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1415f8820d
Summary:
The primary motivation of the changes is to make it easier to figure out the inside of the tables.
* rename "table stats" to "table properties" since now we have more than "integers" to store in the property block.
* Add filter block size to the basic table properties.
* Whenever a table is built, we'll log the table properties (the sample output is in Test Plan).
* Make an api to expose deleted keys.
Test Plan:
Passed all existing test. and the sample output of table stats:
==================================================================
Basic Properties
------------------------------------------------------------------
# data blocks: 1
# entries: 1
raw key size: 9
raw average key size: 9
raw value size: 9
raw average value size: 0
data block size: 25
index block size: 27
filter block size: 18
(estimated) table size: 70
filter policy: rocksdb.BuiltinBloomFilter
==================================================================
User collected properties: InternalKeyPropertiesCollector
------------------------------------------------------------------
kDeletedKeys: 1
==================================================================
Reviewers: dhruba, haobo
Reviewed By: dhruba
CC: leveldb
Differential Revision: https://reviews.facebook.net/D14187
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| .. | ||
| block.cc | ||
| block.h | ||
| block_based_table_builder.cc | ||
| block_based_table_builder.h | ||
| block_based_table_factory.cc | ||
| block_based_table_factory.h | ||
| block_based_table_reader.cc | ||
| block_based_table_reader.h | ||
| block_builder.cc | ||
| block_builder.h | ||
| block_test.cc | ||
| filter_block.cc | ||
| filter_block.h | ||
| filter_block_test.cc | ||
| flush_block_policy.cc | ||
| format.cc | ||
| format.h | ||
| iter_heap.h | ||
| iterator.cc | ||
| iterator_wrapper.h | ||
| merger.cc | ||
| merger.h | ||
| table_reader_bench.cc | ||
| table_test.cc | ||
| two_level_iterator.cc | ||
| two_level_iterator.h | ||