tanjialiang

Expose external memory reservation interface for MappedMemory

4

Summary: Adds externalReserve(pages) API to allocators. This allows tracking externally allocated memory without sparing resources to do actual allocations. Differential Revision: D38255367

Added onClearCb to SerializedPage for memory cleaning purpose (#824)

1

Summary: X-link: https://github.com/facebookexternal/presto_cpp/pull/824 Allow callers to provide a callback for cleaning up any uncleaned memory usage from the iobuf. This will be used to support memory tracking. Differential Revision: D38255368

Add component for the use case of Batch Velox. The added components include: * Prestissimo worker http client wrapper as a single worker communication endpoint. * Prestissimo worker task result...

Added 2 properties: * use_mmap_arena -> tells the underlying MmapAllocator to use MmapArena if set to true * mmap_arena_capacity_ratio -> the ratio used to determine a single MmapArena capacity to...

Add ExpressionRunner for failure reproduction

3

Expression runner is used to run custom expressions with custom input data. One of the use case scenarios is when ExpressionFuzzer run fails, it preserves the failed expression and its...

[Review Only] Fuzzer repro. Will separate to multiple PRs for landing. This is only for reviewing

2

Extract generateFilePath() out to be a single place to remove duplicate code.

Add file create config to hive session properties

9

This session property will allow file creation option setting on per query basis. This functionality is for Presto native only. ``` == NO RELEASE NOTE == ```

Add per-test memory sanity check in OperatorTestBase

6

This per test sanity check allows test to reveal failures on test level instead of on the entire suite level. This will greatly reduce the time engineers spent in locating...

Add spill stats reporting to PeriodicStatsReporter

5

Add additional stats reporting for spill in PeriodicStatsReporter