Create Cache to warm up cube

Hi all:
I recently realized the Cube Cache did help the performance quite a bit ... Questions:
1. How long can these cache last? Everyday, I will process update on all dimensions and process full on currentYear partitions,
will cube cache disappear?
2. Can I use olapquerylog table to capture query usage frequency by users ? what's the relationship between aggregations and cache? I was under the impression that more aggregation will also boost performance
3. In the olayqueylog table, the column dataset contains a bunch of 0 and 1, where can I find the mapping info? also the MSOLAP_ObjectPath shows xxxxxx.xxx.xxx.Fact Order or xxxxxx.xxx.xxx.Fact Order 1, I know it's referring to Measure groups
and currently I only have two measure groups which is easy to tell. But if I got more than 2 measures groups, this naming is goint to be a trouble, anyway to change it?
Thanks
hui
--Currently using Reporting Service 2000; Visual Studio .NET 2003; Visual Source Safe SSIS 2008 SSAS 2008, SVN --

As per my understanding, the cache will always exist until you restart the Analysis Services or clear the clear the cache manually. you can refer to the useful links.
http://technet.microsoft.com/en-us/library/hh230974.aspx
http://www.ssas-info.com/analysis-services-faq/27-mdx/133-mdx-how-do-i-clear-analysis-services-ssas-database-cache
Besides, it seems that you can looking way to improve the query performance. The links below might help for you.
http://blogs.msdn.com/b/azazr/archive/2008/05/01/ways-of-improving-mdx-performance-and-improvements-with-mdx-in-katmai-sql-2008.aspx
http://technet.microsoft.com/en-us/library/cc966527.aspx

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Error in creating Cache Group

Hi,
When i tried to create cache group i am getting below error
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FROM myuser.customer
(cust_num NUMBER(6) NOT NULL,
region VARCHAR2(10),
name VARCHAR2(50),
address VARCHAR2(100),
PRIMARY KEY(cust_num)),
myuser.orders
(ord_num NUMBER(10) NOT NULL,
cust_num NUMBER(6) NOT NULL,
when_placed DATE NOT NULL,
when_shipped DATE NOT NULL,
PRIMARY KEY(ord_num),
FOREIGN KEY(cust_num) REFERENCES myuser.customer(cust_num)) ;
5220: Permanent Oracle connection failure error in OCIServerAttach(): ORA-12154: TNS:could not resolve the connect identifier specified rc = -1
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But my Oracle database Name is MYdatabase
Oracle LSNRCTL
LSNRCTL> status
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1522)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 11.2.0.2.0 - Production
Start Date 07-AUG-2012 10:31:38
Uptime 4 days 3 hr. 1 min. 55 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File C:\TimesTen11.2.2\listener.ora
Listener Log File E:\app\XXXXXXX\diag\tnslsnr\localhost\listener\alert\log.xml
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(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1522ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1522)))
Services Summary...
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Instance "MYdatabase", status READY, has 1 handler(s) for this service...
Service "MYdatabase" has 1 instance(s).
Instance "MYdatabase", status READY, has 1 handler(s) for this service...
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The command completed successfully
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Thanks!

You should create the cache groups by using cachadmin user, not use object owner user.
In Oracle DB:
SQL> @grantCacheAdminPrivileges "cacheadmin"
Please enter the administrator user id
The value chosen for administrator user id is cacheadmin
***************** Initialization for cache admin begins ******************
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1. Granting the TT_CACHE_ADMIN_ROLE to CACHEADMIN
2. Granting the DBMS_LOCK package privilege to CACHEADMIN
3. Granting the RESOURCE privilege to CACHEADMIN
4. Granting the CREATE PROCEDURE privilege to CACHEADMIN
5. Granting the CREATE ANY TRIGGER privilege to CACHEADMIN
6. Granting the DBMS_LOB package privilege to CACHEADMIN
7. Granting the SELECT on SYS.ALL_OBJECTS privilege to CACHEADMIN
8. Granting the SELECT on SYS.ALL_SYNONYMS privilege to CACHEADMIN
9. Checking if the cache administrator user has permissions on the default
tablespace
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11. Granting the CREATE ANY TYPE privilege to CACHEADMIN
********* Initialization for cache admin user done successfully *********
SQL>In TimesTen:
Command> CREATE USER cacheadmin IDENTIFIED BY oracle;
User created.
Command> GRANT CREATE SESSION, CACHE_MANAGER, CREATE ANY TABLE, DROP ANY TABLE TO cacheadmin;
Command>
Command> CREATE USER oratt IDENTIFIED BY oracle;
User created.
Command> grant create session to oratt;
Command>
[oracle@tt1 ~]$ ttIsql "DSN=db_cache;UID=cacheadmin;PWD=oracle;OraclePWD=oracle"
Copyright (c) 1996-2010, Oracle. All rights reserved.
Type ? or "help" for help, type "exit" to quit ttIsql.
connect "DSN=db_cache;UID=cacheadmin;PWD=oracle;OraclePWD=oracle";
Connection successful: DSN=db_cache;UID=cacheadmin;DataStore=/u01/app/oracle/datastore/db_cache;DatabaseCharacterSet=AL32UTF8;ConnectionCharacterSet=US7ASCII;DRIVER=/u01/app/oracle/product/11.2.1/TimesTen/tt1/lib/libtten.so;PermSize=100;TempSize=32;TypeMode=0;CacheGridEnable=0;OracleNetServiceName=ORCL;
(Default setting AutoCommit=1)
Command> call ttCacheUidPwdSet('cacheadmin','oracle');
Command>
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       >        b VARCHAR2(100) );
Command> Additionally dont forget to issue the grants for cacheadmin user in Oracle DB
SQL> GRANT SELECT ON readtab TO cacheadmin;
Grant succeeded.Regards,
Gennady

Problem creating cache group for a table with data type varchar2(1800 CHAR)

Hi,
I am using TimesTen 7.0 with Oracle 10.2.0.4 server. While creating Cache Group for one of my table I'm getting the following error.
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The command failed.
One of my filed type in oracle table is Varchar2(1800 CHAR). If I change the filed size to <=1000 it (E.g. Varchar2(1000 CHAR)) then the Create Cache command works fine.
MyDatabase Character Set is UTF8.
Is it possible to solve without changing the filed size in the Oracle Table?
Request your help on this.
Thanks,
Sunil

Hi Chris.
The TimesTen server and the Oracle Client is installed on a 32-bit system.
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TimesTen Release 7.0.5.0.0 (32 bit Linux/x86) (timesten122:17000) 2008-04-04T00:09:04Z
Instance admin: root
Instance home directory: /appl/TimesTen/timesten122
Daemon home directory: /var/TimesTen/timesten122
Access control enabled.
2. Oracle DB details
SQL> select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - 64bi
PL/SQL Release 10.2.0.3.0 - Production
CORE 10.2.0.3.0 Production
TNS for Linux: Version 10.2.0.3.0 - Production
NLSRTL Version 10.2.0.3.0 - Production
Oracle Client - Oracle Client 10.2.0.4 running in a 32 bit Linux/x86
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Driver=/appl/TimesTen/timesten122/lib/libtten.so
DataStore=/var/TimesTen/data
PermSize=1700
TempSize=244
PassThrough=2
UID=testuser
OracleId=oraclenetservice
OraclePwd=testpwd
DatabaseCharacterSet=UTF8
Thanks,
Sunil

How to Create Process Chain for Remote Cube.

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EJB CMP remove create cache issue? DuplicateKeyException
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Creating cache for multiple property files run time/dynamically.

Hi,
I have a requirement, where in I need to create cache for each property file present in a folder at server side or in the lib or resources directory. Please help me how I can do this?
Thanks.

ok thank you.
I follwed this method implementation:
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Integration Builder - runtime data cache - Error when creating cache list

All,
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Hi,
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Thanks
Edited by: user98631 on 12 mars 2010 05:13

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thanks in advance

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Hi,
I am trying to create cache groups on SQL developer in TimesTen Cache DB. I have connected to the CacheDB using schema owner/password (say HR/HR). While creating a cache group, I am required to set cache administrator, which in turn requires this user (that is the schema user) to have the CACHE_MANAGER permission.
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As per the documentation, no such requirement has been mentioned, which means I am probably missing a step in between.
Also, if I connect to the DB via Cache Manager user (cacheuser/timesten with oracle as ORA pwd), I don't see the HR schema tables while creating a cache group.
Could someone clarify this?
Thanks in advance!
Regards,
Silky
Applications Engineer
Oracle India Pvt. Ltd.

A cache admin user require CACHE_MANAGER privilege to do all cache operation. It has been documented here
http://docs.oracle.com/cd/E21901_01/doc/timesten.1122/e21634/prereqs.htm#CHDJBIAE
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Hi All,
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Thanks.

Hi 928879,
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Hi Jonathan,
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Create Cache to warm up cube

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