#6081: set IO throttling back to 20 MB/sec now that #6018 is fixed

docs/reference/index-modules/store.asciidoc

@@ -40,7 +40,7 @@ second. It can be set by setting `indices.store.throttle.type` to
 `merge`, and setting `indices.store.throttle.max_bytes_per_sec` to
 something like `5mb`. The node level settings can be changed dynamically
 using the cluster update settings API. The default is set
-to `50mb` with type `merge`.
+to `20mb` with type `merge`.
 
 If specific index level configuration is needed, regardless of the node
 level settings, it can be set as well using the

docs/reference/modules/indices.asciidoc

@@ -59,7 +59,7 @@ The following settings can be set to manage the recovery policy:
     defaults to `true`.
 
 `indices.recovery.max_bytes_per_sec`::
-    defaults to `50mb`.
+    defaults to `20mb`.
 
 [float]
 [[throttling]]
@@ -72,5 +72,5 @@ The following settings can be set to control the store throttling:
     could be `merge` (default), `none` or `all`. See <<index-modules-store>>.
 
 `indices.store.throttle.max_bytes_per_sec`::
-    defaults to `50mb`.
+    defaults to `20mb`.
 

src/main/java/org/elasticsearch/indices/recovery/RecoverySettings.java

@@ -81,7 +81,7 @@ public class RecoverySettings extends AbstractComponent {
         this.concurrentSmallFileStreams = componentSettings.getAsInt("concurrent_small_file_streams", settings.getAsInt("index.shard.recovery.concurrent_small_file_streams", 2));
         this.concurrentSmallFileStreamPool = EsExecutors.newScaling(0, concurrentSmallFileStreams, 60, TimeUnit.SECONDS, EsExecutors.daemonThreadFactory(settings, "[small_file_recovery_stream]"));
 
-        this.maxBytesPerSec = componentSettings.getAsBytesSize("max_bytes_per_sec", componentSettings.getAsBytesSize("max_size_per_sec", new ByteSizeValue(50, ByteSizeUnit.MB)));
+        this.maxBytesPerSec = componentSettings.getAsBytesSize("max_bytes_per_sec", componentSettings.getAsBytesSize("max_size_per_sec", new ByteSizeValue(20, ByteSizeUnit.MB)));
         if (maxBytesPerSec.bytes() <= 0) {
             rateLimiter = null;
         } else {

src/main/java/org/elasticsearch/indices/store/IndicesStore.java

@@ -95,7 +95,7 @@ public class IndicesStore extends AbstractComponent implements ClusterStateListe
         // we limit with 20MB / sec by default with a default type set to merge sice 0.90.1
         this.rateLimitingType = componentSettings.get("throttle.type", StoreRateLimiting.Type.MERGE.name());
         rateLimiting.setType(rateLimitingType);
-        this.rateLimitingThrottle = componentSettings.getAsBytesSize("throttle.max_bytes_per_sec", new ByteSizeValue(50, ByteSizeUnit.MB));
+        this.rateLimitingThrottle = componentSettings.getAsBytesSize("throttle.max_bytes_per_sec", new ByteSizeValue(20, ByteSizeUnit.MB));
         rateLimiting.setMaxRate(rateLimitingThrottle);
 
         logger.debug("using indices.store.throttle.type [{}], with index.store.throttle.max_bytes_per_sec [{}]", rateLimitingType, rateLimitingThrottle);

src/test/java/org/elasticsearch/indices/store/SimpleDistributorTests.java

@@ -59,7 +59,7 @@ public class SimpleDistributorTests extends ElasticsearchIntegrationTest {
         if (dataPaths.length > 1) {
             assertThat(storeString.toLowerCase(Locale.ROOT), containsString("), rate_limited(niofs(" + dataPaths[1].getAbsolutePath().toLowerCase(Locale.ROOT)));
         }
-        assertThat(storeString, endsWith(", type=MERGE, rate=50.0)])"));
+        assertThat(storeString, endsWith(", type=MERGE, rate=20.0)])"));
 
         createIndexWithStoreType("test", "niofs", "random");
         storeString = getStoreDirectory("test", 0).toString();
@@ -69,7 +69,7 @@ public class SimpleDistributorTests extends ElasticsearchIntegrationTest {
         if (dataPaths.length > 1) {
             assertThat(storeString.toLowerCase(Locale.ROOT), containsString("), rate_limited(niofs(" + dataPaths[1].getAbsolutePath().toLowerCase(Locale.ROOT)));
         }
-        assertThat(storeString, endsWith(", type=MERGE, rate=50.0)])"));
+        assertThat(storeString, endsWith(", type=MERGE, rate=20.0)])"));
 
         createIndexWithStoreType("test", "mmapfs", "least_used");
         storeString = getStoreDirectory("test", 0).toString();
@@ -79,7 +79,7 @@ public class SimpleDistributorTests extends ElasticsearchIntegrationTest {
         if (dataPaths.length > 1) {
             assertThat(storeString.toLowerCase(Locale.ROOT), containsString("), rate_limited(mmapfs(" + dataPaths[1].getAbsolutePath().toLowerCase(Locale.ROOT)));
         }
-        assertThat(storeString, endsWith(", type=MERGE, rate=50.0)])"));
+        assertThat(storeString, endsWith(", type=MERGE, rate=20.0)])"));
 
         createIndexWithStoreType("test", "simplefs", "least_used");
         storeString = getStoreDirectory("test", 0).toString();
@@ -89,7 +89,7 @@ public class SimpleDistributorTests extends ElasticsearchIntegrationTest {
         if (dataPaths.length > 1) {
             assertThat(storeString.toLowerCase(Locale.ROOT), containsString("), rate_limited(simplefs(" + dataPaths[1].getAbsolutePath().toLowerCase(Locale.ROOT)));
         }
-        assertThat(storeString, endsWith(", type=MERGE, rate=50.0)])"));
+        assertThat(storeString, endsWith(", type=MERGE, rate=20.0)])"));
 
         createIndexWithStoreType("test", "memory", "least_used");
         storeString = getStoreDirectory("test", 0).toString();