no more room in database teradata что значит
No more room in database teradata что значит
Since your «wasted» space is several orders of magnitude larger than the «actual» space to hold the data, I would consider this bad and worthy of investigation. In particular, review the PI choices.
Thks Fred. much appreciated. I will start an investigation
Hi
even Im getting the following error in MultiLoad VM Ware edition. I am just trying to update a small table
which is having 21 records
UTY0805 RDBMS failure, 2644: No more room in database personnel.
You can maintain anotehr backup database to hold the tables which were unused for 2 to 3 months and delete from the main database.so that you can able to achive the space in the frequently used database.
Here, Wasted time space will be released or permanently occupied?
Never Again “No More Room In Database”. I’ll Show You How!
By Roland Wenzlofsky
With the Teradata Version 16.00, some exciting features in Space Management have been introduced, which can bring enormous improvement in the daily activities in the administration and loading of the data warehouse.
In my current environment, it regularly happens that the data warehouse’s daily loading is interrupted because there is not enough permanent space available in the databases.
As we all know, the maximum available space is defined when a database is created. Here is the syntax to create a database with 80 GB perm space:
CREATE DATABASE Customer AS PERM = 800000000000;
The entire available space is then evenly allocated to all AMPs. For simplicity’s sake, we assume 8 AMPs. In this case, each AMP has 10GB of permanent space available.
Limits for Skewed Tables
This even distribution of the available PermSpace to all AMPs is based on the assumption that all tables’ rows are distributed evenly using the primary index. But what happens if this is not the case?
Let’s assume that we want to load a table with 11GB of data, and the designer of the table structure has chosen the Primary Index so clumsy that all rows are assigned to precisely one AMP. Since the space limit on each AMP is 10GB,
we will receive the following error message:
2644: No more room in database Customer.
This means that although the remaining 7 AMPs each have 10GB available, the table cannot be loaded.
The maximum available space in a database is shown in table DBC.DATABASESPACE in the MaxPermSpace column. The currently occupied space can be seen in Column CurrentPermSpace. In CurrentPermSpace, however, only the entire occupied space of the database is displayed, not the occupied space per AMP.
I’ve often seen surprised faces of developers who were astonished that there was enough space (MaxPermSpace – CurrentPermSpace), the error message “2644: No more room in database Customer” appeared.
To reduce or completely prevent such problems, Teradata 16.00 offers the possibility to define the available space globally.
Therefore the new DBC Table GlobalDBSpace and an extended syntax for creating a database were introduced:
CREATE DATABASE Customer AS PERM = 800000000000 SKEW = 10 PERCENT;
The 10 PERCENT Skew given when creating the database means the following:
The total PermSpace available is still 80GB. Nothing’s going to change that. However, each of the eight available AMPs can hold up to 11GB of data if it does not exceed the absolute upper limit of 80GB of the database.
In our example from above, in which the primary index’s clumsy selection would insert all rows on exactly one AMP, the error “2644 No more room in database Customer” would no longer occur. However, such a situation is recorded in the Software Event Log.
While the feature described above simplifies the handling of skew tables, another feature was introduced with Teradata 16.00, which has the purpose of preventing loads from crashing if not enough database space has been defined:
Global Space Soft Limit.
This is defined via DBSControl GlobalSPaceSoftLimit and specified as a percentage.
In principle, a percentage is defined here above which the defined PermSpace may be exceeded without the error “2644 No more room in database Customer” occurring.
For example, if the database is defined on an 8 AMP system with 80GB PermSpace, and a soft limit of 10%, up to 11GB PermSpace can be used per AMP.
Again, an event is triggered and written to the Software Event Log. This allows database administrators to analyze the situation afterward and take appropriate action.
Teradata DBA
This blog is related to Teradata Database Admin
Thursday, February 9, 2017
How To TeraData: CLI error: MTDP: EM_NOHOST(224): name not in HOSTS file or names database.
CLI error: MTDP: EM_NOHOST(224): name not in HOSTS file or names database.
Edit the file C:/WINDOWS/SYSTEM32/DRIVERS/ETC/HOSTS
Edit the following line as:-
127.0.0.1 localhost dbccop1
Close Bteq/Bteqwin and retry.
In the tdpid,after cop it should be 1 as you are using on a local machine and there is only one RDBMS and before cop it should be dbc as you can verify your i_dbcpath variable value from C:\Program Files\Teradata\Client\13.0\CLIv2\clispb.dat.
mload lock occurs when the mload statements continously locks the table for writing something without getting committed. In this case, the database administrator duty is to release the locked table. After releasing the mload lock, Care should be taken to drop the work tables, Log tables and error tables created during mloads. We can release the mload lock using the below sql statement
SQL to release Mload lock
Teradata always refers the tablename with the two part name. You can replace the databasename and tablename with your tablename and databasename.
Teradata Error 2571
when you try to release the MLoad lock you may get the error 2571, This is because either the table is not present or you do not have privileges to release mload lock
There are four things which can cause a 2631 error:
1) A true locking deadlock.
2) A very congested system.
3) The number of transactions exceeding the machine capacity, e.g. the lock table is full.
4) A database software bug.
We will analyze the above
case #1 and #2 in detail and very briefly talk about case #3.
We will only enter case #4 whenever there is a specific problem found.
When there is a real deadlock detected in the system, a 2631 error is returned to the application. Please refer to TTIP 141 (a link is provided under Additional Information/Comments section of this article) for an understanding of the various specific deadlock situations. There is a deadlock time interval setting in the DBS GDO which can be set through the DBSControl utility. The IFP/dispatcher uses this time interval to collect the deadlock information from AMPs. The valid range of this timer is 0 to 3600 seconds and the default value is 240 seconds (4 minutes). Due to the faster CPUs, the system overhead for doing the deadlock checks is significantly reduced. The 240 second default dates back many years and reflects hardware performance that is not typical today. Most sites, therefore, should consider selecting a shorter time interval to i) break the deadlock faster, ii) get the response back to the user sooner and iii) release both the victim transaction and the other blocked transactions which can then continue to complete. In particular, if the workload contains any amount of update operations or utility operations such as Mload or Fastload that are performed concurrently, this time interval should be set to a shorter one.
For an environment which has few database deadlocks, changing to a shorter timer interval has no benefit.
In summary, the optimal time interval (deadlock detection timer) may be between 30 to 45 seconds but can be as low as 15 or even 10 seconds in an environment which has many true deadlocks.
From the initial release of Version 2, until DR 67117 was implemented (see below), this case was to be diagnosed as follows: when a 2631 error code is returned to the application/tools/users and there is a 3111 error at the same time in the stream error log file, the system may either be very congested or has some hardware problem, but it is not a deadlock problem. In the DBS software, there is another hard coded transaction hang timer (4 minutes). The IFP/dispatcher uses this time interval to collect the transaction status (working, blocked, idle) from AMPs. If a dispatcher task finds that a particular transaction which is supposed to be in progress on the AMPs but does not get any CPU time on any AMP for some substantial amount of time (at least 8 minutes in round figures) and the transaction is not blocked by a lock on any AMP, an error code 2631/3111 will occur. There may be nothing wrong with the transaction request. It usually means that a transaction is starved for the CPU processing time and has been aborted. If this is the case, simply retry the request. It may work fine if there are no hardware problems.
With DR 67117, the 3111 logic was altered to not abort a transaction if it is waiting for AWTs (AMP Worker Tasks). This can happen in a congested system where all the AWTs are already busy, meaning that none can be assigned to do the work of this transaction. With this DR, the philosophy was changed to taking the position that there is nothing wrong with such a transaction, so it is not to be aborted. If the condition of a transaction not getting CPU time persists, it may be that there is at least one transaction running which is «bad» in the sense that it is not releasing AWTs as quickly as it might. Data skewing can cause this. It may also be that there are simply more requests than the system can handle. These cases require manual investigation. There may also be some software bugs or hardware problems. Again, manual investigation is required.
DR 67117 was implemented at versions TDBMS_4.1.3.53, TDBMS_5.0.0.15, and TDBMS_5.1.0.0. DRs 82484 and 84107 are refinements to DR 67117, changing how message queues are examined for the presence of messages. They were shipped with TDBMS_5.1.0.0 and TDBMS_6.0.0.0.
DR 96783 recognized a situation that can occur on large and busy systems. There are requests that call for AWTs to become active on mulitple AMPs to service a transaction. While these are delivered simultaneously, the PDE layer can reorder their delivery. Imagine a system that is so busy that every AMP has only one AWT available for new work. Two transactions generate requests for AWTs on every AMP at the same time. If all the AMPs get request one first, it runs and request two waits. If some AMPs get request one first and others get request two first, then neither transaction gets the full set of AWTs it requires and both must wait. Normally the situation clears as older work is finished. But sometimes it does not clear. Now DR 67117 works against us, as a transaction waiting for AWTs will not time out. DR 96783 allows for DR 67117 / 82484 / 84107 to be nullified on those systems where this is desireable, by the setting of the old DBSControl flag DisableMsgWaitBlock. By default, DisableMsgWaitBlock is FALSE. This enables both DR 82484 and DR 84107 and transactions waiting for AWTs will not time out. If DisableMsgWaitBlock is TRUE, then the global deadlock detector (acmgdead) will treat those transactions as idle and mark them to abort with 3111 error.
DO NOT change DisableMsgWaitBlock without consultation with the GSC. As should be obvious, this situation is extremely complex and one fix does not suit all.
On a given AMP if there are already 30 AMP threads waiting for locks to be granted, and the 31st task requests a lock, the following error message will be issued:
«2971: The AMP Lock table has overflowed».
The request fails and must then be re-submitted.
TTIP 141: Living Document on Locks and Deadlocks
Within the code, the constant SYSTRANTIMEOUT is set to the transaction or Dispatcher timeout value. This value is set to 240 seconds or 4-minutes. This value is not configurable.
No more room in database
Error 2644 No more room in database. This error rarely occurs when teradata database has not have enough space to execute the DDL or DML commands
To resolve this error the Teradata DBA has to check the space available in the Database, He may need to increase the space to get rid of this error. Space represents three space avilable for executing a command. Let us see the three spaces in detail
Permanent space is a space where the teradata objects resides, objects such as Database, users, Tables, Stored procedures, macros etc. This space is shortly called as PERM space. This space is commonly distributed across all AMPs. Take for example, You have 400 Gb of PERM space in your teradata, and if the space limitation is reached. you will get this Error «No more room in database». You have to contact your Teradata DBA to increase the PERM space.
Whatever query executed in Teradata databases will be stored in this SPOOL Space. Teradata? will keep the conditional query result in this Spool space for further utilization. If you do not have enough spool space in teredata, then you will get the Error «No more room in database»
This space will be allocated for the Global Temporary tables available or created in the Teradata database. This space will be maintained to the user until the session end or closed. PERM space is not slloted for these Temporar Tables. If your Procedure or Your SQL Query processes the Temporary tables that are of more spaces that exceeds the TEMP space you would probably get this error «No more room in database»
If you have enough spaces in these three SPACEs, then you would not get this error. Else you will get the above listed error. DBAs has to increase and maintain these spaces to avoid this error
Hence it is better to go for
Note two important aspects of this last point. Spool space is allocated to a user, not a session. If multiple people sign on using the same User Id, the last request may run out of spool space because of an excessive request of another session using the same User Id. The second point is that, should a user exhaust spool on a single AMP, they will encounter this error. This is often a more frequent issue caused by an extremely skewed request.
The first thing to check is what the user’s spool limit is:
SELECT SUM(MaxSpool)
FROM DBC.DiskSpace
WHERE DatabaseName = ‘ ‘;
Where: is the xxxx in the error message.
As a quick fix, you might want to simply increase the spool limit:
MODIFY USER AS SPOOL = xxxxx BYTES;
If this is not feasible or does not resolve the problem, you should check to see if the request is extremely skewed with the following query:
If the «SkewFactor» is several thousand or more, try to identify the responsible query. If the volume of data associated with the underlying tables has recently changed, this may be an indication of «stale statistics». You may want to recollect statistics to eliminate this possibility. If this doesn’t do the trick, the Teradata Performance Management Manual provide detailed information on how to analyze the execution plan for a given query.
If you believe that the execution plan is in error, the GSC will require TSET (Teradata System Emulation Tool) data to pursue analysis.
If you are using VARTEXT format for the input file, all the fields in the USING clause
should be declared as VARCHAR, with the max allowable length. You may need to use explicit
FORMAT, CAST, etc. to control how Teradata will convert the strings to the appropriate data
types, if the default isn’t suitable.
But as written, your character field would be loaded with an empty string and padded
with spaces. You can translate empty string:
CASE WHEN :String = » THEN NULL ELSE :String END
Or if an empty string/spaces is a valid value then use COALESCE or CASE on the EXPORT
to set the string to some special «flag» value (like ‘?’).
I am receiving below error when trying to run script.
*** Growing Buffer to 12337
*** Error: Import data size does not agree with byte length.
The cause may be:
1) IMPORT DATA vs. IMPORT REPORT
2) incorrect incoming data
3) import file has reached end-of-file.
*** Warning: Out of data.
Your input file is not in «fastload format» so you can’t use IMPORT DATA, and your USING clause needs to describe the input datatype (which appears to be CHAR) rather than the target table datatype.
According to manual
——————-
If DATA or INDICDATA is specified, BTEQ expects the incoming data to be
in FastLoad format, such as that produced by a BTEQ EXPORT DATA or BTEQ
EXPORT INDICDATA command, or by FastExport.
Use vartext with some delimiter see sample
*** BTEQ script start ***
.LOGON UID,PWD;
database DB;
.SET ECHOREQ off
.defaults
.set errorout stderr;
.import vartext ‘,’ file = Test.dat
.quiet on
.repeat*
using emp (VarChar(4))
insert into dev_edw.test_import (emp) values (:emp);
quit;
*** BTEQ script end ***
*** Data file start ***
1001
1002
1003
1004
1005
*** Data file end ***
*** Data file start ***
1001,Teradata
1002,DB2
1003,Oracle
1004,SQL server
1005,Sybase
*** Data file end ***
The error was reported was
«3055:Logons are only enabled for user DBC».
This normally happens after some maintenance work or after up-gradation/migration of database or may be database administrator intentionally put restriction.
To sort this issue out, below steps can be followed:
1. Login to the node
2. type command «cnsterm 6» and press enter
3. in supervisor command prompt, type «enable all logons» and press enter.
Input Supervisor Command:
> enable all logons
enable all logons
12/10/26 03:17:47 Logons enabled.
Enable Logons of screen debug in ctl have been updated to All.
When a user try to select record from the view this error would normally occur. The reason is that particular user has select access to the view but the view database has no select access to the table database. While granting select access to the user for the view, we need to grant select access to table for the view database with grant option.
Take for example, we have a database called CUSTOMER_TBLS that has customer Tables and we have another database called CUSTOMER_TBLSV which has the views. Now we are granting access to a user ‘TDUSER’ to a view database ‘CUSTOMER_TBLSV’. This time user TDUSER has access to CUSTOMER_TBLSV and CUSTOMER_TBLSV does not have select access to CUSTOMER_TBLS.
Access script should be in the same way that i have described below;
GRANT SELECT ON CUSTOMER_TBLS TO CUSTOMER_TBLSV WITH GRANT OPTION;
GRANT SELECT ON CUSTOMER_TBLSV TO TDUSER;
If we give the access permission in this way we can get rid of the error message «An owner referenced by user does not have SELECT WITH GRANT OPTION».
User must have Granted access to Grant the permission to the database objects in Teradata. Always check for access to the referenced objects and then grant access to the direct objects. The scenario would be applied to stored procedures also. if the stored procedures are in one database and the table and view are in another then we have to first grant access to stored procedure database to access view and table database, then finally we can grant access to user for the stored procedure database.
To grant access to other users to CREATE Table on a Teradata Database, The concerned DBA must have the CREATE Table permission with GRANT option. Grant Option is required to Grant permission to other users.
In Teradata, If you are granting any access to users, you must have the Grant option for the access you have, Using that you can Grant access to other developers or users in Teradata system.
To Grant access to CREATE Table with Grant option, Please use the below Teradata SQL.
GRANT CREATE TABLE ON dbname TO dbuser WITH GRANT OPTION;
This error shows up when restore of table is failed in middle, and user tries to select from this table.
3668: A table listed in the Dictionary is not present.
Solution would be to drop the table and recreate/restore/copy with latest backup.
The positional assignment list has too few values
Failure 3812: The positional assignment list has too few values
Reason for this error is mainly because of not supplying a value for any one of the Parameter in the Teradata Stored Procedure. For Example, there is a Procedure which has two parameter; one is input parameter and the another one is output parameter. If you fail to pass the value for the output parameter you would get this error message in Teradata. Let us see this in detail with a simple Stored Procedure.
CREATE PROCEDURE TEST.GETNAME
(
IN ID INTEGER
, OUT NAME VARCHAR(100)
)
BEGIN
INSERT INTO TEST.STOREID(SID)
VAUES(ID);
SELECT TOP 1 SName INTO Name
FROM TEST.STORENAME;
END
We can call this stored procedure with the following Teradata SQL
When you call the Procedure using this command you would get the error with the message «The positional assignment list has too few values». Output parameter has no value in the Procedural Call. It can be corrected as;
CALL TEST.GETNAME(1, NAME);
— See more at: http://dotnetbites.com/the-positional-assignment-list-has-too-few-values#sthash.3ItDXpwg.dpuf
Explanation: During the creation of a UDF/XSP/UDM/UDT/JAR, a problem was found in accessing the external files.
Generated By: CUFTsk
For Whom: UDF/UDT/XSP developer
Remedy: Check the files exist in the directory specified. Check the read permissions of the files. Check the spelling of the supplied directory and external file names.
Problem Description: SELECT Failed. 6706: The string contains an untranslatable character
This error usually comes when a junk character come across when selecting from column of a table using some function like cast (),
Select Prop_Name,cast(coalesce(Prop_DSC,») as char(400) ) from P_PROPERTY. PROPTYPE ;
Problem seems to be with data in column «Prop_DSC» in P_PROPERTY. PROPTYPE table. column character set is LATIN.
Problem Solution: Please use translate_chk function to determine untranslatable column values that are causing this issue
No more room in database teradata что значит
Check Database Space:
CAST ( SUM (MaxPerm)/1024/1024/1024 as DECIMAL (6,0)) as MaxPerm_GB,
CAST ( SUM (CurrentPerm)/1024/1024/1024 as DECIMAL (6,0)) Currentperm_GB,
CAST ( SUM (PeakPerm)/1024/1024/1024 as DECIMAL (6,0)) Peakperm_GB,
where DatabaseName= ‘PRGROCERY’
We can see there is lots of space available in the database lets check the database space per amp.
Check Database Space per AMP:
CAST (CurrentPerm/1024/1024/1024 as DECIMAL (6,0)) Currentperm_GB,
CAST (MaxPerm/1024/1024/1024 as DECIMAL (6,0)) as MaxPerm_GB
Space is managed on a «per-AMP» basis. If one AMP is out of space, the database is full. We can see AMP 28 is full therefore we are getting Failure 2644: No more room in database. Cause of this is Skew Factor table that can take more space than its size.
Check Actual space, WastedSpace and SkewFactor of all tables in PRGROCERY database :
SELECT DatabaseName, TableName
, SUM (CurrentPerm) /1024**3 AS ActualSpaceGB
, MAX (CurrentPerm)*( HASHAMP ()+1) /1024**3 as EffectiveSpaceGB
,EffectiveSpaceGB-ActualSpaceGB AS WasteSpaceGB
,100*((EffectiveSpaceGB-ActualSpaceGB)/ EffectiveSpaceGB) AS «WasteSpace%»