Package org.apache.flink.runtime.entrypoint

Class ClusterEntrypointUtils

    • Field Detail

      • LOG

        protected static final org.slf4j.Logger LOG

    • Method Detail

      • parseParametersOrExit

        public static <T> T parseParametersOrExit​(String[] args,
                                          ParserResultFactory<T> parserResultFactory,
                                          Class<?> mainClass)
        Parses passed String array using the parameter definitions of the passed ParserResultFactory. The method will call System.exit and print the usage information to stdout in case of a parsing error.
        Type Parameters:
        T - The parsing result type.
        Parameters:
        args - The String array that shall be parsed.
        parserResultFactory - The ParserResultFactory that collects the parameter parsing instructions.
        mainClass - The main class initiating the parameter parsing.
        Returns:
        The parsing result.

      • tryFindUserLibDirectory

        public static Optional<File> tryFindUserLibDirectory()
        Tries to find the user library directory.
        Returns:
        the user library directory if it exits, returns Optional.empty() if there is none

      • getPoolSize

        public static int getPoolSize​(org.apache.flink.configuration.Configuration config)
        Gets and verify the io-executor pool size based on configuration.
        Parameters:
        config - The configuration to read.
        Returns:
        The legal io-executor pool size.

      • configureUncaughtExceptionHandler

        public static void configureUncaughtExceptionHandler​(org.apache.flink.configuration.Configuration config)
        Sets the uncaught exception handler for current thread based on configuration.
        Parameters:
        config - the configuration to read.

      • createTaskManagerWorkingDirectory

        public static DeterminismEnvelope<WorkingDirectory> createTaskManagerWorkingDirectory​(org.apache.flink.configuration.Configuration configuration,
                                                                                      DeterminismEnvelope<ResourceID> envelopedResourceId)
                                                                               throws IOException
        Creates the working directory for the TaskManager process. This method ensures that the working directory exists.
        Parameters:
        configuration - to extract the required settings from
        envelopedResourceId - identifying the TaskManager process
        Returns:
        working directory
        Throws:
        IOException - if the working directory could not be created

      • generateTaskManagerWorkingDirectoryFile

        @VisibleForTesting
public static File generateTaskManagerWorkingDirectoryFile​(org.apache.flink.configuration.Configuration configuration,
                                                           ResourceID resourceId)
        Generates the working directory File for the TaskManager process. This method does not ensure that the working directory exists.
        Parameters:
        configuration - to extract the required settings from
        resourceId - identifying the TaskManager process
        Returns:
        working directory file

      • generateJobManagerWorkingDirectoryFile

        @VisibleForTesting
public static File generateJobManagerWorkingDirectoryFile​(org.apache.flink.configuration.Configuration configuration,
                                                          ResourceID resourceId)
        Generates the working directory File for the JobManager process. This method does not ensure that the working directory exists.
        Parameters:
        configuration - to extract the required settings from
        resourceId - identifying the JobManager process
        Returns:
        working directory file

      • generateWorkingDirectoryFile

        public static File generateWorkingDirectoryFile​(org.apache.flink.configuration.Configuration configuration,
                                                Optional<org.apache.flink.configuration.ConfigOption<String>> workingDirOption,
                                                String workingDirectoryName)
        Generate the working directory from the given configuration. If a working dir option is specified, then this config option will be read first. At last, CoreOptions.TMP_DIRS will be used to extract the working directory base from.
        Parameters:
        configuration - to extract the working directory from
        workingDirOption - optional working dir option
        workingDirectoryName - name of the working directory to create
        Returns:
        working directory

      • createJobManagerWorkingDirectory

        public static DeterminismEnvelope<WorkingDirectory> createJobManagerWorkingDirectory​(org.apache.flink.configuration.Configuration configuration,
                                                                                     DeterminismEnvelope<ResourceID> envelopedResourceId)
                                                                              throws IOException
        Creates the working directory for the JobManager process. This method ensures that the working diretory exists.
        Parameters:
        configuration - to extract the required settings from
        envelopedResourceId - identifying the TaskManager process
        Returns:
        working directory
        Throws:
        IOException - if the working directory could not be created