Intermedia queries..

i would like to know, if any solution for this...
A. When interMedia process runs at background, it requries user name and password, and the username and password will be shown in background process when you use ps command. This could be a security problem since interMedia admin user has certain system privilege.
B. There is no good monitor tools and logs for interMedia. I had a couple time the interMedia process went to south without any error message and logs. If you want to monitor if the interMedia process is still running, you have to create your own tool to monitor the process.
thanks,
Manish.

Need more info - please supply version/platform information, and interMedia components used.

Similar Messages

Tuning Simple Intermedia Queries

I am comparing the performance of doing a text search with
standard sql and Oracle Intermedia.
I have a table with a text column NARRLONG, defined as below:
Name Null? Type
NARRPREFIX NOT NULL VARCHAR2(2)
NARRKEY NOT NULL VARCHAR2(240)
NARRLANG NOT NULL VARCHAR2(2)
NARRSEQ NOT NULL VARCHAR2(5)
NARRLSEQ VARCHAR2(5)
NARRCHADTE DATE
NARRFLAG CHAR(1)
NARRLONG VARCHAR2
(1260)
The table has a primary key on NARRPREFIX, NARRKEY, NARRLANG,
NARRSEQ and a text index on NARRLONG.
When I run the query:
select count(*) from maa240 where narrprefix = 'BA'
and narrkey like '000010000100001C%'
and (upper(narrlong) like ('%VDU%')
or upper(narrlong) like ('%INPUT%'))
I get 273 rows returned in approx. 16 secs.
When I run the query;
Oracle 8.1.7 > cat andy2.sql
select count(*) from maa240
where contains (narrlong, '(%VDU%) OR (%INPUT%)') > 0
and narrprefix = 'BA'
and narrkey like '000010000100001C%'
I get 273 rows returned in approx. 3 minutes.
Analyzing the table made no difference.
Can anyone point me in the right direction for tuning this
query ?
Thanks
Andy Lamberth
OCP DBA

I believe that the problem revolves around the way that
intermedia text now works. The contains search returns rowids
which are then accessed as necessary. In your example I suspect
that a very large number of rows match the criteria that you
have specified. Each row will then be read to check the other
(non-IM) criteria before giving you the results.
By contrast your non-IM query may well be just accessing an
ordinary index based on most/all of your criteria and therefore
reading comparitively few rows.
To confirm this either just run the IM query to get a count on
the number of rows it finds as matches or use tkprof to examine
trace files.
We use a large number of IM indexes and have found that queries
matching a large number of rows on an individual IM index
perform poorly. By contrast when there are (relatively) few
matches performance is certainly superior to ordinary indexes.

8i intermedia ORA-03113 ORA-07445 CTX$N

We get the occasional ORA-03113 end of file communication error along with a trace file with ORA-07445. On looking at the CTX$N - described as the negative list table I found it had quite a few entries (nearly 10,000). When I rebuilt the index the problem went away and the CTX$N table was empty. Clearly it gets written to during the course of time. Does anyone know any details or have any suggestions as to if/when large numbers of entries might cause this sort of failure.

In the last couple of days we have started seeing ORA-03113 on some interMedia queries that lead me to think we're running into bug 1517789 (8.1.7.0.0 on NT4WSSP6a). The bug is supposed to be taken care of in the 8.1.7.1b patchset, but I haven't yet found the patch for NT. Does anybody have more information or a link to the patch?
Interestingly, the number of rows in the table (in the hundreds), rows in the DR$ tables (a few thousand), and number of hits (hundreds) are small. It does respond to the "well, don't do that" workarounds mentioned in the bug discussion, though--changing the contains from '%' to a couple of characters preceeding the '%'.
Any information appreciated

ORA-21779: duration not active

Guys, it looks like nobody knows much about this error and Oracle support is no help.
The problem seem to be machine/environment specific.
We get this exception consistently on some of the oracle/intermedia queries on two out of six identical environments. The queries are run from a servlet, only number and varchar2 fields used, no LOBs.
The configuration across all the environments:
WL 8.1
Oracle 9.2.0.7.0
Oracle JDBC 9.2.0.5
Some online sources mention that the ORA-21779 error is fixed by some Oracle patch sets, but we've done a cumulative update a couple of weeks ago, maybe someone knows a specific patch or the reason for the problem?
Thanks,
Vitaly

chernovtsy wrote:
Here's the relevant part of the trace, thanks!
java.sql.SQLException: ORA-21779: duration not active
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:582)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1986)
at oracle.jdbc.ttc7.TTC7Protocol.fetch(TTC7Protocol.java:1253)
at oracle.jdbc.driver.OracleResultSetImpl.next(OracleResultSetImpl.java:295)
at com.skila.search.AsynSearchProcessor.getRecordPriority(AsynSearchProcessor.java:747)
at com.skila.search.AsynSearchProcessor.iteratorResulSet(AsynSearchProcessor.java:790)
at com.skila.search.AsynSearchProcessor.fetchByDate(AsynSearchProcessor.java:311)
at com.skila.search.AsynSearchProcessor.getSearchResults(AsynSearchProcessor.java:1069)
at com.skila.search.SearchServlet.doPost(SearchServlet.java:293)
at com.skila.reddog.common.AbstractSkilaServlet.processRequest(AbstractSkilaServlet.java:182)
at com.skila.reddog.common.AbstractSkilaServlet.service(AbstractSkilaServlet.java:160)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)That looks like an ancient version of the driver... Ca you try repeating this with the
latest 10g (10.2) driver? How easily/regularly can you repeat this? Is there anything
fancy about your JDBC code? Can I see it? One main problem people have with
JDBC in servlets is not making all JDBC objects method-level objects, and therefore
risking non-threadsafety.
Regardless, have you shown Oracle support a full JDBC stacktrace of the exception?
thanks
Joe
PS: is there any WebLogic code in the picture? It seems you're making
direct JDBC connections...
Joe

Distributed Queries w/interMedia

Does interMedia support simple distributed queries such as the following:
select doc_id from doc_table@dblink where contains(text,'November',0)>0;
null

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Paul Dixon ([email protected]):
This does not work so far in >= 8i.<HR></BLOCKQUOTE>
I finally figured this one out. Add @dblink between "contains" and the "(". Works fine like this against 8.1.7.
null

The 'Contain' Queries on Intermedia ORDDOC fails

Hi
We are using Intemedia to Manage multimedia content. We store a lot of document using OrdDoc.
We were able to index the content using
"create index contentstoreindex on CONTENTSTORE(CNTSTR_FILE.Comments) indextype is ctxsys.context "
Now we have put some documents, the select statement does not return any rows.
SELECT SCORE(1), CNTSTR_SUBJECT
FROM CONTENTSTORE WHERE CONTAINS(CNTSTR_FILE.Comments, 'test', 1) > 0;
No error, no rows fetched.
(There are 10 documents containing the string test in the database.
Can some one please help on what is wrong, what else we need to do.
Thanks

Some more info, when I changed my indexing method following is the dump.
SQL> create index contentstoreindex on CONTENTSTORE(CNTSTR_FILE.Comments)
2 indextype is ctxsys.context
3 parameters ('filter ctxsys.inso_filter');
Index created.
SQL> SELECT SCORE(1), CNTSTR_SUBJECT, CNTSTR_OID
2 FROM CONTENTSTORE
3 WHERE CONTAINS(CNTSTR_FILE.Comments, 'Test', 1) > 0 ;
WHERE CONTAINS(CNTSTR_FILE.Comments, 'Test', 1) > 0
ERROR at line 3:
ORA-00904: invalid column name

Oracle8i InterMedia/ConTex queries fail

So I've been fighting with ConText for days now and I finally
persuaded it to create indexes. I was very happy for about
thirty seconds...then I tried a "contains" query. It failed
with a VERY annoying error message. The full text of my sqlplus
session is below the '---' line.
To sum up, the query fails, complaining that CTXSYS.DR_REWRITE
must be declared. No such object exists in my database. At the
OS level, I cd'd to $ORACLE_HOME/ctx and typed:
find . -type f -exec grep -ic dr_rewrite {} \; -print | grep -v
'^[0-9]*$'
That command searched every normal file under ctx for the string
dr_rewrite, case insensitively. Guess what? The string never
occurs in any file! 8(
After that, I cd'd to plain old $ORACLE_HOME and ran the same
command again. The string was found in the oracle binary and
in libserver8.a, but nowhere else.
Any advice?
------------------- session output------------------------
Oracle8i Enterprise Edition Release 8.1.5.0.1 - Production
With the Partitioning and Java options
PL/SQL Release 8.1.5.0.0 - Production
SQL> drop index foo;
Index dropped.
SQL> create index foo on contact(notes) indextype is
ctxsys.context;
Index created.
SQL> select notes from contact;
NOTES
testing now
SQL> select score(1) blah from contact
2 where contains(notes, 'test', 1) > 0;
select score(1) blah from contact
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-06550: line 1, column 7:
PLS-00201: identifier 'CTXSYS.DR_REWRITE' must be declared
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
SQL> desc ctxsys.dr_rewrite
ERROR:
ORA-04043: object ctxsys.dr_rewrite does not exist
SQL> connect ctxsys/ctxsys
Connected.
SQL> desc dr_rewrite
ERROR:
ORA-04043: object dr_rewrite does not exist
null

Robert Cordingley (guest) wrote:
: ORA-04043: object dr_rewrite does not exist
I've got exactly the same. Uncomment text_enable in int.ora, and
it works with 8.1.5
I do something like:
select quick_id from quick where contains(text, 'cat')>0;
and get results.
CU
Kai
null

Content based retrival in intermedia

If I have human bodies stored in intermedia. Like for each person one image of his body. Can I go and run a query show me all those bodies that have a particular kind of dot in the body[the real images are more complicated than this we are storing hearts, lungs etc]. I want to do kind of do ultra search like show me all resume with "oracle" keyword - the way we do in oracletext.
What I know, it can be done if I include it as an additional column in the table storing the image column. But here we do not know what a user will search so really i should be able to search on the content of the image.
Also, can I store word or pdf files in Intermedia and do search on their contents or do I need Oracletext for this functionality. I want to save these files in database and allow query on its content.
Please answer these questions as my project is highly classified and we should be able to do all of the above else we need to change our approach to see what we can and what we can not.
Thanks.

The content based image query capabilitys work on
. Color
. Texture
. Shape
So, you can search on images that have similar colors, or similar textures (like a plaid versus a paisly), or similar shapes (circle, square etc.) or a combination of the above. It cannot do things like return me the pictures of cars, or return me the pictures with 10 dots on a body. So far, this has been used for fabric, wall paper etc... finding and searching (find me a fabric with a similar pattern and different colors, or similar colors and different patterns).
I don't know what kind of "dot" you are looking for, but if you have pictures of the dots and want to compare the shape of the dots, we might be able to do that, but I am not sure if the results will be what you need or not.
If you have a picture of the body, and expect interMedia to focus on the dots, I really don't think there is any way that would work. But if you have pictures of just the dots, and you are comparing the shapes of dots, it might work.
The only way you will know for sure is to try it out. Without knowing exactly what you are doing, I am a little septical it will be what you need. I am thinking forensic
As for the search capabilities, you do need Oracle Text to be able to do the text based ("contains") queries.

Queries with CTXRULE Index

I am trying to build an alerting application when, on receipt of a new XML document, user's are alerted if the document matches one or more of the profiles that they have defined. I have created a CTXRULE index that does this but only with very simple profiles. For example ABOUT(soccer), which is the example in the Text documentation.
Is it possible to create more complex queries, for example using WITHIN to only match within defined elements of the XML document. Are there any good example?
Thanks
Martin Haigh

Please ask questions on Oracle Text (formerly InterMedia text) in the Oracle Text forum, you will get a quicker, more expert answer there.

Creating intermedia text index error

Hello. I tried creating an index using the below command
create index mydocs_text_index on
mydocs(thefile) indextype is ctxsys.context;
However, I received some error message as follows:
ERROR at line 1:
ORA-29855: error occurred in the execution of ODCIINDEXCREATE routine
ORA-20000: file not found
DRG-50704: file not found
ORA-28575: unable to open RPC connection to external procedure agent
ORA-06512: at "CTXSYS.DRUE", line 126
ORA-06512: at "CTXSYS.TEXTINDEXMETHODS", line 54
ORA-06512: at line 1
What do you think is wrong?
Thank you

Is the listener up and running?
Installation
1.What are the steps to install interMedia Text manually, AFTER installing the code via the
installer?
A.
cd $ORACLE_HOME/ctx/admin
B. as SYS:
@dr0csys.sql ctxsys system temp
where ctxsys is the ctxsys password
system is the default tablespace for ctxsys
temp is the temporary tablespace for ctxsys
C. as CTXSYS:
@dr0inst.sql
/oracle/db/dev118/ctx/lib/libctxx8.so
(on Solaris)
where /oracle/db/dev118 is $ORACLE_HOME
D. as CTXSYS:
@defaults/drdefus.sql
Note: this is assuming you want U.S. to be your language default, otherwise run the
corresponding drdef for your language.
2.What are the steps to install interMedia Text manually, with a Net8 Configuration?
A. Configure an IPC listener address.
For example, change:
LISTENER =
(ADDRESS_LIST=
(ADDRESS=
(PROTOCOL=tcp) (HOST=ap118sun.us.oracle.com) (PORT=1521)
to:
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC) (KEY = EXTPROC0))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP) (HOST = ap118sun) (PORT
=1521))
This shows the full LISTENER definition in your listener.ora. Note: EXTPROC0 ends in a
zero.
B. Add a system identifier (SID) name of PLSExtProc and a program name of EXTPROC in the server's LISTENER.ORA file.
For example, in the SID_LIST_LISTENER definition, insert:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC = ...
(SID_DESC =
(SID_NAME=PLSExtProc)(ORACLE_HOME=/oracle/db/dev118)
(PROGRAM=extproc)
C. Add a net service name description entry for EXTPROC0 in the server's tnsnames.ora
file, using SID rather than SERVICE_NAME in the CONNECT_DATA section.
For example, add this to the end of tnsnames.ora:
extproc_connection_data =
(DESCRIPTION=
(ADDRESS_LIST =
(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC0))
(CONNECT_DATA=
(SID=PLSExtProc)
(PRESENTATION = RO)
This entry should be added exactly as you see it here (do NOT substitute your SID
anywhere, do NOT change the case of any text). Note: EXTPROC0 ends in a zero, RO
ends in an Oh
1.How do I check my interMedia Text installation and setup?
A.
lsnrct1status
should give you the following:
LSNRCTL for Solaris: Version
8.1.5.0.0 - Production on 31-MAR-99 18:57:49
(c) Copyright 1998 Oracle Corporation. All rights reserved.
Connecting to
(DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC0)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for Solaris: Version 8.1.5.0.0 - Production
Start Date 30-MAR-99 15:53:06
Uptime 1 days 3 hr. 4 min. 42 sec
Trace Level off
Security OFF
SNMP OFF
Listener Parameter File
/private7/oracle/oracle_home/network/admin/listener.ora
Listener Log File
/private7/oracle/oracle_home/network/log/listener.log
Services Summary...
PLSExtProc has 1 service handler(s)
oco815 has 3 service handler(s)
The command completed successfully
The important information to understand here is the service handler for PLSExtProc.
B. Create a user/table/index/query thus:
As SYS or SYSTEM:
create user ctxtest identified by ctxtest ;
grant connect, resource, ctxapp to ctxtest ;
Do any other grants, quotas, tablespace etc. for the new user. As CTXTEST:
create table quick
quick_id number primary key,
text varchar(80)
insert into quick ( quick_id, text )
values ( 1, 'The cat sat on the mat' );
insert into quick ( quick_id, text )
values ( 2, 'The quick brown fox jumped over the lazy dog' );
commit;
create index quick_text on quick ( text )
indextype is ctxsys.context;
At this point, if your Net8 setup is NOT correct you will get:
create index quick_text on quick ( text )
ERROR at line 1:
ORA-29855: error occurred in the execution of ODCIINDEXCREATE routine
ORA-20000: ConText error:
DRG-50704: Net8 listener is not running or cannot start external procedures
ORA-28575: unable to open RPC connection to external procedure agent
ORA-06512: at "CTXSYS.DRUE", line 122
ORA-06512: at "CTXSYS.TEXTINDEXMETHODS", line 34
ORA-06512: at line 1
If everything is OK, you will get:
Index created.
Now try some queries:
SQL> select quick_id from quick where contains(text, 'cat')>0;
QUICK_ID
1
SQL> select quick_id from quick where contains(text, 'fox')>0;
QUICK_ID
2
Congratulations !! You now have a successful interMedia Text V8.1 installation.
null

Intermedia help needed

hi,
We are using Oracle 8i (8.1.6) and use intermedia to index certain columns. We been facing a peculiar problem over the past few days wherein search queries based on intermedia indexes crap out on singular words but come back fine on the plurals for the same word.
eg : flower( craps out !! ) whereas flowers (result comes back fine)
mobile( craps out !! ) whereas mobiles (result comes back fine).
We use jsps for presentation logic and java to build queries and other business logic. An application server connects to the Oracle DB.
If the same search query for singlular words is executed from SQLPLUS, the results come back fine.
Has anyone encouneterd this type of problem before ? Are there any remedial mesaures ? Its very very puzzling indeed.
cheers
Vinay

hi,
We are using Oracle 8i (8.1.6) and use intermedia to index certain columns. We been facing a peculiar problem over the past few days wherein search queries based on intermedia indexes crap out on singular words but come back fine on the plurals for the same word.
eg : flower( craps out !! ) whereas flowers (result comes back fine)
mobile( craps out !! ) whereas mobiles (result comes back fine).
We use jsps for presentation logic and java to build queries and other business logic. An application server connects to the Oracle DB.
If the same search query for singlular words is executed from SQLPLUS, the results come back fine.If the search query works fine using SQL-contains then you have issues at the application level (your Java code).
The only thing that I can recommend is the checking the jdbc section of your code.

InterMedia on separate server?

Is it possible to run Oracle Intermedia Text on another server as the database? The idea is that we don't want the indexing of new documents to slow down the queries done by users (web).
Is it possible to have the load of the indexing on another machine?

Hello Geert:
This is a discussion forum for Oracle Internet Directory, Oracle's LDAP server. Questions regarding Intermedia text should be refered to the interMedia or IFS discussion forums.
Thanks,
Jay
null

Gathering statistics on interMedia indexes and tables

Has anyone found any differences (like which one is better or worse) between using the ANALYZE sql command, dbms_utility package, or dbms_stats package to compute or estimate statistics for interMedia text indexes and tables for 8.1.6? I've read the documentation on the subject, but it is still unclear as to which method should be used. The interMedia text docs say the ANALYZE command should be used, and the dbms_stats docs say that dbms_stats should be used.
Any help or past experience will be grateful.
Thanks,
jj

According to the Support Document "Using statistics with Oracle Text" (Doc ID 139979.1), no:
Q. Should we gather statistics on the underlying DR$/DR# tables? If yes/no, why?
A. The recommendation is NO. All internal recursive queries have hints to fix the plans that are deemed most optimal. We have seen in the past that statistics on the underlying DR$ tables may cause query plan changes leading to serious query performance problems.
Q. Should we gather statistics on Text domain indexes ( in our example above, BOOKS_INDEX)? Does it have any effect?
A: As documented in the reference manual, gathering statistics on Text domain index will help CBO to estimate selectivity and costs for processing a CONTAINS() predicate. If the Text index does not have statistics collected, default selectivity and cost will be used.
So 'No' on the DR$ tables and indexes, 'yes' on the user table being indexed.

Toplink stop sending queries

I have problems with a specific query that uses CONTAINS (intermedia) on a customer site's web interface. For some simple values looked by the query, the query seems to take forever to be handled by the DB.
But that's not the main problem. The user can continue to access the the rest of the site and the DB till it attempts a second time the query that failed before.
From that moment the parts of the web site that makes accesses to the DB stop responding till we stop and restart the server.
I looked at the logs we generate, no trace of exception of error reports. However the logs also list the queries made to the DB and I note that that after the second of the problematic queries not a single query is listed in the log. It's as if TOPLINK thinks that its connection(s) to the DB are all used and that he is waiting for them to become free again before sending more queries.
Does someone now how to make him dialog with the DB again?
Andr�

This is most likely occuring because the TopLink ServerSession defaults to using a read connection pool with 2 connections.
You can increase the read connection pool size through one of, useReadConnectionPool, useExclusiveReadConnectionPool.
i.e.
server.useReadConnectionPool(5, 5);
The read connection pool currently must be configured in code, not through the sessions.xml. So if you are using the sessions.xml you will need to use the preConnect session event to configure your ServerSession.
This problem is also related to a fix that was put into the 9.0.3.5. TopLink is suppose to use a non-exclusive read connection pool by default, so that this type of problem does not occur, the 9.0.3.5 patch fixes this problem.

Information about Embed Intermedia and BLOB

Hello,
I want to insert a picture in my report. I read in Application Forum that you have to do that with Embed Intermedia or BLOL Column.
Does anybody could give me more information about those two subjects ? Or just a link for more information ?
Thanks in advance,
Chu Lam

You can use Intermedia with other application servers, you don't need to get the interMedia Web Agent
For example, any java application environment can talk to Oracle via JDBC.
You can send SQL queries to to the database using the contains(indexed_column_name, 'keywords')>0 statement to query the Intermedia text indexes, and you could use simple text URLs for the image reference, if the image is on the filesystem, rather than as a BLOB in the database.
If you were dealing with BLOBs in the database, you could write a stored procedure in the database that has a BLOB as an IN OUT param and use a jdbc CallableStatement to call the stored procedure, and get the BLOB image data.
Similarly, you could use any other web application environment, as long as it can issue SQL queries to Oracle.
e.g. Perl using the DBI module with the Oracle DBD module.
Cheers
David

Intermedia queries..

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