| /* |
| * 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.ignite.igfs; |
| |
| import org.apache.ignite.configuration.DataRegionConfiguration; |
| |
| /** |
| * {@code IGFS} metrics snapshot for the file system. Note, that some metrics are global and |
| * some are local (i.e. per each node). |
| */ |
| public interface IgfsMetrics { |
| /** |
| * Gets local used space in bytes. This is the sum of all file chunks stored on local node. |
| * <p> |
| * This is a local metric. |
| * |
| * @return Node used space in bytes. |
| */ |
| public long localSpaceSize(); |
| |
| /** |
| * Gets maximum amount of data that can be stored on local node. This metrics is related to |
| * to the {@link DataRegionConfiguration#getMaxSize()} of the IGFS data cache. |
| * |
| * @return Maximum IGFS local space size. |
| */ |
| public long maxSpaceSize(); |
| |
| /** |
| * Get used space in bytes used in the secondary file system. |
| * <p> |
| * This is a global metric. |
| * |
| * @return Used space in the secondary file system or {@code 0} in case no secondary file system is configured. |
| */ |
| public long secondarySpaceSize(); |
| |
| /** |
| * Gets number of directories created in file system. |
| * <p> |
| * This is a global metric. |
| * |
| * @return Number of directories. |
| */ |
| public int directoriesCount(); |
| |
| /** |
| * Gets number of files stored in file system. |
| * <p> |
| * This is a global metric. |
| * |
| * @return Number of files. |
| */ |
| public int filesCount(); |
| |
| /** |
| * Gets number of files that are currently opened for reading. |
| * <p> |
| * This is a local metric. |
| * |
| * @return Number of opened files. |
| */ |
| public int filesOpenedForRead(); |
| |
| /** |
| * Gets number of files that are currently opened for writing. |
| * <p> |
| * This is a local metric. |
| * |
| * @return Number of opened files. |
| */ |
| public int filesOpenedForWrite(); |
| |
| /** |
| * Gets total blocks read, local and remote. |
| * <p> |
| * This is a local metric. |
| * |
| * @return Total blocks read. |
| */ |
| public long blocksReadTotal(); |
| |
| /** |
| * Gets total remote blocks read. |
| * <p> |
| * This is a local metric. |
| * |
| * @return Total blocks remote read. |
| */ |
| public long blocksReadRemote(); |
| |
| /** |
| * Gets total blocks written, local and remote. |
| * <p> |
| * This is a local metric. |
| * |
| * @return Total blocks written. |
| */ |
| public long blocksWrittenTotal(); |
| |
| /** |
| * Gets total remote blocks written. |
| * <p> |
| * This is a local metric. |
| * |
| * @return Total blocks written. |
| */ |
| public long blocksWrittenRemote(); |
| |
| /** |
| * Gets total bytes read. |
| * <p> |
| * This is a local metric. |
| * |
| * @return Total bytes read. |
| */ |
| public long bytesRead(); |
| |
| /** |
| * Gets total bytes read time. |
| * <p> |
| * This is a local metric. |
| * |
| * @return Total bytes read time. |
| */ |
| public long bytesReadTime(); |
| |
| /** |
| * Gets total bytes written. |
| * <p> |
| * This is a local metric. |
| * |
| * @return Total bytes written. |
| */ |
| public long bytesWritten(); |
| |
| /** |
| * Gets total bytes write time. |
| * <p> |
| * This is a local metric. |
| * |
| * @return Total bytes write time. |
| */ |
| public long bytesWriteTime(); |
| } |