HADOOP-13305. Define common statistics names across schemes. Contributed by Mingliang Liu.
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@ -118,6 +118,11 @@ private static Long fetch(StatisticsData data, String key) {
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this.stats = stats;
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}
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@Override
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public String getScheme() {
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return stats.getScheme();
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}
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@Override
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public Iterator<LongStatistic> getLongStatistics() {
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return new LongStatisticIterator(stats.getData());
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@ -27,6 +27,51 @@
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*/
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@InterfaceAudience.Public
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public abstract class StorageStatistics {
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/**
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* These are common statistic names.
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*
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* The following names are considered general and preserved across different
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* StorageStatistics classes. When implementing a new StorageStatistics, it is
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* highly recommended to use the common statistic names.
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*
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* When adding new common statistic name constants, please make them unique.
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* By convention, they are implicitly unique:
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* - the name of the constants are uppercase, words separated by underscores.
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* - the value of the constants are lowercase of the constant names.
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*/
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public interface CommonStatisticNames {
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// The following names are for file system operation invocations
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String OP_APPEND = "op_append";
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String OP_COPY_FROM_LOCAL_FILE = "op_copy_from_local_file";
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String OP_CREATE = "op_create";
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String OP_CREATE_NON_RECURSIVE = "op_create_non_recursive";
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String OP_DELETE = "op_delete";
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String OP_EXISTS = "op_exists";
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String OP_GET_CONTENT_SUMMARY = "op_get_content_summary";
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String OP_GET_FILE_CHECKSUM = "op_get_file_checksum";
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String OP_GET_FILE_STATUS = "op_get_file_status";
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String OP_GET_STATUS = "op_get_status";
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String OP_GLOB_STATUS = "op_glob_status";
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String OP_IS_FILE = "op_is_file";
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String OP_IS_DIRECTORY = "op_is_directory";
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String OP_LIST_FILES = "op_list_files";
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String OP_LIST_LOCATED_STATUS = "op_list_located_status";
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String OP_LIST_STATUS = "op_list_status";
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String OP_MKDIRS = "op_mkdirs";
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String OP_MODIFY_ACL_ENTRIES = "op_modify_acl_entries";
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String OP_OPEN = "op_open";
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String OP_REMOVE_ACL = "op_remove_acl";
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String OP_REMOVE_ACL_ENTRIES = "op_remove_acl_entries";
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String OP_REMOVE_DEFAULT_ACL = "op_remove_default_acl";
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String OP_RENAME = "op_rename";
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String OP_SET_ACL = "op_set_acl";
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String OP_SET_OWNER = "op_set_owner";
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String OP_SET_PERMISSION = "op_set_permission";
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String OP_SET_TIMES = "op_set_times";
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String OP_TRUNCATE = "op_truncate";
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}
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/**
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* A 64-bit storage statistic.
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*/
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@ -67,6 +112,14 @@ public String getName() {
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return name;
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}
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/**
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* @return the associated file system scheme if this is scheme specific,
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* else return null.
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*/
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public String getScheme() {
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return null;
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}
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/**
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* Get an iterator over all the currently tracked long statistics.
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*
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@ -18,6 +18,7 @@
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package org.apache.hadoop.hdfs;
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import org.apache.hadoop.fs.StorageStatistics;
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import org.apache.hadoop.hdfs.protocol.HdfsConstants;
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import java.util.EnumMap;
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import java.util.Iterator;
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@ -37,55 +38,55 @@
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*/
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public class DFSOpsCountStatistics extends StorageStatistics {
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/** This is for counting file system operations. */
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/** This is for counting distributed file system operations. */
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public enum OpType {
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ALLOW_SNAPSHOT("allowSnapshot"),
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APPEND("append"),
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CONCAT("concat"),
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COPY_FROM_LOCAL_FILE("copyFromLocalFile"),
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CREATE("create"),
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CREATE_NON_RECURSIVE("createNonRecursive"),
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CREATE_SNAPSHOT("createSnapshot"),
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CREATE_SYM_LINK("createSymlink"),
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DELETE("delete"),
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DELETE_SNAPSHOT("deleteSnapshot"),
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DISALLOW_SNAPSHOT("disallowSnapshot"),
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EXISTS("exists"),
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GET_BYTES_WITH_FUTURE_GS("getBytesWithFutureGenerationStamps"),
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GET_CONTENT_SUMMARY("getContentSummary"),
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GET_FILE_BLOCK_LOCATIONS("getFileBlockLocations"),
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GET_FILE_CHECKSUM("getFileChecksum"),
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GET_FILE_LINK_STATUS("getFileLinkStatus"),
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GET_FILE_STATUS("getFileStatus"),
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GET_LINK_TARGET("getLinkTarget"),
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GET_QUOTA_USAGE("getQuotaUsage"),
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GET_STATUS("getStatus"),
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GET_STORAGE_POLICIES("getStoragePolicies"),
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GET_STORAGE_POLICY("getStoragePolicy"),
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GET_XATTR("getXAttr"),
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LIST_LOCATED_STATUS("listLocatedStatus"),
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LIST_STATUS("listStatus"),
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MKDIRS("mkdirs"),
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MODIFY_ACL_ENTRIES("modifyAclEntries"),
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OPEN("open"),
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PRIMITIVE_CREATE("primitiveCreate"),
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PRIMITIVE_MKDIR("primitiveMkdir"),
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REMOVE_ACL("removeAcl"),
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REMOVE_ACL_ENTRIES("removeAclEntries"),
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REMOVE_DEFAULT_ACL("removeDefaultAcl"),
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REMOVE_XATTR("removeXAttr"),
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RENAME("rename"),
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RENAME_SNAPSHOT("renameSnapshot"),
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RESOLVE_LINK("resolveLink"),
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SET_ACL("setAcl"),
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SET_OWNER("setOwner"),
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SET_PERMISSION("setPermission"),
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SET_REPLICATION("setReplication"),
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SET_STORAGE_POLICY("setStoragePolicy"),
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SET_TIMES("setTimes"),
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SET_XATTR("setXAttr"),
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TRUNCATE("truncate"),
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UNSET_STORAGE_POLICY("unsetStoragePolicy");
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ALLOW_SNAPSHOT("op_allow_snapshot"),
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APPEND(CommonStatisticNames.OP_APPEND),
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CONCAT("op_concat"),
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COPY_FROM_LOCAL_FILE(CommonStatisticNames.OP_COPY_FROM_LOCAL_FILE),
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CREATE(CommonStatisticNames.OP_CREATE),
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CREATE_NON_RECURSIVE(CommonStatisticNames.OP_CREATE_NON_RECURSIVE),
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CREATE_SNAPSHOT("op_create_snapshot"),
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CREATE_SYM_LINK("op_create_symlink"),
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DELETE(CommonStatisticNames.OP_DELETE),
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DELETE_SNAPSHOT("op_delete_snapshot"),
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DISALLOW_SNAPSHOT("op_disallow_snapshot"),
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EXISTS(CommonStatisticNames.OP_EXISTS),
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GET_BYTES_WITH_FUTURE_GS("op_get_bytes_with_future_generation_stamps"),
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GET_CONTENT_SUMMARY(CommonStatisticNames.OP_GET_CONTENT_SUMMARY),
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GET_FILE_BLOCK_LOCATIONS("op_get_file_block_locations"),
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GET_FILE_CHECKSUM(CommonStatisticNames.OP_GET_FILE_CHECKSUM),
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GET_FILE_LINK_STATUS("op_get_file_link_status"),
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GET_FILE_STATUS(CommonStatisticNames.OP_GET_FILE_STATUS),
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GET_LINK_TARGET("op_get_link_target"),
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GET_QUOTA_USAGE("op_get_quota_usage"),
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GET_STATUS(CommonStatisticNames.OP_GET_STATUS),
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GET_STORAGE_POLICIES("op_get_storage_policies"),
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GET_STORAGE_POLICY("op_get_storage_policy"),
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GET_XATTR("op_get_xattr"),
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LIST_LOCATED_STATUS(CommonStatisticNames.OP_LIST_LOCATED_STATUS),
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LIST_STATUS(CommonStatisticNames.OP_LIST_STATUS),
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MKDIRS(CommonStatisticNames.OP_MKDIRS),
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MODIFY_ACL_ENTRIES(CommonStatisticNames.OP_MODIFY_ACL_ENTRIES),
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OPEN(CommonStatisticNames.OP_OPEN),
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PRIMITIVE_CREATE("op_primitive_create"),
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PRIMITIVE_MKDIR("op_primitive_mkdir"),
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REMOVE_ACL(CommonStatisticNames.OP_REMOVE_ACL),
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REMOVE_ACL_ENTRIES(CommonStatisticNames.OP_REMOVE_ACL_ENTRIES),
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REMOVE_DEFAULT_ACL(CommonStatisticNames.OP_REMOVE_DEFAULT_ACL),
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REMOVE_XATTR("op_remove_xattr"),
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RENAME(CommonStatisticNames.OP_RENAME),
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RENAME_SNAPSHOT("op_rename_snapshot"),
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RESOLVE_LINK("op_resolve_link"),
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SET_ACL(CommonStatisticNames.OP_SET_ACL),
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SET_OWNER(CommonStatisticNames.OP_SET_OWNER),
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SET_PERMISSION(CommonStatisticNames.OP_SET_PERMISSION),
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SET_REPLICATION("op_set_replication"),
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SET_STORAGE_POLICY("op_set_storagePolicy"),
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SET_TIMES(CommonStatisticNames.OP_SET_TIMES),
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SET_XATTR("op_set_xattr"),
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TRUNCATE(CommonStatisticNames.OP_TRUNCATE),
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UNSET_STORAGE_POLICY("op_unset_storage_policy");
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private final String symbol;
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@ -149,6 +150,11 @@ public void remove() {
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}
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}
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@Override
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public String getScheme() {
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return HdfsConstants.HDFS_URI_SCHEME;
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}
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@Override
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public Iterator<LongStatistic> getLongStatistics() {
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return new LongIterator();
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@ -31,8 +31,10 @@
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import org.junit.rules.Timeout;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.Set;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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@ -66,6 +68,19 @@ public static void setup() {
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}
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}
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/**
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* This is to test the the {@link OpType} symbols are unique.
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*/
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@Test
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public void testOpTypeSymbolsAreUnique() {
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final Set<String> opTypeSymbols = new HashSet<>();
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for (OpType opType : OpType.values()) {
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assertFalse(opTypeSymbols.contains(opType.getSymbol()));
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opTypeSymbols.add(opType.getSymbol());
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}
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assertEquals(OpType.values().length, opTypeSymbols.size());
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}
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@Test
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public void testGetLongStatistics() {
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short iterations = 0; // number of the iter.hasNext()
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@ -86,6 +86,11 @@ public void remove() {
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}
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}
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@Override
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public String getScheme() {
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return "s3a";
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}
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@Override
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public Iterator<LongStatistic> getLongStatistics() {
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return new LongIterator();
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@ -18,6 +18,8 @@
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package org.apache.hadoop.fs.s3a;
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import org.apache.hadoop.fs.StorageStatistics.CommonStatisticNames;
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/**
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* Statistic which are collected in S3A.
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* These statistics are available at a low level in {@link S3AStorageStatistics}
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@ -38,27 +40,27 @@ public enum Statistic {
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FILES_DELETED("files_deleted",
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"Total number of files deleted from the object store."),
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IGNORED_ERRORS("ignored_errors", "Errors caught and ignored"),
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INVOCATION_COPY_FROM_LOCAL_FILE("invocations_copyfromlocalfile",
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INVOCATION_COPY_FROM_LOCAL_FILE(CommonStatisticNames.OP_COPY_FROM_LOCAL_FILE,
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"Calls of copyFromLocalFile()"),
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INVOCATION_EXISTS("invocations_exists",
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INVOCATION_EXISTS(CommonStatisticNames.OP_EXISTS,
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"Calls of exists()"),
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INVOCATION_GET_FILE_STATUS("invocations_getfilestatus",
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INVOCATION_GET_FILE_STATUS(CommonStatisticNames.OP_GET_FILE_STATUS,
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"Calls of getFileStatus()"),
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INVOCATION_GLOB_STATUS("invocations_globstatus",
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INVOCATION_GLOB_STATUS(CommonStatisticNames.OP_GLOB_STATUS,
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"Calls of globStatus()"),
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INVOCATION_IS_DIRECTORY("invocations_is_directory",
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INVOCATION_IS_DIRECTORY(CommonStatisticNames.OP_IS_DIRECTORY,
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"Calls of isDirectory()"),
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INVOCATION_IS_FILE("invocations_is_file",
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INVOCATION_IS_FILE(CommonStatisticNames.OP_IS_FILE,
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"Calls of isFile()"),
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INVOCATION_LIST_FILES("invocations_listfiles",
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INVOCATION_LIST_FILES(CommonStatisticNames.OP_LIST_FILES,
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"Calls of listFiles()"),
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INVOCATION_LIST_LOCATED_STATUS("invocations_listlocatedstatus",
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INVOCATION_LIST_LOCATED_STATUS(CommonStatisticNames.OP_LIST_LOCATED_STATUS,
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"Calls of listLocatedStatus()"),
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INVOCATION_LIST_STATUS("invocations_liststatus",
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INVOCATION_LIST_STATUS(CommonStatisticNames.OP_LIST_STATUS,
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"Calls of listStatus()"),
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INVOCATION_MKDIRS("invocations_mdkirs",
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INVOCATION_MKDIRS(CommonStatisticNames.OP_MKDIRS,
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"Calls of mkdirs()"),
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INVOCATION_RENAME("invocations_rename",
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INVOCATION_RENAME(CommonStatisticNames.OP_RENAME,
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"Calls of rename()"),
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OBJECT_COPY_REQUESTS("object_copy_requests", "Object copy requests"),
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OBJECT_DELETE_REQUESTS("object_delete_requests", "Object delete requests"),
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