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Yanqin Jin 9aa1b1dc19 Hack to load OPTIONS file for read_amp_bytes_per_bit (#7659) 
Summary:
A temporary hack to work around a bug in 6.10, 6.11, 6.12, 6.13 and
6.14. The bug will write out 8 bytes to OPTIONS file from the starting
address of BlockBasedTableOptions.read_amp_bytes_per_bit which is
actually a uint32. Consequently, the value of read_amp_bytes_per_bit
written in the OPTIONS file is wrong. From 6.15, RocksDB will
try to parse the read_amp_bytes_per_bit from OPTIONS file as a uint32.
To be able to load OPTIONS file generated by affected releases before
the fix, we need to manually parse read_amp_bytes_per_bit with this hack.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7659

Test Plan:
Generate a db with current 6.14.fb (head at b6db05dbb5). Maybe use db_stress.

Checkout this PR, run
```
 ~/rocksdb/ldb --db=. --try_load_options --ignore_unknown_options idump --count_only
```
Expect success, and should not see
```
Failed: Invalid argument: Error parsing read_amp_bytes_per_bit:17179869184
```

Also
make check

Reviewed By: anand1976

Differential Revision: D24954752

Pulled By: riversand963

fbshipit-source-id: c7b802fc3e52acd050a4fc1cd475016122234394
2020-11-13 11:52:50 -08:00
..
adaptive Bring the Configurable options together (#5753) 2020-09-14 17:01:01 -07:00
block_based Hack to load OPTIONS file for read_amp_bytes_per_bit (#7659) 2020-11-13 11:52:50 -08:00
cuckoo Create a Customizable class to load classes and configurations (#6590) 2020-11-11 15:10:41 -08:00
plain Create a Customizable class to load classes and configurations (#6590) 2020-11-11 15:10:41 -08:00
block_fetcher.cc Skip unnecessary allocation for mmap reads under 5000 bytes (#7043) 2020-06-30 15:40:40 -07:00
block_fetcher.h Reduce memory copies when fetching and uncompressing blocks from SST files (#6689) 2020-04-24 15:32:56 -07:00
block_fetcher_test.cc Add Status check enforcement for unit tests (#7464) 2020-09-30 12:48:05 -07:00
cleanable_test.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
format.cc Remove unused includes (#7604) 2020-10-28 23:22:27 -07:00
format.h Add a host location property to TableProperties (#7479) 2020-10-19 11:38:48 -07:00
get_context.cc Introduce BlobFileCache and add support for blob files to Get() (#7540) 2020-10-15 13:04:47 -07:00
get_context.h Introduce BlobFileCache and add support for blob files to Get() (#7540) 2020-10-15 13:04:47 -07:00
internal_iterator.h Clean up InternalIterator upper bound logic a little bit (#7200) 2020-08-05 10:44:57 -07:00
iter_heap.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
iterator.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
iterator_wrapper.h Redesign block cache pinning API (#7520) 2020-10-11 14:58:24 -07:00
merger_test.cc More Makefile Cleanup (#7097) 2020-07-09 14:35:17 -07:00
merging_iterator.cc Add some simulator cache and block tracer tests to ASSERT_STATUS_CHECKED (#7305) 2020-08-24 16:43:31 -07:00
merging_iterator.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
meta_blocks.cc Add a host location property to TableProperties (#7479) 2020-10-19 11:38:48 -07:00
meta_blocks.h Extend Get/MultiGet deadline support to table open (#6982) 2020-06-29 14:53:17 -07:00
mock_table.cc Add full_history_ts_low_ to CompactionJob (#7657) 2020-11-12 11:43:24 -08:00
mock_table.h Add full_history_ts_low_ to CompactionJob (#7657) 2020-11-12 11:43:24 -08:00
multiget_context.h Fix MultiGet unable to query timestamp data issue (#7589) 2020-11-03 09:45:41 -08:00
persistent_cache_helper.cc Add more tests to ASSERT_STATUS_CHECKED (#7367) 2020-09-16 15:48:07 -07:00
persistent_cache_helper.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
persistent_cache_options.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
scoped_arena_iterator.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
sst_file_dumper.cc In ParseInternalKey(), include corrupt key info in Status (#7515) 2020-10-28 10:12:58 -07:00
sst_file_dumper.h Add sst_file_dumper status check (#7315) 2020-09-04 19:26:42 -07:00
sst_file_reader.cc Fix scope of ReadOptions in SstFileReader (#7432) 2020-09-23 15:24:03 -07:00
sst_file_reader_test.cc Add a host location property to TableProperties (#7479) 2020-10-19 11:38:48 -07:00
sst_file_writer.cc enable Status check assertions for sst_file_reader_test (#7448) 2020-09-28 15:13:15 -07:00
sst_file_writer_collectors.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
table_builder.h Store DB identity and DB session ID in SST files (#6983) 2020-06-17 10:57:40 -07:00
table_factory.cc Create a Customizable class to load classes and configurations (#6590) 2020-11-11 15:10:41 -08:00
table_properties.cc Add a host location property to TableProperties (#7479) 2020-10-19 11:38:48 -07:00
table_properties_internal.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
table_reader.h dedup ReadOptions in iterator hierarchy (#7210) 2020-08-03 15:23:04 -07:00
table_reader_bench.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
table_reader_caller.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
table_test.cc In ParseInternalKey(), include corrupt key info in Status (#7515) 2020-10-28 10:12:58 -07:00
two_level_iterator.cc Redesign block cache pinning API (#7520) 2020-10-11 14:58:24 -07:00
two_level_iterator.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00