[feature](hive) support hive write text table

be/src/common/config.cpp

@@ -1314,6 +1314,8 @@ DEFINE_Validator(tablet_meta_serialize_size_limit,
                  [](const int64_t config) -> bool { return config < 1717986918; });
 
 DEFINE_mInt64(pipeline_task_leakage_detect_period_secs, "60");
+DEFINE_mInt32(snappy_compression_block_size, "262144");
+DEFINE_mInt32(lz4_compression_block_size, "262144");
 
 // clang-format off
 #ifdef BE_TEST

be/src/common/config.h

@@ -1410,6 +1410,9 @@ DECLARE_mInt16(topn_agg_limit_multiplier);
 DECLARE_mInt64(tablet_meta_serialize_size_limit);
 
 DECLARE_mInt64(pipeline_task_leakage_detect_period_secs);
+// To be compatible with hadoop's block compression
+DECLARE_mInt32(snappy_compression_block_size);
+DECLARE_mInt32(lz4_compression_block_size);
 
 #ifdef BE_TEST
 // test s3

be/src/exec/decompressor.cpp

@@ -535,90 +535,114 @@ Status SnappyBlockDecompressor::init() {
     return Status::OK();
 }
 
+// Hadoop snappycodec source :
+// https://github.com/apache/hadoop/blob/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/src/codec/SnappyCodec.cc
+// Example:
+// OriginData(The original data will be divided into several large data block.) :
+//      large data block1 | large data block2 | large data block3 | ....
+// The large data block will be divided into several small data block.
+// Suppose a large data block is divided into three small blocks:
+// large data block1:            | small block1 | small block2 | small block3 |
+// CompressData:   <A [B1 compress(small block1) ] [B2 compress(small block1) ] [B3 compress(small block1)]>
+//
+// A : original length of the current block of large data block.
+// sizeof(A) = 4 bytes.
+// A = length(small block1) + length(small block2) + length(small block3)
+// Bx : length of  small data block bx.
+// sizeof(Bx) = 4 bytes.
+// Bx = length(compress(small blockx))
 Status SnappyBlockDecompressor::decompress(uint8_t* input, size_t input_len,
                                            size_t* input_bytes_read, uint8_t* output,
                                            size_t output_max_len, size_t* decompressed_len,
                                            bool* stream_end, size_t* more_input_bytes,
                                            size_t* more_output_bytes) {
-    uint8_t* src = input;
-    size_t remaining_input_size = input_len;
-    int64_t uncompressed_total_len = 0;
-    *input_bytes_read = 0;
+    auto* input_ptr = input;
+    auto* output_ptr = output;
 
-    // The hadoop snappy codec is as:
-    // <4 byte big endian uncompressed size>
-    // <4 byte big endian compressed size>
-    // <snappy compressed block>
-    // ....
-    // <4 byte big endian uncompressed size>
-    // <4 byte big endian compressed size>
-    // <snappy compressed block>
-    //
-    // See:
-    // https://github.com/apache/hadoop/blob/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/src/codec/SnappyCodec.cc
-    while (remaining_input_size > 0) {
-        if (remaining_input_size < 4) {
-            *more_input_bytes = 4 - remaining_input_size;
-            break;
+    while (input_len > 0) {
+        //if faild ,  fall back to large block begin
+        auto* large_block_input_ptr = input_ptr;
+        auto* large_block_output_ptr = output_ptr;
+
+        if (input_len < sizeof(uint32_t)) {
+            return Status::InvalidArgument(strings::Substitute(
+                    "fail to do hadoop-snappy decompress, input_len=$0", input_len));
         }
-        // Read uncompressed size
-        uint32_t uncompressed_block_len = Decompressor::_read_int32(src);
-        int64_t remaining_output_len = output_max_len - uncompressed_total_len;
-        if (remaining_output_len < uncompressed_block_len) {
+
+        uint32_t remaining_decompressed_large_block_len = BigEndian::Load32(input_ptr);
+
+        input_ptr += sizeof(uint32_t);
+        input_len -= sizeof(uint32_t);
+
+        std::size_t remaining_output_len = output_max_len - *decompressed_len;
+
+        if (remaining_output_len < remaining_decompressed_large_block_len) {
             // Need more output buffer
-            *more_output_bytes = uncompressed_block_len - remaining_output_len;
-            break;
-        }
+            *more_output_bytes = remaining_decompressed_large_block_len - remaining_output_len;
+            input_ptr = large_block_input_ptr;
+            output_ptr = large_block_output_ptr;
 
-        if (uncompressed_block_len == 0) {
-            remaining_input_size -= sizeof(uint32_t);
             break;
         }
 
-        if (remaining_input_size <= 2 * sizeof(uint32_t)) {
-            // The remaining input size should be larger then <uncompressed size><compressed size><compressed data>
-            // +1 means we need at least 1 bytes of compressed data.
-            *more_input_bytes = 2 * sizeof(uint32_t) + 1 - remaining_input_size;
-            break;
-        }
+        std::size_t decompressed_large_block_len = 0;
+        do {
+            // Check that input length should not be negative.
+            if (input_len < sizeof(uint32_t)) {
+                *more_input_bytes = sizeof(uint32_t) - input_len;
+                break;
+            }
 
-        // Read compressed size
-        size_t tmp_remaining_size = remaining_input_size - 2 * sizeof(uint32_t);
-        size_t compressed_len = _read_int32(src + sizeof(uint32_t));
-        if (compressed_len > tmp_remaining_size) {
-            // Need more input data
-            *more_input_bytes = compressed_len - tmp_remaining_size;
-            break;
-        }
+            // Read the length of the next snappy compressed block.
+            size_t compressed_small_block_len = BigEndian::Load32(input_ptr);
 
-        src += 2 * sizeof(uint32_t);
-        remaining_input_size -= 2 * sizeof(uint32_t);
-
-        // ATTN: the uncompressed len from GetUncompressedLength() is same as
-        // uncompressed_block_len, so I think it is unnecessary to get it again.
-        // Get uncompressed len from snappy
-        // size_t uncompressed_len;
-        // if (!snappy::GetUncompressedLength(reinterpret_cast<const char*>(src),
-        //             compressed_len, &uncompressed_len)) {
-        //     return Status::InternalError("snappy block decompress failed to get uncompressed len");
-        // }
-
-        // Decompress
-        if (!snappy::RawUncompress(reinterpret_cast<const char*>(src), compressed_len,
-                                   reinterpret_cast<char*>(output))) {
-            return Status::InternalError(
-                    "snappy block decompress failed. uncompressed_len: {}, compressed_len: {}",
-                    uncompressed_block_len, compressed_len);
+            input_ptr += sizeof(uint32_t);
+            input_len -= sizeof(uint32_t);
+
+            if (compressed_small_block_len == 0) {
+                continue;
+            }
+
+            if (compressed_small_block_len > input_len) {
+                // Need more input buffer
+                *more_input_bytes = compressed_small_block_len - input_len;
+                break;
+            }
+
+            // Decompress this block.
+            size_t decompressed_small_block_len;
+            if (!snappy::GetUncompressedLength(reinterpret_cast<const char*>(input_ptr),
+                                               compressed_small_block_len,
+                                               &decompressed_small_block_len)) {
+                return Status::InternalError(
+                        "snappy block decompress failed to get uncompressed len");
+            }
+            if (!snappy::RawUncompress(reinterpret_cast<const char*>(input_ptr),
+                                       compressed_small_block_len,
+                                       reinterpret_cast<char*>(output_ptr))) {
+                return Status::InternalError(
+                        "snappy block decompress failed. uncompressed_len: {}, compressed_len: {}",
+                        decompressed_small_block_len, compressed_small_block_len);
+            }
+            input_ptr += compressed_small_block_len;
+            input_len -= compressed_small_block_len;
+
+            output_ptr += decompressed_small_block_len;
+            remaining_decompressed_large_block_len -= decompressed_small_block_len;
+            decompressed_large_block_len += decompressed_small_block_len;
+
+        } while (remaining_decompressed_large_block_len > 0);
+
+        if (*more_input_bytes != 0) {
+            // Need more input buffer
+            input_ptr = large_block_input_ptr;
+            output_ptr = large_block_output_ptr;
+            break;
         }
 
-        output += uncompressed_block_len;
-        src += compressed_len;
-        remaining_input_size -= compressed_len;
-        uncompressed_total_len += uncompressed_block_len;
+        *decompressed_len += decompressed_large_block_len;
     }
-
-    *input_bytes_read += (input_len - remaining_input_size);
-    *decompressed_len = uncompressed_total_len;
+    *input_bytes_read += (input_ptr - input);
     // If no more input and output need, means this is the end of a compressed block
     *stream_end = (*more_input_bytes == 0 && *more_output_bytes == 0);