I have Azure Diagnostics setup and logging into all the WAD tables.
How do I suppose to read all that logs? I have the Azure Storage Explorer, but I don't see how it can be useful and the logs also are loaded with considerable amount of garbage. Is there any way to view the diagnostics data in more sensible way?
You will either have to write yourself a parsing tool to read all the data, or you can purchase something like Cerebrata's diagnostics tool to interpret it. Unfortunately, the data in storage is just raw data and there is no interpretation.
Related
I am new to Azure and just want to know what is the difference in between Azure Performance Diagnostic Extension Vs Azure Log Analytics? or are they same functionality wise.
Azure Performance Diagnostic Extension collects performance diagnostic data from VMs. The extension performs analysis, and provides a report of findings and recommendations to identify and resolve performance issues on the virtual machine.
Azure Log Analytics is a log aggregation tool, it will collect and store your data from various log sources and allow you to query over them using a custom query language. It collects not only performance data but also event log, as well as log aggregation.
If you just want to collect the performance data of VM, you could use Azure Performance Diagnostic Extension. If you need to do anything more complex with this data or query across multiple resources, you could use Log Analytics.
Reference:
Performance diagnostics for Azure virtual machines
Azure Performance Diagnostics VM Extension for Windows
View or analyze data collected with Log Analytics log search
Azure Monitor and Azure Log Analytics
I'd like to use Kibana to create views that display log and metric information output by our Azure Cloud Service Web Roles and Worker Roles. In particular, we'd like to store performance counter information, as described here: https://learn.microsoft.com/en-us/azure/cloud-services/cloud-services-dotnet-diagnostics-performance-counters
Microsoft provides a few tools to view this data if it's stored in Azure diagnostic tables and blobs, but the tools don't have the formatting & visualizing flexibility the Elk stack does. Is anyone aware of how we might be able to get Azure Cloud Service Performance Counter information into Elasticsearch, preferably via logstash?
I've achieved this by enabling Azure diagnostics (writing to Azure table storage) and using ConveyorBelt to send the logs to ElasticSearch.
As the GitHub page states, ConveyorBelt is:
A horizontally scalable headless cluster to shovel Azure diagnostic
data (and other custom data) to ElasticSearch
I'm trying to set up logging for a storage resource (table specifically, though it seems like the activity log doesn't and just logs the entire Storage account).
The logging seems to log my ListKeys operations, occasional access from ApplicationInsights, but isn't logging any writes/reads I'm making to the tables themselves through either my app or the Microsoft Azure Storage Explorer. This table has been written to multiple times over the past few weeks, but yet none of that activity shows up.
Am I misinterpreting this page, which states that this activity log should track posts/deletes? Do I need any additional setup to track these operations?
Per my understanding, you could leverage Storage Analytics logging to log the operations on your storage. For the detailed operations that are logged for the corresponding storage service, you could refer to this official document.
According to your description, I have tested my operations against table storage by using REST API and Storage Explorer Tool. Here is my test result, you could refer to it.
Table Storage Analytics logging
Table Storage Metrics
As noted in this document:
As requests are logged, Storage Analytics will upload intermediate results as blocks. Periodically, Storage Analytics will commit these blocks and make them available as a blob.
In summary, please follow this tutorial to enable and configure Storage Analytics, then wait for some time and check your table storage logging.
If you are leveraging the Azure Activity log, remember that it is meant for control plane operations. So listkeys would show up there.
if you are looking for data plane operations (such as entity writes into a table), then make sure Diagnostics are turned on inside the Storage account that you are writing to.
Azure Activity Log is only for management plane records through Azure Resource Manager (ARM), specifically PUT/DELETE/POST which includes ListKeys which is an HTTP POST.
For storage analytics logging, you can use this article to see the types of data logged.
I store logs from Azure Web App and Redis Cache in Storage Accounts, but I wonder, what is the best way to analyze them?
Redis seems to store diagnostics information in WADMetrics* tables, while web app puts into storage .csv and .log files, but I dont see any of those as option under the Log Analytics > Workspace data sources > Storage account logs.
Is there a standard (Azure) way to consume, analyze and (preferably) automatically act upon content of those logs?
Answering my own question, based on the investigation I did so far, maybe it will help someone :)
Log Analytics doesn't digest the log data from web apps (I have no idea why, since they seem to be rather standard IIS logs)
The only reasonable way I found to consume and analyze log data is with Power BI. You can easily setup Storage account as the data source and then massage the data and get the reports you need.
So far I didn't come up with a way to generate alerts based on the content of logs without using tools like Splunk or Sumologic.
I am trying to implement azure storage metrics code in my role but i am checking if there is easy way to get azure storage metric data about my files usage. my code is stable and i do not want to change code again.
Actually if you already have Windows Azure role running, then you don't need to make any changes to your code and you still can get Windows Azure Blob storage Metrics data.
I have written a blog about it last time as Collecting Windows Azure Storage REST API level metrics data without a single line of programming, just by using tools
Please try above and see if this works for you.
Storage analytics is disabled by default, so any operations against your storage up til now has not been logged for analysis.
You may choose to enable analytics at any time, for both logging (detailed access information for every single object) and metrics (hourly rollups). Further, you may choose which specific storage service to track (blobs, tables, queues) and which operations to track (read, write, delete). Once analytics are enabled, you may access the resulting analytics data from any app (as long as you have the storage account name + key).
Persistent Systems just published a blog post on enabling storage analytics for Java apps. The same principles may be applied to a .net app (and the sdk's are very similar).
Additionally, Full Scale 180 published a sample app encapsulating storage analytics (based on REST API, as it was written before SDK v1.6 came out).