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ha_rocksdb.cc
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ha_rocksdb.cc
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/*
Copyright (c) 2012, Monty Program Ab
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifdef USE_PRAGMA_IMPLEMENTATION
#pragma implementation // gcc: Class implementation
#endif
#define MYSQL_SERVER 1
/* For use of 'PRIu64': */
#define __STDC_FORMAT_MACROS
#include <my_config.h>
#include <inttypes.h>
/* The C++ file's header */
#include "./ha_rocksdb.h"
/* C++ standard header files */
#include <algorithm>
#include <queue>
#include <set>
#include <string>
#include <vector>
/* MySQL includes */
#include "./debug_sync.h"
#include "./my_bit.h"
#include "./my_stacktrace.h"
#include "./sql_audit.h"
#include "./sql_table.h"
#include "./sql_hset.h"
#include <mysql/psi/mysql_table.h>
#ifdef MARIAROCKS_NOT_YET
#include <mysql/thread_pool_priv.h>
#endif
#include <mysys_err.h>
/* RocksDB includes */
#include "rocksdb/compaction_filter.h"
#include "rocksdb/persistent_cache.h"
#include "rocksdb/rate_limiter.h"
#include "rocksdb/slice_transform.h"
#include "rocksdb/utilities/checkpoint.h"
#include "rocksdb/utilities/convenience.h"
#include "rocksdb/utilities/memory_util.h"
/* MyRocks includes */
#include "./event_listener.h"
#include "./ha_rocksdb_proto.h"
#include "./logger.h"
#include "./rdb_cf_manager.h"
#include "./rdb_cf_options.h"
#include "./rdb_datadic.h"
#include "./rdb_i_s.h"
#include "./rdb_index_merge.h"
#include "./rdb_mutex_wrapper.h"
#include "./rdb_psi.h"
#include "./rdb_threads.h"
#include "./rdb_mariadb_server_port.h"
// Internal MySQL APIs not exposed in any header.
extern "C" {
/**
Mark transaction to rollback and mark error as fatal to a sub-statement.
@param thd Thread handle
@param all TRUE <=> rollback main transaction.
*/
void thd_mark_transaction_to_rollback(MYSQL_THD thd, bool all);
/**
* Get the user thread's binary logging format
* @param thd user thread
* @return Value to be used as index into the binlog_format_names array
*/
int thd_binlog_format(const MYSQL_THD thd);
/**
* Check if binary logging is filtered for thread's current db.
* @param thd Thread handle
* @retval 1 the query is not filtered, 0 otherwise.
*/
bool thd_binlog_filter_ok(const MYSQL_THD thd);
}
namespace myrocks {
static st_global_stats global_stats;
static st_export_stats export_stats;
/**
Updates row counters based on the table type and operation type.
*/
void ha_rocksdb::update_row_stats(const operation_type &type) {
DBUG_ASSERT(type < ROWS_MAX);
// Find if we are modifying system databases.
if (table->s && m_tbl_def->m_is_mysql_system_table)
global_stats.system_rows[type].inc();
else
global_stats.rows[type].inc();
}
void dbug_dump_database(rocksdb::DB *db);
static handler *rocksdb_create_handler(my_core::handlerton *hton,
my_core::TABLE_SHARE *table_arg,
my_core::MEM_ROOT *mem_root);
bool can_use_bloom_filter(THD *thd, const Rdb_key_def &kd,
const rocksdb::Slice &eq_cond,
const bool use_all_keys, bool is_ascending);
///////////////////////////////////////////////////////////
// Parameters and settings
///////////////////////////////////////////////////////////
static char *rocksdb_default_cf_options;
static char *rocksdb_override_cf_options;
Rdb_cf_options rocksdb_cf_options_map;
///////////////////////////////////////////////////////////
// Globals
///////////////////////////////////////////////////////////
handlerton *rocksdb_hton;
rocksdb::TransactionDB *rdb = nullptr;
static std::shared_ptr<rocksdb::Statistics> rocksdb_stats;
static std::unique_ptr<rocksdb::Env> flashcache_aware_env;
static std::shared_ptr<Rdb_tbl_prop_coll_factory> properties_collector_factory;
Rdb_dict_manager dict_manager;
Rdb_cf_manager cf_manager;
Rdb_ddl_manager ddl_manager;
const char *m_mysql_gtid;
Rdb_binlog_manager binlog_manager;
/**
MyRocks background thread control
N.B. This is besides RocksDB's own background threads
(@see rocksdb::CancelAllBackgroundWork())
*/
static Rdb_background_thread rdb_bg_thread;
// List of table names (using regex) that are exceptions to the strict
// collation check requirement.
Regex_list_handler *rdb_collation_exceptions;
static const char *const ERRSTR_ROLLBACK_ONLY =
"This transaction was rolled back and cannot be "
"committed. Only supported operation is to roll it back, "
"so all pending changes will be discarded. "
"Please restart another transaction.";
static void rocksdb_flush_all_memtables() {
const Rdb_cf_manager &cf_manager = rdb_get_cf_manager();
for (const auto &cf_handle : cf_manager.get_all_cf()) {
rdb->Flush(rocksdb::FlushOptions(), cf_handle);
}
}
static void rocksdb_compact_column_family_stub(
THD *const thd, struct st_mysql_sys_var *const var, void *const var_ptr,
const void *const save) {}
static int rocksdb_compact_column_family(THD *const thd,
struct st_mysql_sys_var *const var,
void *const var_ptr,
struct st_mysql_value *const value) {
char buff[STRING_BUFFER_USUAL_SIZE];
int len = sizeof(buff);
DBUG_ASSERT(value != nullptr);
if (const char *const cf = value->val_str(value, buff, &len)) {
bool is_automatic;
auto cfh = cf_manager.get_cf(cf, "", nullptr, &is_automatic);
if (cfh != nullptr && rdb != nullptr) {
sql_print_information("RocksDB: Manual compaction of column family: %s\n",
cf);
rdb->CompactRange(rocksdb::CompactRangeOptions(), cfh, nullptr, nullptr);
}
}
return HA_EXIT_SUCCESS;
}
///////////////////////////////////////////////////////////
// Hash map: table name => open table handler
///////////////////////////////////////////////////////////
namespace // anonymous namespace = not visible outside this source file
{
const ulong TABLE_HASH_SIZE = 32;
typedef Hash_set<Rdb_table_handler> Rdb_table_set;
struct Rdb_open_tables_map {
/* Hash table used to track the handlers of open tables */
Rdb_table_set m_hash;
/* The mutex used to protect the hash table */
mutable mysql_mutex_t m_mutex;
static uchar *get_hash_key(const Rdb_table_handler *const table_handler,
size_t *const length,
my_bool not_used MY_ATTRIBUTE((__unused__)));
Rdb_table_handler *get_table_handler(const char *const table_name);
void release_table_handler(Rdb_table_handler *const table_handler);
Rdb_open_tables_map() : m_hash(get_hash_key, system_charset_info) { }
std::vector<std::string> get_table_names(void) const;
};
} // anonymous namespace
static Rdb_open_tables_map rdb_open_tables;
static std::string rdb_normalize_dir(std::string dir) {
while (dir.size() > 0 && dir.back() == '/') {
dir.resize(dir.size() - 1);
}
return dir;
}
static int rocksdb_create_checkpoint(
THD *const thd MY_ATTRIBUTE((__unused__)),
struct st_mysql_sys_var *const var MY_ATTRIBUTE((__unused__)),
void *const save MY_ATTRIBUTE((__unused__)),
struct st_mysql_value *const value) {
char buf[FN_REFLEN];
int len = sizeof(buf);
const char *const checkpoint_dir_raw = value->val_str(value, buf, &len);
if (checkpoint_dir_raw) {
if (rdb != nullptr) {
std::string checkpoint_dir = rdb_normalize_dir(checkpoint_dir_raw);
// NO_LINT_DEBUG
sql_print_information("RocksDB: creating checkpoint in directory : %s\n",
checkpoint_dir.c_str());
rocksdb::Checkpoint *checkpoint;
auto status = rocksdb::Checkpoint::Create(rdb, &checkpoint);
if (status.ok()) {
status = checkpoint->CreateCheckpoint(checkpoint_dir.c_str());
if (status.ok()) {
sql_print_information(
"RocksDB: created checkpoint in directory : %s\n",
checkpoint_dir.c_str());
} else {
my_printf_error(
ER_UNKNOWN_ERROR,
"RocksDB: Failed to create checkpoint directory. status %d %s",
MYF(0), status.code(), status.ToString().c_str());
}
delete checkpoint;
} else {
const std::string err_text(status.ToString());
my_printf_error(
ER_UNKNOWN_ERROR,
"RocksDB: failed to initialize checkpoint. status %d %s\n", MYF(0),
status.code(), err_text.c_str());
}
return status.code();
}
}
return HA_ERR_INTERNAL_ERROR;
}
/* This method is needed to indicate that the
ROCKSDB_CREATE_CHECKPOINT command is not read-only */
static void rocksdb_create_checkpoint_stub(THD *const thd,
struct st_mysql_sys_var *const var,
void *const var_ptr,
const void *const save) {}
static void rocksdb_force_flush_memtable_now_stub(
THD *const thd, struct st_mysql_sys_var *const var, void *const var_ptr,
const void *const save) {}
static int rocksdb_force_flush_memtable_now(
THD *const thd, struct st_mysql_sys_var *const var, void *const var_ptr,
struct st_mysql_value *const value) {
sql_print_information("RocksDB: Manual memtable flush\n");
rocksdb_flush_all_memtables();
return HA_EXIT_SUCCESS;
}
static void rocksdb_drop_index_wakeup_thread(
my_core::THD *const thd MY_ATTRIBUTE((__unused__)),
struct st_mysql_sys_var *const var MY_ATTRIBUTE((__unused__)),
void *const var_ptr MY_ATTRIBUTE((__unused__)), const void *const save);
static my_bool rocksdb_pause_background_work = 0;
static mysql_mutex_t rdb_sysvars_mutex;
static void rocksdb_set_pause_background_work(
my_core::THD *const thd MY_ATTRIBUTE((__unused__)),
struct st_mysql_sys_var *const var MY_ATTRIBUTE((__unused__)),
void *const var_ptr MY_ATTRIBUTE((__unused__)), const void *const save) {
RDB_MUTEX_LOCK_CHECK(rdb_sysvars_mutex);
const bool pause_requested = *static_cast<const bool *>(save);
if (rocksdb_pause_background_work != pause_requested) {
if (pause_requested) {
rdb->PauseBackgroundWork();
} else {
rdb->ContinueBackgroundWork();
}
rocksdb_pause_background_work = pause_requested;
}
RDB_MUTEX_UNLOCK_CHECK(rdb_sysvars_mutex);
}
static void rocksdb_set_compaction_options(THD *thd,
struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static void rocksdb_set_table_stats_sampling_pct(THD *thd,
struct st_mysql_sys_var *var,
void *var_ptr,
const void *save);
static void rocksdb_set_rate_limiter_bytes_per_sec(THD *thd,
struct st_mysql_sys_var *var,
void *var_ptr,
const void *save);
static void rocksdb_set_delayed_write_rate(THD *thd,
struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static void rdb_set_collation_exception_list(const char *exception_list);
static void rocksdb_set_collation_exception_list(THD *thd,
struct st_mysql_sys_var *var,
void *var_ptr,
const void *save);
static void
rocksdb_set_bulk_load(THD *thd,
struct st_mysql_sys_var *var MY_ATTRIBUTE((__unused__)),
void *var_ptr, const void *save);
static void rocksdb_set_max_background_compactions(
THD *thd, struct st_mysql_sys_var *const var, void *const var_ptr,
const void *const save);
//////////////////////////////////////////////////////////////////////////////
// Options definitions
//////////////////////////////////////////////////////////////////////////////
static long long rocksdb_block_cache_size;
/* Use unsigned long long instead of uint64_t because of MySQL compatibility */
static unsigned long long // NOLINT(runtime/int)
rocksdb_rate_limiter_bytes_per_sec;
static unsigned long long rocksdb_delayed_write_rate;
static unsigned long // NOLINT(runtime/int)
rocksdb_persistent_cache_size_mb;
static ulong rocksdb_info_log_level;
static char *rocksdb_wal_dir;
static char *rocksdb_persistent_cache_path;
static ulong rocksdb_index_type;
static char rocksdb_background_sync;
static uint32_t rocksdb_debug_optimizer_n_rows;
static my_bool rocksdb_force_compute_memtable_stats;
static my_bool rocksdb_debug_optimizer_no_zero_cardinality;
static uint32_t rocksdb_wal_recovery_mode;
static uint32_t rocksdb_access_hint_on_compaction_start;
static char *rocksdb_compact_cf_name;
static char *rocksdb_checkpoint_name;
static my_bool rocksdb_signal_drop_index_thread;
static my_bool rocksdb_strict_collation_check = 1;
static my_bool rocksdb_enable_2pc = 0;
static char *rocksdb_strict_collation_exceptions;
static my_bool rocksdb_collect_sst_properties = 1;
static my_bool rocksdb_force_flush_memtable_now_var = 0;
static uint64_t rocksdb_number_stat_computes = 0;
static uint32_t rocksdb_seconds_between_stat_computes = 3600;
static long long rocksdb_compaction_sequential_deletes = 0l;
static long long rocksdb_compaction_sequential_deletes_window = 0l;
static long long rocksdb_compaction_sequential_deletes_file_size = 0l;
static uint32_t rocksdb_validate_tables = 1;
static char *rocksdb_datadir;
static uint32_t rocksdb_table_stats_sampling_pct;
static my_bool rocksdb_enable_bulk_load_api = 1;
static my_bool rocksdb_print_snapshot_conflict_queries = 0;
char *compression_types_val=
const_cast<char*>(get_rocksdb_supported_compression_types());
std::atomic<uint64_t> rocksdb_snapshot_conflict_errors(0);
std::atomic<uint64_t> rocksdb_wal_group_syncs(0);
static rocksdb::DBOptions rdb_init_rocksdb_db_options(void) {
rocksdb::DBOptions o;
o.create_if_missing = true;
o.listeners.push_back(std::make_shared<Rdb_event_listener>(&ddl_manager));
o.info_log_level = rocksdb::InfoLogLevel::INFO_LEVEL;
o.max_subcompactions = DEFAULT_SUBCOMPACTIONS;
return o;
}
static rocksdb::DBOptions rocksdb_db_options = rdb_init_rocksdb_db_options();
static rocksdb::BlockBasedTableOptions rocksdb_tbl_options;
static std::shared_ptr<rocksdb::RateLimiter> rocksdb_rate_limiter;
/* This enum needs to be kept up to date with rocksdb::InfoLogLevel */
static const char *info_log_level_names[] = {"debug_level", "info_level",
"warn_level", "error_level",
"fatal_level", NullS};
static TYPELIB info_log_level_typelib = {
array_elements(info_log_level_names) - 1, "info_log_level_typelib",
info_log_level_names, nullptr};
static void rocksdb_set_rocksdb_info_log_level(
THD *const thd, struct st_mysql_sys_var *const var, void *const var_ptr,
const void *const save) {
DBUG_ASSERT(save != nullptr);
RDB_MUTEX_LOCK_CHECK(rdb_sysvars_mutex);
rocksdb_info_log_level = *static_cast<const uint64_t *>(save);
rocksdb_db_options.info_log->SetInfoLogLevel(
static_cast<const rocksdb::InfoLogLevel>(rocksdb_info_log_level));
RDB_MUTEX_UNLOCK_CHECK(rdb_sysvars_mutex);
}
static const char *index_type_names[] = {"kBinarySearch", "kHashSearch", NullS};
static TYPELIB index_type_typelib = {array_elements(index_type_names) - 1,
"index_type_typelib", index_type_names,
nullptr};
const ulong RDB_MAX_LOCK_WAIT_SECONDS = 1024 * 1024 * 1024;
const ulong RDB_MAX_ROW_LOCKS = 1024 * 1024 * 1024;
const ulong RDB_DEFAULT_BULK_LOAD_SIZE = 1000;
const ulong RDB_MAX_BULK_LOAD_SIZE = 1024 * 1024 * 1024;
const size_t RDB_DEFAULT_MERGE_BUF_SIZE = 64 * 1024 * 1024;
const size_t RDB_MIN_MERGE_BUF_SIZE = 100;
const size_t RDB_DEFAULT_MERGE_COMBINE_READ_SIZE = 1024 * 1024 * 1024;
const size_t RDB_MIN_MERGE_COMBINE_READ_SIZE = 100;
const int64 RDB_DEFAULT_BLOCK_CACHE_SIZE = 512 * 1024 * 1024;
const int64 RDB_MIN_BLOCK_CACHE_SIZE = 1024;
const int RDB_MAX_CHECKSUMS_PCT = 100;
// TODO: 0 means don't wait at all, and we don't support it yet?
static MYSQL_THDVAR_ULONG(lock_wait_timeout, PLUGIN_VAR_RQCMDARG,
"Number of seconds to wait for lock", nullptr,
nullptr, /*default*/ 1, /*min*/ 1,
/*max*/ RDB_MAX_LOCK_WAIT_SECONDS, 0);
static MYSQL_THDVAR_BOOL(deadlock_detect, PLUGIN_VAR_RQCMDARG,
"Enables deadlock detection", nullptr, nullptr, FALSE);
static MYSQL_THDVAR_BOOL(
trace_sst_api, PLUGIN_VAR_RQCMDARG,
"Generate trace output in the log for each call to the SstFileWriter",
nullptr, nullptr, FALSE);
static MYSQL_THDVAR_BOOL(
bulk_load, PLUGIN_VAR_RQCMDARG,
"Use bulk-load mode for inserts. This disables "
"unique_checks and enables rocksdb_commit_in_the_middle.",
nullptr, rocksdb_set_bulk_load, FALSE);
static MYSQL_SYSVAR_BOOL(enable_bulk_load_api, rocksdb_enable_bulk_load_api,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"Enables using SstFileWriter for bulk loading",
nullptr, nullptr, rocksdb_enable_bulk_load_api);
static MYSQL_THDVAR_STR(tmpdir, PLUGIN_VAR_OPCMDARG | PLUGIN_VAR_MEMALLOC,
"Directory for temporary files during DDL operations.",
nullptr, nullptr, "");
static MYSQL_THDVAR_STR(
skip_unique_check_tables, PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_MEMALLOC,
"Skip unique constraint checking for the specified tables", nullptr,
nullptr, ".*");
static MYSQL_THDVAR_BOOL(
commit_in_the_middle, PLUGIN_VAR_RQCMDARG,
"Commit rows implicitly every rocksdb_bulk_load_size, on bulk load/insert, "
"update and delete",
nullptr, nullptr, FALSE);
static MYSQL_THDVAR_BOOL(
blind_delete_primary_key, PLUGIN_VAR_RQCMDARG,
"Deleting rows by primary key lookup, without reading rows (Blind Deletes)."
" Blind delete is disabled if the table has secondary key",
nullptr, nullptr, FALSE);
static MYSQL_THDVAR_STR(
read_free_rpl_tables, PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_MEMALLOC,
"List of tables that will use read-free replication on the slave "
"(i.e. not lookup a row during replication)",
nullptr, nullptr, "");
static MYSQL_THDVAR_BOOL(skip_bloom_filter_on_read, PLUGIN_VAR_RQCMDARG,
"Skip using bloom filter for reads", nullptr, nullptr,
FALSE);
static MYSQL_THDVAR_ULONG(max_row_locks, PLUGIN_VAR_RQCMDARG,
"Maximum number of locks a transaction can have",
nullptr, nullptr,
/*default*/ RDB_MAX_ROW_LOCKS,
/*min*/ 1,
/*max*/ RDB_MAX_ROW_LOCKS, 0);
static MYSQL_THDVAR_BOOL(
lock_scanned_rows, PLUGIN_VAR_RQCMDARG,
"Take and hold locks on rows that are scanned but not updated", nullptr,
nullptr, FALSE);
static MYSQL_THDVAR_ULONG(bulk_load_size, PLUGIN_VAR_RQCMDARG,
"Max #records in a batch for bulk-load mode", nullptr,
nullptr,
/*default*/ RDB_DEFAULT_BULK_LOAD_SIZE,
/*min*/ 1,
/*max*/ RDB_MAX_BULK_LOAD_SIZE, 0);
static MYSQL_THDVAR_ULONGLONG(
merge_buf_size, PLUGIN_VAR_RQCMDARG,
"Size to allocate for merge sort buffers written out to disk "
"during inplace index creation.",
nullptr, nullptr,
/* default (64MB) */ RDB_DEFAULT_MERGE_BUF_SIZE,
/* min (100B) */ RDB_MIN_MERGE_BUF_SIZE,
/* max */ SIZE_T_MAX, 1);
static MYSQL_THDVAR_ULONGLONG(
merge_combine_read_size, PLUGIN_VAR_RQCMDARG,
"Size that we have to work with during combine (reading from disk) phase "
"of "
"external sort during fast index creation.",
nullptr, nullptr,
/* default (1GB) */ RDB_DEFAULT_MERGE_COMBINE_READ_SIZE,
/* min (100B) */ RDB_MIN_MERGE_COMBINE_READ_SIZE,
/* max */ SIZE_T_MAX, 1);
static MYSQL_SYSVAR_BOOL(
create_if_missing,
*reinterpret_cast<my_bool *>(&rocksdb_db_options.create_if_missing),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::create_if_missing for RocksDB", nullptr, nullptr,
rocksdb_db_options.create_if_missing);
static MYSQL_SYSVAR_BOOL(
create_missing_column_families,
*reinterpret_cast<my_bool *>(
&rocksdb_db_options.create_missing_column_families),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::create_missing_column_families for RocksDB", nullptr, nullptr,
rocksdb_db_options.create_missing_column_families);
static MYSQL_SYSVAR_BOOL(
error_if_exists,
*reinterpret_cast<my_bool *>(&rocksdb_db_options.error_if_exists),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::error_if_exists for RocksDB", nullptr, nullptr,
rocksdb_db_options.error_if_exists);
static MYSQL_SYSVAR_BOOL(
paranoid_checks,
*reinterpret_cast<my_bool *>(&rocksdb_db_options.paranoid_checks),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::paranoid_checks for RocksDB", nullptr, nullptr,
rocksdb_db_options.paranoid_checks);
static MYSQL_SYSVAR_ULONGLONG(
rate_limiter_bytes_per_sec, rocksdb_rate_limiter_bytes_per_sec,
PLUGIN_VAR_RQCMDARG, "DBOptions::rate_limiter bytes_per_sec for RocksDB",
nullptr, rocksdb_set_rate_limiter_bytes_per_sec, /* default */ 0L,
/* min */ 0L, /* max */ MAX_RATE_LIMITER_BYTES_PER_SEC, 0);
static MYSQL_SYSVAR_ULONGLONG(delayed_write_rate, rocksdb_delayed_write_rate,
PLUGIN_VAR_RQCMDARG,
"DBOptions::delayed_write_rate", nullptr,
rocksdb_set_delayed_write_rate,
rocksdb_db_options.delayed_write_rate, 0,
UINT64_MAX, 0);
static MYSQL_SYSVAR_ENUM(
info_log_level, rocksdb_info_log_level, PLUGIN_VAR_RQCMDARG,
"Filter level for info logs to be written mysqld error log. "
"Valid values include 'debug_level', 'info_level', 'warn_level'"
"'error_level' and 'fatal_level'.",
nullptr, rocksdb_set_rocksdb_info_log_level,
rocksdb::InfoLogLevel::ERROR_LEVEL, &info_log_level_typelib);
static MYSQL_THDVAR_INT(
perf_context_level, PLUGIN_VAR_RQCMDARG,
"Perf Context Level for rocksdb internal timer stat collection", nullptr,
nullptr,
/* default */ rocksdb::PerfLevel::kUninitialized,
/* min */ rocksdb::PerfLevel::kUninitialized,
/* max */ rocksdb::PerfLevel::kOutOfBounds - 1, 0);
static MYSQL_SYSVAR_UINT(
wal_recovery_mode, rocksdb_wal_recovery_mode, PLUGIN_VAR_RQCMDARG,
"DBOptions::wal_recovery_mode for RocksDB. Default is kAbsoluteConsistency",
nullptr, nullptr,
/* default */ (uint)rocksdb::WALRecoveryMode::kAbsoluteConsistency,
/* min */ (uint)rocksdb::WALRecoveryMode::kTolerateCorruptedTailRecords,
/* max */ (uint)rocksdb::WALRecoveryMode::kSkipAnyCorruptedRecords, 0);
static MYSQL_SYSVAR_SIZE_T(compaction_readahead_size,
rocksdb_db_options.compaction_readahead_size,
PLUGIN_VAR_RQCMDARG,
"DBOptions::compaction_readahead_size for RocksDB",
nullptr, nullptr,
rocksdb_db_options.compaction_readahead_size,
/* min */ 0L, /* max */ SIZE_T_MAX, 0);
static MYSQL_SYSVAR_BOOL(
new_table_reader_for_compaction_inputs,
*reinterpret_cast<my_bool *>(
&rocksdb_db_options.new_table_reader_for_compaction_inputs),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::new_table_reader_for_compaction_inputs for RocksDB", nullptr,
nullptr, rocksdb_db_options.new_table_reader_for_compaction_inputs);
static MYSQL_SYSVAR_UINT(
access_hint_on_compaction_start, rocksdb_access_hint_on_compaction_start,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::access_hint_on_compaction_start for RocksDB", nullptr, nullptr,
/* default */ (uint)rocksdb::Options::AccessHint::NORMAL,
/* min */ (uint)rocksdb::Options::AccessHint::NONE,
/* max */ (uint)rocksdb::Options::AccessHint::WILLNEED, 0);
static MYSQL_SYSVAR_BOOL(
allow_concurrent_memtable_write,
*reinterpret_cast<my_bool *>(
&rocksdb_db_options.allow_concurrent_memtable_write),
PLUGIN_VAR_RQCMDARG,
"DBOptions::allow_concurrent_memtable_write for RocksDB", nullptr, nullptr,
false);
static MYSQL_SYSVAR_BOOL(
enable_write_thread_adaptive_yield,
*reinterpret_cast<my_bool *>(
&rocksdb_db_options.enable_write_thread_adaptive_yield),
PLUGIN_VAR_RQCMDARG,
"DBOptions::enable_write_thread_adaptive_yield for RocksDB", nullptr,
nullptr, false);
static MYSQL_SYSVAR_INT(max_open_files, rocksdb_db_options.max_open_files,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::max_open_files for RocksDB", nullptr,
nullptr, rocksdb_db_options.max_open_files,
/* min */ -1, /* max */ INT_MAX, 0);
static MYSQL_SYSVAR_UINT64_T(max_total_wal_size,
rocksdb_db_options.max_total_wal_size,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::max_total_wal_size for RocksDB", nullptr,
nullptr, rocksdb_db_options.max_total_wal_size,
/* min */ 0, /* max */ LONGLONG_MAX, 0);
static MYSQL_SYSVAR_BOOL(
use_fsync, *reinterpret_cast<my_bool *>(&rocksdb_db_options.use_fsync),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::use_fsync for RocksDB", nullptr, nullptr,
rocksdb_db_options.use_fsync);
static MYSQL_SYSVAR_STR(wal_dir, rocksdb_wal_dir,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::wal_dir for RocksDB", nullptr, nullptr,
rocksdb_db_options.wal_dir.c_str());
static MYSQL_SYSVAR_STR(
persistent_cache_path, rocksdb_persistent_cache_path,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"Path for BlockBasedTableOptions::persistent_cache for RocksDB", nullptr,
nullptr, "");
static MYSQL_SYSVAR_ULONG(
persistent_cache_size_mb, rocksdb_persistent_cache_size_mb,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"Size of cache in MB for BlockBasedTableOptions::persistent_cache "
"for RocksDB", nullptr, nullptr, rocksdb_persistent_cache_size_mb,
/* min */ 0L, /* max */ ULONG_MAX, 0);
static MYSQL_SYSVAR_UINT64_T(
delete_obsolete_files_period_micros,
rocksdb_db_options.delete_obsolete_files_period_micros,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::delete_obsolete_files_period_micros for RocksDB", nullptr,
nullptr, rocksdb_db_options.delete_obsolete_files_period_micros,
/* min */ 0, /* max */ LONGLONG_MAX, 0);
static MYSQL_SYSVAR_INT(base_background_compactions,
rocksdb_db_options.base_background_compactions,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::base_background_compactions for RocksDB",
nullptr, nullptr,
rocksdb_db_options.base_background_compactions,
/* min */ -1, /* max */ MAX_BACKGROUND_COMPACTIONS, 0);
static MYSQL_SYSVAR_INT(max_background_compactions,
rocksdb_db_options.max_background_compactions,
PLUGIN_VAR_RQCMDARG,
"DBOptions::max_background_compactions for RocksDB",
nullptr, rocksdb_set_max_background_compactions,
rocksdb_db_options.max_background_compactions,
/* min */ 1, /* max */ MAX_BACKGROUND_COMPACTIONS, 0);
static MYSQL_SYSVAR_INT(max_background_flushes,
rocksdb_db_options.max_background_flushes,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::max_background_flushes for RocksDB",
nullptr, nullptr,
rocksdb_db_options.max_background_flushes,
/* min */ 1, /* max */ MAX_BACKGROUND_FLUSHES, 0);
static MYSQL_SYSVAR_UINT(max_subcompactions,
rocksdb_db_options.max_subcompactions,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::max_subcompactions for RocksDB", nullptr,
nullptr, rocksdb_db_options.max_subcompactions,
/* min */ 1, /* max */ MAX_SUBCOMPACTIONS, 0);
static MYSQL_SYSVAR_SIZE_T(max_log_file_size,
rocksdb_db_options.max_log_file_size,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::max_log_file_size for RocksDB", nullptr,
nullptr, rocksdb_db_options.max_log_file_size,
/* min */ 0L, /* max */ SIZE_T_MAX, 0);
static MYSQL_SYSVAR_SIZE_T(log_file_time_to_roll,
rocksdb_db_options.log_file_time_to_roll,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::log_file_time_to_roll for RocksDB",
nullptr, nullptr,
rocksdb_db_options.log_file_time_to_roll,
/* min */ 0L, /* max */ SIZE_T_MAX, 0);
static MYSQL_SYSVAR_SIZE_T(keep_log_file_num,
rocksdb_db_options.keep_log_file_num,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::keep_log_file_num for RocksDB", nullptr,
nullptr, rocksdb_db_options.keep_log_file_num,
/* min */ 0L, /* max */ SIZE_T_MAX, 0);
static MYSQL_SYSVAR_UINT64_T(max_manifest_file_size,
rocksdb_db_options.max_manifest_file_size,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::max_manifest_file_size for RocksDB",
nullptr, nullptr,
rocksdb_db_options.max_manifest_file_size,
/* min */ 0L, /* max */ ULONGLONG_MAX, 0);
static MYSQL_SYSVAR_INT(table_cache_numshardbits,
rocksdb_db_options.table_cache_numshardbits,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::table_cache_numshardbits for RocksDB",
nullptr, nullptr,
rocksdb_db_options.table_cache_numshardbits,
/* min */ 0, /* max */ INT_MAX, 0);
static MYSQL_SYSVAR_UINT64_T(wal_ttl_seconds, rocksdb_db_options.WAL_ttl_seconds,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::WAL_ttl_seconds for RocksDB", nullptr,
nullptr, rocksdb_db_options.WAL_ttl_seconds,
/* min */ 0L, /* max */ LONGLONG_MAX, 0);
static MYSQL_SYSVAR_UINT64_T(wal_size_limit_mb,
rocksdb_db_options.WAL_size_limit_MB,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::WAL_size_limit_MB for RocksDB", nullptr,
nullptr, rocksdb_db_options.WAL_size_limit_MB,
/* min */ 0L, /* max */ LONGLONG_MAX, 0);
static MYSQL_SYSVAR_SIZE_T(manifest_preallocation_size,
rocksdb_db_options.manifest_preallocation_size,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::manifest_preallocation_size for RocksDB",
nullptr, nullptr,
rocksdb_db_options.manifest_preallocation_size,
/* min */ 0L, /* max */ SIZE_T_MAX, 0);
static MYSQL_SYSVAR_BOOL(
use_direct_reads,
*reinterpret_cast<my_bool *>(&rocksdb_db_options.use_direct_reads),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::use_direct_reads for RocksDB", nullptr, nullptr,
rocksdb_db_options.use_direct_reads);
static MYSQL_SYSVAR_BOOL(
use_direct_writes,
*reinterpret_cast<my_bool *>(&rocksdb_db_options.use_direct_writes),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::use_direct_writes for RocksDB", nullptr, nullptr,
rocksdb_db_options.use_direct_writes);
static MYSQL_SYSVAR_BOOL(
allow_mmap_reads,
*reinterpret_cast<my_bool *>(&rocksdb_db_options.allow_mmap_reads),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::allow_mmap_reads for RocksDB", nullptr, nullptr,
rocksdb_db_options.allow_mmap_reads);
static MYSQL_SYSVAR_BOOL(
allow_mmap_writes,
*reinterpret_cast<my_bool *>(&rocksdb_db_options.allow_mmap_writes),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::allow_mmap_writes for RocksDB", nullptr, nullptr,
rocksdb_db_options.allow_mmap_writes);
static MYSQL_SYSVAR_BOOL(
is_fd_close_on_exec,
*reinterpret_cast<my_bool *>(&rocksdb_db_options.is_fd_close_on_exec),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::is_fd_close_on_exec for RocksDB", nullptr, nullptr,
rocksdb_db_options.is_fd_close_on_exec);
static MYSQL_SYSVAR_UINT(stats_dump_period_sec,
rocksdb_db_options.stats_dump_period_sec,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::stats_dump_period_sec for RocksDB",
nullptr, nullptr,
rocksdb_db_options.stats_dump_period_sec,
/* min */ 0, /* max */ INT_MAX, 0);
static MYSQL_SYSVAR_BOOL(
advise_random_on_open,
*reinterpret_cast<my_bool *>(&rocksdb_db_options.advise_random_on_open),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::advise_random_on_open for RocksDB", nullptr, nullptr,
rocksdb_db_options.advise_random_on_open);
static MYSQL_SYSVAR_SIZE_T(db_write_buffer_size,
rocksdb_db_options.db_write_buffer_size,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::db_write_buffer_size for RocksDB",
nullptr, nullptr,
rocksdb_db_options.db_write_buffer_size,
/* min */ 0L, /* max */ SIZE_T_MAX, 0);
static MYSQL_SYSVAR_BOOL(
use_adaptive_mutex,
*reinterpret_cast<my_bool *>(&rocksdb_db_options.use_adaptive_mutex),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::use_adaptive_mutex for RocksDB", nullptr, nullptr,
rocksdb_db_options.use_adaptive_mutex);
static MYSQL_SYSVAR_UINT64_T(bytes_per_sync, rocksdb_db_options.bytes_per_sync,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::bytes_per_sync for RocksDB", nullptr,
nullptr, rocksdb_db_options.bytes_per_sync,
/* min */ 0L, /* max */ ULONGLONG_MAX, 0);
static MYSQL_SYSVAR_UINT64_T(wal_bytes_per_sync,
rocksdb_db_options.wal_bytes_per_sync,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::wal_bytes_per_sync for RocksDB", nullptr,
nullptr, rocksdb_db_options.wal_bytes_per_sync,
/* min */ 0L, /* max */ ULONGLONG_MAX, 0);
static MYSQL_SYSVAR_BOOL(
enable_thread_tracking,
*reinterpret_cast<my_bool *>(&rocksdb_db_options.enable_thread_tracking),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"DBOptions::enable_thread_tracking for RocksDB", nullptr, nullptr,
rocksdb_db_options.enable_thread_tracking);
static MYSQL_SYSVAR_LONGLONG(block_cache_size, rocksdb_block_cache_size,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"block_cache size for RocksDB", nullptr, nullptr,
/* default */ RDB_DEFAULT_BLOCK_CACHE_SIZE,
/* min */ RDB_MIN_BLOCK_CACHE_SIZE,
/* max */ LONGLONG_MAX,
/* Block size */ RDB_MIN_BLOCK_CACHE_SIZE);
static MYSQL_SYSVAR_BOOL(
cache_index_and_filter_blocks,
*reinterpret_cast<my_bool *>(
&rocksdb_tbl_options.cache_index_and_filter_blocks),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"BlockBasedTableOptions::cache_index_and_filter_blocks for RocksDB",
nullptr, nullptr, true);
// When pin_l0_filter_and_index_blocks_in_cache is true, RocksDB will use the
// LRU cache, but will always keep the filter & idndex block's handle checked
// out (=won't call ShardedLRUCache::Release), plus the parsed out objects
// the LRU cache will never push flush them out, hence they're pinned.
//
// This fixes the mutex contention between :ShardedLRUCache::Lookup and
// ShardedLRUCache::Release which reduced the QPS ratio (QPS using secondary
// index / QPS using PK).
static MYSQL_SYSVAR_BOOL(
pin_l0_filter_and_index_blocks_in_cache,
*reinterpret_cast<my_bool *>(
&rocksdb_tbl_options.pin_l0_filter_and_index_blocks_in_cache),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"pin_l0_filter_and_index_blocks_in_cache for RocksDB", nullptr, nullptr,
true);
static MYSQL_SYSVAR_ENUM(index_type, rocksdb_index_type,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"BlockBasedTableOptions::index_type for RocksDB",
nullptr, nullptr,
(ulong)rocksdb_tbl_options.index_type,
&index_type_typelib);
static MYSQL_SYSVAR_BOOL(
hash_index_allow_collision,
*reinterpret_cast<my_bool *>(
&rocksdb_tbl_options.hash_index_allow_collision),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"BlockBasedTableOptions::hash_index_allow_collision for RocksDB", nullptr,
nullptr, rocksdb_tbl_options.hash_index_allow_collision);
static MYSQL_SYSVAR_BOOL(
no_block_cache,
*reinterpret_cast<my_bool *>(&rocksdb_tbl_options.no_block_cache),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"BlockBasedTableOptions::no_block_cache for RocksDB", nullptr, nullptr,
rocksdb_tbl_options.no_block_cache);
static MYSQL_SYSVAR_SIZE_T(block_size, rocksdb_tbl_options.block_size,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"BlockBasedTableOptions::block_size for RocksDB",
nullptr, nullptr, rocksdb_tbl_options.block_size,
/* min */ 1L, /* max */ SIZE_T_MAX, 0);
static MYSQL_SYSVAR_INT(
block_size_deviation, rocksdb_tbl_options.block_size_deviation,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"BlockBasedTableOptions::block_size_deviation for RocksDB", nullptr,
nullptr, rocksdb_tbl_options.block_size_deviation,
/* min */ 0, /* max */ INT_MAX, 0);
static MYSQL_SYSVAR_INT(
block_restart_interval, rocksdb_tbl_options.block_restart_interval,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"BlockBasedTableOptions::block_restart_interval for RocksDB", nullptr,
nullptr, rocksdb_tbl_options.block_restart_interval,
/* min */ 1, /* max */ INT_MAX, 0);
static MYSQL_SYSVAR_BOOL(
whole_key_filtering,
*reinterpret_cast<my_bool *>(&rocksdb_tbl_options.whole_key_filtering),
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"BlockBasedTableOptions::whole_key_filtering for RocksDB", nullptr, nullptr,
rocksdb_tbl_options.whole_key_filtering);
static MYSQL_SYSVAR_STR(default_cf_options, rocksdb_default_cf_options,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"default cf options for RocksDB", nullptr, nullptr, "");
static MYSQL_SYSVAR_STR(override_cf_options, rocksdb_override_cf_options,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"option overrides per cf for RocksDB", nullptr, nullptr,
"");
static MYSQL_SYSVAR_BOOL(background_sync, rocksdb_background_sync,
PLUGIN_VAR_RQCMDARG,
"turns on background syncs for RocksDB", nullptr,
nullptr, FALSE);
static MYSQL_THDVAR_UINT(flush_log_at_trx_commit, PLUGIN_VAR_RQCMDARG,
"Sync on transaction commit. Similar to "
"innodb_flush_log_at_trx_commit. 1: sync on commit, "
"0,2: not sync on commit",
nullptr, nullptr, 1, 0, 2, 0);
static MYSQL_THDVAR_BOOL(write_disable_wal, PLUGIN_VAR_RQCMDARG,
"WriteOptions::disableWAL for RocksDB", nullptr,
nullptr, rocksdb::WriteOptions().disableWAL);
static MYSQL_THDVAR_BOOL(
write_ignore_missing_column_families, PLUGIN_VAR_RQCMDARG,
"WriteOptions::ignore_missing_column_families for RocksDB", nullptr,
nullptr, rocksdb::WriteOptions().ignore_missing_column_families);
static MYSQL_THDVAR_BOOL(skip_fill_cache, PLUGIN_VAR_RQCMDARG,
"Skip filling block cache on read requests", nullptr,
nullptr, FALSE);
static MYSQL_THDVAR_BOOL(
unsafe_for_binlog, PLUGIN_VAR_RQCMDARG,
"Allowing statement based binary logging which may break consistency",
nullptr, nullptr, FALSE);
static MYSQL_THDVAR_UINT(records_in_range, PLUGIN_VAR_RQCMDARG,
"Used to override the result of records_in_range(). "
"Set to a positive number to override",
nullptr, nullptr, 0,
/* min */ 0, /* max */ INT_MAX, 0);