SEISMIC: Change default circuit breaker limit to 10% (#1565)

* Seismic: Change default circuit breaker limit to 10%

Signed-off-by: yuye-aws <[email protected]>

* Add change log

Signed-off-by: yuye-aws <[email protected]>

---------

Signed-off-by: yuye-aws <[email protected]>

Author: yuye-aws

CHANGELOG.md

@@ -7,7 +7,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ### Features
 
-- [SEISMIC] Support SEISMIC, a new sparse ANN algorithm [#1564](https://github.com/opensearch-project/neural-search/pull/1564), [#1563](https://github.com/opensearch-project/neural-search/pull/1563), [#1562](https://github.com/opensearch-project/neural-search/pull/1562), [#1559](https://github.com/opensearch-project/neural-search/pull/1559), [#1557](https://github.com/opensearch-project/neural-search/pull/1557), [#1555](https://github.com/opensearch-project/neural-search/pull/1555), [#1554](https://github.com/opensearch-project/neural-search/pull/1554), [#1553](https://github.com/opensearch-project/neural-search/pull/1553), [#1539](https://github.com/opensearch-project/neural-search/pull/1539), [#1538](https://github.com/opensearch-project/neural-search/pull/1538), [#1537](https://github.com/opensearch-project/neural-search/pull/1537), [#1536](https://github.com/opensearch-project/neural-search/pull/1536), [#1524](https://github.com/opensearch-project/neural-search/pull/1524), [#1514](https://github.com/opensearch-project/neural-search/pull/1514), [#1502](https://github.com/opensearch-project/neural-search/pull/1502)
+- [SEISMIC] Support SEISMIC, a new sparse ANN algorithm [#1565](https://github.com/opensearch-project/neural-search/pull/1565), [#1564](https://github.com/opensearch-project/neural-search/pull/1564), [#1563](https://github.com/opensearch-project/neural-search/pull/1563), [#1562](https://github.com/opensearch-project/neural-search/pull/1562), [#1559](https://github.com/opensearch-project/neural-search/pull/1559), [#1557](https://github.com/opensearch-project/neural-search/pull/1557), [#1555](https://github.com/opensearch-project/neural-search/pull/1555), [#1554](https://github.com/opensearch-project/neural-search/pull/1554), [#1553](https://github.com/opensearch-project/neural-search/pull/1553), [#1539](https://github.com/opensearch-project/neural-search/pull/1539), [#1538](https://github.com/opensearch-project/neural-search/pull/1538), [#1537](https://github.com/opensearch-project/neural-search/pull/1537), [#1536](https://github.com/opensearch-project/neural-search/pull/1536), [#1524](https://github.com/opensearch-project/neural-search/pull/1524), [#1514](https://github.com/opensearch-project/neural-search/pull/1514), [#1502](https://github.com/opensearch-project/neural-search/pull/1502)
 
 ### Enhancements
 

src/main/java/org/opensearch/neuralsearch/settings/NeuralSearchSettings.java

@@ -26,9 +26,9 @@ public final class NeuralSearchSettings {
 
     /**
      * Specifies the initial memory limit for the parent circuit breaker.
-     * Defaults to 50% of the JVM heap.
+     * Defaults to 10% of the JVM heap.
      */
-    private static final String DEFAULT_CIRCUIT_BREAKER_LIMIT = "50%";
+    private static final String DEFAULT_CIRCUIT_BREAKER_LIMIT = "10%";
     /**
      * A constant by which the neural data estimations are multiplied to determine the final estimation.
      * Default is 1.0 while minimum is 0.0.
@@ -114,7 +114,7 @@ public final class NeuralSearchSettings {
     );
 
     /**
-     * The memory limit for neural circuit breaker. Default is 50% of the JVM heap.
+     * The memory limit for neural circuit breaker. Default is 10% of the JVM heap.
      */
     public static final Setting<ByteSizeValue> NEURAL_CIRCUIT_BREAKER_LIMIT = Setting.memorySizeSetting(
         "plugins.neural_search.circuit_breaker.limit",

src/test/java/org/opensearch/neuralsearch/sparse/SparseMemoryStatsIT.java

@@ -48,7 +48,7 @@ public void setUp() {
     @SneakyThrows
     public void tearDown() {
         disableStats();
-        updateClusterSettings(NeuralSearchSettings.NEURAL_CIRCUIT_BREAKER_LIMIT.getKey(), "50%");
+        updateClusterSettings(NeuralSearchSettings.NEURAL_CIRCUIT_BREAKER_LIMIT.getKey(), "10%");
         super.tearDown();
     }