tools/metrics/histograms/metadata/cros/histograms.xml

<!--
Copyright 2020 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->

<!--
This file is used to generate a comprehensive list of Cros histograms
along with a detailed description for each histogram.

For best practices on writing histogram descriptions, see
https://chromium.googlesource.com/chromium/src.git/+/HEAD/tools/metrics/histograms/README.md

Please follow the instructions in the OWNERS file in this directory to find a
reviewer. If no OWNERS file exists, please consider signing up at
go/reviewing-metrics (Googlers only), as all subdirectories are expected to
have an OWNERS file. As a last resort you can send the CL to
chromium-metrics-reviews@google.com.
-->

<histogram-configuration>

<histograms>

<histogram name="Cros.AppsSyncOptinFileWriteAttempts"
    enum="AppsSyncOptinFileWrite" expires_after="2024-01-30">
  <owner>drmasquatch@google.com</owner>
  <owner>clumptini@google.com</owner>
  <summary>
    Logs attempts to write a user's opt-in status for Apps Sync to disk, as well
    as failures.
  </summary>
</histogram>

<histogram name="Cros.CrOSActionRecorderEvent" enum="CrOSActionRecorderEvent"
    expires_after="2022-05-01">
  <owner>charleszhao@chromium.org</owner>
  <owner>tby@chromium.org</owner>
  <summary>
    This histogram is emitted each time when CrOSAction is recorded by the
    CrOSActionRecorder. For each CrOSAction multiple values can be emitted,
    corresponding to different events happened during the action processing by
    CrOSActionRecorder.
  </summary>
</histogram>

<histogram name="CrosDisks.ArchiveType" enum="CrosDisksArchiveType"
    expires_after="2024-04-01">
  <owner>fdegros@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    Archive type that the ChromeOS cros-disks daemon is requested to mount.
  </summary>
</histogram>

<histogram name="CrosDisks.DeviceMediaType" enum="CrosDisksDeviceMediaType"
    expires_after="2024-04-01">
  <owner>fdegros@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    Media type of removable device that the ChromeOS cros-disks daemon is
    requested to mount.
  </summary>
</histogram>

<histogram name="CrosDisks.FilesystemType" enum="CrosDisksFilesystemType"
    expires_after="2024-04-01">
  <owner>fdegros@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    File system type of external media that the ChromeOS cros-disks daemon is
    requested to mount.
  </summary>
</histogram>

<histogram name="CrosDisks.Fuse.FuseArchive" enum="FuseArchiveError"
    expires_after="2024-04-01">
  <owner>fdegros@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    Error returned by the fuse-archive program, which is called every time a
    user opens various archive files in ChromeOS Files App.
  </summary>
</histogram>

<histogram name="CrosDisks.Fuse.FuseZip" enum="FuseZipError"
    expires_after="2024-04-01">
  <owner>fdegros@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    Error returned by the ZIP mounting program mount-zip, which is called every
    time a user opens a ZIP archive in ChromeOS Files App.
  </summary>
</histogram>

<histogram name="CrosDisks.Fuse.Rar2fs" enum="Rar2fsError"
    expires_after="2024-04-01">
  <owner>fdegros@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    Error returned by the RAR mounting program rar2fs, which is called every
    time a user opens a RAR archive in ChromeOS Files App.
  </summary>
</histogram>

<histogram name="CrosDisks.MountError.{FileSystem}" enum="PopularOSErrno"
    expires_after="2024-04-01">
  <owner>fdegros@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    The error returned by the mount() system call when the ChromeOS cros-disks
    daemon tries to mount a file system.
  </summary>
  <token key="FileSystem">
    <variant name="ext2"/>
    <variant name="ext3"/>
    <variant name="ext4"/>
    <variant name="fuse"/>
    <variant name="hfsplus"/>
    <variant name="iso9660"/>
    <variant name="udf"/>
    <variant name="vfat"/>
  </token>
</histogram>

<histogram name="CrosDisks.PrematureTermination.{Daemon}" enum="DaemonError"
    expires_after="2024-04-01">
  <owner>fdegros@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    Error returned by a FUSE daemon that unexpectedly terminated (i.e. before
    being requested by cros-disks to unmount and exit).
  </summary>
  <token key="Daemon">
    <variant name="drivefs"/>
    <variant name="fuse-archive"/>
    <variant name="fusebox"/>
    <variant name="mount-exfat-fuse"/>
    <variant name="mount-zip"/>
    <variant name="ntfs-3g"/>
    <variant name="rar2fs"/>
    <variant name="smbfs"/>
    <variant name="sshfs"/>
  </token>
</histogram>

<histogram name="CrosDisks.ReadOnlyFileSystemAfterError"
    enum="CrosDisksFilesystemType" expires_after="2024-04-01">
  <owner>fdegros@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    File system type of external media that the ChromeOS cros-disks daemon had
    to mount in read-only mode because there was an error when trying to mount
    them in read-write mode. See crbug.com/1366204.
  </summary>
</histogram>

<histogram name="CrosDisks.UnmountError.{FileSystem}" enum="PopularOSErrno"
    expires_after="2024-04-01">
  <owner>fdegros@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    The error returned by the umount() system call when the ChromeOS cros-disks
    daemon tries to unmount a file system.
  </summary>
  <token key="FileSystem">
    <variant name="archive"/>
    <variant name="drivefs"/>
    <variant name="exfat"/>
    <variant name="ext2"/>
    <variant name="ext3"/>
    <variant name="ext4"/>
    <variant name="fusebox"/>
    <variant name="hfsplus"/>
    <variant name="iso9660"/>
    <variant name="ntfs"/>
    <variant name="rar"/>
    <variant name="smbfs"/>
    <variant name="sshfs"/>
    <variant name="udf"/>
    <variant name="vfat"/>
    <variant name="zip"/>
  </token>
</histogram>

<histogram name="CrosDisksClient.FormatCompletedError"
    enum="CrosDisksClientFormatError" expires_after="2024-04-01">
  <owner>austinct@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    Error returned by the ChromeOS cros-disks daemon when formatting an external
    drive.
  </summary>
</histogram>

<histogram name="CrosDisksClient.FormatTime" units="ms"
    expires_after="2024-04-01">
  <owner>austinct@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    Time taken by the ChromeOS cros-disks daemon to format an external drive.
  </summary>
</histogram>

<histogram name="CrosDisksClient.MountCompletedError"
    enum="CrosDisksClientMountError" expires_after="2024-04-01">
  <owner>fdegros@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    Error returned by the ChromeOS cros-disks daemon when mounting a file
    system.
  </summary>
</histogram>

<histogram name="CrosDisksClient.MountErrorMountType"
    enum="CrosDisksMountTypeError" expires_after="2024-04-01">
  <owner>fdegros@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    Combination of (mount type, mount error) returned by the ChromeOS cros-disks
    daemon.
  </summary>
</histogram>

<histogram name="CrosDisksClient.MountTime" units="ms"
    expires_after="2024-04-01">
  <owner>fdegros@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    Time taken by the ChromeOS cros-disks daemon to mount a file system.
  </summary>
</histogram>

<histogram name="CrosDisksClient.UnmountError" enum="CrosDisksClientMountError"
    expires_after="2024-04-01">
  <owner>fdegros@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    Error returned by the ChromeOS cros-disks daemon when unmounting a file
    system.
  </summary>
</histogram>

<histogram name="CrosDisksClient.UnmountTime" units="ms"
    expires_after="2024-04-01">
  <owner>fdegros@chromium.org</owner>
  <owner>src/ui/file_manager/OWNERS</owner>
  <summary>
    Time taken by the ChromeOS cros-disks daemon to unmount a file system.
  </summary>
</histogram>

</histograms>

</histogram-configuration>