| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.cassandra.metrics; |
| |
| import java.util.Collection; |
| |
| import com.codahale.metrics.Counter; |
| |
| import org.apache.cassandra.config.DatabaseDescriptor; |
| import org.apache.cassandra.cql3.restrictions.StatementRestrictions; |
| import org.apache.cassandra.cql3.selection.Selection; |
| import org.apache.cassandra.db.IMutation; |
| import org.apache.cassandra.db.partitions.PartitionUpdate; |
| import org.apache.cassandra.schema.ColumnMetadata; |
| import org.apache.cassandra.transport.messages.ResultMessage; |
| |
| import static org.apache.cassandra.metrics.CassandraMetricsRegistry.Metrics; |
| |
| public class ClientRequestSizeMetrics |
| { |
| private static final String TYPE = "ClientRequestSize"; |
| |
| public static final Counter totalColumnsRead = Metrics.counter(DefaultNameFactory.createMetricName(TYPE, "ColumnsRead", null)); |
| public static final Counter totalRowsRead = Metrics.counter(DefaultNameFactory.createMetricName(TYPE, "RowsRead", null)); |
| public static final Counter totalColumnsWritten = Metrics.counter(DefaultNameFactory.createMetricName(TYPE, "ColumnsWritten", null)); |
| public static final Counter totalRowsWritten = Metrics.counter(DefaultNameFactory.createMetricName(TYPE, "RowsWritten", null)); |
| |
| public static void recordReadResponseMetrics(ResultMessage.Rows rows, StatementRestrictions restrictions, Selection selection) |
| { |
| if (!DatabaseDescriptor.getClientRequestSizeMetricsEnabled()) |
| return; |
| |
| int rowCount = rows.result.size(); |
| ClientRequestSizeMetrics.totalRowsRead.inc(rowCount); |
| |
| int nonRestrictedColumns = selection.getColumns().size(); |
| |
| for (ColumnMetadata column : selection.getColumns()) |
| if (restrictions.isEqualityRestricted(column)) |
| nonRestrictedColumns--; |
| |
| long columnCount = (long) rowCount * nonRestrictedColumns; |
| ClientRequestSizeMetrics.totalColumnsRead.inc(columnCount); |
| } |
| |
| public static void recordRowAndColumnCountMetrics(Collection<? extends IMutation> mutations) |
| { |
| if (!DatabaseDescriptor.getClientRequestSizeMetricsEnabled()) |
| return; |
| |
| int rowCount = 0; |
| int columnCount = 0; |
| |
| for (IMutation mutation : mutations) |
| { |
| for (PartitionUpdate update : mutation.getPartitionUpdates()) |
| { |
| columnCount += update.affectedColumnCount(); |
| rowCount += update.affectedRowCount(); |
| } |
| } |
| |
| ClientRequestSizeMetrics.totalColumnsWritten.inc(columnCount); |
| ClientRequestSizeMetrics.totalRowsWritten.inc(rowCount); |
| } |
| |
| public static void recordRowAndColumnCountMetrics(PartitionUpdate update) |
| { |
| if (!DatabaseDescriptor.getClientRequestSizeMetricsEnabled()) |
| return; |
| |
| ClientRequestSizeMetrics.totalColumnsWritten.inc(update.affectedColumnCount()); |
| ClientRequestSizeMetrics.totalRowsWritten.inc(update.affectedRowCount()); |
| } |
| } |