mirror of https://github.com/facebook/rocksdb.git
352 lines
14 KiB
C++
352 lines
14 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under both the GPLv2 (found in the
|
|
// COPYING file in the root directory) and Apache 2.0 License
|
|
// (found in the LICENSE.Apache file in the root directory).
|
|
|
|
#include "rocksdb/table_properties.h"
|
|
|
|
#include "db/seqno_to_time_mapping.h"
|
|
#include "port/malloc.h"
|
|
#include "port/port.h"
|
|
#include "rocksdb/env.h"
|
|
#include "rocksdb/unique_id.h"
|
|
#include "table/table_properties_internal.h"
|
|
#include "table/unique_id_impl.h"
|
|
#include "util/random.h"
|
|
#include "util/string_util.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
|
|
const uint32_t TablePropertiesCollectorFactory::Context::kUnknownColumnFamily =
|
|
std::numeric_limits<int32_t>::max();
|
|
|
|
namespace {
|
|
void AppendProperty(std::string& props, const std::string& key,
|
|
const std::string& value, const std::string& prop_delim,
|
|
const std::string& kv_delim) {
|
|
props.append(key);
|
|
props.append(kv_delim);
|
|
props.append(value);
|
|
props.append(prop_delim);
|
|
}
|
|
|
|
template <class TValue>
|
|
void AppendProperty(std::string& props, const std::string& key,
|
|
const TValue& value, const std::string& prop_delim,
|
|
const std::string& kv_delim) {
|
|
AppendProperty(props, key, std::to_string(value), prop_delim, kv_delim);
|
|
}
|
|
} // namespace
|
|
|
|
std::string TableProperties::ToString(const std::string& prop_delim,
|
|
const std::string& kv_delim) const {
|
|
std::string result;
|
|
result.reserve(1024);
|
|
|
|
// Basic Info
|
|
AppendProperty(result, "# data blocks", num_data_blocks, prop_delim,
|
|
kv_delim);
|
|
AppendProperty(result, "# entries", num_entries, prop_delim, kv_delim);
|
|
AppendProperty(result, "# deletions", num_deletions, prop_delim, kv_delim);
|
|
AppendProperty(result, "# merge operands", num_merge_operands, prop_delim,
|
|
kv_delim);
|
|
AppendProperty(result, "# range deletions", num_range_deletions, prop_delim,
|
|
kv_delim);
|
|
|
|
AppendProperty(result, "raw key size", raw_key_size, prop_delim, kv_delim);
|
|
AppendProperty(result, "raw average key size",
|
|
num_entries != 0 ? 1.0 * raw_key_size / num_entries : 0.0,
|
|
prop_delim, kv_delim);
|
|
AppendProperty(result, "raw value size", raw_value_size, prop_delim,
|
|
kv_delim);
|
|
AppendProperty(result, "raw average value size",
|
|
num_entries != 0 ? 1.0 * raw_value_size / num_entries : 0.0,
|
|
prop_delim, kv_delim);
|
|
|
|
AppendProperty(result, "data block size", data_size, prop_delim, kv_delim);
|
|
char index_block_size_str[80];
|
|
snprintf(index_block_size_str, sizeof(index_block_size_str),
|
|
"index block size (user-key? %d, delta-value? %d)",
|
|
static_cast<int>(index_key_is_user_key),
|
|
static_cast<int>(index_value_is_delta_encoded));
|
|
AppendProperty(result, index_block_size_str, index_size, prop_delim,
|
|
kv_delim);
|
|
if (index_partitions != 0) {
|
|
AppendProperty(result, "# index partitions", index_partitions, prop_delim,
|
|
kv_delim);
|
|
AppendProperty(result, "top-level index size", top_level_index_size,
|
|
prop_delim, kv_delim);
|
|
}
|
|
AppendProperty(result, "filter block size", filter_size, prop_delim,
|
|
kv_delim);
|
|
AppendProperty(result, "# entries for filter", num_filter_entries, prop_delim,
|
|
kv_delim);
|
|
AppendProperty(result, "(estimated) table size",
|
|
data_size + index_size + filter_size, prop_delim, kv_delim);
|
|
|
|
AppendProperty(
|
|
result, "filter policy name",
|
|
filter_policy_name.empty() ? std::string("N/A") : filter_policy_name,
|
|
prop_delim, kv_delim);
|
|
|
|
AppendProperty(result, "prefix extractor name",
|
|
prefix_extractor_name.empty() ? std::string("N/A")
|
|
: prefix_extractor_name,
|
|
prop_delim, kv_delim);
|
|
|
|
AppendProperty(result, "column family ID",
|
|
column_family_id ==
|
|
ROCKSDB_NAMESPACE::TablePropertiesCollectorFactory::
|
|
Context::kUnknownColumnFamily
|
|
? std::string("N/A")
|
|
: std::to_string(column_family_id),
|
|
prop_delim, kv_delim);
|
|
AppendProperty(
|
|
result, "column family name",
|
|
column_family_name.empty() ? std::string("N/A") : column_family_name,
|
|
prop_delim, kv_delim);
|
|
|
|
AppendProperty(result, "comparator name",
|
|
comparator_name.empty() ? std::string("N/A") : comparator_name,
|
|
prop_delim, kv_delim);
|
|
|
|
AppendProperty(
|
|
result, "merge operator name",
|
|
merge_operator_name.empty() ? std::string("N/A") : merge_operator_name,
|
|
prop_delim, kv_delim);
|
|
|
|
AppendProperty(result, "property collectors names",
|
|
property_collectors_names.empty() ? std::string("N/A")
|
|
: property_collectors_names,
|
|
prop_delim, kv_delim);
|
|
|
|
AppendProperty(
|
|
result, "SST file compression algo",
|
|
compression_name.empty() ? std::string("N/A") : compression_name,
|
|
prop_delim, kv_delim);
|
|
|
|
AppendProperty(
|
|
result, "SST file compression options",
|
|
compression_options.empty() ? std::string("N/A") : compression_options,
|
|
prop_delim, kv_delim);
|
|
|
|
AppendProperty(result, "creation time", creation_time, prop_delim, kv_delim);
|
|
|
|
AppendProperty(result, "time stamp of earliest key", oldest_key_time,
|
|
prop_delim, kv_delim);
|
|
|
|
AppendProperty(result, "file creation time", file_creation_time, prop_delim,
|
|
kv_delim);
|
|
|
|
AppendProperty(result, "slow compression estimated data size",
|
|
slow_compression_estimated_data_size, prop_delim, kv_delim);
|
|
AppendProperty(result, "fast compression estimated data size",
|
|
fast_compression_estimated_data_size, prop_delim, kv_delim);
|
|
|
|
// DB identity and DB session ID
|
|
AppendProperty(result, "DB identity", db_id, prop_delim, kv_delim);
|
|
AppendProperty(result, "DB session identity", db_session_id, prop_delim,
|
|
kv_delim);
|
|
AppendProperty(result, "DB host id", db_host_id, prop_delim, kv_delim);
|
|
AppendProperty(result, "original file number", orig_file_number, prop_delim,
|
|
kv_delim);
|
|
|
|
// Unique ID, when available
|
|
std::string id;
|
|
Status s = GetUniqueIdFromTableProperties(*this, &id);
|
|
AppendProperty(result, "unique ID",
|
|
s.ok() ? UniqueIdToHumanString(id) : "N/A", prop_delim,
|
|
kv_delim);
|
|
|
|
SeqnoToTimeMapping seq_time_mapping;
|
|
s = seq_time_mapping.Add(seqno_to_time_mapping);
|
|
AppendProperty(result, "Sequence number to time mapping",
|
|
s.ok() ? seq_time_mapping.ToHumanString() : "N/A", prop_delim,
|
|
kv_delim);
|
|
|
|
return result;
|
|
}
|
|
|
|
void TableProperties::Add(const TableProperties& tp) {
|
|
data_size += tp.data_size;
|
|
index_size += tp.index_size;
|
|
index_partitions += tp.index_partitions;
|
|
top_level_index_size += tp.top_level_index_size;
|
|
index_key_is_user_key += tp.index_key_is_user_key;
|
|
index_value_is_delta_encoded += tp.index_value_is_delta_encoded;
|
|
filter_size += tp.filter_size;
|
|
raw_key_size += tp.raw_key_size;
|
|
raw_value_size += tp.raw_value_size;
|
|
num_data_blocks += tp.num_data_blocks;
|
|
num_entries += tp.num_entries;
|
|
num_filter_entries += tp.num_filter_entries;
|
|
num_deletions += tp.num_deletions;
|
|
num_merge_operands += tp.num_merge_operands;
|
|
num_range_deletions += tp.num_range_deletions;
|
|
slow_compression_estimated_data_size +=
|
|
tp.slow_compression_estimated_data_size;
|
|
fast_compression_estimated_data_size +=
|
|
tp.fast_compression_estimated_data_size;
|
|
}
|
|
|
|
std::map<std::string, uint64_t>
|
|
TableProperties::GetAggregatablePropertiesAsMap() const {
|
|
std::map<std::string, uint64_t> rv;
|
|
rv["data_size"] = data_size;
|
|
rv["index_size"] = index_size;
|
|
rv["index_partitions"] = index_partitions;
|
|
rv["top_level_index_size"] = top_level_index_size;
|
|
rv["filter_size"] = filter_size;
|
|
rv["raw_key_size"] = raw_key_size;
|
|
rv["raw_value_size"] = raw_value_size;
|
|
rv["num_data_blocks"] = num_data_blocks;
|
|
rv["num_entries"] = num_entries;
|
|
rv["num_filter_entries"] = num_filter_entries;
|
|
rv["num_deletions"] = num_deletions;
|
|
rv["num_merge_operands"] = num_merge_operands;
|
|
rv["num_range_deletions"] = num_range_deletions;
|
|
rv["slow_compression_estimated_data_size"] =
|
|
slow_compression_estimated_data_size;
|
|
rv["fast_compression_estimated_data_size"] =
|
|
fast_compression_estimated_data_size;
|
|
return rv;
|
|
}
|
|
|
|
// WARNING: manual update to this function is needed
|
|
// whenever a new string property is added to TableProperties
|
|
// to reduce approximation error.
|
|
//
|
|
// TODO: eliminate the need of manually updating this function
|
|
// for new string properties
|
|
std::size_t TableProperties::ApproximateMemoryUsage() const {
|
|
std::size_t usage = 0;
|
|
#ifdef ROCKSDB_MALLOC_USABLE_SIZE
|
|
usage += malloc_usable_size((void*)this);
|
|
#else
|
|
usage += sizeof(*this);
|
|
#endif // ROCKSDB_MALLOC_USABLE_SIZE
|
|
|
|
std::size_t string_props_mem_usage =
|
|
db_id.size() + db_session_id.size() + db_host_id.size() +
|
|
column_family_name.size() + filter_policy_name.size() +
|
|
comparator_name.size() + merge_operator_name.size() +
|
|
prefix_extractor_name.size() + property_collectors_names.size() +
|
|
compression_name.size() + compression_options.size();
|
|
usage += string_props_mem_usage;
|
|
|
|
for (auto iter = user_collected_properties.begin();
|
|
iter != user_collected_properties.end(); ++iter) {
|
|
usage += (iter->first.size() + iter->second.size());
|
|
}
|
|
|
|
return usage;
|
|
}
|
|
|
|
const std::string TablePropertiesNames::kDbId = "rocksdb.creating.db.identity";
|
|
const std::string TablePropertiesNames::kDbSessionId =
|
|
"rocksdb.creating.session.identity";
|
|
const std::string TablePropertiesNames::kDbHostId =
|
|
"rocksdb.creating.host.identity";
|
|
const std::string TablePropertiesNames::kOriginalFileNumber =
|
|
"rocksdb.original.file.number";
|
|
const std::string TablePropertiesNames::kDataSize = "rocksdb.data.size";
|
|
const std::string TablePropertiesNames::kIndexSize = "rocksdb.index.size";
|
|
const std::string TablePropertiesNames::kIndexPartitions =
|
|
"rocksdb.index.partitions";
|
|
const std::string TablePropertiesNames::kTopLevelIndexSize =
|
|
"rocksdb.top-level.index.size";
|
|
const std::string TablePropertiesNames::kIndexKeyIsUserKey =
|
|
"rocksdb.index.key.is.user.key";
|
|
const std::string TablePropertiesNames::kIndexValueIsDeltaEncoded =
|
|
"rocksdb.index.value.is.delta.encoded";
|
|
const std::string TablePropertiesNames::kFilterSize = "rocksdb.filter.size";
|
|
const std::string TablePropertiesNames::kRawKeySize = "rocksdb.raw.key.size";
|
|
const std::string TablePropertiesNames::kRawValueSize =
|
|
"rocksdb.raw.value.size";
|
|
const std::string TablePropertiesNames::kNumDataBlocks =
|
|
"rocksdb.num.data.blocks";
|
|
const std::string TablePropertiesNames::kNumEntries = "rocksdb.num.entries";
|
|
const std::string TablePropertiesNames::kNumFilterEntries =
|
|
"rocksdb.num.filter_entries";
|
|
const std::string TablePropertiesNames::kDeletedKeys = "rocksdb.deleted.keys";
|
|
const std::string TablePropertiesNames::kMergeOperands =
|
|
"rocksdb.merge.operands";
|
|
const std::string TablePropertiesNames::kNumRangeDeletions =
|
|
"rocksdb.num.range-deletions";
|
|
const std::string TablePropertiesNames::kFilterPolicy = "rocksdb.filter.policy";
|
|
const std::string TablePropertiesNames::kFormatVersion =
|
|
"rocksdb.format.version";
|
|
const std::string TablePropertiesNames::kFixedKeyLen =
|
|
"rocksdb.fixed.key.length";
|
|
const std::string TablePropertiesNames::kColumnFamilyId =
|
|
"rocksdb.column.family.id";
|
|
const std::string TablePropertiesNames::kColumnFamilyName =
|
|
"rocksdb.column.family.name";
|
|
const std::string TablePropertiesNames::kComparator = "rocksdb.comparator";
|
|
const std::string TablePropertiesNames::kMergeOperator =
|
|
"rocksdb.merge.operator";
|
|
const std::string TablePropertiesNames::kPrefixExtractorName =
|
|
"rocksdb.prefix.extractor.name";
|
|
const std::string TablePropertiesNames::kPropertyCollectors =
|
|
"rocksdb.property.collectors";
|
|
const std::string TablePropertiesNames::kCompression = "rocksdb.compression";
|
|
const std::string TablePropertiesNames::kCompressionOptions =
|
|
"rocksdb.compression_options";
|
|
const std::string TablePropertiesNames::kCreationTime = "rocksdb.creation.time";
|
|
const std::string TablePropertiesNames::kOldestKeyTime =
|
|
"rocksdb.oldest.key.time";
|
|
const std::string TablePropertiesNames::kFileCreationTime =
|
|
"rocksdb.file.creation.time";
|
|
const std::string TablePropertiesNames::kSlowCompressionEstimatedDataSize =
|
|
"rocksdb.sample_for_compression.slow.data.size";
|
|
const std::string TablePropertiesNames::kFastCompressionEstimatedDataSize =
|
|
"rocksdb.sample_for_compression.fast.data.size";
|
|
const std::string TablePropertiesNames::kSequenceNumberTimeMapping =
|
|
"rocksdb.seqno.time.map";
|
|
const std::string TablePropertiesNames::kTailStartOffset =
|
|
"rocksdb.tail.start.offset";
|
|
|
|
#ifndef NDEBUG
|
|
// WARNING: TEST_SetRandomTableProperties assumes the following layout of
|
|
// TableProperties
|
|
//
|
|
// struct TableProperties {
|
|
// int64_t orig_file_number = 0;
|
|
// ...
|
|
// ... int64_t properties only
|
|
// ...
|
|
// std::string db_id;
|
|
// ...
|
|
// ... std::string properties only
|
|
// ...
|
|
// std::string compression_options;
|
|
// UserCollectedProperties user_collected_properties;
|
|
// ...
|
|
// ... Other extra properties: non-int64_t/non-std::string properties only
|
|
// ...
|
|
// }
|
|
void TEST_SetRandomTableProperties(TableProperties* props) {
|
|
Random* r = Random::GetTLSInstance();
|
|
uint64_t* pu = &props->orig_file_number;
|
|
assert(static_cast<void*>(pu) == static_cast<void*>(props));
|
|
std::string* ps = &props->db_id;
|
|
const uint64_t* const pu_end = reinterpret_cast<const uint64_t*>(ps);
|
|
// Use the last string property's address instead of
|
|
// the first extra property (e.g `user_collected_properties`)'s address
|
|
// in the for-loop to avoid advancing pointer to pointing to
|
|
// potential non-zero padding bytes between these two addresses due to
|
|
// user_collected_properties's alignment requirement
|
|
const std::string* const ps_end_inclusive = &props->compression_options;
|
|
|
|
for (; pu < pu_end; ++pu) {
|
|
*pu = r->Next64();
|
|
}
|
|
assert(static_cast<void*>(pu) == static_cast<void*>(ps));
|
|
for (; ps <= ps_end_inclusive; ++ps) {
|
|
*ps = r->RandomBinaryString(13);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|