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ha_ndbcluster.cc
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/* Copyright (c) 2004, 2023, Oracle and/or its affiliates.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2.0,
as published by the Free Software Foundation.
This program is also distributed with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have included with MySQL.
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, version 2.0, 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
/**
@file
@brief
This file defines the NDB Cluster handler: the interface between
MySQL and NDB Cluster
*/
#include "ha_ndbcluster_glue.h"
#include "ha_ndbcluster.h"
#include <ndbapi/NdbApi.hpp>
#include <ndbapi/NdbIndexStat.hpp>
#include <ndbapi/NdbInterpretedCode.hpp>
#include "../storage/ndb/src/ndbapi/NdbQueryBuilder.hpp"
#include "../storage/ndb/src/ndbapi/NdbQueryOperation.hpp"
#include "ha_ndbcluster_binlog.h"
#include "ha_ndbcluster_push.h"
#include "ha_ndbcluster_cond.h"
#include "ha_ndbcluster_tables.h"
#include "ha_ndbcluster_connection.h"
#include "ndb_thd.h"
#include "ndb_table_guard.h"
#include "ndb_global_schema_lock.h"
#include "ndb_global_schema_lock_guard.h"
#include "abstract_query_plan.h"
#include "partition_info.h"
#include "ndb_dist_priv_util.h"
#include "ha_ndb_index_stat.h"
#include <mysql/plugin.h>
#include <ndb_version.h>
#include <ndb_global.h>
#include "ndb_mi.h"
#include "ndb_conflict.h"
#include "ndb_anyvalue.h"
#include "ndb_binlog_extra_row_info.h"
#include "ndb_event_data.h"
#include "ndb_schema_dist.h"
#include "ndb_component.h"
#include "ndb_util_thread.h"
#include "ndb_local_connection.h"
#include "ndb_local_schema.h"
#include "ndb_tdc.h"
#include "ndb_log.h"
#include "ndb_name_util.h"
#include "ndb_bitmap.h"
#include "ndb_modifiers.h"
#include <mysql/psi/mysql_thread.h>
#include "mysqld_thd_manager.h" // Global_THD_manager
#include "../storage/ndb/src/common/util/parse_mask.hpp"
#include "../storage/ndb/include/util/SparseBitmask.hpp"
#include "m_ctype.h"
using std::min;
using std::max;
// ndb interface initialization/cleanup
extern "C" void ndb_init_internal(Uint32);
extern "C" void ndb_end_internal(Uint32);
static const int DEFAULT_PARALLELISM= 0;
static const ha_rows DEFAULT_AUTO_PREFETCH= 32;
static const ulong ONE_YEAR_IN_SECONDS= (ulong) 3600L*24L*365L;
ulong opt_ndb_extra_logging;
static ulong opt_ndb_wait_connected;
ulong opt_ndb_wait_setup;
static ulong opt_ndb_cache_check_time;
static uint opt_ndb_cluster_connection_pool;
static char* opt_connection_pool_nodeids_str;
static uint opt_ndb_recv_thread_activation_threshold;
static char* opt_ndb_recv_thread_cpu_mask;
static char* opt_ndb_index_stat_option;
static char* opt_ndb_connectstring;
static uint opt_ndb_nodeid;
static my_bool opt_ndb_read_backup;
static ulong opt_ndb_data_node_neighbour;
static my_bool opt_ndb_fully_replicated;
#define MYSQL_VERSION_NDB_DEFAULT_COLUMN_FORMAT_DYNAMIC 50711
enum ndb_default_colum_format_enum {
NDB_DEFAULT_COLUMN_FORMAT_FIXED= 0,
NDB_DEFAULT_COLUMN_FORMAT_DYNAMIC= 1
};
static const char* default_column_format_names[]= { "FIXED", "DYNAMIC", NullS };
static ulong opt_ndb_default_column_format;
static TYPELIB default_column_format_typelib= {
array_elements(default_column_format_names) - 1,
"",
default_column_format_names,
NULL
};
static MYSQL_SYSVAR_ENUM(
default_column_format, /* name */
opt_ndb_default_column_format, /* var */
PLUGIN_VAR_RQCMDARG,
"Change COLUMN_FORMAT DEFAULT (fixed or dynamic) "
"for backward compatibility. Also affects the default "
"for ROW_FORMAT.",
NULL, /* check func. */
NULL, /* update func. */
NDB_DEFAULT_COLUMN_FORMAT_FIXED, /* default */
&default_column_format_typelib /* typelib */
);
static MYSQL_THDVAR_UINT(
autoincrement_prefetch_sz, /* name */
PLUGIN_VAR_RQCMDARG,
"Specify number of autoincrement values that are prefetched.",
NULL, /* check func. */
NULL, /* update func. */
1, /* default */
1, /* min */
65535, /* max */
0 /* block */
);
static MYSQL_THDVAR_BOOL(
force_send, /* name */
PLUGIN_VAR_OPCMDARG,
"Force send of buffers to ndb immediately without waiting for "
"other threads.",
NULL, /* check func. */
NULL, /* update func. */
1 /* default */
);
static MYSQL_THDVAR_BOOL(
use_exact_count, /* name */
PLUGIN_VAR_OPCMDARG,
"Use exact records count during query planning and for fast "
"select count(*), disable for faster queries.",
NULL, /* check func. */
NULL, /* update func. */
0 /* default */
);
static MYSQL_THDVAR_BOOL(
use_transactions, /* name */
PLUGIN_VAR_OPCMDARG,
"Use transactions for large inserts, if enabled then large "
"inserts will be split into several smaller transactions",
NULL, /* check func. */
NULL, /* update func. */
1 /* default */
);
static MYSQL_THDVAR_BOOL(
use_copying_alter_table, /* name */
PLUGIN_VAR_OPCMDARG,
"Force ndbcluster to always copy tables at alter table (should "
"only be used if online alter table fails).",
NULL, /* check func. */
NULL, /* update func. */
0 /* default */
);
static MYSQL_THDVAR_BOOL(
allow_copying_alter_table, /* name */
PLUGIN_VAR_OPCMDARG,
"Specifies if implicit copying alter table is allowed. Can be overridden "
"by using ALGORITHM=COPY in the alter table command.",
NULL, /* check func. */
NULL, /* update func. */
1 /* default */
);
static MYSQL_THDVAR_UINT(
optimized_node_selection, /* name */
PLUGIN_VAR_OPCMDARG,
"Select nodes for transactions in a more optimal way.",
NULL, /* check func. */
NULL, /* update func. */
3, /* default */
0, /* min */
3, /* max */
0 /* block */
);
static MYSQL_THDVAR_ULONG(
batch_size, /* name */
PLUGIN_VAR_RQCMDARG,
"Batch size in bytes.",
NULL, /* check func. */
NULL, /* update func. */
32768, /* default */
0, /* min */
2UL * 1024 * 1024 * 1024 , /* max */
0 /* block */
);
static MYSQL_THDVAR_ULONG(
optimization_delay, /* name */
PLUGIN_VAR_RQCMDARG,
"For optimize table, specifies the delay in milliseconds "
"for each batch of rows sent.",
NULL, /* check func. */
NULL, /* update func. */
10, /* default */
0, /* min */
100000, /* max */
0 /* block */
);
#if NDB_VERSION_D < NDB_MAKE_VERSION(7,2,0)
#define DEFAULT_NDB_INDEX_STAT_ENABLE FALSE
#else
#define DEFAULT_NDB_INDEX_STAT_ENABLE TRUE
#endif
static MYSQL_THDVAR_BOOL(
index_stat_enable, /* name */
PLUGIN_VAR_OPCMDARG,
"Use ndb index statistics in query optimization.",
NULL, /* check func. */
NULL, /* update func. */
DEFAULT_NDB_INDEX_STAT_ENABLE /* default */
);
static MYSQL_THDVAR_BOOL(
table_no_logging, /* name */
PLUGIN_VAR_NOCMDARG,
"",
NULL, /* check func. */
NULL, /* update func. */
FALSE /* default */
);
static MYSQL_THDVAR_BOOL(
table_temporary, /* name */
PLUGIN_VAR_NOCMDARG,
"",
NULL, /* check func. */
NULL, /* update func. */
FALSE /* default */
);
static MYSQL_THDVAR_UINT(
blob_read_batch_bytes, /* name */
PLUGIN_VAR_RQCMDARG,
"Specifies the bytesize large Blob reads "
"should be batched into. 0 == No limit.",
NULL, /* check func */
NULL, /* update func */
65536, /* default */
0, /* min */
UINT_MAX, /* max */
0 /* block */
);
static MYSQL_THDVAR_UINT(
blob_write_batch_bytes, /* name */
PLUGIN_VAR_RQCMDARG,
"Specifies the bytesize large Blob writes "
"should be batched into. 0 == No limit.",
NULL, /* check func */
NULL, /* update func */
65536, /* default */
0, /* min */
UINT_MAX, /* max */
0 /* block */
);
static MYSQL_THDVAR_UINT(
deferred_constraints, /* name */
PLUGIN_VAR_RQCMDARG,
"Specified that constraints should be checked deferred (when supported)",
NULL, /* check func */
NULL, /* update func */
0, /* default */
0, /* min */
1, /* max */
0 /* block */
);
static MYSQL_THDVAR_BOOL(
show_foreign_key_mock_tables, /* name */
PLUGIN_VAR_OPCMDARG,
"Show the mock tables which is used to support foreign_key_checks= 0. "
"Extra info warnings are shown when creating and dropping the tables. "
"The real table name is show in SHOW CREATE TABLE",
NULL, /* check func. */
NULL, /* update func. */
0 /* default */
);
#if NDB_VERSION_D < NDB_MAKE_VERSION(7,2,0)
#define DEFAULT_NDB_JOIN_PUSHDOWN FALSE
#else
#define DEFAULT_NDB_JOIN_PUSHDOWN TRUE
#endif
static MYSQL_THDVAR_BOOL(
join_pushdown, /* name */
PLUGIN_VAR_OPCMDARG,
"Enable pushing down of join to datanodes",
NULL, /* check func. */
NULL, /* update func. */
DEFAULT_NDB_JOIN_PUSHDOWN /* default */
);
static MYSQL_THDVAR_BOOL(
log_exclusive_reads, /* name */
PLUGIN_VAR_OPCMDARG,
"Log primary key reads with exclusive locks "
"to allow conflict resolution based on read conflicts",
NULL, /* check func. */
NULL, /* update func. */
0 /* default */
);
/*
Required in index_stat.cc but available only from here
thanks to use of top level anonymous structs.
*/
bool ndb_index_stat_get_enable(THD *thd)
{
const bool value = THDVAR(thd, index_stat_enable);
return value;
}
bool ndb_show_foreign_key_mock_tables(THD* thd)
{
const bool value = THDVAR(thd, show_foreign_key_mock_tables);
return value;
}
bool ndb_log_exclusive_reads(THD *thd)
{
const bool value = THDVAR(thd, log_exclusive_reads);
return value;
}
static int ndbcluster_end(handlerton *hton, ha_panic_function flag);
static bool ndbcluster_show_status(handlerton *hton, THD*,
stat_print_fn *,
enum ha_stat_type);
static int ndbcluster_get_tablespace(THD* thd,
LEX_CSTRING db_name,
LEX_CSTRING table_name,
LEX_CSTRING *tablespace_name);
static int ndbcluster_alter_tablespace(handlerton *hton,
THD* thd,
st_alter_tablespace *info);
static int ndbcluster_fill_files_table(handlerton *hton,
THD *thd,
TABLE_LIST *tables,
Item *cond);
static int handle_trailing_share(THD *thd, NDB_SHARE *share);
/**
Used to fill in INFORMATION_SCHEMA* tables.
@param hton handle to the handlerton structure
@param thd the thread/connection descriptor
@param[in,out] tables the information schema table that is filled up
@param cond used for conditional pushdown to storage engine
@param schema_table_idx the table id that distinguishes the type of table
@return Operation status
*/
static int
ndbcluster_fill_is_table(handlerton *hton, THD *thd, TABLE_LIST *tables,
Item *cond, enum enum_schema_tables schema_table_idx)
{
if (schema_table_idx == SCH_FILES)
return ndbcluster_fill_files_table(hton, thd, tables, cond);
return 0;
}
static handler *ndbcluster_create_handler(handlerton *hton,
TABLE_SHARE *table,
MEM_ROOT *mem_root)
{
return new (mem_root) ha_ndbcluster(hton, table);
}
static uint
ndbcluster_partition_flags()
{
return (HA_CAN_UPDATE_PARTITION_KEY |
HA_CAN_PARTITION_UNIQUE | HA_USE_AUTO_PARTITION);
}
uint ha_ndbcluster::alter_flags(uint flags) const
{
const uint f=
HA_PARTITION_FUNCTION_SUPPORTED |
0;
if (flags & Alter_info::ALTER_DROP_PARTITION)
return 0;
return f;
}
#define NDB_AUTO_INCREMENT_RETRIES 100
#define BATCH_FLUSH_SIZE (32768)
#define ERR_PRINT(err) \
DBUG_PRINT("error", ("%d message: %s", err.code, err.message))
#define ERR_RETURN(err) \
{ \
const NdbError& tmp= err; \
DBUG_RETURN(ndb_to_mysql_error(&tmp)); \
}
#define ERR_BREAK(err, code) \
{ \
const NdbError& tmp= err; \
code= ndb_to_mysql_error(&tmp); \
break; \
}
#define ERR_SET(err, code) \
{ \
const NdbError& tmp= err; \
code= ndb_to_mysql_error(&tmp); \
}
static int ndbcluster_inited= 0;
/*
Indicator used to delay client and slave
connections until Ndb has Binlog setup
(bug#46955)
*/
int ndb_setup_complete= 0; // Use ndbcluster_mutex & ndbcluster_cond
extern Ndb* g_ndb;
/// Handler synchronization
mysql_mutex_t ndbcluster_mutex;
mysql_cond_t ndbcluster_cond;
/// Table lock handling
HASH ndbcluster_open_tables;
HASH ndbcluster_dropped_tables;
static uchar *ndbcluster_get_key(NDB_SHARE *share, size_t *length,
my_bool);
static void modify_shared_stats(NDB_SHARE *share,
Ndb_local_table_statistics *local_stat);
static int ndb_get_table_statistics(THD *thd, ha_ndbcluster*, bool, Ndb*,
const NdbDictionary::Table*,
const NdbRecord *,
struct Ndb_statistics *,
uint part_id= ~(uint)0);
static ulong multi_range_fixed_size(int num_ranges);
static ulong multi_range_max_entry(NDB_INDEX_TYPE keytype, ulong reclength);
/* Status variables shown with 'show status like 'Ndb%' */
struct st_ndb_status g_ndb_status;
const char *g_ndb_status_index_stat_status = "";
long g_ndb_status_index_stat_cache_query = 0;
long g_ndb_status_index_stat_cache_clean = 0;
long long g_event_data_count = 0;
long long g_event_nondata_count = 0;
long long g_event_bytes_count = 0;
static long long g_slave_api_client_stats[Ndb::NumClientStatistics];
static long long g_server_api_client_stats[Ndb::NumClientStatistics];
void
update_slave_api_stats(Ndb* ndb)
{
for (Uint32 i=0; i < Ndb::NumClientStatistics; i++)
g_slave_api_client_stats[i] = ndb->getClientStat(i);
}
st_ndb_slave_state g_ndb_slave_state;
#ifdef HAVE_NDB_BINLOG
static int check_slave_config(THD* thd)
{
DBUG_ENTER("check_slave_config");
if (ndb_get_number_of_channels() > 1)
{
sql_print_error("Slave SQL: Configuration with number of replication masters = %u' is not supported when applying to Ndb",
ndb_get_number_of_channels());
DBUG_RETURN(HA_ERR_UNSUPPORTED);
}
if (ndb_mi_get_slave_parallel_workers() > 0)
{
sql_print_error("Slave SQL: Configuration 'slave_parallel_workers = %lu' is not supported when applying to Ndb",
ndb_mi_get_slave_parallel_workers());
DBUG_RETURN(HA_ERR_UNSUPPORTED);
}
DBUG_RETURN(0);
}
#endif
static int check_slave_state(THD* thd)
{
DBUG_ENTER("check_slave_state");
#ifdef HAVE_NDB_BINLOG
if (!thd->slave_thread)
DBUG_RETURN(0);
if (g_ndb_slave_state.applier_sql_thread_start == true)
{
/*
* Check for unsupported slave configuration
*/
int error = check_slave_config(thd);
if (unlikely(error))
DBUG_RETURN(error);
DBUG_PRINT("info", ("Resetting g_ndb_slave_state.applier_sql_thread_start"));
g_ndb_slave_state.applier_sql_thread_start = false;
g_ndb_slave_state.atStartSlave();
/* Always try to load the Max Replicated Epoch info
* first.
* Could be made optional if it's a problem
*/
{
/*
Load highest replicated epoch from a local
MySQLD from the cluster.
*/
DBUG_PRINT("info", ("Loading applied epoch information from %s",
NDB_APPLY_TABLE));
NdbError ndb_error;
Uint64 highestAppliedEpoch = 0;
do
{
Ndb* ndb= check_ndb_in_thd(thd);
NDBDICT* dict= ndb->getDictionary();
NdbTransaction* trans= NULL;
ndb->setDatabaseName(NDB_REP_DB);
Ndb_table_guard ndbtab_g(dict, NDB_APPLY_TABLE);
const NDBTAB* ndbtab= ndbtab_g.get_table();
if (unlikely(ndbtab == NULL))
{
ndb_error = dict->getNdbError();
break;
}
trans= ndb->startTransaction();
if (unlikely(trans == NULL))
{
ndb_error = ndb->getNdbError();
break;
}
do
{
NdbScanOperation* sop = trans->getNdbScanOperation(ndbtab);
if (unlikely(sop == NULL))
{
ndb_error = trans->getNdbError();
break;
}
const Uint32 server_id_col_num = 0;
const Uint32 epoch_col_num = 1;
NdbRecAttr* server_id_ra = 0;
NdbRecAttr* epoch_ra = 0;
if (unlikely((sop->readTuples(NdbOperation::LM_CommittedRead) != 0) ||
((server_id_ra = sop->getValue(server_id_col_num)) == NULL) ||
((epoch_ra = sop->getValue(epoch_col_num)) == NULL)))
{
ndb_error = sop->getNdbError();
break;
}
if (trans->execute(NdbTransaction::Commit))
{
ndb_error = trans->getNdbError();
break;
}
int rc = 0;
while (0 == (rc= sop->nextResult(true)))
{
Uint32 serverid = server_id_ra->u_32_value();
Uint64 epoch = epoch_ra->u_64_value();
if ((serverid == ::server_id) ||
(ndb_mi_get_ignore_server_id(serverid)))
{
highestAppliedEpoch = MAX(epoch, highestAppliedEpoch);
}
}
if (rc != 1)
{
ndb_error = sop->getNdbError();
break;
}
} while (0);
trans->close();
} while(0);
if (ndb_error.code != 0)
{
sql_print_warning("NDB Slave : Could not determine maximum replicated epoch from %s.%s "
"at Slave start, error %u %s",
NDB_REP_DB,
NDB_APPLY_TABLE,
ndb_error.code, ndb_error.message);
}
/*
Set Global status variable to the Highest Applied Epoch from
the Cluster DB.
If none was found, this will be zero.
*/
g_ndb_slave_state.max_rep_epoch = highestAppliedEpoch;
sql_print_information("NDB Slave : MaxReplicatedEpoch set to %llu (%u/%u) at Slave start",
g_ndb_slave_state.max_rep_epoch,
(Uint32)(g_ndb_slave_state.max_rep_epoch >> 32),
(Uint32)(g_ndb_slave_state.max_rep_epoch & 0xffffffff));
} // Load highest replicated epoch
} // New Slave SQL thread run id
#endif
DBUG_RETURN(0);
}
static int update_status_variables(Thd_ndb *thd_ndb,
st_ndb_status *ns,
Ndb_cluster_connection *c)
{
ns->connected_port= c->get_connected_port();
ns->connected_host= c->get_connected_host();
if (ns->cluster_node_id != (int) c->node_id())
{
ns->cluster_node_id= c->node_id();
if (&g_ndb_status == ns && g_ndb_cluster_connection == c)
sql_print_information("NDB: NodeID is %lu, management server '%s:%lu'",
ns->cluster_node_id, ns->connected_host,
ns->connected_port);
}
ns->number_of_replicas= 0;
{
int n= c->get_no_ready();
ns->number_of_ready_data_nodes= n > 0 ? n : 0;
}
ns->number_of_data_nodes= c->no_db_nodes();
ns->connect_count= c->get_connect_count();
ns->system_name = c->get_system_name();
ns->last_commit_epoch_server= ndb_get_latest_trans_gci();
if (thd_ndb)
{
ns->execute_count= thd_ndb->m_execute_count;
ns->scan_count= thd_ndb->m_scan_count;
ns->pruned_scan_count= thd_ndb->m_pruned_scan_count;
ns->sorted_scan_count= thd_ndb->m_sorted_scan_count;
ns->pushed_queries_defined= thd_ndb->m_pushed_queries_defined;
ns->pushed_queries_dropped= thd_ndb->m_pushed_queries_dropped;
ns->pushed_queries_executed= thd_ndb->m_pushed_queries_executed;
ns->pushed_reads= thd_ndb->m_pushed_reads;
ns->last_commit_epoch_session = thd_ndb->m_last_commit_epoch_session;
for (int i= 0; i < MAX_NDB_NODES; i++)
{
ns->transaction_no_hint_count[i]= thd_ndb->m_transaction_no_hint_count[i];
ns->transaction_hint_count[i]= thd_ndb->m_transaction_hint_count[i];
}
for (int i=0; i < Ndb::NumClientStatistics; i++)
{
ns->api_client_stats[i] = thd_ndb->ndb->getClientStat(i);
}
ns->schema_locks_count= thd_ndb->schema_locks_count;
}
return 0;
}
/* Helper macro for definitions of NdbApi status variables */
#define NDBAPI_COUNTERS(NAME_SUFFIX, ARRAY_LOCATION) \
{"api_wait_exec_complete_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::WaitExecCompleteCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_wait_scan_result_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::WaitScanResultCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_wait_meta_request_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::WaitMetaRequestCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_wait_nanos_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::WaitNanosCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_bytes_sent_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::BytesSentCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_bytes_received_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::BytesRecvdCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_trans_start_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::TransStartCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_trans_commit_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::TransCommitCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_trans_abort_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::TransAbortCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_trans_close_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::TransCloseCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_pk_op_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::PkOpCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_uk_op_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::UkOpCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_table_scan_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::TableScanCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_range_scan_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::RangeScanCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_pruned_scan_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::PrunedScanCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_scan_batch_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::ScanBatchCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_read_row_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::ReadRowCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_trans_local_read_row_count" NAME_SUFFIX, \
(char*) ARRAY_LOCATION[ Ndb::TransLocalReadRowCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_adaptive_send_forced_count" NAME_SUFFIX, \
(char *) ARRAY_LOCATION[ Ndb::ForcedSendsCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_adaptive_send_unforced_count" NAME_SUFFIX, \
(char *) ARRAY_LOCATION[ Ndb::UnforcedSendsCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}, \
{"api_adaptive_send_deferred_count" NAME_SUFFIX, \
(char *) ARRAY_LOCATION[ Ndb::DeferredSendsCount ], \
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL}
SHOW_VAR ndb_status_variables_dynamic[]= {
{"cluster_node_id", (char*) &g_ndb_status.cluster_node_id, SHOW_LONG, SHOW_SCOPE_GLOBAL},
{"config_from_host", (char*) &g_ndb_status.connected_host, SHOW_CHAR_PTR, SHOW_SCOPE_GLOBAL},
{"config_from_port", (char*) &g_ndb_status.connected_port, SHOW_LONG, SHOW_SCOPE_GLOBAL},
//{"number_of_replicas", (char*) &g_ndb_status.number_of_replicas, SHOW_LONG, SHOW_SCOPE_GLOBAL},
{"number_of_data_nodes",(char*) &g_ndb_status.number_of_data_nodes, SHOW_LONG, SHOW_SCOPE_GLOBAL},
{"number_of_ready_data_nodes",
(char*) &g_ndb_status.number_of_ready_data_nodes, SHOW_LONG, SHOW_SCOPE_GLOBAL},
{"connect_count", (char*) &g_ndb_status.connect_count, SHOW_LONG, SHOW_SCOPE_GLOBAL},
{"execute_count", (char*) &g_ndb_status.execute_count, SHOW_LONG, SHOW_SCOPE_GLOBAL},
{"scan_count", (char*) &g_ndb_status.scan_count, SHOW_LONG, SHOW_SCOPE_GLOBAL},
{"pruned_scan_count", (char*) &g_ndb_status.pruned_scan_count, SHOW_LONG, SHOW_SCOPE_GLOBAL},
{"schema_locks_count", (char*) &g_ndb_status.schema_locks_count, SHOW_LONG, SHOW_SCOPE_GLOBAL},
NDBAPI_COUNTERS("_session", &g_ndb_status.api_client_stats),
{"sorted_scan_count", (char*) &g_ndb_status.sorted_scan_count, SHOW_LONG, SHOW_SCOPE_GLOBAL},
{"pushed_queries_defined", (char*) &g_ndb_status.pushed_queries_defined,
SHOW_LONG, SHOW_SCOPE_GLOBAL},
{"pushed_queries_dropped", (char*) &g_ndb_status.pushed_queries_dropped,
SHOW_LONG, SHOW_SCOPE_GLOBAL},
{"pushed_queries_executed", (char*) &g_ndb_status.pushed_queries_executed,
SHOW_LONG, SHOW_SCOPE_GLOBAL},
{"pushed_reads", (char*) &g_ndb_status.pushed_reads, SHOW_LONG, SHOW_SCOPE_GLOBAL},
{"last_commit_epoch_server",
(char*) &g_ndb_status.last_commit_epoch_server,
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL},
{"last_commit_epoch_session",
(char*) &g_ndb_status.last_commit_epoch_session,
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL},
{"system_name", (char*) &g_ndb_status.system_name, SHOW_CHAR_PTR, SHOW_SCOPE_GLOBAL},
{NullS, NullS, SHOW_LONG, SHOW_SCOPE_GLOBAL}
};
SHOW_VAR ndb_status_injector_variables[]= {
{"api_event_data_count_injector", (char*) &g_event_data_count, SHOW_LONGLONG, SHOW_SCOPE_GLOBAL},
{"api_event_nondata_count_injector", (char*) &g_event_nondata_count, SHOW_LONGLONG, SHOW_SCOPE_GLOBAL},
{"api_event_bytes_count_injector", (char*) &g_event_bytes_count, SHOW_LONGLONG, SHOW_SCOPE_GLOBAL},
{NullS, NullS, SHOW_LONG, SHOW_SCOPE_GLOBAL}
};
SHOW_VAR ndb_status_slave_variables[]= {
NDBAPI_COUNTERS("_slave", &g_slave_api_client_stats),
{"slave_max_replicated_epoch", (char*) &g_ndb_slave_state.max_rep_epoch, SHOW_LONGLONG, SHOW_SCOPE_GLOBAL},
{NullS, NullS, SHOW_LONG, SHOW_SCOPE_GLOBAL}
};
SHOW_VAR ndb_status_server_client_stat_variables[]= {
NDBAPI_COUNTERS("", &g_server_api_client_stats),
{"api_event_data_count",
(char*) &g_server_api_client_stats[ Ndb::DataEventsRecvdCount ],
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL},
{"api_event_nondata_count",
(char*) &g_server_api_client_stats[ Ndb::NonDataEventsRecvdCount ],
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL},
{"api_event_bytes_count",
(char*) &g_server_api_client_stats[ Ndb::EventBytesRecvdCount ],
SHOW_LONGLONG, SHOW_SCOPE_GLOBAL},
{NullS, NullS, SHOW_LONG, SHOW_SCOPE_GLOBAL}
};
static int show_ndb_server_api_stats(THD *thd, SHOW_VAR *var, char *buff)
{
/* This function is called when SHOW STATUS / INFO_SCHEMA wants
* to see one of our status vars
* We use this opportunity to :
* 1) Update the globals with current values
* 2) Return an array of var definitions, pointing to
* the updated globals
*/
ndb_get_connection_stats((Uint64*) &g_server_api_client_stats[0]);
var->type= SHOW_ARRAY;
var->value= (char*) ndb_status_server_client_stat_variables;
var->scope= SHOW_SCOPE_GLOBAL;
return 0;
}
SHOW_VAR ndb_status_index_stat_variables[]= {
{"status", (char*) &g_ndb_status_index_stat_status, SHOW_CHAR_PTR, SHOW_SCOPE_GLOBAL},
{"cache_query", (char*) &g_ndb_status_index_stat_cache_query, SHOW_LONG, SHOW_SCOPE_GLOBAL},
{"cache_clean", (char*) &g_ndb_status_index_stat_cache_clean, SHOW_LONG, SHOW_SCOPE_GLOBAL},
{NullS, NullS, SHOW_LONG, SHOW_SCOPE_GLOBAL}
};
/*
Error handling functions
*/
/* Note for merge: old mapping table, moved to storage/ndb/ndberror.c */
int ndb_to_mysql_error(const NdbError *ndberr)
{
/* read the mysql mapped error code */
int error= ndberr->mysql_code;
switch (error)
{
/* errors for which we do not add warnings, just return mapped error code
*/
case HA_ERR_NO_SUCH_TABLE:
case HA_ERR_KEY_NOT_FOUND:
return error;
/* Mapping missing, go with the ndb error code */
case -1:
case 0:
/* Never map to errors below HA_ERR_FIRST */
if (ndberr->code < HA_ERR_FIRST)
error= HA_ERR_INTERNAL_ERROR;
else
error= ndberr->code;
break;
/* Mapping exists, go with the mapped code */
default:
break;
}
{
/*
Push the NDB error message as warning
- Used to be able to use SHOW WARNINGS to get more info
on what the error is
- Used by replication to see if the error was temporary
*/
if (ndberr->status == NdbError::TemporaryError)
push_warning_printf(current_thd, Sql_condition::SL_WARNING,
ER_GET_TEMPORARY_ERRMSG, ER(ER_GET_TEMPORARY_ERRMSG),
ndberr->code, ndberr->message, "NDB");
else
push_warning_printf(current_thd, Sql_condition::SL_WARNING,
ER_GET_ERRMSG, ER(ER_GET_ERRMSG),
ndberr->code, ndberr->message, "NDB");
}
return error;
}
/**
Report error using my_error() and the values extracted from the NdbError.
If a proper mysql_code mapping is not available, the error message
from the ndbError is pushed to my_error.
If a proper mapping is available, the ndb error message is pushed as a
warning and the mapped mysql error code is pushed as the error.
@param ndberr The NdbError object with error information
*/
void ndb_my_error(const NdbError *ndberr)
{
if (ndberr->mysql_code == -1)
{
/* No mysql_code mapping present - print ndb error message */
const int error_number = (ndberr->status == NdbError::TemporaryError)
? ER_GET_TEMPORARY_ERRMSG
: ER_GET_ERRMSG;
my_error(error_number, MYF(0), ndberr->code, ndberr->message, "NDB");
}
else
{
/* MySQL error code mapping is present.
* Now call ndb_to_mysql_error() with the ndberr object.
* This will check the validity of the mysql error code
* and convert it into a more proper error if required.
* It will also push the ndb error message as a warning.
*/
const int error_number = ndb_to_mysql_error(ndberr);
/* Now push the relevant mysql error to my_error */
my_error(error_number, MYF(0));
}
}
ulong opt_ndb_slave_conflict_role;
#ifdef HAVE_NDB_BINLOG
static int
handle_conflict_op_error(NdbTransaction* trans,
const NdbError& err,
const NdbOperation* op);
static int
handle_row_conflict(NDB_CONFLICT_FN_SHARE* cfn_share,
const char* tab_name,
bool table_has_blobs,
const char* handling_type,
const NdbRecord* key_rec,
const NdbRecord* data_rec,
const uchar* old_row,
const uchar* new_row,
enum_conflicting_op_type op_type,
enum_conflict_cause conflict_cause,
const NdbError& conflict_error,
NdbTransaction* conflict_trans,
const MY_BITMAP *write_set,
Uint64 transaction_id);
#endif
static const Uint32 error_op_after_refresh_op = 920;
static inline
int
check_completed_operations_pre_commit(Thd_ndb *thd_ndb, NdbTransaction *trans,
const NdbOperation *first,
const NdbOperation *last,
uint *ignore_count)
{
uint ignores= 0;
DBUG_ENTER("check_completed_operations_pre_commit");
if (unlikely(first == 0))
{
assert(last == 0);