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Filesystem monitoringFilesystem monitoring
Filesystem monitoring

Filesystem monitoring

Monitor your files and folders.

Extension
Free trialDocumentation
  • Product information
  • Release notes

Overview

filesystem extension, monitor your files on Windows and Linux OneAgent installations.

Targeting can be done by host, host group, management zone or environment. Tags can be applied to segregate your configurations (100 configurations maximum).

For each path check, Dynatrace will create an entity and link it to the matching host. This way, extension filtering and tagging is possible to view your data. The same can be done with alerts.

Checks can be disabled for specific days and at specific times.

Metrics:

  • File count: Number of files matching a pattern

  • File age count: Number of files matching a pattern and an age

  • File age: Age of a specific file (oldest or newest when returning more than 1 file)

  • File size: Size of the files in bytes

  • Mount point: Is a mount point mounted on Unix NFS

Use cases

Path examples:

  • Count the number of log files inside /var/log/myapp
    Select check type = count
    Path = /var/log/myapp/*.log
  • Count the number of log files inside c:\temp
    Select check type = count
    Path = c:\temp*.log
  • Count the number of logs files inside /var/log/myapp and any subdirectories
    Select check type = count
    Path = /var/log/myapp/**/*.log
  • Does the directory mydir inside /tmp exist?
    Select check type = count
    Path /tmp/mydir
    Ensure that the count directories toggle is enabled
  • Count the number of files inside /tmp
    Select check type = count
    Path = /tmp/*
  • Return the total size of all files files inside /var/log/myapp
    Select check type = size
    Path = /var/log/myapp/*
  • Return the age of the oldest file in /tmp/test/
    Select check type = modification age
    Unselect user newest file
    Path = /tmp/test/*
  • Return the number of log files older than 1 hour in /tmp/test
    Select check type = modification age count
    Set Age comparison operator to Older than
    Set the threshold to 60
    Path = /tmp/test/*.log
  • Check if /data/mount-data is mounted
    Select check type = mount point
    Path = /data/mount-data
  • Check that today's log has been produced: /var/mylog20222211.log
    Select check type = count
    Path = /var/mylogYYYYMMDD.log
    Accepts DDMMYYYY, DD-MM-YYYY, DD_MM_YYYY, YYYYMMDD. YYYY-MM-DD, YYYY_MM_DD.
    The date will be the local date where the OneAgent/extension is running.

Schedules:

When schedule is not selected, the check will run 24/7.
If the check should not be performed on a Sunday, select schedule and untick Sunday.

Time windows can be added by entering the start time (use semi colon for multiple windows).
For each time, the schedule duration field will be added to determine the end. See example for only running from 10:00 and 12:00 for 1 hour.

Schedule

File system types

Local File Systems

  • On Linux the extension supports local file systems as long as the dtuser account can see the files. The file must be at least readable by the dtuser if not, it will be invisible to the extension. If you wish to use another account then use the run_as functionality to sudo -u <username> to switch to a user with permissions.

  • On Windows, The file must be at least readable by LOCAL SERVICE if not, it will be invisible to the extension.

NFS

  • On Linux ensure dtuser or the run_as user has permissions.
  • On Windows you are able to see NFS drives ** ONLY IF ** if you run_as another user and enter their information or choose the account from credential vault to run the checks as.
    • Only standard NFS drives connected via Windows Explorer are supported.

Azure Blob storage is supported. When selected, 2 new fields will appear. The azure account and the key.
Ensure that there is connectivity with azure from the oneAgent.

Run As additional information

Windows Run As

  • On Windows run as the user must be able to login locally.
    • Logon Type policy change to allow type 2
  • If you are using a local user for the domain enter prefix the username with ".\" example: .\username

Linux Run As

  • sudo
    • When no username is entered dtuser will run sudo on the checks to elevate privileges.
      • Ensure dtuser has sudo permissions and is setup passwordless in the sudoers file.
    • If you enter a username, it will run sudo -u <username> command However, sudo requires the calling user to have permissions. dtuser must be setup passwordless as before above.
  • sesu
    • A username must be entered. This account being used must be setup to be run passwordless. it will run sesu -<user> -c command

Compatibility information

This a OneAgent extension compatible with Windows and Linux.
Cluster version 1.254 and OneAgent 1.249 minimum.

Azure blob storage is supported

Dynatrace
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By Dynatrace
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Extension content

Content typeNumber of items included
metric metadata
5
generic type
1

Full version history

To have more information on how to install the downloaded package, please follow the instructions on this page.
ReleaseDate

Full version history

New Features

  • sesu has been added in the assume user options for linux hosts.

Full version history

Bugfix

  • run_as Linux: dtuser correctly calls sudo when a username is omitted.

Full version history

New Feature

  • Run As functionality implemented in Linux.
    • This uses sudo when running checks. Which will call sudo as dtuser. But if the username field has a value it will run sudo -u <username>

Bug Fixes

  • Modification Age check has been fixed on glob patterns, now returns correct age.

Full version history

  • Improves feel of monitoring configuration screen by moving check descriptions to Check type field tooltip

Full version history

BugFix

  • Run_As functionality works as expected again

Full version history

New Features

  • Added ability to enrich metrics with up to 3 additional metadata fields

Full version history

New Feature

  • 3 new dynamic dates where the month is a 3 character identifier
    • DDMMMYYYY ex: 17MAR2025
    • DDMmmYYYY ex: 17Mar2025
    • DDmmmYYYY ex: 12mar2025

Bug Fixes

General

  • AzureFileCount works again.

Run_As bugfixes

  • Spaces in FileName will no longer break checks
  • Backslashes no longer disappear on the path dimension upon ingest to tenant
  • Logging Fix

Full version history

New feature

  • Now has the ability to run as another user on windows hosts.
  • Running as user with permission to access network drives on windows hosts you are now able to query those network drives with selected check.

Full version history

Fixed metric file age count when a file is modified during the check.

Full version history

Added detection of modification time on folders.
Use /tmp/myfolder as path (with no wildcard) to return the most recently modified file date inside the folder.
Useful when files are very transient (appear less than 60 seconds) or with a very large number of files (no scanning required).

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