4 title: Analyzing workflow cost (cloud only)
7 Copyright (C) The Arvados Authors. All rights reserved.
9 SPDX-License-Identifier: CC-BY-SA-3.0
12 {% include 'tutorial_expectations' %}
14 {% include 'notebox_begin' %}
16 This is only applicable when Arvados runs in a cloud environment and @arvados-dispatch-cloud@ is used to dispatch @crunch@ jobs. The per node-hour price for each defined InstanceType most be supplied in "config.yml":{{site.baseurl}}/admin/config.html.
18 {% include 'notebox_end' %}
20 The @arvados-client@ program can be used to analyze the cost of a workflow. It can be installed from packages (@apt install arvados-client@ or @yum install arvados-client@). The @arvados-client costanalyzer@ command analyzes the cost accounting information associated with Arvados container requests.
24 The @arvados-client costanalyzer@ tool has a number of command line arguments:
27 <pre><code>~$ <span class="userinput">arvados-client costanalyzer -h</span>
29 ./arvados-client costanalyzer [options ...] [UUID ...]
31 This program analyzes the cost of Arvados container requests and calculates
32 the total cost across all requests. At least one UUID or a timestamp range
35 When the '-output' option is specified, a set of CSV files with cost details
36 will be written to the provided directory. Each file is a CSV report that lists
37 all the containers used to fulfill the container request, together with the
38 machine type and cost of each container.
40 When supplied with the UUID of a container request, it will calculate the
41 cost of that container request and all its children.
43 When supplied with the UUID of a collection, it will see if there is a
44 container_request UUID in the properties of the collection, and if so, it
45 will calculate the cost of that container request and all its children.
47 When supplied with a project UUID or when supplied with multiple container
48 request or collection UUIDs, it will calculate the total cost for all
51 When supplied with a 'begin' and 'end' timestamp (format:
52 2006-01-02T15:04:05), it will calculate the cost for all top-level container
53 requests whose containers finished during the specified interval.
55 The total cost calculation takes container reuse into account: if a container
56 was reused between several container requests, its cost will only be counted
61 - This program uses the cost data from config.yml at the time of the
62 execution of the container, stored in the 'node.json' file in its log
63 collection. If the cost data was not correctly configured at the time the
64 container was executed, the output from this program will be incorrect.
66 - If a container was run on a preemptible ("spot") instance, the cost data
67 reported by this program may be wildly inaccurate, because it does not have
68 access to the spot pricing in effect for the node then the container ran. The
69 UUID report file that is generated when the '-output' option is specified has
70 a column that indicates the preemptible state of the instance that ran the
73 - This program does not take into account overhead costs like the time spent
74 starting and stopping compute nodes that run containers, the cost of the
75 permanent cloud nodes that provide the Arvados services, the cost of data
76 stored in Arvados, etc.
78 - When provided with a project UUID, subprojects will not be considered.
80 In order to get the data for the UUIDs supplied, the ARVADOS_API_HOST and
81 ARVADOS_API_TOKEN environment variables must be set.
83 This program prints the total dollar amount from the aggregate cost
84 accounting across all provided UUIDs on stdout.
88 timestamp begin for date range operation (format: 2006-01-02T15:04:05)
90 create and use a local disk cache of Arvados objects (default true)
92 timestamp end for date range operation (format: 2006-01-02T15:04:05)
94 logging level (debug, info, ...) (default "info")
96 output directory for the CSV reports