MonitorMySessions or MONITOR SESSION for a list of these CPU fields.
A Trusted Session enables a middle-tier application to switch the user on an already active database session to another user (proxy user). Once the user is switched, all subsequent requests use the privileges and session attributes of the proxy user. MonitorSession returns the logon user name and ID in the UserName and UserId fields and the proxy user name and ID in the ProxyUserName and ProxyUserId fields.
The MonitorSession function provides similar functionality to the PMPC MONITOR SESSION request. For information about this interface, see MONITOR SESSION.
Result Rows
Column Name | Description |
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HostId | Logical host ID associated with a PE or session.
For a PE, HostId identifies one of the hosts or LANs associated with the described
PE. For a session, the combination of a host ID and a session number uniquely
identifies a user session on the system. This value is NULL for AMPs. A value of zero
represents the Supervisor window.
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SessionNo | Number of the current session. Together with a given host ID, a session number uniquely identifies a session on the Teradata Database system. This value is assigned by the host (or client) at logon time. |
LogonPENo | Vproc number of the PE the session is currently logged on to; it identifies the PE that has control responsibility for the session. Normally, this is the PE that processed the logon request; but if that PE goes offline, it will be the PE to which the session was switched. |
RunVprocNo | Vproc number of the AMP or PE currently assigned
to process the session requests. For sessions in Teradata SQL partitions, this value is identical to the LogonPENo. For sessions in FastLoad or MultiLoad partitions, this is the AMP that initially processes the data being loaded. For HUTPARSE or HUTCTL (archive/recovery) sessions, this value is NULL. If a RunVprocNo value of -1 in record mode or NULL in indicator mode is returned by MonitorSession for FastLoad, MultiLoad or FastExport sessions, this indicates that the session is in the process of starting up. |
PartName | Name of the session partition associated with this session. Following a successful logon request by a session or as part of a connect request, the session identifies the partition with which the user wants the session to be associated. FASTLOAD, Teradata SQL, MONITOR, INTERNAL are examples of valid partition names. |
PEstate | Current state of the session within the PE. See the MONITOR SESSION PEState field for a list of the PEState values. |
LogonTime | Date and time portion of the information recorded by Session Control when a session successfully logs on. It is usually formatted for display as yyyy/mm/dd 99:99:99.99, which represents the year, month, day, hours: minutes: seconds. |
UserId | User or internal ID of a user for this session. Within the Teradata Database, UserId is equivalent to Database ID. Typically, UserId is used when the associated record is known to be a user name, and Database ID is used when the associated record is known to be a database. However, UserId can identify either a given user or database name. |
LSN | Logon Sequence Number (LSN) that is associated
with a session when the session logs on. It identifies a collection of sessions
performing a related activity. For example, in a FastLoad job, a user is logged on
as a Teradata SQL session, as well as n FastLoad
sessions with the same user name. Therefore, n+1
sessions (1 Teradata SQL and n FastLoad) with
the same LSN are all associated with the given FastLoad job. To see how the FastLoad
job is doing, the user can pick out all sessions reported with the same LSN
number. This information supplies the parent-child
relationship for sessions involved with FastLoad, MultiLoad, and Archive/Recovery
jobs.
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UserName | User name of the session. |
UserAccount | Current account for the session. |
PECPUsec | CPU time, in seconds, used in a PE by the
associated session for parsing and dispatching requests. It is accurate to the
second. This value is valid only when associated with Teradata SQL and MONITOR partition sessions. This value is NULL when it is returned for all other sessions. |
XActCount | Number of explicit and implicit transactions
executed by the session. This value is valid only when returned for Teradata
SQL sessions, and is NULL for all other partition sessions. For this value, you
must make a request for data before completion of the first collection period that
follows either a system outage or a change in the ResMonitor rate
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ReqCount | Number of requests (Tequel Start Request (TSR)
messages) initiated by the session. This value is NULL when a request for data is made
before completion of the first collection period following either a system outage
or change in the ResMonitor rate.
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ReqCacheHits | Number of times that this session processed a
request using information from the Teradata SQL Parser request cache, specifically,
how many times there was a request cache hit. This value is valid only for Teradata SQL sessions, and is NULL for all other partition sessions. This value is also NULL when a request for data is made before completion of the first collection period following either a system outage or a change in the ResMonitor rate. |
AMPState | Current state of the associated session in AMP
vprocs in decreasing priority:
This value is NULL when a request for data is made before completion of the first collection period following either a system outage or a change in the SesMonitorLoc or SesMonitorSys rate. |
AMPCPUSec | Current elapsed CPU time, in seconds, used on all
AMPs by the associated session for executing requests. For example, for Teradata SQL
requests, this is the time spent by the Teradata Database actively working or
rolling back an aborted transaction. This does not include any PDE CPU time spent
handling Teradata Database requests. This value is NULL when a request for data is made before completion of the first collection period following either a system outage or a change in the ResMonitor rate. |
AMPIO | Current number of logical Reads and Writes issued
across all AMPs by the associated session. This value is NULL when a request for data is made before completion of the first collection period following either a system outage or a change in the ResMonitor rate. |
ReqSpool | Current spool used by current request across all
AMPs, expressed as a number of bytes. This value is NULL when a request for data is made before completion of the first collection period following either a system outage or a change in the ResMonitor rate. |
Blk1HostId, Blk2HostId, Blk3HostId |
Logical host ID of a session causing a block. This value is derived from equating the transactions causing a Teradata Database lock conflict to the sessions that issued those transactions. The Blk_x_HostId in combination with Blk_x_SessNo uniquely identifies the session that is causing a block. A valid value is not returned if an inactive Archive/Recovery job is causing the lock conflict, because no session is logged in. This value is NULL if:
If the Blk_x_HostId, Blk_x_SessNo, and Blk_x_UserID values all return as NULLs and AMPState is BLOCKED, a Host Utility (HUT) lock left over after the session holding the lock was aborted or logged off. The lock was never released, and no blocking information is available because the session no longer exists. Use the Show Locks utility to obtain the user name that placed the HUT lock. For more information, see Teradata Vantage™ - Database Utilities , B035-1102 . |
Blk1SessNo, Blk2SessNo, Blk3SessNo |
Number of the session causing a block. This value is derived from associating the transactions causing a lock conflict to the sessions that issued those transactions. The Blk_x_SessNo in combination with Blk_x_HostId uniquely identifies the session causing a block. This information is unavailable if an inactive Archive/Recovery job is causing the lock conflict. This value is NULL if:
If the Blk_x_HostId, Blk_x_SessNo, and Blk_x_UserID values all return as NULLs and AMPState is BLOCKED, a host utility lock left over after the session holding the lock was aborted or logged off. The lock was never released, and no blocking information is available because the session no longer exists. Use the Show Locks utility to obtain the user name that placed the HUT lock. For more information, see Teradata Vantage™ - Database Utilities , B035-1102 . |
Blk1UserId, Blk2UserId, Blk3UserId |
ID of the user or host utility job preventing the session from being granted a lock. This information is especially important when an Archive/Recovery job is holding the lock, because the user ID is the only information available about who placed the lock. This value is NULL if:
If the Blk_x_HostId, Blk_x_SessNo, and Blk_x_UserID values all return as NULLs and AMPState is BLOCKED, a host utility lock left over after the session holding the lock was aborted or logged off. The lock was never released, and no blocking information is available because the session no longer exists. Use the Show Locks utility to obtain the user name that placed the HUT lock. For more information, see Teradata Vantage™ - Database Utilities , B035-1102 . |
Blk1Lmode, Blk2Lmode, Blk3Lmode |
Mode (severity) of the lock involved in causing a
block:
Locks are reported in decreasing order of severity because removing the most severe lock conflict may eliminate the source of the lock conflict. This value is NULL if:
A session may be blocked by either a granted lock or an ungranted lock that precedes the blocked lock in the queue and is in conflict with the lock requested by this blocked session. For information on whether the lock is granted, see the MONITOR SESSSION fields: Blk_1_Status, Blk_2_Status, and Blk_3_Status. |
Blk1Otype, Blk2Otype, Blk3Otype |
Type of object whose lock is causing the session
described by the associated row to be blocked:
However, this object is not necessarily the type of object the blocked session is trying to access. For example, if the session is requesting a row hash lock, the blocking object could be a database, table, or row hash. This value is NULL if:
For a Table T, it is possible for User A to block User B with a table level lock on Table T on AMP_1 and with a Row Hash Level lock on that same Table T on AMP_2. When that occurs, the only lock conflict reported is that User B is blocked by User A on a table. |
Blk1ObjDBID, Blk2ObjDBID, Blk3ObjDBID |
Unique ID of the database object over which a
lock conflict is preventing the session from being granted a lock. Within the Teradata Database system, Database ID is equivalent to User ID. Typically, User ID is used when the associated record is known to be a user name, and Database ID is used when the associated record is known to be a database. However, Database ID can identify either a user or database name. This value is NULL if:
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Blk1ObjTID, Blk2ObjTID, Blk3ObjTID |
Unique ID of the table object over which a lock
conflict is preventing the session from being granted a lock. This value is NULL if:
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Blk1Status, Blk2Status, Blk3Status |
Status of lock causing a block:
This value is NULL if:
A lock request may be blocked by either a granted
lock or an ungranted lock that precedes the blocked lock request in the queue and
is in conflict with it.
A status of Waiting has a higher priority than that of Granted when there is more than one lock involved. For example, for a given object and a given session, a session that is blocked by a Waiting lock on one AMP and a Granted lock on another AMP has Waiting reported as its status. |
MoreBlockers | Indicator of more lock conflict:
This value is NULL if:
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LogonSource | Logon source information. At logon time, this
information is optionally supplied by the Teradata Director Program or the Gateway
to further identify the physical or logical location of the session, the logon user
name, and the interface under which the session was initiated. (For example, the
data string may include DBC as the user ID and BTEQ as the interface.) A two-byte value precedes the LogonSource data to
indicate the length of the string. The length value is zero if LogonSource is
NULL.
For a list of the commonly seen LogonSource string application names, see Teradata Vantage™ SQL Data Definition Language Detailed Topics , B035-1184 . |
HotAmp1CPU | CPU time of the highest CPU utilized AMP during
the collection interval. This value is NULL if the request is made before the collection period expires. |
HotAmp2CPU | CPU time of the second highest CPU utilized AMP
during the collection interval. This value is NULL if the request is made before the collection period expires. |
HotAmp3CPU | CPU time of the third highest CPU utilized AMP
during the collection interval. This value is NULL if the request is made before the collection period expires, and if there are only two AMPs on the system. |
HotAmp1CPUId | Vproc ID of the highest CPU utilized AMP for the
last session collection interval. This value is NULL if the request is made before the collection period expires. |
HotAmp2CPUId | Vproc ID of the second highest CPU utilized AMP
for the last session collection interval. This value is NULL if the request is made before the collection period expires. |
HotAmp3CPUId | Vproc ID of the third highest CPU utilized AMP
for the last session collection interval. This value is NULL if the request is made before the collection period expires, and if there are only two AMPs in the system. |
HotAmp1IO | I/O count of the highest I/O utilized AMP during
the collection interval. This value is NULL if the request is made before the collection period expires. |
HotAmp2IO | I/O count of the second highest I/O utilized AMP
during the collection interval. This value is NULL if the request is made before the collection period expires. |
HotAmp3IO | I/O count of the third highest I/O utilized AMP
for the last collection interval. This value is NULL if the request is made before the collection period expires, and if there are only two AMPs in the system. |
HotAmp1IOId | Vproc ID of the highest I/O utilized AMP for the
last session collection interval. This value is NULL if the request is made before the collection period expires. |
HotAmp2IOId | Vproc ID of the second highest I/O utilized AMP
for the last session collection interval. This value is NULL if the request is made before the collection period expires. |
HotAmp3IOId | Vproc ID of the third highest I/O utilized AMP
for the last session collection interval. This value is NULL if the request is made before the collection period expires, and if there are only two AMPs in the system. |
LowAmp1CPU | CPU time of the lowest CPU utilized AMP during
the collection interval. This value is NULL if the request is made before the collection period expires. |
LowAmp2CPU | CPU time of the second lowest CPU utilized AMP
during the collection interval. This value is NULL if the request is made before the collection period expires. |
LowAmp3CPU | CPU time of the third lowest CPU utilized AMP
during the collection interval. This value is NULL if the request is made before the collection period expires, and if there are only two AMPs on the system. |
LowAmp1CPUId | Vproc ID of the lowest CPU utilized AMP for the
last session collection interval. This value is NULL if the request is made before the collection period expires. |
LowAmp2CPUId | Vproc ID of the second lowest CPU utilized AMP
for the last session collection interval. This value is NULL if the request is made before the collection period expires. |
LowAmp3CPUId | Vproc ID of the third lowest CPU utilized AMP for
the last session collection interval. This value is NULL if the request is made before the collection period expires, and if there are only two AMPs on the system. |
LowAmp1IO | I/O count of the lowest I/O utilized AMP during
the collection interval. This value is NULL if the request is made before the collection period expires. |
LowAmp2IO | I/O count of the second lowest I/O utilized AMP
during the collection interval. This value is NULL if the request is made before the collection period expires. |
LowAmp3IO | I/O count of the third lowest I/O utilized AMP
during the collection interval. This value is NULL if the request is made before the collection period expires, and if there are only two AMPs on the system. |
LowAmp1IOId | Vproc ID of the lowest I/O utilized AMP for the
last session collection interval. This value is NULL if the request is made before the collection period expires. |
LowAmp2IOId | Vproc ID of the second lowest I/O utilized AMP
for the last session collection interval. This value is NULL if the request is made before the collection period expires. |
LowAmp3IOId | Vproc ID of the third lowest I/O utilized AMP for
the last session collection interval. This value is NULL if the request is made before the collection period expires, and if there are only two AMPs on the system. |
AvgAmpCPUSec | Average AMP CPU utilization for the last session
collection interval. The average is calculated as the sum of CPU utilization for all
amps participating divided by the number of online AMPs. This value is NULL if the request is made before the collection period expires. |
AvgAmpIOCnt | Average AMP I/O utilization for the last session
collection interval. The average is calculated as the sum of I/O utilization for all
AMPs participating divided by the number of online AMPs. This value is NULL if the request is made before the collection period expires. |
AmpCount | Current number of AMPs currently executing on the associated node. |
TempSpaceUsg | Total amount, in bytes, of temporary space used
by the session. This value is NULL if the session did not materialize any temporary tables. |
ReqStartTime | Date and time of the current request on the session started. It is usually formatted for display as yyyy/mm/dd 99:99:99.99, which represents the year, month, day hours: minutes: seconds. |
ReqCPU | Total CPU usage by the current SQL request on the
session on all AMPs. This value contains proper request-level statistics for DBC/SQL
sessions running SQL requests only. Ignore the value returned in this field for
other types of sessions, such as DBC/SQL sessions linked to a utility job. This field is equivalent to the MONITOR SESSION field RequestAmpCPU. |
ReqIO | Total number of accesses by the current SQL
request for the session on all AMPs. This value contains proper request-level
statistics for DBC/SQL sessions running SQL requests only. Ignore the value returned
in this field for other types of sessions, such as DBC/SQL sessions linked to a
utility job. This field is equivalent to the MONITOR SESSION field RequestAmpI/O. |
ReqNo | Active request number. If no request is running, a value of zero or NULL is displayed in indicator mode. In some rare cases, in the very early phase of a request in parsing state, when PEState = PARSING, the request number may not be available and returned as zero or NULL. The active request number will be available on the next collection. |
WDId | Workload ID associated with the specified request. |
DontReclassifyFlag | Flag indicating that the next request on the session will not be classified but will use the WD ID already assigned to the session. This will occur if this is a utility session or a WlcId was assigned to the session using the TDWMAssignWD function or the TDWM WD ASSIGNMENT request. For more information on these APIs, see Teradata Dynamic Workload Management APIs: PM/APIs. |
ProxyUser | Name of the proxy user in a trusted session. |
CPUDecayLevel | Current most severe decay level as reached due to
CPU usage. Nodes can be at different levels of decay (for
example, 0, 1, or 2).
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IODecayLevel | Current most severe decay level as reached due to
I/O usage. Nodes can be at different levels of decay (for
example, 0, 1, or 2).
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TacticalCPUException | Number of nodes that encountered a CPU exception. |
TacticalIOException | Number of nodes that encountered an I/O exception. |
ReqIOKB | Total logical I/O usage in KB. |
ReqPhysIO | Number of physical I/Os. |
ReqPhysIOKB | Physical I/O usage in KB. |
ReqStepsCompletedCnt | Count of completed steps for the current request. If there is no change in ReqStepsCompletedCnt from the previous Monitor Session collection, this indicates that there are no new steps completed. |
RedriveProtection | Redrive protection type:
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CurrentRedriveParticipation |
Indicates if the session is participating in Redrive. Sessions that use Redrive can enable or disable the functionality using the REDRIVE reserved query band. Possible values:
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ReqRedriveSpoolSpace | Persistent spool space for the current request. |
BlockerSessionCnt | Total number of blocker sessions for the session. Unlike the MONITOR SESSION request, this field returns only the first three blocker sessions in the record parcel. There are no additional blocker sessions if there are more than three blocker sessions. |
ReqTblOpBytesIn | The total number of bytes transferred into
Teradata Database from a foreign server for the current request through one or more
table operators. The request may involve one or multiple table
operator executions. The ReqTblOpBytesIn output parameter shows bytes transferred
across all invocations within the request.
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ReqTblOpBytesOut | The total number of bytes transferred out of
Teradata Database and into a foreign server for the current request through one or
more table operators. The request may involve one or multiple table
operator executions. The ReqTblOpBytesOut output parameter shows bytes transferred
across all invocations within the request.
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ProxyUserId | The UserID charged for SPOOL and TEMP space if being charged to the proxy user. |
ZoneId | The unique identifier of the zone. |
ReqHotAmpCPU | The CPU time of the highest CPU utilized AMP during the life of the current request on the session. |
ReqHotAmpCPUId | Vproc ID of the highest CPU utilized AMP for the current request. |
ReqHotAmpIO | I/O count of the highest I/O utilized AMP during the life of the current request on the session. |
ReqHotAmpIOId | Vproc ID of the highest I/O utilized AMP for the current request. |
ReqInvolvedAMPCnt | The number of AMPs involved in processing the current request. |
ReqFirstRespTime | Date and time that the first response of current request on the session is ready. The response may be held to meet the TASM Minimum Response Time. |
ReqLocalQueryStatus | The current state of the Unified Data Architecture (UDA) query. |
ReqRemoteHostId | Host ID of the remote system. |
ReqRemoteSessionId | Session ID of the executing remote query. |
ReqRemoteRequestId | Request ID of the executing remote query. |
ReqRemoteQueryId | Query ID of the executing remote query. |
ReqHotAmpSpool | Spool value of the highest spool utilized AMP
during the life of the current request on the session. This value is NULL if no request is running on the session. |
ReqHotAmpSpoolId | Vproc ID of the highest spool utilized AMP for
the current request. This value is NULL if no request is running on the session. |
ReqMapNo | Map number for the largest map the request is using. |
ReqMaxNumMapAMPs | Number of AMPs in the largest contiguous map used by the request. |
ReqMinNumMapAMPs | Number of AMPs in the smallest contiguous map used by the request. |
ReqSysDefNumMapAMPs | Number of AMPs in the system-default map used by the request. |
ReqRemoteHostIp | Host IP address of the remote system. |
ReqServerName | Name of the foreign server. |
ReqFlexReleased | The TDWM Flex Throttle feature detects available
system resources, overrides existing workload throttle limits and automatically
releases queries from the delay queue. This minimizes the DBA manually managing the
TASM delay queue. Note, only Workload throttles are overridden; all System level
throttles are still honored. Return values:
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Example: Using MonitorSession
sel * from table (monitorsession(-1,'*',0)) as t1 where t1.username='jck'; *** Query completed. One row found. 116 columns returned. *** Total elapsed time was 1 second. HostId 1 SessionNo 1006 LogonPENo 30718 RunVprocNo 30718 PartName DBC/SQL PEstate DISPATCHING LogonTime 2016/04/29 11:26:46.00 UserId 1028 LSN 0 UserName JCK UserAccount DBC PECPUsec 2.40000000000000E-002 XActCount 1.00000000000000E 000 ReqCount 2.00000000000000E 000 ReqCacheHits 0.00000000000000E 000 AMPState ACTIVE AMPCPUSec 9.87328000000000E 002 AMPIO 3.08254000000000E 005 ReqSpool 3.87057326080000E 010 Blk1HostId 0 Blk1SessNo 0 Blk1UserId 0 Blk1Lmode Blk1Otype Blk1ObjDBID 0 Blk1ObjTID 0 Blk1Status Blk2HostId 0 Blk2SessNo 0 Blk2UserId 0 Blk2Lmode Blk2Otype Blk2ObjDBID 0 Blk2ObjTID 0 Blk2Status Blk3HostId 0 Blk3SessNo 0 Blk3UserId 0 Blk3Lmode Blk3Otype Blk3ObjDBID 0 Blk3ObjTID 0 Blk3Status MoreBlockers LogonSource (TCP/IP) f1a3 153.64.183.39 MYSYSTEM 9964 HotAmp1CPU 1.56840000000000E 001 HotAmp2CPU 1.56760000000000E 001 HotAmp3CPU 1.56760000000000E 001 HotAmp1CPUId 3 HotAmp2CPUId 1 HotAmp3CPUId 2 HotAmp1IO 4.89900000000000E 003 HotAmp2IO 4.89700000000000E 003 HotAmp3IO 4.88900000000000E 003 HotAmp1IOId 2 HotAmp2IOId 3 HotAmp3IOId 0 LowAmp1CPU 1.56760000000000E 001 LowAmp2CPU 1.56760000000000E 001 LowAmp3CPU 1.56760000000000E 001 LowAmp1CPUId 1 LowAmp2CPUId 2 LowAmp3CPUId 0 LowAmp1IO 4.88400000000000E 003 LowAmp2IO 4.88900000000000E 003 LowAmp3IO 4.89700000000000E 003 LowAmp1IOId 1 LowAmp2IOId 0 LowAmp3IOId 3 AvgAmpCPUSec 1.56780000000000E 001 AvgAmpIOCnt 4.89225000000000E 003 AmpCount 4 TempSpaceUsg 0.00000000000000E 000 ReqStartTime 2016/04/29 11:26:46.00 ReqCPU 9.87328000000000E 002 ReqIO 3.08254000000000E 005 ReqNo 3 WlcId 0 DontReclassifyFlag 255 ProxyUser CPUDecayLevel 0 IODecayLevel 0 TacticalCPUException 0 TacticalIOException 0 ReqIOKB 3.82782930000000E 007 ReqPhysIO 8.01450000000000E 004 ReqPhysIOKB 3.50023490000000E 007 ReqStepsCompletedCnt 9 RedriveProtection MN CurrentRedriveParticipation F ReqRedriveSpoolSpace 0.00000000000000E 000 BlockerSessionCnt 0 ReqTblOpBytesIn 0.00000000000000E 000 ReqTblOpBytesOut 0.00000000000000E 000 ProxyUserId 0 ZoneId 0 ReqHotAmpCPU 2.47016000000000E 002 ReqHotAmpCPUId 3 ReqHotAmpIO 7.71860000000000E 004 ReqHotAmpIOId 3 ReqInvolvedAMPCnt 4 ReqFirstRespTime 0000/00/00 00:00:00.00 ReqLocalQueryStatus 0 ReqRemoteHostId 0 ReqRemoteSessionId 0 ReqRemoteRequestId 0 ReqRemoteQueryId 0.00000000000000E 000 ReqHotAmpSpool 9.69185945600000E 009 ReqHotAmpSpoolId 3 ReqMapNo 0 ReqMaxNumMapAMPs 0 ReqMinNumMapAMPs 0 ReqSysDefNumMapAMPs 0 ReqRemoteHostIp ReqServerName ReqFlexReleased 0