| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Network.Hadoop.Read
Contents
- data HdfsReadHandle
- openRead :: HdfsPath -> Hdfs (Maybe HdfsReadHandle)
- hdfsMapM_ :: (MonadIO m, MonadMask m) => (ByteString -> m ()) -> HdfsReadHandle -> m ()
- hdfsFoldM :: (MonadIO m, MonadMask m) => (a -> ByteString -> m a) -> a -> HdfsReadHandle -> m a
- hdfsCat :: HdfsPath -> Hdfs ()
Documentation
data HdfsReadHandle Source
openRead :: HdfsPath -> Hdfs (Maybe HdfsReadHandle) Source
Open an HDFS path for reading. This retrieves the block locations for an HDFS path, but does not yet initiate any data transfers.
hdfsMapM_ :: (MonadIO m, MonadMask m) => (ByteString -> m ()) -> HdfsReadHandle -> m () Source
Map an action over the contents of a file on HDFS.
hdfsFoldM :: (MonadIO m, MonadMask m) => (a -> ByteString -> m a) -> a -> HdfsReadHandle -> m a Source