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Add monitorType JMX #472

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Add monitorType JMX #472

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alaturqua
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Description

This pull request introduces a new monitorType for JMX-based monitoring in Trino Gateway. It includes documentation and configuration details for retrieving cluster information using specific JMX metrics.

Details

  • Component: JMX Monitoring in Trino Gateway

  • New Feature: Added support for monitorType: JMX to enable cluster monitoring via JMX metrics.

  • Metrics Used:

    • trino.execution:name=QueryManager
    • trino.metadata:name=DiscoveryNodeManager

  • Configuration Instructions:

    • Users can configure a username and password using backendState.
    • Credentials must be valid across all clusters with read rights on system_information.

  • Example Configuration:

    backendState:
  username: "user"
  password: "password"
clusterStatsConfiguration:
  monitorType: JMX

Additional context and related issues

Release notes

( ) This is not user-visible or is docs only, and no release notes are required.
(x) Release notes are required. Please propose a release note for me.
( ) Release notes are required, with the following suggested text:

*

@cla-bot cla-bot bot added the cla-signed label Sep 17, 2024
@alaturqua
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I am not very experienced with Java and Testing in Java. Please feel free to add tests.

@alaturqua alaturqua changed the title Add monitorType JMX via trino's /v1/jmx/mbean endpoint Add monitorType JMX Sep 17, 2024
ebyhr
ebyhr reviewed Sep 21, 2024
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gateway-ha/src/main/java/io/trino/gateway/ha/config/ClusterStatsMonitorType.java
@@ -18,5 +18,6 @@ public enum ClusterStatsMonitorType
NOOP,
INFO_API,
UI_API,
JDBC
JDBC,
JMX
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Could you explain why existing monitor types don't work well in your environment?

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@alaturqua alaturqua Sep 23, 2024 •
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We are using oauth for web-ui on trino and QueryCountBasedRouter on Trino Gateway, which requires ClusterStats regarding running and queued queries.

  • UI_API does not work because of the Oauth
  • JDBC works but often ClusterStats queries go into queue and they time out if it takes longer than 10 secs. This makes Trino Gateway throw 500 erros if it happens on adhoc cluster
  • JMX is working flawlessly now, I implemented it. This could be the temporary solution, until Trino exposes required stats behind /v1/api

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@ebyhr ebyhr Sep 25, 2024 •
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Thanks for your explanation.

I don't think we want to document it if it's the temporary solution. Please revret changes in docs/installation.md.

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Done

ebyhr
ebyhr reviewed Sep 27, 2024
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Just skimmed.

gateway-ha/src/main/java/io/trino/gateway/ha/clustermonitor/ClusterStatsJmxMonitor.java
@@ -0,0 +1,153 @@
/*
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We should add tests even if this is a temporary solution.

gateway-ha/src/main/java/io/trino/gateway/ha/handler/QueryIdCachingProxyHandler.java
@@ -26,6 +26,7 @@ public class QueryIdCachingProxyHandler
public static final String OAUTH_PATH = "/oauth2";
public static final String AUTHORIZATION = "Authorization";
public static final String USER_HEADER = "X-Trino-User";
public static final String JMX_PATH = "/v1/jmx/mbean";
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Move to ClusterStatsJmxMonitor class.

gateway-ha/src/main/java/io/trino/gateway/ha/clustermonitor/ClusterStatsJmxMonitor.java
{
String jmxUrl = backend.getProxyTo() + JMX_PATH + "/" + mbeanName;
log.debug("Querying JMX at URL: %s", jmxUrl);
OkHttpClient client = new OkHttpClient.Builder().build();
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Why not use airlift HTTP client?

gateway-ha/src/main/java/io/trino/gateway/ha/clustermonitor/ClusterStatsJmxMonitor.java

Call call = client.newCall(request);

try (Response res = call.execute()) {
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Please avoid abbreviations. https://github.com/trinodb/trino/blob/master/.github/DEVELOPMENT.md#avoid-abbreviations

andythsu
andythsu reviewed Oct 14, 2024
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gateway-ha/src/main/java/io/trino/gateway/ha/clustermonitor/ClusterStatsJmxMonitor.java
Call call = client.newCall(request);

try (Response res = call.execute()) {
if (fromStatusCode(res.code()) == io.airlift.http.client.HttpStatus.OK) {
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it'd be more concise if we can import io.airlift.http.client.HttpStatus

@alaturqua
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Thanks for the reviews. I was on vacation and didn't have time to implement the requested changes yet. I will take care of them in the next days.

I might need some support to activate the /v1/jmx/mbean endpoint in the test environment for testing.

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@ebyhr ebyhr ebyhr left review comments

@andythsu andythsu andythsu left review comments

@mosabua mosabua Awaiting requested review from mosabua

@willmostly willmostly Awaiting requested review from willmostly

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@alaturqua @ebyhr @andythsu @willmostly