Add feature flag for the task limit used by the executors handling feed in proton.

3 files changed, 37 insertions, 16 deletions

diff --git a/config-model/src/main/java/com/yahoo/config/model/deploy/TestProperties.java b/config-model/src/main/java/com/yahoo/config/model/deploy/TestProperties.java
index ce4e5f0c01f..a63344678da 100644
--- a/config-model/src/main/java/com/yahoo/config/model/deploy/TestProperties.java
+++ b/config-model/src/main/java/com/yahoo/config/model/deploy/TestProperties.java
@@ -41,6 +41,7 @@ public class TestProperties implements ModelContext.Properties, ModelContext.Fea
     private double defaultTermwiseLimit = 1.0;
     private String jvmGCOptions = null;
     private String sequencerType = "LATENCY";
+    private int feedTaskLimit = 1000;
     private boolean firstTimeDeployment = false;
     private String responseSequencerType = "ADAPTIVE";
     private int responseNumThreads = 2;
@@ -80,6 +81,7 @@ public class TestProperties implements ModelContext.Properties, ModelContext.Fea
     @Override public Set<ContainerEndpoint> endpoints() { return endpoints; }
     @Override public String jvmGCOptions(Optional<ClusterSpec.Type> clusterType) { return jvmGCOptions; }
     @Override public String feedSequencerType() { return sequencerType; }
+    @Override public int feedTaskLimit() { return feedTaskLimit; }
     @Override public boolean isBootstrap() { return false; }
     @Override public boolean isFirstTimeDeployment() { return firstTimeDeployment; }
     @Override public boolean useDedicatedNodeForLogserver() { return useDedicatedNodeForLogserver; }
@@ -155,6 +157,10 @@ public class TestProperties implements ModelContext.Properties, ModelContext.Fea
         sequencerType = type;
         return this;
     }
+    public TestProperties setFeedTaskLimit(int value) {
+        feedTaskLimit = value;
+        return this;
+    }
     public TestProperties setResponseSequencerType(String type) {
         responseSequencerType = type;
         return this;
diff --git a/config-model/src/main/java/com/yahoo/vespa/model/content/ContentSearchCluster.java b/config-model/src/main/java/com/yahoo/vespa/model/content/ContentSearchCluster.java
index 3ab7e947a2f..1200b7467b4 100644
--- a/config-model/src/main/java/com/yahoo/vespa/model/content/ContentSearchCluster.java
+++ b/config-model/src/main/java/com/yahoo/vespa/model/content/ContentSearchCluster.java
@@ -64,6 +64,7 @@ public class ContentSearchCluster extends AbstractConfigProducer<SearchCluster>
     private final Map<StorageGroup, NodeSpec> groupToSpecMap = new LinkedHashMap<>();
     private Optional<ResourceLimits> resourceLimits = Optional.empty();
     private final ProtonConfig.Indexing.Optimize.Enum feedSequencerType;
+    private final int feedTaskLimit;
     private final double defaultFeedConcurrency;
     private final double defaultDiskBloatFactor;
     private final int defaultDocStoreCompressionLevel;
@@ -210,6 +211,7 @@ public class ContentSearchCluster extends AbstractConfigProducer<SearchCluster>
 
         this.combined = combined;
         feedSequencerType = convertFeedSequencerType(featureFlags.feedSequencerType());
+        feedTaskLimit = featureFlags.feedTaskLimit();
         defaultFeedConcurrency = featureFlags.feedConcurrency();
         defaultDocStoreCompressionLevel = featureFlags.docstoreCompressionLevel();
         defaultDiskBloatFactor = featureFlags.diskBloatFactor();
@@ -429,6 +431,7 @@ public class ContentSearchCluster extends AbstractConfigProducer<SearchCluster>
         } else {
             builder.indexing.optimize(feedSequencerType);
         }
+        builder.indexing.tasklimit(feedTaskLimit);
     }
 
     private boolean isGloballyDistributed(NewDocumentType docType) {
diff --git a/config-model/src/test/java/com/yahoo/vespa/model/builder/xml/dom/ContentBuilderTest.java b/config-model/src/test/java/com/yahoo/vespa/model/builder/xml/dom/ContentBuilderTest.java
index 891a870dc01..5395b0868cb 100644
--- a/config-model/src/test/java/com/yahoo/vespa/model/builder/xml/dom/ContentBuilderTest.java
+++ b/config-model/src/test/java/com/yahoo/vespa/model/builder/xml/dom/ContentBuilderTest.java
@@ -777,21 +777,24 @@ public class ContentBuilderTest extends DomBuilderTest {
                 "</services>";
     }
 
+    private ProtonConfig resolveProtonConfig(TestProperties props, String hostedXml) {
+        var deployStateBuilder = new DeployState.Builder().properties(props);
+        var model = new VespaModelCreatorWithMockPkg(new MockApplicationPackage.Builder()
+                .withServices(hostedXml)
+                .withSearchDefinition(MockApplicationPackage.MUSIC_SEARCHDEFINITION)
+                .build())
+                .create(deployStateBuilder);
+        return getProtonConfig(model.getContentClusters().values().iterator().next());
+    }
+
     private void verifyFeedSequencer(String input, String expected) {
         verifyFeedSequencer(input, expected, 0);
     }
+
     private void verifyFeedSequencer(String input, String expected, double visibilityDelay) {
         String hostedXml = xmlWithVisibilityDelay(visibilityDelay);
-
-        DeployState.Builder deployStateBuilder = new DeployState.Builder().properties(new TestProperties().setFeedSequencerType(input));
-        VespaModel model = new VespaModelCreatorWithMockPkg(new MockApplicationPackage.Builder()
-                .withServices(hostedXml)
-                .withSearchDefinition(MockApplicationPackage.MUSIC_SEARCHDEFINITION)
-                .build())
-                .create(deployStateBuilder);
-        ProtonConfig config = getProtonConfig(model.getContentClusters().values().iterator().next());
+        var config = resolveProtonConfig(new TestProperties().setFeedSequencerType(input), hostedXml);
         assertEquals(expected, config.indexing().optimize().toString());
-
     }
 
     @Test
@@ -806,17 +809,26 @@ public class ContentBuilderTest extends DomBuilderTest {
 
     }
 
+    @Test
+    public void feed_task_limit_is_controlled_by_feature_flag() {
+        assertEquals(1000, resolveFeedTaskLimitConfigWithFeatureFlag(null));
+        assertEquals(2000, resolveFeedTaskLimitConfigWithFeatureFlag(2000));
+    }
+
+    private int resolveFeedTaskLimitConfigWithFeatureFlag(Integer value) {
+        var props = new TestProperties();
+        if (value != null) {
+            props.setFeedTaskLimit(value);
+        }
+        return resolveProtonConfig(props, singleNodeContentXml()).indexing().tasklimit();
+    }
+
     private void verifyThatFeatureFlagControlsVisibilityDelayDefault(Double xmlOverride, double expected) {
         String hostedXml = xmlWithVisibilityDelay(xmlOverride);
-        DeployState.Builder deployStateBuilder = new DeployState.Builder().properties(new TestProperties());
-        VespaModel model = new VespaModelCreatorWithMockPkg(new MockApplicationPackage.Builder()
-                .withServices(hostedXml)
-                .withSearchDefinition(MockApplicationPackage.MUSIC_SEARCHDEFINITION)
-                .build())
-                .create(deployStateBuilder);
-        ProtonConfig config = getProtonConfig(model.getContentClusters().values().iterator().next());
+        var config = resolveProtonConfig(new TestProperties(), hostedXml);
         assertEquals(expected, config.documentdb(0).visibilitydelay(), 0.0);
     }
+
     @Test
     public void verifyThatFeatureFlagControlsVisibilityDelayDefault() {
         verifyThatFeatureFlagControlsVisibilityDelayDefault(null, 0.0);