Package com.github.ambry.config

Class HelixAccountServiceConfig

    • Field Detail

      • HELIX_ACCOUNT_SERVICE_PREFIX

        public static final java.lang.String HELIX_ACCOUNT_SERVICE_PREFIX
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        Constant Field Values

      • UPDATER_POLLING_INTERVAL_MS_KEY

        public static final java.lang.String UPDATER_POLLING_INTERVAL_MS_KEY
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        Constant Field Values

      • UPDATER_SHUT_DOWN_TIMEOUT_MS_KEY

        public static final java.lang.String UPDATER_SHUT_DOWN_TIMEOUT_MS_KEY
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        Constant Field Values

      • BACKUP_DIRECTORY_KEY

        public static final java.lang.String BACKUP_DIRECTORY_KEY
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        Constant Field Values

      • MAX_BACKUP_FILE_COUNT

        public static final java.lang.String MAX_BACKUP_FILE_COUNT
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        Constant Field Values

      • ZK_CLIENT_CONNECT_STRING_KEY

        public static final java.lang.String ZK_CLIENT_CONNECT_STRING_KEY
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        Constant Field Values

      • USE_NEW_ZNODE_PATH

        public static final java.lang.String USE_NEW_ZNODE_PATH
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        Constant Field Values

      • ENABLE_SERVE_FROM_BACKUP

        public static final java.lang.String ENABLE_SERVE_FROM_BACKUP
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        Constant Field Values

      • TOTAL_NUMBER_OF_VERSION_TO_KEEP

        public static final java.lang.String TOTAL_NUMBER_OF_VERSION_TO_KEEP
        See Also:
        Constant Field Values

      • zkClientConnectString

        @Config("helix.account.service.zk.client.connect.string")
public final java.lang.String zkClientConnectString
        The ZooKeeper server address. This config is required when using HelixAccountService.

      • updaterPollingIntervalMs

        @Config("helix.account.service.updater.polling.interval.ms")
@Default("60 * 60 * 1000")
public final int updaterPollingIntervalMs
        The time interval in second between two consecutive account pulling for the background account updater of HelixAccountService. Setting to 0 to disable it.

      • updaterShutDownTimeoutMs

        @Config("helix.account.service.updater.shut.down.timeout.ms")
@Default("60 * 1000")
public final int updaterShutDownTimeoutMs
        The timeout in ms to shut down the account updater of HelixAccountService.

      • backupDir

        @Config("helix.account.service.backup.dir")
@Default("")
public final java.lang.String backupDir
        The directory on the local machine where account data backups will be stored before updating accounts. If this string is empty, backups will be disabled.

      • maxBackupFileCount

        @Config("helix.account.service.max.backup.file.count")
@Default("100")
public final int maxBackupFileCount
        The maximum number of local backup files kept in disk. When account service exceeds this count, every time it creates a new backup file, it will remove the oldest one.

      • useNewZNodePath

        @Config("helix.account.service.use.new.znode.path")
@Default("false")
public final boolean useNewZNodePath
        If true, then use the new znode path to store list of blob ids that point to account metadata content.

      • updateDisabled

        @Config("helix.account.service.update.disabled")
@Default("false")
public final boolean updateDisabled
        If true, HelixAccountService would reject all the requests to update accounts.

      • enableServeFromBackup

        @Config("helix.account.service.enable.serve.from.backup")
@Default("false")
public final boolean enableServeFromBackup
        If true, HelixAccountService would load the account metadata from local backup file when fetching from helix fails. Set it to false while transitioning, since the old backup files don't have up-to-date account metadata.

      • totalNumberOfVersionToKeep

        @Config("helix.account.service.total.number.of.version.to.keep")
@Default("100")
public final int totalNumberOfVersionToKeep
        Total number of previous versions of account metadata to keep in the system. Every update account http request would generate a new version. And when the number of versions surpasses this number, HelixAccountService will purge the oldest one to make room for the new one.

    • Constructor Detail

      • HelixAccountServiceConfig

        public HelixAccountServiceConfig​(VerifiableProperties verifiableProperties)