Query: The number of connections possible on APEX

Hi all,
Hope you all are doing good.
there is one query,
Does the number of connections to apex depends on database memory ???
Is there any limitation on number of connections at the same time ?
i have one application,
APEX 4.1
DB 11.2.0.2
when it was launched.., people tried to login and as soon as they logged in the poratl/application went down. had to bounce the DB to get it back.
was clueless on what would be the reason for this behavior.
how do i make sure this would not occur again..,
thanks and regards,
Littlefoot

Hi Dietmar,
i have the same assumption, but the problem here the user is facing is, they have used some java scripts to upload the excel sheet and when uploading it the apex portal goes down.
they are still testing it, expected user to login is around 600 at the same time.
From the db side :
SQL> sho parameters sga
NAME                                 TYPE        VALUE
lock_sga                             boolean     FALSE
pre_page_sga                         boolean     FALSE
sga_max_size                         big integer 3808M
sga_target                           big integer 0
SQL> sho parameters job_queu
NAME                                 TYPE        VALUE
job_queue_processes                  integer     1000
SQL> sho parameters large
NAME                                 TYPE        VALUE
large_pool_size                      big integer 0
use_large_pages                      string      TRUE
SQL> sho parameters java
NAME                                 TYPE        VALUE
java_jit_enabled                     boolean     TRUE
java_max_sessionspace_size           integer     536870912
java_pool_size                       big integer 1424M
java_soft_sessionspace_limit         integer     536870912they are getting the error : ORA-04031: unable to allocate 91992 bytes of shared memory
how do we remove the error..,
any help on this.
additional details : server has 12GB ram.
thanks and regards,
littlefoot

Similar Messages

How do I configure the number of connection in the pool for webservice axis

Hi
How do I configure the number of connection in the pool using xml.
We are using axis 1.4 and commons-httpclient-3.0.1Is there any way we can do it using the client-config.wsdd file.
We do not want to do any modification in the code for this.
Is it possible to set socket timeout also in the wsdd file.
Your resolution will be really helpful for us.
Thank You
Ottran

Export them at a smaller size:
File -> Export - not the options at 'Size'
Regards
TD

SQL Query - The number of columns specified in "SQL Query" does not match t

I am creating new UDM for tablespace alert, below is my query,however its failing with error
SQL Query - The number of columns specified in "SQL Query" does not match the value specified in "SQL Query Output"
I selected Metric type is number
SQL Query Format : Two columns
Query:
SELECT d.tablespace_name,round(((a.bytes - NVL(f.bytes,0))*100/a.maxbytes),2)
used_pct FROM sys.dba_tablespaces d,(select tablespace_name, sum(bytes) bytes, sum(greatest(maxbytes,bytes)) maxbytes from sys.dba_data_files group by tablespace_name) a,(select tablespace_name, sum(bytes) bytes from sys.dba_free_space group by tablespace_name) f
WHERE d.tablespace_name = a.tablespace_name(+) AND d.tablespace_name = f.tablespace_name(+)
AND NOT (d.extent_management = 'LOCAL' AND d.contents = 'TEMPORARY');
Any clues why i am getting error.

SQL> SELECT d.tablespace_name,round(((a.bytes - NVL(f.bytes,0))*100/a.maxbytes),2) used_pct
2 FROM sys.dba_tablespaces d,(select tablespace_name, sum(bytes) bytes, sum(greatest(maxbytes,bytes)) maxbytes from sys.dba_data_files group by tablespace_name) a,(select tablespace_name, sum(bytes) bytes from sys.dba_free_space group by tablespace_name) f
3 WHERE d.tablespace_name = a.tablespace_name(+) AND d.tablespace_name = f.tablespace_name(+)
4 AND NOT (d.extent_management = 'LOCAL' AND d.contents = 'TEMPORARY');
TABLESPACE_NAME USED_PCT
MGMT_TABLESPACE .82
SYSAUX 1.52
UNDOTBS1 .32
RMAN .02
CORRUPT_TS 10.63
USERS 0
SYSTEM 2.26
MGMT_ECM_DEPOT_TS .04
MGMT_AD4J_TS 0

Finding the number of connected components in a graph

I don't know haow many people have seen this problem posted on c.d.o.m, but here is the essence
given an equivalence relation, e.g.
x y
1 1
2 2
2 1
1 2
3 3
find the number of equivalence classes. In this example equivalence classes are {1,2} and {3}.

The idea: Label all the graph nodes with distinct primes. Find all simple paths in the graph weighted with product of nodes. Find the skyline of all maximal products. Count them.
Implementation (swithced to boolean vectors instead of primes)
create table input as (
select 1 x, 2 y from dual
union
select 2, 3 from dual
union
select 2, 4 from dual
union
select 6, 7 from dual
union
select 8, 9 from dual);
with TC as (
select connect_by_root(x) x, y
from (
select x,y from input
union
select y,x from input
) connect by nocycle x = prior y
), weightedNodes as (
select node, power(2,rownum-1) code
from (select x node from input
union select y node from input )
select count(distinct code) from (
select x,y,sum(code) code from (
select distinct pre.x, pre.y mid, post.y from TC pre, TC post
where pre.y=post.x
), weightedNodes
where node = mid
group by x,y
drop table input;

How to limit the number of connection to BI Publisher ?

Hi,
My Customer wants to limit the number of users
that can concurrently view BI Publisher reports,
but they don't want to restrict access to BIEE.
Is it possible to meet this requirement?
Thank is advance for any explanation.
Regards,
Toshihiko

Hi.. Toshihiko
Login to Answers,
Go to Settings > Administration > Manage Privileges
Now go to Oracle BI Publisher Enterprise Section..
Under this you found View BI Publisher Reports
Here you can give permissions to Users & Groups
Thanks to my colleague Naresh about this...
Thanks & Regards
Kishore Guggilla

How to query the number of working days between two dates

I'm looking for a solution to calculate the number of working days between two dates that I can use in a formated search.
Calculating the total number of days is pretty straight forward but does anyone know how to take into account the settings in the HLD1 (Holiday Dates) table?

Hi Eric,
If you are purely looking to exclude holidays defined in the HLD1 table, then you should be able to do it with the following query
NOTE: The following query is an example using OINV table and the fields DOCDATE and DOCDUEDATE for a Particular DOCNUM 'xxx'
If you planning to use within the SAP module then replace DOCDATE and DOCDUEDATE with dynamic field references $[$x.x.x]
SELECT DATEDIFF(DAY,T0.DOCDATE,T0.DOCDUEDATE)-
(SELECT COUNT(STRDATE) FROM HLD1 WHERE STRDATE >= T0.DOCDATE AND STRDATE <= T0.DOCDUEDATE)
FROM OINV T0
WHERE T0.DOCNUM = xxx
Best Wishes
Suda

How to check the number of connections to MySQL DB

Hi,
Is there some way to check the number of applications connected to a mysql database?
I have two different Java applications that will be using the same instance of MySQL.
My requirement is that, I want to close the MySQL instance while closing the Java application.
But before doing so, I want to make sure the other application is not connected to it.
Is there some way I can achieve this?
Your suggestions will be of great help.
Thanks,
Sandeep

Hi,
Thanks for your response.
"Show processes" definitely serves my need.
Basically what I am trying to do is to check if there are any other open connections to a MySQL instance before closing it.
In our application suite, if there is a MySQL instance running, then the applications connect to it by default which results in some undesirable behavior sometimes.
Hence, we are making sure that we close the MySql instance before exiting the application.
Thanks,
Sandeep

Find the number of connections coming through a listener

Hi,
We have 10 listeners on our database. How to find out at runtime , how many users are accessing through a specific listener.
Is v$dispatcher the view needed to query.
Please guide.
Thanks.

A-K wrote:
Hi,
But through service name how do i find th specific listener port. I have multiple entries of different ports across my service name in the tns file.
Below is what my TNS entry looks like,
PRODDB =
(DESCRIPTION=
(ADDRESS_LIST=(PROTOCOL=TCP)(HOST = 192.19.100.10) (PORT=1520)))
(ADDRESS_LIST=(PROTOCOL=TCP)(HOST = 192.19.100.10) (PORT=1521)))
(ADDRESS_LIST=(PROTOCOL=TCP)(HOST = 192.19.100.11) (PORT=1522)))
(ADDRESS_LIST=(PROTOCOL=TCP)(HOST = 192.19.100.11) (PORT=1523)))
(ADDRESS_LIST=(PROTOCOL=TCP)(HOST = 192.19.100.11) (PORT=1524)))
(ADDRESS_LIST=(PROTOCOL=TCP)(HOST = 192.19.100.15) (PORT=1530)))
(CONNECT_DATA = SID = PRODDB))
Her for one ip there are more than one ports assigned.
RegardsDo not see tnsnames.ora file,please run lsnrctl status or lsnrctl service from the server then you will see all services which registered on listener.

Is it possible to limit the number of remote panel connections to a vi?

Hello,
I have an application running on a RT PXI and I'm using remote panel to access it. My licence allows me to have multiple remote connections and it's ok as I sometimes need to open multiple remote panels at the same time. However, I would like to limit the number of connections to 1 for a particular VI. Is it something that can be done?
Regards,
Patrick Lessnick
Solved!
Go to Solution.

Patrick: If you right click on your target PXI system in the project exporer, select Properties>Web Server>Browser Access you can select who you let have access to your VIs. Likewise, in the Visible VIs section of Web Services you can limit which of your VIs you want people to be able to see.
If this isn't enough control, from your run time application on the PXI system you can write a startup VI (in parallel with your main application) to monitor the Remote Panel: Connections to Clients Property of the real time server. Once this monitor application sees a connection you can take any number of actions to prevent more than one connection, deny access to specific IP ranges or what have you.
I am assuming you are using LabVIEW 2009 and MAX 4.6.1 but it may apply to earlier editions.
Hope this helps.
Bill

Limiting the number of users/connections

We currently have a very large user community (120000)who will be accessing the portal for ESS/MSS functionality.
We would like to limit the number of users to around 20000. Any more connections should get a nice error message (rather than a standard IE no more connections or a time out message).
We can obviously throttle the number of connections via the load balancer or via max connections in unix. Is there any method in the Portal itself, that will automatically direct the users to a seperate web page in the event of pre determined number of users/connections being reached.
I have search high and low but can't find a solution.
Thanks in advance
Fenton

Hi Tim,
No, there is nothing like this as a standard functionality within the portal. Similar requests are regulary asked on SDN (like: restrict the number of users logging in as you ask, restrict the number of parallel logins of one user, and things like this).
A possibility would be to implement your own login module which tries to check how many users are online. All techniques - independent if on portal or on WAS side - that try to count this have the problem that they cannot be sure who is "online" as you have no definite information if a user is online or not; one can only use more or less heuristic methods.
Hope it helps
Detlev

How to check the number of active jdbc connections

hi all,
i'm creating a connection from Java using java.sql.Connection class and with oracle thin drivers. connection is creating properly.
now, i want to know how many connections are created, through the sql query. i forget the query.
its helpful for me.
regards
pavan.

Your requirements are a bit vague - the only place to accurately determine the number of connections is in Oracle using the V$SESSION virtual view.
It can tell you the number of session (active or idle) made from the platform running that Java code. It can also tell you basic session information like the current SQL (if active) that is being executed.
There are numerous other V$ views that can be used in conjunction to build a very accurate picture of what the session is doing and what resources it is using.
Details are in the Oracle® Database Reference manual. On-line copies of all manuals available via http://tahiti.oracle.com

Actiontech MRI424WS number of connections possible?

I have the actiontech router for my Verizon FiOS and several items that need to be connected to it from my xboxes, PS3 laptops and mobile devices. I foudn a setting in the FiOS router that states "number of connections" and goes from 1 to 10.
The question I have is that from time to time one of our laptops seems to never be able to connect to the internet (Vista shows local access only). Is this because I have too many items on the router?  Is there a way around this limitation. If I had know this I would never have signed up for this.
Is the only way around this to buy another router and hook it in sequence to the actiontech?
Thanks for your responses.

Hubrisnxs wrote:
where exactly do you see that?   like on what page or after clicking what items in the router?
the router actually supports upto 254 some odd connections.
physically out of the box 4 hardwired connections and any number of wireless that fit within that configuration.
The screen you are looking at MIGHT be the number of pc's that can be logged into the verizon interface at one time, and not the amount of active connections.
Wow, that's a little scary. I have a Westell 9100Em and I currently show
Connections Active Connections: 258 Approximate Max. Connections: 154000
We must be talking a different connections page, there can't really be that difference between the 2 routers can there?
I accessed the connections screen by following the router users guide
I currently have 14 devices connected
Verizon FiOS Router (Model 9100EM) User Guide
13.10 Connections
If you select Firewall Settings in the top navigation menu and then select Connections in the left submenu, the
following screen will appear.
The connections list displays all the connections that are currently open on the firewall, as well as various details
and statistics. You can use this list to close undesired connections by clicking the “X” icons. The basic display
includes the protocol type, the different ports it uses, and the direction of the secured traffic.
• Active Connections—this value represents the number of active concurrent connections.
• Approximate Max. Connections—this value represents the amount of additional concurrent connections
possible.
• Connections Per Page—use this drop-down list to select the number of connections to display at once.
Click the Advanced button to display a more detailed connection list.

How to calculate the number of user connections in a report?

Hi,
I would like to have a report which automatically calculate the number of connections per user.
Thanks for your answer.
Regards

Hi,
What do you mean by number of connections? Do you mean how many times each user has run a specific report?
Thanks

Why do the number of active JMS connections increase?

Problem
- Number of active JMS connections and current JMS messages increases until the Weblogic instances crash with an OutOfMemory exception
Setup
- Weblogic v9.2.3, Cluster with 4 Nodes
- A JMS Message is sent from a MDB in Weblogic to a distributed queue which has a member on each of the 4 Weblogic nodes. The session is created as follows session = connection.createSession(false,Session.AUTO_ACKNOWLEDGE), the message delivery mode is set programmatically to persistent and the delivery mode override of the queue setup is set to persistent too
- Standalone JMS client processes: each one is attached to all 4 nodes. Each one uses a unique JMS message selector so that we have more than one queue consumer for one queue but every message is exactly dedicated to one queue consumer. We us weblogic.jar for the clients.
- Use of Weblogic auto reconnect feature. JMS client code:
Connection connection = this.connectionFactory.createQueueConnection();
final WLConnection wlconnection = (WLConnection)connection;
wlconnection.setReconnectPolicy(JMSConstants.RECONNECT_POLICY_ALL);
wlconnection.setTotalReconnectPeriodMillis(-1);
wlconnection.setReconnectBlockingMillis(-1);
Remarks and Questions
- There are no pending JMS messages which is good
- In our setup, each JMS client is connected to all 4 nodes as the messages are not distributed to all nodes: if a message is put to Queue A but the client is only connected to Queue B, the message is NOT transfered from Queue A to Queue B. We set the parameter "Forward Delay" to 5 seconds with no effects. Is this the normal behavior?
- Not all JMS clients are visible in the Weblogic console under JMS Services -> JMS Servers -> [Server] -> Monitoring -> Active Connections. Which one are visible? Which one are not visible? There are also clients where the number of connections is not zero but stays constant; we know that as several independent clients on different hosts are started and the IP adress is visible in the Weblogic console. Why....?
- What reasons can lead to increasing connections? Is this due to client or server problems? Do we have to acknowledge the message in the onMessage(Message) method of the client JMS consumer? So far as I know, we don't have to.
- Are the increasing number of current messages due to the increasing number of JMS connections?
- May the RECONNECT_POLICY_ALL policy produce this problem?
Any hint is appreciated.
Peter
Edited by: pkeller on 23.10.2008 17:08

To answer the question about the forwarding of messages from one queue to another myself: As mentioned at http://forums.bea.com/thread.jspa?threadID=400000611, the forwarding for queues does only work if all queue consumers are attached to the same queue. This means that our setup is OK.
But the main question is still unanswered: why do the number of active JMS connections increase? I forgot to mention that
- all messages arrive at the clients and that no exceptions are visible in the log
- if you kill the client, the connections are still visible in the Weblogic console!?
Please help as this problem is very urgent.
Peter
Edited by: pkeller on 24.10.2008 09:06
Edited by: pkeller on 24.10.2008 09:10

Number of connection allowed in the free developer ediiton of Flash Media Server

Hi
I would like to know the number of connection allowed in the free developer ediiton of Flash Media Server
Regards
Sunny

Hi,
When we say we limit the number of connections to 10 in Flash Media Development Server, we mean that we allow 10 successful connections and reject 11th connection onwards. So at anypoint of time your server can have only 10 active connections. When there are 10 active connections and a 11th client tries to connect to the server, the connection is rejected with reason "NetConnection.Connect.Rejected - [ License.Limit.Exceeded ] : (_defaultRoot_, _defaultVHost_) : Max connections allowed exceeds license limit. " and these details are logged at the server side core.log too
Regards,
Janaki L

Query: The number of connections possible on APEX

Similar Messages

Maybe you are looking for