Erasure Code Calculator
Reference Hardware
mc admin scanner trace
Description
The mc admin scanner trace command displays scanner-specific API operations occurring on the target MinIO deployment.
Use mc admin on MinIO Deployments Only
MinIO does not support using mc admin commands with other
S3-compatible services, regardless of their claimed compatibility with MinIO
deployments.
The following example returns a list of API operations related to the scanner on the myminio deployment.
mc admin scanner trace myminio
The command has the following syntax:
mc admin scanner trace ALIAS
[--filter-request] \
[--filter-response] \
[--filter-size <value>] \
[--funcname <value>] \
[--node <value>] \
[--path <value>] \
[--response-duration <value>] \
[--verbose, -v]
Brackets
[]indicate optional parameters.Parameters sharing a line are mutually dependent.
Parameters separated using the pipe
|operator are mutually exclusive.
Copy the example to a text editor and modify as-needed before running the command in the terminal/shell.
Parameters
- --filter-request
- Optional
Trace scanner operations or calls with request size greater than the specified
--filter-sizevalue.Must be used with
--filter-sizeflag.
- --filter-response
- Optional
Trace scanner operations or calls with response size greater than the specified
--filter-sizevalue.Must be used with
--filter-sizeflag.
- --filter-size
- Optional
Filter output to request sizes or response sizes greater than the specified size.
Must be used with either
--filter-requestor--filter-responseflag.Valid units include:
Suffix
Unit Size
kKB (Kilobyte, 1000 Bytes)
mMB (Megabyte, 1000 Kilobytes)
gGB (Gigabyte, 1000 Megabytes)
tTB (Terrabyte, 1000 Gigabytes)
kiKiB (Kibibyte, 1024 Bites)
miMiB (Mebibyte, 1024 Kibibytes)
giGiB (Gibibyte, 1024 Mebibytes)
tiTiB (Tebibyte, 1024 Gibibytes)
Global Flags
This command supports any of the global flags.
Examples
Monitor all scanner API operations
Use mc admin scanner trace to monitor scanner API operations on the MinIO deployment at the alias myminio:
mc admin scanner trace myminio
Show scanner trace for a specific path
Use mc admin scanner trace to monitor API operations for a the path my-bucket/my-prefix/* on the deployment at the myminio alias:
mc admin scanner trace --path my-bucket/my-prefix/* myminio
Show scanner API operations for the scanObject function
Monitor scanner activity for the scanObject function on the myminio deployment:
mc admin scanner trace --funcname=scanner.ScanObject myminio
Show scanner operation requests greater than 1MB in size
Use mc admin scanner trace to monitor requests larger than a 1MB on the myminio deployment:
mc admin scanner trace --filter-request --filter-size 1MB myminio
Show scanner operation responses greater than 1MB in size
Use mc admin scanner trace to monitor large response sizes:
mc admin scanner trace --filter-response --filter-size 1MB myminio
Show scanner operations that last longer than five milliseconds
Use mc admin scanner trace to monitor long operations:
mc admin scanner trace --response-duration 5ms myminio
