/*
* Copyright (c) 2020 Huawei Technologies Co.,Ltd.
*
* openGauss is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
*
* http://license.coscl.org.cn/MulanPSL2
*
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
* ---------------------------------------------------------------------------------------
*
* statctl.h
* definitions for statistics control functions
*
* IDENTIFICATION
* src/include/workload/statctl.h
*
* ---------------------------------------------------------------------------------------
*/
#ifndef STATCTL_H
#define STATCTL_H
#include "workload/parctl.h"
#include "instruments/list.h"
#define StringIsValid(pstr) (pstr && *pstr)
#define SqlIsValid(sql) (StringIsValid(sql) && strcmp(sql, ";") != 0)
#define KBYTES 1024
#define MBYTES (KBYTES * KBYTES)
#define MAX_SLEEP_TIME 5 /*seconds*/
#define STAT_PATH_LEN KBYTES
#define INFO_STR_LEN 94
/*
* warning includes
* - 256 byte reserved for warnings from query-executor
* - 2kb reserved for warnings from query-optimizer
*/
#define WARNING_INFO_LEN 2304
#define WARNING_SPILL_SIZE 256 /* 256MB */
#define WARNING_BROADCAST_SIZE 100 /* 100MB */
#define WARNING_SPILL_TIME 3
#define WARNING_HASH_CONFLICT_LEN 256
#define GSUSER_ALLNUM 102400
#define PAST_TIME_COUNT 3
#define SIG_RECVDATA_COUNT 16
#define GSWLM_CONF_DIR "etc"
#define GSWLMCFG_PREFIX "gswlm"
#define GSCONF_NAME "userinfo"
#define MAX_DEVICE_LEN 64
#define ALL_USER "0000" //"0000" is an invalid user name, means update all user used space
#define AVERAGE_VALUE(m, n, p) (((n) > (m)) ? (((int)((n) - (m))) / (p)) : (0))
#define GET_LARGER_VALUE(x, y) (((x) > (y)) ? (x) : (y))
#define PEAK_VALUE(start, end, intval, cmp) (GET_LARGER_VALUE(AVERAGE_VALUE((start), (end), (intval)), (cmp)))
/*get max and min data in the session info, min value maybe 0, so set -1 as init value*/
#define GetMaxAndMinCollectInfo(info, elem, data) \
do { \
if (data > info->max##elem) \
info->max##elem = data; \
if (info->min##elem == -1) \
info->min##elem = data; \
else if (data < info->min##elem) \
info->min##elem = data; \
} while (0)
#define WLM_USER_RESOURCE_HISTORY "gs_wlm_user_resource_history"
#define WLM_INSTANCE_HISTORY "gs_wlm_instance_history"
#define WLM_EC_OPERATOR_INFO "gs_wlm_ec_operator_info"
#define WLM_OPERATOR_INFO "gs_wlm_operator_info"
#define WLM_SESSION_INFO "gs_wlm_session_query_info_all"
enum WLMActionTag {
WLM_ACTION_REMAIN = 0, /* keep thread running */
WLM_ACTION_ADJUST, /* change control group of statement */
WLM_ACTION_ABORT, /* abort the statement */
WLM_ACTION_FINISHED, /* finish the statement */
WLM_ACTION_FETCHSESS, /* fetch session info */
WLM_ACTION_REMOVED /* info removed */
};
enum WLMStatusTag {
WLM_STATUS_RESERVE = 0, /* a status before waiting in wlm queue */
WLM_STATUS_PENDING, /* waiting in the wlm queue */
WLM_STATUS_RUNNING, /* statement is running */
WLM_STATUS_FINISHED, /* statement is finished */
WLM_STATUS_ABORT, /* statement is abort */
WLM_STATUS_RELEASE /* wlm collect infomation is into db list or release statistics ctrl*/
};
enum WLMAttrTag {
WLM_ATTR_NORMAL = 0, /* Normal is not into db */
WLM_ATTR_INDB, /* push collect infomation into db list */
WLM_ATTR_INVALID /* collect info is invalid */
};
enum WLMWarnTag {
WLM_WARN_NONE = 0, /* no warn */
WLM_WARN_SPILL,
WLM_WARN_EARLY_SPILL,
WLM_WARN_SPILL_TIMES_LARGE,
WLM_WARN_SPILL_FILE_LARGE,
WLM_WARN_BROADCAST_LARGE,
WLM_WARN_SPILL_ON_MEMORY_SPREAD,
WLM_WARN_HASH_CONFLICT
};
enum WLMExceptTag {
WLM_EXCEPT_NONE = 0,
WLM_EXCEPT_CPU,
WLM_EXCEPT_SPOOL,
WLM_EXCEPT_QUEUE_TIMEOUT,
WLM_EXCEPT_RUN_TIMEOUT
};
struct Qid {
Oid procId; /* cn id for the statement */
uint64 queryId; /* query id for statement, it's a session id */
TimestampTz stamp; /* query time stamp */
};
/* user info in the user config file */
struct WLMUserInfo {
Oid userid; /* user id */
Oid rpoid; /* resource pool id */
Oid parentid; /* parent user id */
int childcount; /* count of the child user */
int64 space; /* user space */
int64 spacelimit; /* user space limit */
int used; /* user info is used */
bool admin; /* user is admin user? */
char* children; /* child list string */
};
/* general params */
struct WLMGeneralParam {
Qid qid; /* a tag of a query */
char cgroup[NAMEDATALEN]; /* cgroup name */
char ngroup[NAMEDATALEN]; /* node group name */
unsigned char cpuctrl; /* under cpu control? */
unsigned char memtrack; /* track memory ? */
unsigned char iotrack; /* track IO? */
unsigned char iocontrol; /* need control IO ?*/
unsigned char infoinit; /* hash tab init */
unsigned char iostate; /* workload io state*/
unsigned char complicate; /* query is complicated */
unsigned char complicate_stream; /* query is complicated & thread is stream */
unsigned char privilege; /* flags reserved */
RespoolData rpdata; /* resource pool in use */
int memsize; /* statement memory size, mb */
int max_memsize; /*max statement memory size */
int min_memsize; /* min statement memory size */
int dopvalue; /* current dop value */
int iops_limits; /* iops_limits */
int io_priority; /* io percentage transfered from io_priority */
int iocount; /* io count */
void* infoptr; /* a pointer to user info in configure file */
void* ptr; /* a pointer in general param */
void* ioptr; /* io info pointer */
void* rp; /* resource pool */
void* userdata; /* user data */
bool use_planA; /* force use plan A*/
};
template <typename DataType>
struct WLMDataIndicator {
DataType min_value;
DataType max_value;
DataType total_value;
DataType avg_value;
int skew_percent;
};
/* collect user information from DN */
struct WLMUserCollInfoDetail {
char nodeName[NAMEDATALEN]; /* node name */
WLMDataIndicator<int> usedMemoryData; /* used memory data */
WLMDataIndicator<int> currIopsData; /* current iops for all DN */
WLMDataIndicator<int> peakIopsData; /* peak iops for all DN */
int cpuUsedCnt; /* cpu core counts used */
int cpuTotalCnt; /* cpu core counts used */
int nodeCount; /* node count */
int64 totalSpace; /* total used space */
/* IO flow data */
uint64 readBytes; /* current readKb for all DN */
uint64 writeBytes; /* current writeKb for all DN */
uint64 readCounts; /* current read counts for all DN */
uint64 writeCounts; /* current write counts for all DN */
int64 tmpSpace; /* total used temp space*/
int64 spillSpace; /* total used spill space*/
};
/* collect realtime info detail */
struct WLMCollectInfoDetail {
char nodeName[NAMEDATALEN]; /* node name */
Oid* group_members; /* group members of one node group */
int group_count; /* group count of one node group */
int usedMemory; /* memory used */
int peakMemory; /* peak memory */
int spillCount; /* count for spill */
int warning; /* warning info */
int nodeCount; /* node count */
int maxUsedMemory; /* max used memory */
int avgUsedMemory; /* average used memory */
int cpuCnt; /* cpu core counts used */
int64 dnTime; /* query used time on dn */
uint64 space; /* table space used */
int64 cpuTime; /* cpu time used */
int maxIOUtil; /* max IO util */
int minIOUtil; /* min IO util */
int maxCpuUtil; /* max CPU util */
int minCpuUtil; /* min CPU util */
int peak_iops; /* peak iops */
int curr_iops; /* current iops */
int64 spillSize; /* spill size*/
int64 broadcastSize; /* broadcast size */
char misc[NAMEDATALEN];
};
struct WLMGeneralInfo {
int64 totalCpuTime; /* total query cpu time on dn */
int64 maxCpuTime; /* max query cpu time on dn */
int64 minCpuTime; /* min query cpu time on dn */
int64 dnTime; /* query used time on dn */
int maxUsedMemory; /* max used memory */
int maxPeakChunksQuery; /* max peak chunks for query */
int minPeakChunksQuery; /* min peak chunks for query */
int spillCount; /* total spill count */
int spillNodeCount; /* the count of the data node with spilled */
int64 spillSize; /* spill size*/
int64 broadcastSize; /* broadcast size, unit is bytes */
int64 broadcastThreshold; /* Threshold of broadcast size, unit is bytes */
int scanCount; /* scan counter */
int nodeCount; /* data node counter */
uint64 totalSpace; /* total table space */
WLMActionTag action; /* data node num */
char* nodeInfo; /* node info string */
};
struct WLMGeneralData {
WLMDataIndicator<int> peakMemoryData; /* peak memory data */
WLMDataIndicator<int> usedMemoryData; /* used memory data */
WLMDataIndicator<int> spillData; /* spill data */
WLMDataIndicator<int> broadcastData; /* broadcast data */
WLMDataIndicator<int> currIopsData; /* current iops for all DN */
WLMDataIndicator<int> peakIopsData; /* peak iops for all DN */
WLMDataIndicator<int64> dnTimeData; /* query used time on dn */
WLMDataIndicator<int64> cpuData; /* query cpu time on dn */
int nodeCount; /* node count */
int spillNodeCount; /* spill node count */
int warning; /* warning info */
uint64 totalSpace; /* total table space */
WLMTopDnList* WLMCPUTopDnInfo; /* top5 cpu dn list */
WLMTopDnList* WLMMEMTopDnInfo; /* top5 mem dn list */
SlowQueryInfo slowQueryInfo;
List* query_plan;
int tag;
};
struct WLMIoGeninfo {
// calculated variable from io_priority
int curr_iops_limit; /* current iops_limits calculated from io_priority*/
int prio_count_down; /* count down for io_priority 3, 2, 1 */
int io_count; /* update when write/read is running reset every io_priority gap (0.5, 1, 1.5) */
int hist_iops_tbl[PAST_TIME_COUNT]; /* history io_count table */
// iops collectinfo
int io_count_persec; /* IO count for io_priority*** ----reset every second*/
int tick_count_down; /* count down for collect info */
// iops statistics --update each second
int curr_iops; /* current mean iops */
int peak_iops; /* peak mean iops */
int nodeCount; /* count of node */
/* IO flow */
uint64 read_bytes[2]; /* logical read_bytes */
uint64 write_bytes[2]; /* logical write_bytes */
uint64 read_counts[2]; /* read operation counts */
uint64 write_counts[2]; /* write operation counts */
uint64 group_value[4]; /* used for group user */
uint64 read_speed; /* read speed */
uint64 write_speed; /* write speed */
TimestampTz timestampTz; /* last timestamp */
// the belowing is only updated on CN
WLMDataIndicator<int> currIopsData; /* current iops for all DN */
WLMDataIndicator<int> peakIopsData; /* peak iops for all DN */
};
/* reply statement info */
struct WLMStmtReplyDetail {
Oid procId; /* cn id for the statement */
uint64 queryId; /* query id for statement, it's a session id */
TimestampTz stamp; /* query time stamp */
int estimate_memory; /* estimate total memory */
WLMStatusTag status; /* wlm status of statement */
};
/* statement info */
struct WLMStmtDetail {
Qid qid; /* qid for query */
Oid databaseid; /* database id */
Oid userid; /* user id */
uint64 debug_query_id; /* debug query id */
uint64 plan_size; /* plan size */
Oid rpoid; /* resource pool oid */
char respool[NAMEDATALEN]; /* resource pool */
char cgroup[NAMEDATALEN]; /* cgroup name */
char nodegroup[NAMEDATALEN]; /* node group name */
char appname[NAMEDATALEN]; /* application name */
char* username; /* user name */
char* schname; /* schema name */
char* msg; /* statement's message to show */
char* query_plan_issue; /* query plan issue */
char* query_plan; /* query plan */
char* query_band; /* query band */
char* statement; /* sql statement text */
char* clienthostname; /* MUST be null-terminated */
void* clientaddr; /* client address */
WLMGeneralInfo geninfo; /* general session info */
WLMIoGeninfo ioinfo; /* session IO info */
SlowQueryInfo slowQueryInfo; /* slow query info */
ThreadId threadid; /* thread id */
bool valid; /* detail info is valid? */
TimestampTz start_time; /* query start time stamp */
TimestampTz fintime; /* query finish time stamp */
TimestampTz exptime; /* record expire time */
WLMStatusTag status; /* wlm status of statement */
int64 block_time; /* query block time */
int64 estimate_time; /* estimate total time */
int estimate_memory; /* estimate total memory */
int warning; /* warning info */
};
/* data node resource info update */
struct WLMNodeUpdateInfo {
Qid qid; /* id for statement on dn */
char nodegroup[NAMEDATALEN]; /* node group name */
unsigned char cpuctrl; /* reference counter */
WLMGeneralInfo geninfo; /* general info for the dnode collect info */
};
/* data node resource info, it's used on CN and DN */
struct WLMDNodeInfo {
Qid qid; /* id for statement on dn */
Oid userid; /* user id */
char cgroup[NAMEDATALEN]; /* cgroup name */
char nodegroup[NAMEDATALEN]; /* node group name */
char schname[NAMEDATALEN]; /* schema name */
char* statement; /* sql statement text */
char* qband; /* query band string */
ThreadId tid; /* cn pid */
volatile int threadCount; /* a counter of thread */
unsigned char cpuctrl; /* reference counter */
unsigned char restrack; /* resource track flag */
unsigned char flags[2]; /* reserve flags */
WLMActionTag tag; /* action tag */
void* mementry; /* session memory entry */
void* respool; /* resource pool in htab */
void* userdata; /* user info pointer */
WLMGeneralInfo geninfo; /* general info for the dnode collect info */
int64 block_time; /* query block time */
TimestampTz start_time; /* query start time stamp */
};
struct WLMDNodeIOInfo {
Qid qid; /* id for statement on dn */
ThreadId tid; /* cn pid */
WLMActionTag tag; /* action tag */
char nodegroup[NAMEDATALEN]; /* node group name */
// user set GUC variables
int io_priority; /* user set io percent for query */
int iops_limits; /* user set iops_limits for each query */
void* userptr; /* UserData pointer in the htab */
int io_state; /* IOSTATE_WRITE? IOSTATE_READ? */
volatile int threadCount; /* thread attached for the query */
WLMIoGeninfo io_geninfo; /* io general info for query */
};
/* data node real time resource info */
struct WLMDNRealTimeInfoDetail {
Qid qid; /* id for statement on dn */
int64 cpuStartTime; /* start cpu time */
int64 cpuEndTime; /* end cpu time */
pid_t tid; /* a key of this detail info, it's a thread id */
unsigned char cpuctrl; /* cpu control is valid ? */
unsigned char flags[3]; /* save it in the collect info list? */
WLMStatusTag status; /* status of the detail info */
};
/* cgroup info */
struct WLMCGroupInfo {
gscgroup_grp_t* grpinfo; /* cgroup exception infomation */
char cgroup[NAMEDATALEN]; /* cgroup name */
bool attaching; /* check the thread whether is attaching a new cgroup */
bool invalid; /* check the cgroup whether is invalid */
};
/* collect info on cn */
struct WLMCollectInfo {
WLMStmtDetail sdetail; /* statement info detail */
WLMCGroupInfo cginfo; /* control group info */
TimestampTz blockStartTime; /* query block start time */
TimestampTz blockEndTime; /* query block end time for a period of time*/
TimestampTz execStartTime; /* query exec start time */
TimestampTz execEndTime; /* query exec end time for a period of time*/
int trait; /* trait for exception handler */
int update; /* reserved */
int64 max_mem; /* max memory for thread */
int64 avail_mem; /* available memory for thread */
WLMStatusTag status; /* wlm status of statement */
WLMActionTag action; /* wlm action for statement process */
WLMAttrTag attribute; /* wlm attribute of statement */
};
/* exception manager */
struct ExceptionManager {
TimestampTz blockEndTime; /* statement block end time */
TimestampTz execEndTime; /* statement execute end time */
TimestampTz adjustEndTime; /* statement penalty end time for a period of time */
TimestampTz intvalEndTime; /* interval end time */
TimestampTz qualiEndTime; /* qualification end time */
int max_waiting_time; /* statement max block time */
int max_running_time; /* statement max execute time */
int max_adjust_time; /* statement max penalty time */
int max_interval_time; /* statement max interval time */
except_data_t except[EXCEPT_ALL_KINDS]; /* cgroup exception infomation */
};
struct WLMIoStatisticsGenenral {
ThreadId tid;
int maxcurr_iops; /* max current iops for all DN */
int mincurr_iops; /* max current iops for all DN */
int maxpeak_iops; /* max current iops for all DN */
int minpeak_iops; /* max current iops for all DN */
int iops_limits;
int io_priority;
int curr_iops_limit; /* iops_limit calculated from io_priority*/
};
struct WLMIoStatisticsList {
WLMIoStatisticsGenenral* node;
WLMIoStatisticsList* next;
};
/* query runtime info for pg_session_wlmstat */
struct WLMStatistics {
char stmt[KBYTES]; /* statement */
int64 blocktime; /* query block time while waiting in the queue */
int64 elapsedtime; /* elapsed time of the query */
int64 maxcputime; /* max cpu time of the query */
int64 totalcputime; /* total cpu time of the query */
int64 qualitime; /* the qualification time of the query */
int skewpercent; /* the skew percent of the query */
int priority; /* priority in the queue */
int stmt_mem; /* statement memory */
int act_pts; /* active points */
int dop_value; /* dop value */
char cgroup[NAMEDATALEN]; /* control group */
char srespool[NAMEDATALEN]; /* session_respool */
char* status; /* status */
char* action; /* action */
char* enqueue; /* enqueue state: respool, global or none. */
char* qtype; /* statement's type, simple or complicated. */
bool is_planA; /* statement's type, simple or complicated. */
char groupname[NAMEDATALEN]; /* node group name */
};
/* session history resource info for gs_wlm_session_query_info_all */
struct WLMSessionStatistics {
char respool[NAMEDATALEN]; /* resource pool */
char cgroup[NAMEDATALEN]; /* cgroup name */
char nodegroup[NAMEDATALEN]; /* node group name */
char spillInfo[16]; /* spill info */
WLMGeneralData gendata; /* wlm general data on dn */
Qid qid; /* qid for the query */
Oid databaseid; /* database id */
Oid userid; /* user id */
uint64 debug_query_id; /* debug query id */
TimestampTz start_time; /* query start time stamp */
TimestampTz fintime; /* query finish time stamp */
ThreadId tid; /* thread id */
WLMStatusTag status; /* wlm status of statement */
int64 block_time; /* query block time */
int64 estimate_time; /* estimate total time */
int64 duration; /* query excute time */
char* query_band; /* query band */
char* query_plan; /* query plan */
char* query_plan_issue; /* query plan issue */
char* err_msg; /* error message */
char* statement; /* sql statement text */
char* schname; /* schema name */
char* appname; /* application name */
char* clienthostname; /* client host name */
char* username; /* user name */
void* clientaddr; /* client address */
bool remove; /* remove info from hash table */
int estimate_memory; /* estimate total memory */
uint64 n_returned_rows;
};
struct WLMSigReceiveData {
char cgroup[NAMEDATALEN]; /* cgroup name */
pthread_t tid; /* thread id */
int priority; /* priority of cgroup */
int used; /* slot is used */
};
typedef struct IOHashCtrl {
int lockId; /* lock id */
HTAB* hashTable; /* hash tables */
} IOHashCtrl;
/* statistics control */
struct WLMStatManager {
int max_collectinfo_num; /* max collect info num in list */
int max_statistics_num; /* max collect info num in list */
int max_iostatinfo_num; /* max iostat info num in list */
int max_detail_num; /* max session info num in the hash table */
int index; /* index of the statistics memory */
int comp_count; /* complicated statement count */
unsigned char stop; /* a flag to stop running. */
unsigned char overwrite; /* check the statistics memory whether is overwritten */
unsigned char datainit; /* a flag to check collect_info_hashtbl whether has record. */
unsigned char remain;
char user[NAMEDATALEN]; /* user name to use in the backend thread */
char mon_user[NAMEDATALEN]; /* user name to use in wlm monitor thread */
char database[NAMEDATALEN]; /* database name to use in the backend thread */
char execdir[STAT_PATH_LEN]; /* the path for binaries */
char datadir[STAT_PATH_LEN]; /* the path for log */
unsigned int infoinit; /* htab init ok */
unsigned int sendsig; /* send signal */
TimestampTz scanEndTime; /* a timer for collect data persistence */
ThreadId thread_id; /* backend thread id */
HTAB* collect_info_hashtbl; /* collect information hash table */
HTAB* session_info_hashtbl; /* session fino hash table for the query finished */
HTAB* user_info_hashtbl; /* user info hash tbale */
IOHashCtrl* iostat_info_hashtbl; /* iostat info control */
HTAB* node_group_hashtbl; /* node group hash table */
HASH_SEQ_STATUS collect_info_seq; /* collect info hash table seq */
HASH_SEQ_STATUS iostat_info_seq; /* collect info hash table seq */
WLMStatistics* statistics; /* the pointer to statistics memory */
WLMSigReceiveData* recvdata; /* received data */
WLMUserInfo** userinfo; /* user info list */
pthread_mutex_t statistics_mutex; /* mutex to lock the statistics list */
pthread_mutex_t collectinfo_list_mutex; /* mutex to lock the list */
};
/* Structures for I/O stats. */
struct DiskIOStats {
unsigned long long total_io; /* total io operation */
unsigned long read_sectors; /* read sectors */
unsigned long write_sectors; /* write sectors */
unsigned long read_io; /* read io operation */
unsigned long read_merges; /* read requests merged */
unsigned long write_io; /* write io operation */
unsigned long write_merges; /* write requests merged */
unsigned int read_ticks; /* Time of read requests in queue */
unsigned int write_ticks; /* Time of write requests in queue */
unsigned int discard_ticks; /* Time of discard requests in queue */
unsigned int total_ticks; /* total ticks */
unsigned int queue_ticks; /* Time of ticks requests spent in queue */
};
/* I/O stats calculcate result. */
struct DiskIOStatsMetric {
double rsectors; /* rsec/s */
double wsectors; /* wsec/s */
double util; /* disk util */
double await; /* disk await */
};
/* dn instance info */
typedef struct WLMInstanceInfo {
TimestampTz timestamp; /* timestamp */
double usr_cpu; /* userspace cpu usage */
double sys_cpu; /* system cpu usage */
int free_mem; /* instance free mem, max_process_mem - process_used_memory */
int used_mem; /* instance used mem */
double io_await; /* disk io_await */
double io_util; /* disk io_util */
double disk_read; /* disk read speed */
double disk_write; /* disk write speed */
uint64 process_read_speed; /* gaussdb process read speed */
uint64 process_write_speed; /* gaussdb process write speed */
uint64 read_counts; /* logical read counts */
uint64 write_counts; /* logical write counts */
uint64 logical_read_speed; /* logical read speed */
uint64 logical_write_speed; /* logical write speed */
} WLMInstanceInfo;
/* dn instance statistics control */
typedef struct WLMInstanceStatManager {
int max_stat_num; /* max stat info num in list */
int collect_interval; /* the collect info interval */
int persistence_interval; /* the persistence interval */
int cleanup_interval; /* the cleanup history info interval */
char instancename[NAMEDATALEN]; /* dn instance name */
char diskname[MAX_DEVICE_LEN]; /* the dn diskname */
uint64 totalCPUTime[2]; /* total time of the cpu,0 is old value,1 is new value */
uint64 userCPUTime[2]; /*cpu time of the process user mode,0 is old value,1 is new value*/
uint64 sysCPUTime[2]; /*cpu time of the process systerm mode,0 is old value,1 is new value*/
unsigned long long uptime[2]; /* uptime array */
DiskIOStats device[2]; /* dev statistics */
uint64 process_read_bytes[2]; /* gaussdb process read bytes */
uint64 process_write_bytes[2]; /* gaussdb process write bytes */
uint64 logical_read_bytes[2]; /* logical write bytes */
uint64 logical_write_bytes[2]; /* logical write bytes */
uint64 read_counts[2]; /* logical read counts */
uint64 write_counts[2]; /* logical write counts */
TimestampTz last_timestamp; /* a timer for collect data*/
TimestampTz recent_timestamp; /* a timer for collect data*/
HTAB* instance_info_hashtbl; /* instance info hash table */
} WLMInstanceStatManager;
/* process wlm workload manager */
extern int WLMProcessWorkloadManager();
/* get hashCode of io statistics from qid */
extern uint32 GetIoStatBucket(const Qid* qid);
/* get lockId of io statistics from hashCode */
extern int GetIoStatLockId(const uint32 bucket);
/* initialize stat info */
extern void WLMInitializeStatInfo();
/* set stat info */
extern void WLMSetStatInfo(const char*);
/* reset stat info for exception */
extern void WLMResetStatInfo4Exception();
/* generate a hash code by a key */
extern uint32 WLMHashCode(const void* key, Size keysize);
/* set collect info status to finished */
extern void WLMSetCollectInfoStatusFinish();
/* set collect info status */
extern void WLMSetCollectInfoStatus(WLMStatusTag);
/* create collect info on datanodes */
extern void WLMCreateDNodeInfoOnDN(const QueryDesc*);
/* get wlm backend state */
extern void WLMGetStatistics(TimestampTz*, TimestampTz*, WLMStatistics*);
/* get wlm statistics for handling exception */
extern WLMStatistics* WLMGetStatistics(int*);
/* initialize worker thread */
extern void WLMWorkerInitialize(struct Port*);
/* worker thread main function */
extern int WLMProcessThreadMain();
/* shut down the worker thread*/
extern void WLMProcessThreadShutDown();
/* get session info */
extern void* WLMGetSessionInfo(const Qid* qid, int removed, int* num);
/* get instance info */
extern void* WLMGetInstanceInfo(int* num, bool isCleanup);
/* plan list format string */
extern char* PlanListToString(const List* query_plan);
/* get session info from each data nodes */
extern char* WLMGetSessionLevelInfoInternal(Qid* qid, WLMGeneralInfo* geninfo);
/* get wlm session statistics */
extern void* WLMGetSessionStatistics(int* num);
/* get wlm session io statistics */
extern void* WLMGetIoStatistics(int* num);
/* switch cgroup with cn thread id */
extern bool WLMAjustCGroupByCNSessid(uint64 sess_id, const char* cgroup);
extern void WLMAdjustCGroup4EachThreadOnDN(WLMDNodeInfo* info);
/* get spill info string */
extern char* WLMGetSpillInfo(char* spillInfo, int size, int spillNodeCount);
/* get warn info string */
extern void WLMGetWarnInfo(char* warnInfo, int size, unsigned int warn_bit, int spill_size, int broadcast_size,
WLMSessionStatistics* session_stat = NULL);
/* get skew ratio of datanodes */
extern int GetSkewRatioOfDN(const WLMGeneralInfo* pGenInfo);
/* get each datanode session info for a thread */
extern WLMCollectInfoDetail* WLMGetSessionInfo4Thread(ThreadId threadid, int* num);
/* parse node info string */
extern void WLMParseInfoString(const char* infostr, WLMCollectInfoDetail* detail);
/* parse collect info string */
extern void WLMParseFunc4CollectInfo(StringInfo msg, void* suminfo, int size);
/* alloc function for hash table */
extern void* WLMAlloc0NoExcept4Hash(Size size);
/* check user info htab init is ok */
extern bool WLMIsInfoInit(void);
/* get user info from the user config */
extern WLMUserInfo* WLMGetUserInfoFromConfig(Oid uid, bool* found);
/* get user cgroup cpu util */
extern int WLMGetGroupCpuUtil(char* nodegroup, void* handles, const char* cgroup);
extern uint32 WLMHashCode(const void* key, Size keysize);
extern int WLMHashMatch(const void* key1, const void* key2, Size keysize);
extern bool IsQidInvalid(const Qid* qid);
extern bool IsQidEqual(const Qid* qid1, const Qid* qid2);
extern void WLMLocalInfoCollector(StringInfo msg);
extern void WLMAdjustCGroup4EachThreadOnDN(WLMDNodeInfo* info);
extern void WLMCreateIOInfoOnDN(void);
extern WLMIoStatisticsList* WLMGetIOStatisticsGeneral();
extern void WLMCleanUpIoInfo(void);
extern void WLMUpdateCgroupCPUInfo(void);
extern void WLMInitTransaction(bool* backinit);
extern void WLMInitPostgres();
extern void WLMCleanIOHashTable();
extern void WLMSetBuildHashStat(int status);
extern bool WLMIsQueryFinished(void);
extern void WLMReadjustAllUserSpace(Oid uid);
extern void WLMReadjustUserSpaceThroughAllDbs(const char* username);
extern void WLMReadjustUserSpaceByNameWithResetFlag(const char* username, bool resetFlag);
extern WLMCollectInfoDetail* WLMGetUserSessionInfo4Thread(const char* uname, int* num);
extern void WLMSetExecutorStartTime(void);
extern bool WLMIsDumpActive(const char* sql);
extern void WLMCheckSigRecvData(void);
extern char* GetStatusName(WLMStatusTag tag);
extern char* WLMGetExceptWarningMsg(WLMExceptTag tag);
extern int64 WLMGetTimestampDuration(TimestampTz start, TimestampTz end);
extern void WLMInitQueryPlan(QueryDesc* queryDesc, bool isQueryDesc = true);
extern double WLMGetTotalCost(const QueryDesc* desc, bool isQueryDesc);
extern int WLMGetQueryMem(const QueryDesc* desc, bool isQueryDesc, bool max = true);
extern bool WLMGetInComputePool(const QueryDesc* desc, bool isQueryDesc);
extern int WLMGetMinMem(const QueryDesc* desc, bool isQueryDesc, bool max = true);
extern int WLMGetAvailbaleMemory(const char* ngname);
extern bool WLMChoosePlanA(PlannedStmt* stmt);
extern void WLMGetWorkloadStruct(StringInfo strinfo);
extern void WLMDefaultXactReadOnlyCheckAndHandle(void);
extern void WLMTopSQLReady(QueryDesc* queryDesc);
extern void WLMReleaseIoInfoFromHash(void);
#define WORKLOAD_STAT_HASH_SIZE 64
// default database name
#define DEFDBNAME "postgres"
#ifdef ENABLE_UT
void ut_to_update(void*);
#endif
#endif