[AMORO-2296] Add cache for loading tables in core and trino (#2298)

* add cache for loading tables * fix checkstyle * implement caching catalog in BasicMixedIcebergCatalog * extract namespace catalog * extract namespace catalog * resolve conflict * resolve conflict
apache · Nov 23, 2023 · 244c1cf · 244c1cf
1 parent 5436d1e
commit 244c1cf
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Showing 3 changed files with 78 additions and 40 deletions.
diff --git a/core/src/main/java/com/netease/arctic/mixed/BasicMixedIcebergCatalog.java b/core/src/main/java/com/netease/arctic/mixed/BasicMixedIcebergCatalog.java
@@ -35,6 +35,8 @@
 import com.netease.arctic.table.blocker.TableBlockerManager;
 import com.netease.arctic.utils.TablePropertyUtil;
 import org.apache.hadoop.conf.Configuration;
+import org.apache.iceberg.CachingCatalog;
+import org.apache.iceberg.CatalogProperties;
 import org.apache.iceberg.PartitionSpec;
 import org.apache.iceberg.Schema;
 import org.apache.iceberg.SortOrder;
@@ -47,6 +49,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.relocated.com.google.common.collect.Maps;
 import org.apache.iceberg.relocated.com.google.common.collect.Sets;
+import org.apache.iceberg.util.PropertyUtil;
 
 import java.util.List;
 import java.util.Map;
@@ -63,6 +66,7 @@ public class BasicMixedIcebergCatalog implements ArcticCatalog {
   private Pattern databaseFilterPattern;
   private AmsClient client;
   private MixedTables tables;
+  private SupportsNamespaces asNamespaceCatalog;
 
   @Override
   public String name() {
@@ -71,18 +75,46 @@ public String name() {
 
   @Override
   public void initialize(String name, Map<String, String> properties, TableMetaStore metaStore) {
+    boolean cacheEnabled =
+        PropertyUtil.propertyAsBoolean(
+            properties, CatalogProperties.CACHE_ENABLED, CatalogProperties.CACHE_ENABLED_DEFAULT);
+
+    boolean cacheCaseSensitive =
+        PropertyUtil.propertyAsBoolean(
+            properties,
+            CatalogProperties.CACHE_CASE_SENSITIVE,
+            CatalogProperties.CACHE_CASE_SENSITIVE_DEFAULT);
+
+    long cacheExpirationIntervalMs =
+        PropertyUtil.propertyAsLong(
+            properties,
+            CatalogProperties.CACHE_EXPIRATION_INTERVAL_MS,
+            CatalogProperties.CACHE_EXPIRATION_INTERVAL_MS_DEFAULT);
+
+    // An expiration interval of 0ms effectively disables caching.
+    // Do not wrap with CachingCatalog.
+    if (cacheExpirationIntervalMs == 0) {
+      cacheEnabled = false;
+    }
     Pattern databaseFilterPattern = null;
     if (properties.containsKey(CatalogMetaProperties.KEY_DATABASE_FILTER_REGULAR_EXPRESSION)) {
       String databaseFilter =
           properties.get(CatalogMetaProperties.KEY_DATABASE_FILTER_REGULAR_EXPRESSION);
       databaseFilterPattern = Pattern.compile(databaseFilter);
     }
+    Catalog catalog = buildIcebergCatalog(name, properties, metaStore.getConfiguration());
     this.name = name;
     this.tableMetaStore = metaStore;
-    this.icebergCatalog = buildIcebergCatalog(name, properties, metaStore.getConfiguration());
+    this.icebergCatalog =
+        cacheEnabled
+            ? CachingCatalog.wrap(catalog, cacheCaseSensitive, cacheExpirationIntervalMs)
+            : catalog;
+    if (catalog instanceof SupportsNamespaces) {
+      this.asNamespaceCatalog = (SupportsNamespaces) catalog;
+    }
     this.databaseFilterPattern = databaseFilterPattern;
     this.catalogProperties = properties;
-    this.tables = newMixedTables(metaStore, properties, icebergCatalog);
+    this.tables = newMixedTables(metaStore, properties, icebergCatalog());
     if (properties.containsKey(CatalogMetaProperties.AMS_URI)) {
       this.client = new PooledAmsClient(properties.get(CatalogMetaProperties.AMS_URI));
     }
@@ -218,14 +250,13 @@ private org.apache.iceberg.catalog.TableIdentifier toIcebergTableIdentifier(
   }
 
   private SupportsNamespaces asNamespaceCatalog() {
-    Catalog icebergCatalog = icebergCatalog();
-    if (!(icebergCatalog instanceof SupportsNamespaces)) {
+    if (asNamespaceCatalog == null) {
       throw new UnsupportedOperationException(
           String.format(
               "Iceberg catalog: %s doesn't implement SupportsNamespaces",
-              icebergCatalog.getClass().getName()));
+              icebergCatalog().getClass().getName()));
     }
-    return (SupportsNamespaces) icebergCatalog;
+    return asNamespaceCatalog;
   }
 
   private class MixedIcebergTableBuilder implements TableBuilder {

diff --git a/trino/src/main/java/com/netease/arctic/trino/ArcticConnectorMetadata.java b/trino/src/main/java/com/netease/arctic/trino/ArcticConnectorMetadata.java
@@ -66,6 +66,7 @@
 import java.util.Map;
 import java.util.Optional;
 import java.util.OptionalLong;
+import java.util.concurrent.ConcurrentHashMap;
 import java.util.stream.Collectors;
 
 /**
@@ -81,6 +82,8 @@ public class ArcticConnectorMetadata implements ConnectorMetadata {
 
   private final ArcticCatalog arcticCatalog;
 
+  private final Map<SchemaTableName, ArcticTable> tableCache = new ConcurrentHashMap<>();
+
   public ArcticConnectorMetadata(
       KeyedConnectorMetadata keyedConnectorMetadata,
       IcebergMetadata icebergMetadata,
@@ -99,8 +102,7 @@ public List<String> listSchemaNames(ConnectorSession session) {
 
   @Override
   public ConnectorTableHandle getTableHandle(ConnectorSession session, SchemaTableName tableName) {
-    // 需要缓存
-    ArcticTable arcticTable = null;
+    ArcticTable arcticTable;
     try {
       arcticTable = getArcticTable(tableName);
     } catch (NoSuchTableException e) {
@@ -169,7 +171,7 @@ public ColumnMetadata getColumnMetadata(
   public Iterator<TableColumnsMetadata> streamTableColumns(
       ConnectorSession session, SchemaTablePrefix prefix) {
     if (prefix.getTable().isPresent()) {
-      ArcticTable arcticTable = null;
+      ArcticTable arcticTable;
       try {
         arcticTable =
             getArcticTable(new SchemaTableName(prefix.getSchema().get(), prefix.getTable().get()));
@@ -452,7 +454,8 @@ public void rollback() {
   }
 
   public ArcticTable getArcticTable(SchemaTableName schemaTableName) {
-    return arcticCatalog.loadTable(getTableIdentifier(schemaTableName));
+    return tableCache.computeIfAbsent(
+        schemaTableName, ignore -> arcticCatalog.loadTable(getTableIdentifier(schemaTableName)));
   }
 
   private TableIdentifier getTableIdentifier(SchemaTableName schemaTableName) {