1 / 27

Windows Azure Diagnostics

camila
Download Presentation

Windows Azure Diagnostics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    2. Windows Azure Diagnostics Andy Cross

    3. Overview Diagnostics in Windows Azure Application Level Service Level Operating System Level

    4. Example Log Usage Application: Error: Cannot save Order Service: Error: IO Exception OS: Error: Disk is full

    5. Whats special? Familiar diagnostic challenges Already solved on premises Massively scalable No request affinity Unpredictable application topology Where do the logs go?! Centralised Logging approach

    6. What you need Hosted Service: Compute capacity within Windows Azure Storage Account: Storage capacity within Windows Azure Table Blobs Centralised store in StorageCentralised store in Storage

    7. Windows Azure Diagnostics Each Role Configurable Diagnostics Monitor Each Instance inherits configuration

    8. Example Trace Points Application .net application Tracing custom Files written via nLog, log4net etc Windows Event Log Service IIS Logs IIS Failed Request Logs Azure Diagnostics Infrastructure Logs Metalog Performance Counters Operating System Windows Event Log Custom (any known file log)

    9. Configuration Set options on types Directories Logs Performance Counters Storage Options Some types allow a configurable destination Transfer Period Maximum Buffer Size

    10. Transfer Two distinct methods of transfer Same underlying result On Demand Transfer Scheduled Transfer

    11. Output formats

    12. Methodologies .net Tracing Add Trace Listener Configure WAD View Result:

    13. Logging per Instance Logs on Instance Basis: RoleInstance: deployment(526).MultipleTraceSources.Host_IN_0 DeploymentId.Role.Instance Allows for per instance diagnosis

    14. Configure Windows Azure Diagnostics Setup Storage Account Create Role Instance Diagnostics Manager Get and update a configuration from Manager Set Current Configuration

    15. Example Code

    16. Extended Code

    17. Verbosity Code is building XML WADCFG Structure based on XML Schema Not necessarily intuitive

    18. Fluent Diagnostics Attempts to curtail verbosity

    19. Windows Azure Role Lifecycle Each Role runs OnStart Run OnStop Setup Diagnostics OnStart always correct for that role But if you change the config, another OnStart will undo your changes

    20. Change at Runtime WAPPSCmdlets

    21. Diagnostics Lifecycle

    22. Diagnostics Lifecycle

    23. Diagnostics Lifecycle Why do we see this behaviour? Increase Instance Count New Instance added by Fabric Instance goes through OnStart!

    24. Fluent Diagnostics Allows you to use programmatic approach still Uses Marker XML Prevents further updates for a deployment

    25. Diagnostics Lifecycle

    26. How to view Diagnostics Raw in Tables, as shown before. Cerebrata Azure Diagnostics Manager

    27. Q&A Many thanks. Check out my blog: http://blog.bareweb.eu Questions and Answers session

More Related