I want to get the report for statistics for datasource monitoring from weblogic console.
Scenario is, I do not have access to production weblogic console and the issue is for pool limit exceed.
I want to monitor connection count (statistics) for at least a week and decide the limit for this if any way to get report for this statistics will be great.
Any help will be great.
You can find this information in : Monitoring WebLogic JDBC Resources. You want to use the Connection Usage Profile = PROFILE_TYPE_CONN_USAGE_STR.
Related
I have performance issue with my .NET app hosted on an azure web app, connecting to Azure SQL DB with a custom connection string.
The more there are users, the more the app is slow. Therefore I am wondering if there are some improvements to perform at connection pool level.
How to check the pool size currently set ? How to detect sql issues when handling requests from different users ? And how to set pool size ?
Thank you for your help.
I think it's related to SQL Database resource limits for Azure SQL Database server.
The more there are users, the more the app is slow, one of the most important reason is database resource limits are reached.
Compute (DTUs and eDTUs / vCores)
When database compute utilization (measured by DTUs and eDTUs, or vCores) becomes high, query latency increases and can even time out.
Storage
When database space used reaches the max size limit, database inserts and updates that increase the data size fail and clients receive an error message. Database SELECTS and DELETES continue to succeed.
Sessions and workers (requests)
The maximum number of sessions and workers are determined by the service tier and compute size (DTUs and eDTUs). New requests are rejected when session or worker limits are reached, and clients receive an error message. While the number of connections available can be controlled by the application, the number of concurrent workers is often harder to estimate and control. This is especially true during peak load periods when database resource limits are reached and workers pile up due to longer running queries.
Fore details, please reference: What happens when database resource limits are reached.
If you Azure SQL DB is single database, you can reference these documents:
Azure SQL Database vCore-based purchasing model limits for a single database.
Resource limits for single databases using the DTU-based purchasing model.
Choose the most appropriate service tier.
About the performance issue, you also can use the Monitoring and performance tuning. It will help troubleshoot performance issue and improve the performance.
Hope this helps.
I've implemented predis server. I can't determine whether my application is pinging the database every time or if it is taking data from predis. Is there any way I can check incoming requests to the Redshift instance? Or test the predis?
Well, not sure if I understood the question but if you are looking to see the most recent queries run on your cluster you can check the stv_recents view. Or if you have access to the AWS console, you can open the "queries" tab for your cluster for real-time query execution details.
We have Multi-instance WCF Service (more than 2) which receives requests from ServiceBus Topics (Can have more than 10000 request in subscription).
The nature of the request is that we mainly do inserts in out database. Very minimal processing. Our database is of P1 in SQL Azure.
After sometime, we keep running out of Connection & do receive time outs. I have increased Pool size to 1000 & connection time out to 120 secs. We have checked, & connection pools are definately getting disposed off correctly.
Any Idea where we should start digging?
Thanks
The higher latencies and the resulting timeouts could be due to reaching the max write capacity of the database.
You can check if this is the case by querying the view sys.dm_db_resource_stats in the database. It shows the resource utilization in percent for the last hour.
If you indeed reach the log write limits, you should consider to upgrade your server to the latest service version (V12) which will give you higher log write rates. If you are already running V12, you may want to consider upgrading to P2.
I can get number of current connections by counting elements in /api/connections, and If I want number of all connections from rabbitmq server start, what should I do?, please give me some suggestions
You can't get any retrospective statistics data from RabbitMQ even with Management API (at least out of the box).
As a workaround, you can collect such data with the help of rabbitmq_event_exchange Community Plugin and then process events on application level.
How can I monitor traffic going out of a wcf service (self-hosted) on Windows Azure ? The amount of data going into my stress-test app doesn't seem to add up to what I'm seeing on the pricing page (which doesn't seem to be updated live anyway). The service is using https and messages are pretty small. Is the SSL handshake traffic negligible? I also have a data-miner worker roler that continuously downloads data from the internet, but from what I've read, inbound traffic is free, so it shouldn't count in the OUT traffic.
How can I get a reliable traffic monitor?
Billing page is usually updated once a day (once in a 24hr period). So you have wait a lot until you see results of your stress test added to the billing page for your account.
One place that you can monitor this (among other KPI for you application) is the MONITOR tab in the Management Portal. You can navigate to your Cloud Service being under test, click the MONITOR menu item, then click on the Add Metric at the bottom, and finally chose Network Out. This monitoring dashboard gets data every 5 minutes so it shall reflect network usage you are talking about.
Here is a screenshot of how to achieve this:
Other option that you have is to use a Network Performance Counter such as Network Interface : Bytes Sent/sec. You have to configure Windows Azure Diagnostics to monitor that specific performance counter. You can then set a scheduled transfer period of 1 minute and dig into the table created by the diagnostics agent for data.
P.S. And yes, you are correct - INBOUND data for Azure is FREE.