I am using Oracle 11g On windows 2003 Server, and in the task manager, tnslsnr.exe comsuming approx 1 GB of RAM. After restarting the listener it came to some mb(20-30). but Again after few days it raies and consume lots of memory..
View 11 RepliesHow can I find out the particular oracle session which was consuming high memory in the past?
I can't get the data in v$sessstat
Unable to get the information in AWR
dba_hist_active_session_history do not have field which indicate memory related information
Shall I concetrate on EVENT in dba_hist_active_session_history which continuosly had sort, direct path read
Or
Locate sql_id from dba_hist_sqlstat with high SORTS_DELTA for snapshots belonging to problematic time period and then using the sql_id query dba_hist_active_session_history
which approach I shall take to find out the session which consumed most memory in the past?
Share a query for inactive sessions consuming memory? I have found many inactive sessions with the following query and would like to join this information with memory usage as well.
select username, machine, program, to_char(LOGON_TIME, 'hh24:mi:ss DD-MM-YYYY'), LAST_CALL_ET/60, status from gv$session where status='INACTIVE';
I have two tables with same columns(15 of them), I am trying to find difference between two tables using minus operator and then insert in stage table using below code
Issue is table1 has 50 million records
table2 is empty
so when first time when we execute this v_collection1,v_collection2 collection will have 50 million records in it which will go in memory, I think this is not good, because going in memory will eat memory and resources while sorting and other activities ?
After fetching records in collection we are inserting that in stage table and then COMMIT so i think that wont be good because committing 50 million will generate large amount of redo?
below is snippet of my code
DECLARE
type lst_collection1
IS
TABLE OF table1.col1%type INDEX BY binary_integer;
type lst_collection2
IS
[code].......
We are using the 11g AMM feature and Memory_Target set to 96GB and total RAM on the Server is 128GB Now the top and free shows up only 200MB memory free on the system.
There are 2 process dbw0 and dbw1 which consumes the top memory and this is 30GB per dbw.
Why is the dbw process taking up so much memory when there is not much load on the database.
I am running oracle linux 5.7 on VMware Workstation 9 and trying to install Grid 11gr2, during installation my system freezes and I see out of memory errors. Actually Java installer is eating up too much memory over 1gb. Is there a way ? I can limit memory usage by Java process to a certain extent ?
View 1 Replies View RelatedMy database is working fine till y.day. But today when I try to connect as sysdba i get the following error- let me know how to resolve the same
C:UsersAdministrator>set ORACLE_SID=sha
C:UsersAdministrator>sqlplus '/ as sysdba'
SQL*Plus: Release 11.2.0.1.0 Production on Tue Sep 4 05:11:14 2012
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Enter password:
Connected to an idle instance.
SQL> startup mount
ORA-27102: out of memory
OSD-00026: additional error information
O/S-Error: (OS 1455) The paging file is too small for this operation to complete
We are using Oarcle 10G release and IIS-6 in our web application.
After moving to oracle 10G we started getting this error
ROW-00001: Cannot allocate memory
now and then. If we restart, the problem gets resolved.
Applications stability is broken because of this.
I keep getting the error message- ORA-27101 shared memory realm does not exist...... what is the root cause of this issue and how is it fixed?
View 2 Replies View RelatedI have a 11g database installed on a windows 2003 server. When I created the database I could not assign more than 2GB for SGA_TARGET where as I have 16GB of RAM available on the server. I created the database with SGA_TARGET as 1.5 GB and Memory_TARGET as 2GB. I could create the database successfully. Later when I again tried to increase SGA_TARGET to 6GB and MEMORY_TARGET to 8GB, I could not start the database. I got below error;
ORA-27102: out of memory
OSD-00022: additional error information
O/S-Error: (OS 8) Not enough storage is available to process this command
Quote:I added /pae in the boot.ini
Added AWE_WINDOW_SIZE key to registry as 2000000000
Set use_indirect_data_buffers=true
added db_block_buffer=131072 (ie. 2GB DB_BLOCK_SIZE=16kb)
java_pool_size= 1000M
large_pool_size=1000M
shared_pool_size=2000M
I got again the same error
I could not use SGA_TARGET. So is AMM not allowed with AWE?
I am using an OrdImage type to allow me to rotate a photo and I understand the larger the photo the more time it will take to rotate. However I was wondering if there was a way I could perhaps speed up the process? Currently a photo of 1meg takes approx 27 seconds to rotate, for one about 400k it seems o take about 7 seconds. To me these seem like quite long periods of time for the rotation, though maybe thats how long they take?
I am using oracle 10g and the process I am using for the rotation is: source_ord_image.process('rotate "90"');
I read and tried a lot, but I can't consume a UTF-8-Webservice correct in a 11gR2-DB: German "Umlaute" like ü are displayed/written as ü.
The service sends all correct. (tested with soap-ui 4.5.1)
The DB-NLS-Parameters are:
SQL> select * from NLS_DATABASE_PARAMETERS;
PARAMETER VALUE
------------------------------ --------------------------
NLS_LANGUAGE GERMAN
NLS_TERRITORY GERMANY
[code]...
I consume Service with that skript:
DECLARE
l_http_request UTL_HTTP.req;
l_http_response UTL_HTTP.resp;
l_buffer_size NUMBER (10) := 512;
l_line_size NUMBER (10) := 50;
l_lines_count NUMBER (10) := 20;
[code]....
What can I do, to get the response correct in NLS_CHARACTERSET WE8MSWIN1252.I think, it must be possible to convert the response, but I didn't found the correct solution.And I don't understand, why the body_charset is ever "ISO-8859-1" (commented in procedure). Settings utl_http.body_charset is without effect.
I have table which has 240 columns.
Here is the list of column data type.
VARCHAR2(50)
TIMESTAMP(6)
VARCHAR2(25)
VARCHAR2(25)
NUMBER(15,2)
VARCHAR2(50)
NUMBER(1)
[code]....
The table has 64 partition.. When i count the table(select count(*) from table), i see close to 22 million records.
SQL> select (num_rows*avg_row_len)/1024/1024/1024 GB,num_rows,avg_row_len
2 from dba_tables
3 where table_name='TRX_TAB';
GB NUM_ROWS AVG_ROW_LEN
---------- ---------- -----------
74.9393936 21871585 3679
SQL>
It is supposed to take 75 GB. But this table is consuming 135 GB now. It is occupying 8 GB per day.
I have the following setup
SQL> show parameter sga;
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
lock_sga boolean FALSE
pre_page_sga boolean FALSE
sga_max_size big integer 3G
sga_target big integer 2G
from what I read I beleive this will initially grab 2GB of memory on startup and will grab up to to 3GB of memory total for the SGA. The "total" memory can be allocated to different peices of the SGA when needed but will never exceed 3GB. Is this correct or would these settings infringe on any available memory on a system that is already tight on memory?
Secondly, what happens if both these values are set to the same value?
Can i know the internal process of initialization of DB into memory in timesten , when a new connection is establishing? Will timesten create tables and indexes in RAM when first connection is established if the RAM policy is default?
want to know the internal functional flow of timesten when any command is fired against it.
I have a confusion with MEMORY_TARGET and MEMORY_MAX_TARGET parameter. if i set SGA_TARGET, SGA_MAX_SIZE along with MEMORY_TARGET and MEMORY_MAX_TARGET then how oracle will manage the memory? Because as per my understanding if we set MEM
View 3 Replies View RelatedI have a table with zip codes and their plus four values. For ex: zip code of 10000, which has corresponding plus four values of 001, 002, 003, and 008, 009, 010. The issue is just that--a zip code can have sequential plus four values, and then it will skip several potential plus four values, and then start again. I would like to assign a low plus 4 value and high plus four value to a zip code, keeping in mind that the plus four values are not always sequential. So, it would be similar to this:
zip plus4 low plus4 high
10000 001 003
10000 008 010
My requirement is while sending a data file from oracle to mainframe, first 3 bytes for the header row should contain low values and trailer should contain high value.
How to pass oracle values to mainframe high and low values ?
I have a priority column(possible values are 1 or 0) in a table where
i need to get 70% of high(1) and 30% of low (0) and max i can fetch for select is 50 records.
Eg1: Total if i have 60 in which 20 high and 40 low then 70% of 20 = 14 and remaining should be taken from Low i.e. 36 from low. so total will be 50 transactions.
Eg2: Total if i have 60 in which 40 high and 20 low then 70% of 40 28 + remaining should be taken from Low i.e. 22 from Low.
Eg 3: If i don't have any high then total should be picked from low vise versa.
I have below query but it is having problem when there is no low priority.
SELECT ID,PRI FROM temp tbl WHERE pri = '1' AND ROWNUM < ((70/100)*50)+1
UNION ALL SELECT * FROM temp WHERE pri = '0'
AND ROWNUM < 50-(SELECT COUNT(*) FROM temp WHERE pri = '1' AND ROWNUM < ((70/100)*50)+1)
I have setup of two node (prod-db1, prod-db2) clustered database 11gR2 on windows 2008 R2 server. Everything is working fine at this setup.
My question is: Is there a way to make the Enterprise manager Database control run and be available at both the nodes independently. What I see that even at node 2 (which is prod-db2) the EM-DBControl is (https://prod-db1:1158/em) - which means the agent is running at node 1 (prod-db1) only.
My question is that how to make the EM-DBControl also run separately at prod-db2. My idea is to make the high availability of EM-DBControl (in case Prod-db1 machine is down).
I am in the very early planning stages of a project the goal of which is to identify separate organizations which may in fact be the same organization.
Our first implementation of this task was a process designed to look for a few thousand organizations in a pool of a few hundred thousand organizations. To accomplish this we made heavy use of Oracle's Text index as well as a custom index type we created which utilized n-grams. This approach worked quite well for on-demand editing of the organizations, in which a user might log in and say in addition to what we already know about organization A we also know x, y and z does that change anything and worked acceptably well for the bulk processing we did on our "known" information once a week running for a couple of hours on the weekend.
We have now been tasked with reworking this initial implementation only now we want to look at a set consisting of several million organizations for potential matches which exist within the set. As in our initial implementation we will be breaking what we know about organizations into groupings so we aren't comparing a phone number to an email address and normalizing the data as much as we can so we ignore things like case and punctuation. Even after all this we are still talking about looking for similar values in a group which might be in the tens of millions (some types of data will have more than one value per organization).
My initial thought on the problem is to use n-grams though not in the way we did in the past. The basic idea here is that we break the search values up into all the substrings it is made of and look for other values which have a high number of those substrings in common.
SQL & PL/SQL was the best place for the question, but I could not think of a better one.
I am facing one performance issue, in which the query cost is very low compare to cpu cost and as a result the cpu always show the high graph.I am also attaching the gv$sql and gv$sql_plan data of this query.
This is the query:
SELECT PTLS.ITEMTYPE , PTLS.ITEMID , PTLS.STAGEID, TS.USERID, SUM(PREVIOUSHOURS) AS PREVIOUSHOURS, MIN(STARTDATE) AS STARTDATE, MAX(STARTDATE) AS ENDDATE FROM PROJECTTIMELOGSSTAGE PTLS, PROJECTTIMESHEETITEM PTSI, TIMESHEET TS WHERE PTLS.PROJECTID = :B2 AND TS.TIMESHEETID = PTSI.TIMESHEETID AND TS.USERID = :B1 AND PTSI.TIMESHEETID = PTLS.TIMESHEETID AND PTSI.ITEMTYPE = PTLS.ITEMTYPE AND PTSI.ITEMID = PTLS.ITEMID AND (PTSI.ISPWFITEM = 'N' OR PTSI.ISPWFITEM IS NULL) AND PTLS.ITEMTYPE NOT IN ('OtherTsk','NewTsk','Loc','Glb') AND (PTLS.ITEMTYPE, PTLS.ITEMID ) IN (SELECT ITEMTYPE, ITEMID FROM PROJECTTIMELOGSSTAGE PTLS1 WHERE PTLS1.PROJECTID = :B2 AND PTLS1.TIMESHEETID = :B3 ) GROUP BY PTLS.ITEMTYPE, PTLS.ITEMID, PTLS.STAGEID, TS.USERID
clould you sand me sqary for find high cpu user in oarcle 10g
View 3 Replies View RelatedI've plan to use "CPU Time Per User Call" metrics.
The thresholds are:
Warning: 8000
Critical: 10000
But this alarm raise every minute.
I think it's too low.But which is the correct value to identify performance problems?
I am trying to compare the ranges of low pair and high pair,if they are within the range then source_conn_id should remain same,else it should be updated to null,which i had written it in else block.How can I implement the IF block and what to write in that block so that source_conn_id can remain the same.
SQL> CREATE OR REPLACE PROCEDURE fp_complements_src(p_id varchar2,ftr_con_id varchar2)
2 AS
3 BEGIN
4 FOR i IN(SELECT SOURCE_CONN_ID,LOW_PAIR,HIGH_PAIR FROM COMP_TEMP1 WHERE SOURCE_CONN_ID=ftr_con_id)
[Code]....
We had a massive jump in cluster waits specifically; gc buffer busy acquire during an RMAN backup. We identified the cause of the waits to a few hot blocks with a table that may well need re-building in terms of ITLs and PCTFREE (Although I thorght ASSM would manage PCTFREE and PCTUSED..)
What happens during an RMAN backup that may cause huge cluster waits on hot tables? Is there some crazy redo issue going on or maybe flashback?
Either way the spike is there and we can pinpoint the activity on the database but just dont understand why RMAN would cause the issue.We have just found that the LARGE_POOL has not been set, in fact there is no SGA_TARGET either! Could this have an effect on RMAN and cluster waits?
I am facing a very strange issue with one of our Oracle query. The query is usually completes in a minute or two. Even the execution plan of the query is good and it works perfect most of the times, as expected. The query fetches about 1000-2000 records each day.
But on a given day, the query takes about 30-40 mins to execute completely. Upon checking the load on DB server, there are no other processes running which can impact the run time of this query. Moreover, the record counts fetched are almost same as compared to other days. There is no pattern observed as that this phenomenon occurs. it all happens once in a while.
Configuration is Oracle 10g with RAC environment on LINUX
We have a large table of equally sized data blobs in our Oracle system and we'd like to select the whole table once into the memory. The corresponding tablespace is stored in SSD fast disks and is managed by ASM. However the achievable select speed (reading data into memory) of Oracle is not satisfactory. When we store the data in SSD disk using custom methods (e.g. in SQLite DB files) and load then into memory by multithreading (8 thread) techniques, the speed is more than 15 times that of Oracle.
Is there any way to optimize the oracle and ASM for increased full table select in our case. We tried FULL TABLE SCAN and PARALLEL hints and DB_FILE_MULTIBLOCK_READ_COUNT too, but with no success.
FYI:Our data blob is about 4.2kB and each DB_BLOCK_SIZE is 8kB. The ASM segment is configured for AUTO-ALLOCATE. The table is partitioned by HASH. Our oracle system is not RAC.
when I was analyzing high CPU utilization issue, I saw that the most of the top PID's were INACTIVE in database. But it was utilizing more than 4% CPU. how it is utilizing CPU without doing any work in database?
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP
24013 oracle 2167M 1581M sleep 53 0 0:01:53 20% oracle/1
13260 oracle 2167M 1580M sleep 30 0 0:01:16 14% oracle/1
24399 oracle 2167M 1582M sleep 59 0 0:03:01 4.2% oracle/1
11509 oracle 2178M 1593M sleep 59 0 0:02:10 2.8% oracle/11
[code].....
Is there any way to tune the following query using lot of CPU:-select description,time_stamp,user_id from bhi_tracking where description like 'Multilateral:%'The explain plan for this is query is:-
---------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost |
----------------------------------------------------------------
| 0 | SELECT STATEMENT | | 178K| 6609K| 129K|
| 1 | TABLE ACCESS FULL| BHI_TRACKING | 178K| 6609K| 129K|
----------------------------------------------------------------
Bhi_tracking is used for reporting purpose and contain millions of records.Generally we keep one year data in this table and delete the remaining.Can I drop the table after taking export and then import it back or can i truncatethe table and then insert the rows into it to enhancethe performance.