Manage statistics using the CLI
This page describes how to manage the statistics using the GUI.
Using the GUI, 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 | Type | Value | Limitations | Mandatory | Default |
| String | Name or category fo filter by | Valid name or category | No | |
| Boolean | Also displays internal statistics | No | False |
View statistics in real-time
Command: weka stats realtime
Use the following command line to obtain the current performance-related statistics of the hosts in a one-second interval:
weka stats realtime [<node-ids>] [--raw-units] [--UTC]
Parameters
Name | Type | Value | Limitations | Mandatory | Default |
| Comma-separated strings | Only show realtime stats of these nodes | No | ||
| Boolean | Print values in raw units (bytes, seconds, etc.) | No | Human-readable format, e.g 1KiB 234MiB 2GiB | |
| Boolean | Print times in UTC | No | Host'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.
Note: 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] [--node-ids node-ids] [--param param] [--accumulated] [--per-node] [--no-zeros] [--show-internal] [--raw-units] [--UTC]
Parameters
Name | Type | Value | Limitations | Mandatory | Default |
| String | 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 | No | -1m |
| String | 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 | No | Current time |
| String | Period of time to be reported | Valid interval in seconds (positive integer number) | Yes | |
| String | Length of each interval in the reported period | Must be multiples of 60 seconds | No | 60 |
| String | Specific categories for retrieval of appropriate statistics | Valid existing categories: CPU, Object Store, Operations, Operations (NFS), Operations (Driver), SSD | No | All |
| String | Statistics names | Valid statistics names | No | All |
| String | Node id | Valid node-id | No | All |
| String | 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: | No | |
| Boolean | Display accumulated statistics, not rate statistics | No | False | |
| Boolean | Does not aggregate statistics across nodes | No | False | |
| Boolean | Filters results where the value is 0 | No | False | |
| Boolean | Also displays internal statistics | No | False | |
| Boolean | Print values in raw units (bytes, seconds, etc.) | No | Human-readable format, e.g 1KiB 234MiB 2GiB | |
| Boolean | Print times in UTC | No | Host'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
Name | Type | Value | Limitations | Mandatory | Default |
| Number | The Number of days to keep the statistics | Should have enough free disk space per server | Yes | |
| Boolean | Only test the required capacity per the retention period | No |
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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