1. 使用测试-当前环境

• 环境变量

[gbasedbt@node01 ~]$ cat profile.node1
export GBASEDBTSERVER=node1
export GBASEDBTDIR=/home/gbasedbt/gbase
export GBASEDBTSQLHOSTS=/home/gbasedbt/gbase/etc/sqlhosts.node1
export ONCONFIG=onconfig.node1
export PATH=/home/gbasedbt/gbase/bin:$PATH
export DB_LOCALE=zh_CN.utf8
export CLIENT_LOCALE=zh_CN.utf8
export GL_USEGLU=1
export GL_DATE="%Y-%m-%d"
export GL_DATETIME="%Y-%m-%d %H:%M:%S"
export PSORT_NPROCS=4
export PDQPRIORITY=100
alias dbaccess="rlwrap dbaccess"
export DBACCESS_SHOW_TIME=1

• 参数

[gbasedbt@node01 ~]$ onstat -g cfg|grep ^DS_
Your evaluation license will expire on 2025-06-26 00:00:00
DS_HASHSIZE               31
DS_POOLSIZE               127
DS_MAX_QUERIES            4
DS_TOTAL_MEMORY           4096000
DS_MAX_SCANS              1048576
DS_NONPDQ_QUERY_MEM       20480

• 表数据量

> select count(*) from test;(count(*))5594846

2. PDQ测试-并检查

[gbasedbt@node01 ~]$ dbaccess test -
Your evaluation license will expire on 2025-06-26 00:00:00Database selected.> set PDQPRIORITY 60;PDQ Priority set.Elapsed time: 0.001 sec> select id,count(*) from test group by id;id       (count(*))50672               5685521               4715588               4863243               6059116               4853026               4663799               6539676               6650928               5210717               7459986               5428078               6295875               5674312               7079294               6272278               6591819               541899               5145370               5768540               6113790               62

[gbasedbt@node01 ~]$ onstat -g mgm
Your evaluation license will expire on 2025-06-26 00:00:00
On-Line -- Up 01:33:16 -- 3228180 KbytesMemory Grant Manager (MGM)
--------------------------MAX_PDQPRIORITY:  100
DS_MAX_QUERIES:    4
DS_MAX_SCANS:      1048576
DS_NONPDQ_QUERY_MEM: 20480 KB
DS_TOTAL_MEMORY:   4096000 KBQueries:   Active     Ready   Maximum1         0         4Memory:     Total      Free   Quantum
(KB)       4096000   1638400   1024000Scans:      Total      Free   Quantum1048576   1048572         1Load Control:    (Memory)      (Scans)  (Priority)  (Max Queries)   (Reinit)Gate 1       Gate 2      Gate 3         Gate 4     Gate 5
(Queue Length)          0            0           0              0          0Active Queries:
---------------
Session          Query  Priority         Thread   Memory  Scans      Gate
--有使用PDQ并行查询的sql34       51a10038     60          505cb4c0    0/307200    0/4       -Ready Queries:  NoneFree Resource        Average #        Minimum #
--------------    ---------------     ---------
Memory               4.7 +- 28.9            0
Scans             1048576.0 +- 0.0          1048572Queries              Average #        Maximum #    Total #
--------------    ---------------     ---------    -------
Active               1.0 +- 0.0             1       2000022
Ready                1.0 +- 0.0             1       290644Resource/Lock Cycle Prevention count:  0