Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 142 insertions, 0 deletions

diff --git a/src/rocksdb/examples/rocksdb_option_file_example.ini b/src/rocksdb/examples/rocksdb_option_file_example.ini
new file mode 100644
index 000000000..351890e51
--- /dev/null
+++ b/src/rocksdb/examples/rocksdb_option_file_example.ini
@@ -0,0 +1,142 @@
+# This is a RocksDB option file.
+#
+# A typical RocksDB options file has four sections, which are
+# Version section, DBOptions section, at least one CFOptions
+# section, and one TableOptions section for each column family.
+# The RocksDB options file in general follows the basic INI
+# file format with the following extensions / modifications:
+#
+#  * Escaped characters
+#    We escaped the following characters:
+#     - \n -- line feed - new line
+#     - \r -- carriage return
+#     - \\ -- backslash \
+#     - \: -- colon symbol :
+#     - \# -- hash tag #
+#  * Comments
+#    We support # style comments.  Comments can appear at the ending
+#    part of a line.
+#  * Statements
+#    A statement is of the form option_name = value.
+#    Each statement contains a '=', where extra white-spaces
+#    are supported. However, we don't support multi-lined statement.
+#    Furthermore, each line can only contain at most one statement.
+#  * Sections
+#    Sections are of the form [SecitonTitle "SectionArgument"],
+#    where section argument is optional.
+#  * List
+#    We use colon-separated string to represent a list.
+#    For instance, n1:n2:n3:n4 is a list containing four values.
+#
+# Below is an example of a RocksDB options file:
+[Version]
+  rocksdb_version=4.3.0
+  options_file_version=1.1
+
+[DBOptions]
+  stats_dump_period_sec=600
+  max_manifest_file_size=18446744073709551615
+  bytes_per_sync=8388608
+  delayed_write_rate=2097152
+  WAL_ttl_seconds=0
+  WAL_size_limit_MB=0
+  max_subcompactions=1
+  wal_dir=
+  wal_bytes_per_sync=0
+  db_write_buffer_size=0
+  keep_log_file_num=1000
+  table_cache_numshardbits=4
+  max_file_opening_threads=1
+  writable_file_max_buffer_size=1048576
+  random_access_max_buffer_size=1048576
+  use_fsync=false
+  max_total_wal_size=0
+  max_open_files=-1
+  skip_stats_update_on_db_open=false
+  max_background_compactions=16
+  manifest_preallocation_size=4194304
+  max_background_flushes=7
+  is_fd_close_on_exec=true
+  max_log_file_size=0
+  advise_random_on_open=true
+  create_missing_column_families=false
+  paranoid_checks=true
+  delete_obsolete_files_period_micros=21600000000
+  log_file_time_to_roll=0
+  compaction_readahead_size=0
+  create_if_missing=false
+  use_adaptive_mutex=false
+  enable_thread_tracking=false
+  allow_fallocate=true
+  error_if_exists=false
+  recycle_log_file_num=0
+  db_log_dir=
+  skip_log_error_on_recovery=false
+  new_table_reader_for_compaction_inputs=true
+  allow_mmap_reads=false
+  allow_mmap_writes=false
+  use_direct_reads=false
+  use_direct_writes=false
+
+
+[CFOptions "default"]
+  compaction_style=kCompactionStyleLevel
+  compaction_filter=nullptr
+  num_levels=6
+  table_factory=BlockBasedTable
+  comparator=leveldb.BytewiseComparator
+  max_sequential_skip_in_iterations=8
+  max_bytes_for_level_base=1073741824
+  memtable_prefix_bloom_probes=6
+  memtable_prefix_bloom_bits=0
+  memtable_prefix_bloom_huge_page_tlb_size=0
+  max_successive_merges=0
+  arena_block_size=16777216
+  min_write_buffer_number_to_merge=1
+  target_file_size_multiplier=1
+  source_compaction_factor=1
+  max_bytes_for_level_multiplier=8
+  max_bytes_for_level_multiplier_additional=2:3:5
+  compaction_filter_factory=nullptr
+  max_write_buffer_number=8
+  level0_stop_writes_trigger=20
+  compression=kSnappyCompression
+  level0_file_num_compaction_trigger=4
+  purge_redundant_kvs_while_flush=true
+  max_write_buffer_size_to_maintain=0
+  memtable_factory=SkipListFactory
+  max_grandparent_overlap_factor=8
+  expanded_compaction_factor=25
+  hard_pending_compaction_bytes_limit=137438953472
+  inplace_update_num_locks=10000
+  level_compaction_dynamic_level_bytes=true
+  level0_slowdown_writes_trigger=12
+  filter_deletes=false
+  verify_checksums_in_compaction=true
+  min_partial_merge_operands=2
+  paranoid_file_checks=false
+  target_file_size_base=134217728
+  optimize_filters_for_hits=false
+  merge_operator=PutOperator
+  compression_per_level=kNoCompression:kNoCompression:kNoCompression:kSnappyCompression:kSnappyCompression:kSnappyCompression
+  compaction_measure_io_stats=false
+  prefix_extractor=nullptr
+  bloom_locality=0
+  write_buffer_size=134217728
+  disable_auto_compactions=false
+  inplace_update_support=false
+
+[TableOptions/BlockBasedTable "default"]
+  format_version=2
+  whole_key_filtering=true
+  no_block_cache=false
+  checksum=kCRC32c
+  filter_policy=rocksdb.BuiltinBloomFilter
+  block_size_deviation=10
+  block_size=8192
+  block_restart_interval=16
+  cache_index_and_filter_blocks=false
+  pin_l0_filter_and_index_blocks_in_cache=false
+  pin_top_level_index_and_filter=false
+  index_type=kBinarySearch
+  flush_block_policy_factory=FlushBlockBySizePolicyFactory