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MCOL-987 Add LZ4 compression.

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* Adds CompressInterfaceLZ4 which uses LZ4 API for compress/uncompress.
* Adds CMake machinery to search LZ4 on running host.
* All methods which use static data and do not modify any internal data - become `static`,
  so we can use them without creation of the specific object. This is possible, because
  the header specification has not been modified. We still use 2 sections in header, first
  one with file meta data, the second one with pointers for compressed chunks.
* Methods `compress`, `uncompress`, `maxCompressedSize`, `getUncompressedSize` - become
  pure virtual, so we can override them for the other compression algos.
* Adds method `getChunkMagicNumber`, so we can verify chunk magic number
  for each compression algo.
* Renames "s/IDBCompressInterface/CompressInterface/g" according to requirement.
This commit is contained in:
Denis Khalikov
2021-04-01 17:26:38 +03:00
parent dd12bd3cd0
commit cc1c3629c5
45 changed files with 1311 additions and 549 deletions
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7
tools/rebuildEM/rebuildEM.h
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@ -112,7 +112,8 @@ class EMReBuilder
int32_t searchHWMInSegmentFile(
uint32_t oid, uint32_t dbRoot, uint32_t partition, uint32_t segment,
execplan::CalpontSystemCatalog::ColDataType colDataType,
uint32_t width, uint64_t blocksCount, bool isDict, uint64_t& hwm);
uint32_t width, uint64_t blocksCount, bool isDict,
uint32_t compressionType, uint64_t& hwm);
// Sets the dbroot to the given `number`.
void setDBRoot(uint32_t number) { dbRoot = number; }
@ -184,7 +185,7 @@ class ChunkManagerWrapperColumn : public ChunkManagerWrapper
ChunkManagerWrapperColumn(
uint32_t oid, uint32_t dbRoot, uint32_t partition, uint32_t segment,
execplan::CalpontSystemCatalog::ColDataType colDataType,
uint32_t colWidth);
uint32_t colWidth, uint32_t compressionType);
~ChunkManagerWrapperColumn() = default;
ChunkManagerWrapperColumn(const ChunkManagerWrapperColumn& other) = delete;
@ -210,7 +211,7 @@ class ChunkManagerWrapperDict : public ChunkManagerWrapper
ChunkManagerWrapperDict(
uint32_t oid, uint32_t dbRoot, uint32_t partition, uint32_t segment,
execplan::CalpontSystemCatalog::ColDataType colDataType,
uint32_t colWidth);
uint32_t colWidth, uint32_t compressionType);
~ChunkManagerWrapperDict() = default;
ChunkManagerWrapperDict(const ChunkManagerWrapperDict& other) = delete;