Feature/QuerySandbox(ResourceLimitGroup) Add sandbox schema and tracking framework #13311

kaushalmahi12 · 2024-04-19T17:59:28Z

Description

As part of limiting the resource usage to the group of queries(Query Sandboxing/resourceLimitGroups). The feature is broken down into 3 independent parts.

CRUD APIs (Will go into the Plugin)
Request Tagging/Classification (Will go into the Plugin)
Tracking and Monitoring

This change sets up the tracking and monitoring framework which consists of

Schema for defining these groups/sandboxes
Service which will run on a 1 second interval. This class is not functional as it needs to be added in the Node.java
Service level settings
Logic to propagate the sandbox/resourceLimitGroup from coordinator to data nodes.

Remaining Changes

Will add the Tests for Service once the CRUD APIs are raised and merged
ResourceTracking tests once CRUD APIs are raised and merged
Enable the service

Related Issues

Resolves #[Issue number to be closed when this PR is merged]

Check List

New functionality includes testing.
- All tests pass
New functionality has been documented.
- New functionality has javadoc added
Failing checks are inspected and point to the corresponding known issue(s) (See: Troubleshooting Failing Builds)
Commits are signed per the DCO using --signoff
Commit changes are listed out in CHANGELOG.md file (See: Changelog)
Public documentation issue/PR created

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

Signed-off-by: Kaushal Kumar <[email protected]>

…odes Signed-off-by: Kaushal Kumar <[email protected]>

Signed-off-by: Kaushal Kumar <[email protected]>

github-actions · 2024-04-19T18:46:44Z

✅ Gradle check result for 5ba7535: SUCCESS

codecov · 2024-04-19T18:49:41Z

Codecov Report

Attention: Patch coverage is 50.50167% with 148 lines in your changes missing coverage. Please review.

Project coverage is 71.28%. Comparing base (b15cb0c) to head (5ba7535).
Report is 373 commits behind head on main.

❗ Current head 5ba7535 differs from pull request most recent head 3afd9db

Please upload reports for the commit 3afd9db to get more accurate results.

Files	Patch %	Lines
...esourceLimitsGroupResourceUsageTrackerService.java	0.00%	41 Missing ⚠️
...h/cluster/metadata/ResourceLimitGroupMetadata.java	38.29%	29 Missing ⚠️
...esource_limit_group/ResourceLimitGroupService.java	0.00%	23 Missing ⚠️
...java/org/opensearch/cluster/metadata/Metadata.java	0.00%	18 Missing ⚠️
...limit_group/ResourceLimitGroupServiceSettings.java	62.79%	14 Missing and 2 partials ⚠️
...pensearch/cluster/metadata/ResourceLimitGroup.java	92.39%	2 Missing and 5 partials ⚠️
...e_limit_group/module/ResourceLimitGroupModule.java	0.00%	5 Missing ⚠️
...va/org/opensearch/action/search/SearchRequest.java	55.55%	2 Missing and 2 partials ⚠️
...pensearch/rest/action/search/RestSearchAction.java	0.00%	1 Missing and 1 partial ⚠️
...opensearch/search/internal/ShardSearchRequest.java	75.00%	0 Missing and 2 partials ⚠️
... and 1 more

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #13311      +/-   ##
============================================
- Coverage     71.42%   71.28%   -0.14%     
- Complexity    59978    60609     +631     
============================================
  Files          4985     5045      +60     
  Lines        282275   285730    +3455     
  Branches      40946    41358     +412     
============================================
+ Hits         201603   203685    +2082     
- Misses        63999    65152    +1153     
- Partials      16673    16893     +220

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

Signed-off-by: Kaushal Kumar <[email protected]>

github-actions · 2024-04-22T21:04:27Z

❌ Gradle check result for d2a19ee: null

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

jainankitk

We don't have the logic for request rejection in this PR, right?

jainankitk · 2024-04-25T19:45:11Z

server/src/main/java/org/opensearch/action/search/SearchShardTask.java

+
+    public String getResourceLimitGroupName() {
+        return resourceLimitGroupId;
+    }
+
+    public void setResourceLimitGroupName(String resourceLimitGroupId) {
+        this.resourceLimitGroupId = resourceLimitGroupId;
+    }


This class does not have any other setters. Why not set the resourceLimitGroupId within the constructor itself?

We can't do that because of following reasons

Task is created way up in the stack: https://github.com/opensearch-project/OpenSearch/blob/main/server/src/main/java/org/opensearch/action/support/TransportAction.java#L101

All of these TaskAwareRequests TaskAwareRequest interface
So we won't have the resourceLiimitGroupId

but we will change the information is coming in the searchRequest so this will likely not be present in final change.

jainankitk · 2024-04-25T19:45:51Z

server/src/main/java/org/opensearch/action/search/SearchTask.java

+    public String getResourceLimitGroupName() {
+        return resourceLimitGroupId;
+    }
+
+    public void setResourceLimitGroupName(String resourceLimitGroupId) {
+        this.resourceLimitGroupId = resourceLimitGroupId;
+    }


Same as SearchShardTask

Same as above,
This is where shard level task are created : https://github.com/opensearch-project/OpenSearch/blob/main/server/src/main/java/org/opensearch/transport/RequestHandlerRegistry.java#L91

so basically the tasks are created by TaskManager using TaskAwareRequest.

jainankitk · 2024-04-25T20:12:45Z

server/src/main/java/org/opensearch/cluster/metadata/ResourceLimitGroupMetadata.java

+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        ResourceLimitGroupMetadata that = (ResourceLimitGroupMetadata) o;
+        return Objects.equals(resourceLimitGroups, that.resourceLimitGroups);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(resourceLimitGroups);
+    }
+
+    @Override
+    public String toString() {
+        return Strings.toString(MediaTypeRegistry.JSON, this);
+    }


nit: Move these methods before inner class definitions for more clarity

jainankitk · 2024-04-25T20:13:15Z

server/src/main/java/org/opensearch/cluster/metadata/ResourceLimitGroupMetadata.java

+     * ResourceLimitGroupMetadataDiff
+     */
+    static class ResourceLimitGroupMetadataDiff implements NamedDiff<Metadata.Custom> {
+        final Diff<Map<String, ResourceLimitGroup>> dataStreanDiff;


nit: typo in dataStreanDiff

jainankitk · 2024-04-25T20:17:25Z

server/src/main/java/org/opensearch/cluster/metadata/ResourceLimitGroupMetadata.java

+         */
+        @Override
+        public Metadata.Custom apply(Metadata.Custom part) {
+            return new ResourceLimitGroupMetadata(dataStreanDiff.apply(((ResourceLimitGroupMetadata) part).resourceLimitGroups));


Shouldn't we apply the difference in resourceLimitGroup to existing one for more efficient internode cluster state publication?

In the diff we are only including the diff of ResourceLimitGroups so it should be fine.

jainankitk · 2024-04-25T22:21:57Z

...arch/search/resource_limit_group/tracker/ResourceLimitsGroupResourceUsageTrackerService.java

+     * ResourceLimitGroup ids which are marked for deletion in between the
+     * {@link org.opensearch.search.resource_limit_group.ResourceLimitGroupService} runs
+     */
+    private List<String> toDeleteResourceLimitGroups;


nit: we can call this deleteRLG since we don't track the groups after hard deletion

And, we can keep the reference to original RLG instead of just id?

jainankitk · 2024-04-25T22:56:23Z

...arch/search/resource_limit_group/tracker/ResourceLimitsGroupResourceUsageTrackerService.java

+        Map<String, List<Task>> newResourceLimitGroupTasks = new HashMap<>();
+        for (Map.Entry<String, List<ResourceLimitGroupTask>> entry : activeTasks.stream()
+            .collect(Collectors.groupingBy(ResourceLimitGroupTask::getResourceLimitGroupName))
+            .entrySet()) {
+            newResourceLimitGroupTasks.put(entry.getKey(), entry.getValue().stream().map(task -> (Task) task).collect(Collectors.toList()));
+        }


Do we really need to stream the task list twice?

We can merge the .map logic of these together.

jainankitk · 2024-04-25T22:58:30Z

...arch/search/resource_limit_group/tracker/ResourceLimitsGroupResourceUsageTrackerService.java

+        public Map<String, Double> toMap() {
+            Map<String, Double> map = new HashMap<>();
+            // We can put the additional resources into this map in the future
+            map.put(JVM, getAbsoluteJvmAllocationsUsageInPercent());


You can write generic method for streaming the list of ALLOWED_RESOURCES, and get corresponding value based on the resource type

Yes! Makes sense

jainankitk · 2024-04-25T22:59:02Z

...arch/search/resource_limit_group/tracker/ResourceLimitsGroupResourceUsageTrackerService.java

+    }
+
+    /**
+     * filter out the deleted sandboxes which still has unfi


nit: incomplete documentation?

jainankitk · 2024-04-25T23:00:36Z

...arch/search/resource_limit_group/tracker/ResourceLimitsGroupResourceUsageTrackerService.java

+    public void pruneResourceLimitGroup() {
+        toDeleteResourceLimitGroups = toDeleteResourceLimitGroups.stream().filter(this::hasUnfinishedTasks).collect(Collectors.toList());
+    }
+
+    private boolean hasUnfinishedTasks(String sandboxId) {
+        return false;
+    }
+
+    /**
+     * method to handle the completed tasks
+     * @param task represents completed task on the node
+     */
+    @Override
+    public void onTaskCompleted(Task task) {}
+


If task completion is overridden, we don't need to stream the list of deleted RLGs? Although, should not matter given RLG deletion should be rare

kiranprakash154 · 2024-04-30T21:22:57Z

server/src/main/java/org/opensearch/action/search/SearchRequest.java

@@ -698,6 +707,15 @@ public String pipeline() {
        return pipeline;
    }

+    public SearchRequest resourceLimitGroupId(String resourceLimitGroupId) {


Suggested change

public SearchRequest resourceLimitGroupId(String resourceLimitGroupId) {

public SearchRequest setResourceLimitGroupId(String resourceLimitGroupId) {

I had kept this method aligned with other methods in the class.

kiranprakash154 · 2024-04-30T21:28:08Z

server/src/main/java/org/opensearch/action/search/SearchRequest.java

+        return this;
+    }
+
+    public String resourceLimitGroupId() {


Suggested change

public String resourceLimitGroupId() {

public String getResourceLimitGroupId() {

I had kept this method aligned with other methods in the class.

kiranprakash154 · 2024-04-30T21:29:55Z

server/src/main/java/org/opensearch/cluster/metadata/Metadata.java

@@ -1329,6 +1336,36 @@ public Builder removeDataStream(String name) {
            return this;
        }

+        public Builder resourceLimitGroups(final Map<String, ResourceLimitGroup> resourceLimitGroups) {


nit:

Suggested change

public Builder resourceLimitGroups(final Map<String, ResourceLimitGroup> resourceLimitGroups) {

public Builder putResourceLimitGroups(final Map<String, ResourceLimitGroup> resourceLimitGroups) {

I have kept these methods inline with rest of the methods in class. These are Builder methods so I think it makes sense

kiranprakash154 · 2024-04-30T21:40:06Z

server/src/main/java/org/opensearch/cluster/metadata/ResourceLimitGroup.java

+ * }
+ */
+@ExperimentalApi
+public class ResourceLimitGroup extends AbstractDiffable<ResourceLimitGroup> implements ToXContentObject {


we should have an id field to refer a sandbox internally with the id. The name can be a user-facing entity, according to the published RFC - https://docs.google.com/document/d/1Bp7JnDLectuv3PviyXO0FWV6Tg3wKQOTnzC0PUYXZ6I/edit#heading=h.jrflzibacpc7

We should have an isDeleted field or something that denotes it has been deleted and in the drain mode only, i.e only the already running searches are left to run. Without this field, we cannot drop an incoming request when a ResourceLimitGroup is marked for deletion and in that drain phase.

Actually, I dont think we need isDeleted as I'm guessing the delete API will remove it from the clusterState, so it wont be ever returned as a value here activeResourceLimitGroups = new ArrayList<>(clusterService.state().metadata().resourceLimitGroups().values());

In that case, where are we verifying the user provided ResourceLimitGroup is a valid ResourceLimitGroup or not ?

We will handle that in the tracking part, We will simply track these invalidly tagged tasks under default catch all sandbox.

kiranprakash154 · 2024-04-30T21:48:18Z

server/src/main/java/org/opensearch/cluster/metadata/ResourceLimitGroup.java

+    @ExperimentalApi
+    public static class ResourceLimit implements Writeable, ToXContentObject {
+        private final String resourceName;
+        private final Double value;


i think limit or threshold are better than value ?
value seems a little vague to me

that is true in the context.

kiranprakash154 · 2024-04-30T21:48:48Z

server/src/main/java/org/opensearch/cluster/metadata/ResourceLimitGroup.java

+     */
+    @ExperimentalApi
+    public static class ResourceLimit implements Writeable, ToXContentObject {
+        private final String resourceName;


why not just name ?

I think we need to make an abstract class of Resource.
Which CPU/JVM extends, that way we can accomodate in the long term to be able to provide JVM as bytes or or add a new resource etc.

Using Factory pattern to create a valid Resource like

public class ResourceFactory { public Resource createResource(String type) { if (type.equalsIgnoreCase("CPU")) { return new CPU(); } else if (type.equalsIgnoreCase("JVM")) { return new JVM(); } throw new IllegalArgumentException("Invalid resource type"); } }

We can encapsulate the Resource into a class. But all that would do is rename the class

kiranprakash154 · 2024-04-30T21:52:49Z

server/src/main/java/org/opensearch/cluster/metadata/ResourceLimitGroup.java

+            Objects.requireNonNull(resourceName, "resourceName can't be null");
+            Objects.requireNonNull(value, "resource value can't be null");
+
+            if (Double.compare(value, 1.0) > 0) {


Suggested change

if (Double.compare(value, 1.0) > 0) {

if (value > 1.0) {

this is much simpler ?

I added this just for the accuracy purposes as We can only hold doubles/floats precise upto a digit after decimal

kiranprakash154 · 2024-04-30T21:58:22Z

.../main/java/org/opensearch/search/resource_limit_group/ResourceLimitGroupServiceSettings.java

+ * Main class to declare the query ResourceLimitGrouping feature related settings
+ */
+public class ResourceLimitGroupServiceSettings {
+    private static final Long DEFAULT_RUN_INTERVAL_MILLIS = 1000l;


Suggested change

private static final Long DEFAULT_RUN_INTERVAL_MILLIS = 1000l;

private static final Long DEFAULT_RUN_INTERVAL_MILLIS = 1_000L;

kiranprakash154 · 2024-04-30T23:26:32Z

server/src/main/java/org/opensearch/cluster/metadata/ResourceLimitGroup.java

+            PARSER.declareDouble(ConstructingObjectParser.constructorArg(), RESOURCE_VALUE_FIELD);
+        }
+
+        public ResourceLimit(String resourceName, Double value) {


I believe ResourceLimit is called by an API that creates a new ResourceLimitGroup ?
If this is user facing then we should let them use a string ending with % like 10% or a double value of 0.1.
We can follow something similar to this - https://github.com/opensearch-project/OpenSearch/blob/main/server/src/main/java/org/opensearch/indices/IndicesRequestCache.java#L837C1-L857C6

kiranprakash154 · 2024-04-30T23:48:10Z

...arch/search/resource_limit_group/tracker/ResourceLimitsGroupResourceUsageTrackerService.java

+
+    @Override
+    public void updateResourceLimitGroupsResourceUsage() {
+        activeResourceLimitGroups = new ArrayList<>(clusterService.state().metadata().resourceLimitGroups().values());


should we avoid storing these values at the instance level to avoid synchronization issues and always fetch the activeResourceLimitGroups from the clusterService ?

This is calculated every second so this is always upto date. Am I missing something here ?

kiranprakash154 · 2024-05-01T19:38:30Z

...arch/search/resource_limit_group/tracker/ResourceLimitsGroupResourceUsageTrackerService.java

+     * We are keeping this as instance member as we will need this to identify the contended resource limit groups
+     * resourceLimitGroupName -> List&lt;ResourceLimitGroupTask&gt;
+     */
+    private Map<String, List<Task>> resourceLimitGroupTasks;


Should this be hardcoded to CancellableTask ? should/would we ever tag a non CancellableTask type to a ResourceLimitGroup ?

kiranprakash154 · 2024-05-02T01:07:06Z

server/src/main/java/org/opensearch/search/resource_limit_group/ResourceLimitGroupService.java

+    @Inject
+    public ResourceLimitGroupService(
+        ResourceLimitGroupResourceUsageTracker requestTrackerService,
+        ResourceLimitGroupTaskCanceller requestCanceller,


are both requestCanceller and taskCanceller required ?

Good Catch! This is a miss from my end. No, only one is required.

kiranprakash154 · 2024-05-07T01:07:20Z

...arch/search/resource_limit_group/tracker/ResourceLimitsGroupResourceUsageTrackerService.java

+/**
+ * This class tracks requests per resourceLimitGroups
+ */
+public class ResourceLimitsGroupResourceUsageTrackerService extends ResourceLimitGroupTaskCanceller


This class is overburdened with multiple responsibilities - Tracking resource usage, Managing task cancellations and Handling resource pruning and deletion.
I think we need to break them into their own classes.

Something like

public class ResourcePruningService implements ResourcePruner {} public class TaskCancellationService implements TaskCanceller {} public class ResourceUsageService implements ResourceUsageTracker {}

Yes, We will be creating these concrete implementations. This PR is going to serve as the Parent PR for upcoming small PRs which are breakdown of this.

Signed-off-by: Kaushal Kumar <[email protected]>

github-actions · 2024-05-08T18:47:01Z

❌ Gradle check result for 3afd9db: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

opensearch-trigger-bot · 2024-06-08T15:20:58Z

This PR is stalled because it has been open for 30 days with no activity.

opensearch-trigger-bot · 2024-07-14T15:22:22Z

This PR is stalled because it has been open for 30 days with no activity.

jainankitk · 2024-09-18T23:28:45Z

I guess we can close this PR. @kaushalmahi12 - Please reopen if needed

kaushalmahi12 added 8 commits April 19, 2024 09:40

add sandbox service

ac8b002

Signed-off-by: Kaushal Kumar <[email protected]>

add resourceLimitGroupId propagation logic from coordinator to data n…

7f5bac5

…odes Signed-off-by: Kaushal Kumar <[email protected]>

add sandbox schema

eba0060

Signed-off-by: Kaushal Kumar <[email protected]>

add resourceLimitGroupTests

ba237c1

Signed-off-by: Kaushal Kumar <[email protected]>

add resourceLimitGroupMetadata tests

62f501d

Signed-off-by: Kaushal Kumar <[email protected]>

run spotlessApply

d886fe9

Signed-off-by: Kaushal Kumar <[email protected]>

add mode field in ResourceLimitGroup schema

44e9d11

Signed-off-by: Kaushal Kumar <[email protected]>

fix breaking testcases

5ba7535

Signed-off-by: Kaushal Kumar <[email protected]>

kaushalmahi12 requested review from anasalkouz, andrross, Bukhtawar, CEHENKLE, dblock, dbwiddis, dreamer-89, gbbafna, kotwanikunal, mch2, msfroh, nknize, owaiskazi19, reta, Rishikesh1159, sachinpkale, saratvemulapalli, shwetathareja, sohami, tlfeng and VachaShah as code owners April 19, 2024 17:59

kaushalmahi12 changed the title ~~Feature/resource limit group sandbox schema~~ Feature/QuerySandbox(ResourceLimitGroup) Add sandbox schema and tracking framework Apr 19, 2024

add task cancellation skeleton

d2a19ee

Signed-off-by: Kaushal Kumar <[email protected]>

jainankitk reviewed Apr 25, 2024

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kiranprakash154 reviewed Apr 30, 2024

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kiranprakash154 reviewed May 1, 2024

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kiranprakash154 reviewed May 7, 2024

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add multitenant labels in searchSource builder

3afd9db

Signed-off-by: Kaushal Kumar <[email protected]>

kiranprakash154 mentioned this pull request May 13, 2024

Proposed Changes QSB Frameworks kaushalmahi12/OpenSearch#2

Closed

opensearch-trigger-bot bot added stalled Issues that have stalled and removed stalled Issues that have stalled labels Jun 8, 2024

opensearch-trigger-bot bot added the stalled Issues that have stalled label Jul 14, 2024

jainankitk closed this Sep 18, 2024

	public SearchRequest resourceLimitGroupId(String resourceLimitGroupId) {
	public SearchRequest setResourceLimitGroupId(String resourceLimitGroupId) {

	public String resourceLimitGroupId() {
	public String getResourceLimitGroupId() {

	public Builder resourceLimitGroups(final Map<String, ResourceLimitGroup> resourceLimitGroups) {
	public Builder putResourceLimitGroups(final Map<String, ResourceLimitGroup> resourceLimitGroups) {

	private static final Long DEFAULT_RUN_INTERVAL_MILLIS = 1000l;
	private static final Long DEFAULT_RUN_INTERVAL_MILLIS = 1_000L;

Feature/QuerySandbox(ResourceLimitGroup) Add sandbox schema and tracking framework #13311

Feature/QuerySandbox(ResourceLimitGroup) Add sandbox schema and tracking framework #13311

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kaushalmahi12 commented Apr 19, 2024

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