Paulo Roberto de Oliveira Castro created SPARK-33564:
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Summary: Prometheus metrics for Master and Worker isn't working
Key: SPARK-33564
URL: https://issues.apache.org/jira/browse/SPARK-33564
Project: Spark
Issue Type: Bug
Components: Spark Core, Spark Shell
Affects Versions: 3.0.1, 3.0.0
Reporter: Paulo Roberto de Oliveira Castro
Following the [PR|https://github.com/apache/spark/pull/25769] that introduced
the Prometheus sink, I downloaded the {{spark-3.0.1-bin-hadoop2.7.tgz}} (also
tested with 3.0.0), uncompressed the tgz and created a file called
{{metrics.properties __ }}adding this content:
{{}}
{{*.sink.prometheusServlet.class=org.apache.spark.metrics.sink.PrometheusServlet}}
{{*.sink.prometheusServlet.path=/metrics/prometheus
master.sink.prometheusServlet.path=/metrics/master/prometheus
applications.sink.prometheusServlet.path=/metrics/applications/prometheus}}
Then I ran:
{{$ sbin/start-master.sh}}
{{$ sbin/start-slave.sh spark://`hostname`:7077}}
{{$ bin/spark-shell --master spark://`hostname`:7077
--files=./metrics.properties --conf spark.metrics.conf=./metrics.properties}}
{{The Spark shell opens without problems:}}
{{}}
{quote}20/11/25 17:36:07 WARN NativeCodeLoader: Unable to load native-hadoop
library for your platform... using builtin-java classes where applicable
{{}}
Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties
{{}}
Setting default log level to "WARN".
{{}}
To adjust logging level use sc.setLogLevel(newLevel). For SparkR, use
setLogLevel(newLevel).
{{}}
Spark context Web UI available at http://192.168.0.6:4040
{{}}
Spark context available as 'sc' (master =
spark://MacBook-Pro-de-Paulo-2.local:7077, app id = app-20201125173618-0002).
{{}}
Spark session available as 'spark'.
{{}}
Welcome to
{{}}
____ __
{{}}
/ __/__ ___ _____/ /__
{{}}
_\ \/ _ \/ _ `/ __/ '_/
{{}}
/___/ .__/\_,_/_/ /_/\_\ version 3.0.0
{{}}
/_/
{{}}
{{}}
Using Scala version 2.12.10 (OpenJDK 64-Bit Server VM, Java 1.8.0_212)
{{}}
Type in expressions to have them evaluated.
{{}}
Type :help for more information.
{{}}
{{}}
scala>
{quote}
{{And when I try to fetch prometheus metrics for driver, everything works
fine:}}
{quote}$ curl -s http://localhost:4040/metrics/prometheus/ | head -n 5
metrics_app_20201125173618_0002_driver_BlockManager_disk_diskSpaceUsed_MB_Number\{type="gauges"}
0
metrics_app_20201125173618_0002_driver_BlockManager_disk_diskSpaceUsed_MB_Value\{type="gauges"}
0
metrics_app_20201125173618_0002_driver_BlockManager_memory_maxMem_MB_Number\{type="gauges"}
732
metrics_app_20201125173618_0002_driver_BlockManager_memory_maxMem_MB_Value\{type="gauges"}
732
metrics_app_20201125173618_0002_driver_BlockManager_memory_maxOffHeapMem_MB_Number\{type="gauges"}
0
{quote}
*The problem appears when I try accessing master metrics*, and I get the
following problem:
{quote}$ curl -s http://localhost:8080/metrics/master/prometheus
<!DOCTYPE html><html>
<head>
<meta http-equiv="Content-type" content="text/html;
charset=utf-8"/><link rel="stylesheet" href="/static/bootstrap.min.css"
type="text/css"/><link rel="stylesheet"
href="/static/vis-timeline-graph2d.min.css" type="text/css"/><link
rel="stylesheet" href="/static/webui.css" type="text/css"/><link
rel="stylesheet" href="/static/timeline-view.css" type="text/css"/><script
src="/static/sorttable.js"></script><script
src="/static/jquery-3.4.1.min.js"></script><script
src="/static/vis-timeline-graph2d.min.js"></script><script
src="/static/bootstrap-tooltip.js"></script><script
src="/static/initialize-tooltips.js"></script><script
src="/static/table.js"></script><script
src="/static/timeline-view.js"></script><script
src="/static/log-view.js"></script><script
src="/static/webui.js"></script><script>setUIRoot('')</script>
<link rel="shortcut icon"
href="/static/spark-logo-77x50px-hd.png"></link>
<title>Spark Master at spark://MacBook-Pro-de-Paulo-2.local:7077</title>
</head>
<body>
<div class="container-fluid">
<div class="row-fluid">
<div class="span12">
<h3 style="vertical-align: middle; display: inline-block;">
<a style="text-decoration: none" href="/">
<img src="/static/spark-logo-77x50px-hd.png"/>
<span class="version" style="margin-right: 15px;">3.0.0</span>
</a>
Spark Master at spark://MacBook-Pro-de-Paulo-2.local:7077
</h3>
</div>
</div>
<div class="row-fluid">
<div class="span12">
<ul class="unstyled">
<li><strong>URL:</strong>
spark://MacBook-Pro-de-Paulo-2.local:7077</li>
...
{quote}
The same happens for all of those here:
{quote}{{$ curl -s [http://localhost:8080/metrics/applications/prometheus/]}}
{{$ curl -s [http://localhost:8081/metrics/prometheus/]}}
{quote}
Instead, *I expected metrics in prometheus metrics*. All related JSON endpoints
seem to be working fine.
{{}}
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