homework-jianmu/tests/stress

STRESS

Stress test tool for TDengine. It run a set of test cases randomly and show statistics.

COMMAND LINE

$ ./stress [-h=<localhost>] [-P=<0>] [-d=<test>] [-u=<root>] [-p=<taosdata>] [-c=<4>] [-f=<true>] [-l=<logPath>] [path_or_sql]

• -h: host name or IP address of TDengine server (default: localhost).
• -P: port number of TDengine server (default: 0).
• -u: user name (default: root).
• -p: password (default: taosdata).
• -c: concurrency, number of concurrent goroutines for query (default: 4).
• -f: fetch data or not (default: true).
• -l: log file path (default: no log).
• path_or_sql: a SQL statement or path of a JSON file which contains the test cases (default: cases.json).

TEST CASE FILE

[{
    "weight": 1,
    "sql": "select * from meters where ts>=now+%dm and ts<=now-%dm and c1=%v and c2=%d and c3='%s' and tbname='%s'",
    "args": [{
        "type": "range",
        "min": 30,
        "max": 60
    }, {
        "type": "bool"
    }, {
        "type": "int",
        "min": -10,
        "max": 20
    }, {
        "type": "string",
        "min": 0,
        "max": 10,
    }, {
        "type": "list",
        "list": [
            "table1",
            "table2",
            "table3",
            "table4"
        ]
    }]
}]

The test case file is a standard JSON file which contains an array of test cases. For test cases, field sql is mandatory, and it can optionally include a weight field and an args field which is an array of arguments.

sql is a SQL statement, it can include zero or more arguments (placeholders).

weight defines the possibility of the case being selected, the greater value the higher possibility. It must be an non-negative integer and the default value is zero, but, if all cases have a zero weight, all the weights are regarded as 1.

Placeholders of sql are replaced by arguments in args at runtime. There are 5 types of arguments currently:

• bool: generate a boolean value randomly.
• int: generate an integer between [min, max] randomly, the default value of min is 0 and max is 100.
• range: generate two integers between [min, max] randomly, the first is less than the second, the default value of min is 0 and max is 100.
• string: generate a string with length between [min, max] randomly, the default value of min is 0 and max is 100.
• list: select an item from list randomly.

OUTPUT

 00:00:08 | TOTAL REQ | TOTAL TIME(us) | TOTAL AVG(us) | REQUEST |  TIME(us)  |  AVERAGE(us)  |
    TOTAL |      3027 |       26183890 |       8650.11 |     287 |    3060935 |      10665.28 |
  SUCCESS |      3027 |       26183890 |       8650.11 |     287 |    3060935 |      10665.28 |
     FAIL |         0 |              0 |          0.00 |       0 |          0 |          0.00 |

• Col 2: total number of request since test start.
• Col 3: total time of all request since test start.
• Col 4: average time of all request since test start.
• Col 5: number of request in last second.
• Col 6: time of all request in last second.
• Col 7: average time of all request in last second.