Manage statistics using the CLI
This page describes how to manage the statistics using the CLI.
Using the CLI, you can:
List statistics types
Command: weka stats list-types
Use the following command line to obtain statistics definition information:
weka stats list-types [<name-or-category>] [--show-internal]
Parameters
name-or-category
Valid name or category to filter by.
show-internal
Also displays internal statistics.
False
View statistics in real-time
Command: weka stats realtime
Use the following command line to obtain the current performance-related statistics of the processes in a one-second interval:
weka stats realtime [<process-ids>] [--raw-units] [--UTC]
Parameters
process-ids
Only show real-time stats of the specified processes in a comma-separated list.
raw-units
Print values in raw units such as bytes and seconds.
Readable format. Examples: 1KiB 234MiB 2GiB.
UTC
Print times in UTC.
Server's local time.
View statistics over time
Command: weka stats
The collected statistics can help analyze system performance and determine the source of issues that may occur during WEKA system runs. Statistics are divided according to categories. When selecting a category, a list of the possible statistics is displayed, from which you can select the specific statistics.
WEKA averages all statistics over one-second intervals. Consequently, the total value or other aggregates relate to a specific minute.
Use the following command line to manage filters and read statistics:
weka stats [--start-time <start-time>] [--end-time <end-time>] [--interval interval] [--resolution-secs resolution-secs] [--category category][--stat stat] [--process-ids process-ids] [--param param] [--accumulated] [--per-process] [--no-zeros] [--show-internal] [--raw-units] [--UTC]
Parameters
start-time
Start time of the reported period.
Format: 5m, -5m, -1d, -1w, 1:00, 01:00, 18:30, 18:30:07, 2018-12-31 10:00, 2018/12/31 10:00, 2018-12-31T10:00, 9:15Z, 10:00+2:00.
-1m
end-time
End time of the reported period.
Format: 5m, -5m, -1d, -1w, 1:00, 01:00, 18:30, 18:30:07, 2018-12-31 10:00, 2018/12/31 10:00, 2018-12-31T10:00, 9:15Z, 10:00+2:00.
Current time
interval*
Period of time to be reported. Valid interval in seconds (positive integer number).
resolution-secs
Length of each interval in the reported period. Must be multiples of 60 seconds
60
category
Specific categories for retrieval of appropriate statistics. Valid existing categories: CPU, Object Store, Operations, Operations (NFS), Operations (Driver), SSD.
All
stat
Valid statistics names
All
process-ids
Valid process id
All
param
For parameterized statistics, retrieve only the instantiations where the specified parameter is of the specified value. Multiple values can be supplied for the same key, e.g. '--param method:putBlocks --param method:initBlock'
Format: key:val
accumulated
Display accumulated statistics, not rate statistics
False
per-process
Does not aggregate statistics across processes
False
no-zeros
Filters results where the value is 0
False
show-internal
Also displays internal statistics
False
raw-units
Print values in raw units such as bytes and seconds.
Readable format. Examples: 1KiB 234MiB 2GiB.
UTC
Print times in UTC
Server's local time.
Set statistics retention
Command: weka stats retention set
Use the following command line to set the statistics retention period.
weka stats retention set <--days days> [--dry-run]
Parameters
days*
Number of days to keep the statistics. Ensure sufficient free disk space per server and the specified number of days.
dry-run
Only tests the required capacity per the retention period.
Use weka stats retention status to view the current retention and weka stats retention restore-default to restore the default retention settings.
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