ืจืืื ืืฉืชืืฉืื ืืืืื ืืืืืืื ืืื ืืืฆืืจ ื ืืืื ืืืืืืฅ, ืืจื ืกืคืืจืืฆืื ืืืขืื ืช ื ืชืื ืื ืืชืื ืืกืื ื ืชืื ืื ืืืกืืื. ืชืืืื ืืขืืืื ืฉื ืืื ืืขืืืื ื ืจืฉื, ืฉืืืืืช ืืชืืงื ืืช.
ืืืงืจื ืฉื ืฉืืืื, ืืืืื ืืืื ืืืืข ืฉืืืื ืื ืืฆืืื ืืืฉืืื ืืช ืืืฉืืื ืืืืื ืืืืืืื (ืืขืืชืื ืงืจืืืืช Java) ืขืฆืจื ืืืื. ืืฉืืจืืช ืืืืจืื ืืช, ื ืืชื ืืืฆืื ืฉืืืืช ืืกื ื ืชืื ืื, ืืืฉื, ืืคืจืช ืืคืชื ืืืืืื ืืืืื.
ืืื ืืขื ืืช ืขื ืืฉืืื ืืืื ืชืคืงืื ืืืื ืืืืข ืฉืืืืืช ETL, ืกืืืืืชื ืืช ืื ืืืขืืืช ืฉืืชืจืืฉื ืืืืื ืืฉื ืชืืื ืืืืจืื ืืช ืืืืืจ ืื ืืืื.
ืฉืืืืืช ืืกื ื ืชืื ืื ืืืืืืช ืื ืืกืคืืง ืืงืื, ืืืืืจ ืฉืืื, ืกืฉื ื ืชืงืข ืืื'.
ืฉืืืืืช ืืืืืืช ืืืืืืช ืืืื ืืคืจื ืฉื ืืคืชืืืช ืืืื, ืืืืืืงืืื ืื ืืืงืืื, ืืืกืจ ืืืฉื ืืืืืืืงืืื ืืื'.
ืืืชืื ืฉืืืชืืื ืื ืืชืืื ืืืื, ืืื ืขืืื ืืงืคืื ืืื'.
ืืขืืืืช ืคืฉืืืืช ืื ืืืงื ืืจืื ืืื ืืชืงื. ETL ืืื ืืืื ืืืชืืืื ืขื ืจืืื ืืขืฆืื.
ืืืืื ืืืจืืืื ืืืืืืื ืืืืืช ืืืืืืง ื ืืืื ืืขืืืื ืขื ื ืชืื ืื, ืืืงืืจ ืืงืืจืืช ื ืชืื ืื. ืืขืชืื ืงืจืืืืช ืืืืืืื ืืฆืืจื ืืืืืงืืช ืืคืจืืกื ืฉื ืฉืื ืืืื.
ืื, ืืืฆืืช ืืื ืืืขืืืช ืงืฉืืจืืช ืืืกื ืื ืชืื ืื. 48% ืืื ืืืขืืืืช ืื ืืขืืืืช ืคืฉืืืืช.
ืฉืืืฉ ืืื ืืืขืืืช ืงืฉืืจืืช ืืฉืื ืื ืืืืืงื ืื ืืืื ืืืืกืื, ืืืชืจ ืืืืฆืืช ืืืฉืืืืืช ืืืื ืืืจืืืืช.
ืืคืืืช ืืจืืข ืืื ืืืขืืืช ืงืฉืืจืืช ืืืชืืื ืืืฉืืืืช, 18% ืืื ืื ืฉืืืืืช ืคืฉืืืืช.
ืืืืคื ืืืื, 22% ืืืื ืืฉืืืืืช ืืืชืจืืฉืืช ืื ืืืจืืืืช, ืืชืืงืื ื ืืืจืฉ ืืช ืืืจื ืชืฉืืืช ืืื ืืืืื. ืื ืงืืจืื ืืขืจื ืคืขื ืืฉืืืข. ืืืืื ืืขืืืืช ืคืฉืืืืช ืงืืจืืช ืืืขื ืื ืืื.
ืืจืืจ, ื ืืืืจ ืชืืืืื ETL ืืืื ืืขืื ืืืฉืจ ืืืงืื ืืฉืืืื ืืฆืืื ืืืืื ืืฆืืจื ืืืืืงืช ืืื ืืืคืฉืจ ืื ืืจืฉ ืืืื ืืืื ืืืื ืืื ืืืฆืื ืืช ืืงืืจ ืืืขืื.
ื ืืืืจ ืืขืื
ืื ืจืฆืืชื ืืจืืืช ืืชืืืื ื ืืืืจ ETL?
ืืชืื ื - ืืฉืืื ืืชืืื ืืขืืื,
ืืงืืจ - ืืงืืจ ื ืชืื ืื,
ืฉืืื - ืืืื ืจืืช ืืืกืื ื ืืขื,
ืฉื ืขืืืื ETL - ืืืื ืืขืืื, ืืืืจืื ืืืจืื ืฉืืืื ืงืื ืื,
ืืกืคืจ ืฆืขื - ืืกืคืจ ืืฆืขื ืืืชืืฆืข,
ืฉืืจืืช ืืืฉืคืขืืช - ืืื ื ืชืื ืื ืืืจ ืขืืืื,
ืืฉื ืฉื ืื - ืืื ืืื ืื ืืืงื,
ืกืืืืก - ืื ืืื ืืกืืจ ืื ืื: ืืกืืจ, ืฉืืืื, ืจืืฆื, ื ืชืงืข
ืืืืขื - ืืืืขื ืืืฆืืืช ืืืจืื ื ืื ืชืืืืจ ืฉืืืื.
ืืืชืืกืก ืขื ืืฆื ืืขืจืืื, ื ืืชื ืืฉืืื ืืืื. ืืืชื ืืืืจืื ืืืจืื. ืื ืืื ืฉืืืืืช, ืื ืืืืชื ืืื ื ืืืจืื.
ืื, ืืืงืจื ืฉื ืืขืืช, ืืฆืืื ืืืงืื ืืืืจืืข ืืฆืืจื ืืจืืจื.
ืืคืขืืื ืงืืจื ืฉืืื ืื ืืืืจ ืขืฆืื ืื ืขืืื. ืืืงืจื ืื, ื ืืชื ืืงืจืื ื-view (view) ืืฉืืจืืช ืืืกื ืื ืชืื ืื ืฉืขื ืืกืืกื ื ืื ื ืืืื.
ืืืืช ื ืืืืจ ETL
ืืื ืืืืฉื ื ืืืืจ ืฉื ืชืืืืื ETL, ืืกืคืืงืื ืืืื ืืืช ืืชืฆืืื ืืืช.
ืืื ืืขืฉืืช ืืืช, ืืชื ืืืื ืืืืืจ ืื
ืืืืืืช DDL
CREATE TABLE UTL_JOB_STATUS (
/* Table for logging of job execution log. Important that the job has the steps ETL_START and ETL_END or ETL_ERROR */
UTL_JOB_STATUS_ID INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
SID INTEGER NOT NULL DEFAULT -1, /* Session Identificator. Unique for every Run of job */
LOG_DT INTEGER NOT NULL DEFAULT 0, /* Date time */
LOG_D INTEGER NOT NULL DEFAULT 0, /* Date */
JOB_NAME TEXT NOT NULL DEFAULT 'N/A', /* Job name like JOB_STG2DM_GEO */
STEP_NAME TEXT NOT NULL DEFAULT 'N/A', /* ETL_START, ... , ETL_END/ETL_ERROR */
STEP_DESCR TEXT, /* Description of task or error message */
UNIQUE (SID, JOB_NAME, STEP_NAME)
);
INSERT INTO UTL_JOB_STATUS (UTL_JOB_STATUS_ID) VALUES (-1);
ืืฆื/ืืืื ืขื DDL
CREATE VIEW IF NOT EXISTS UTL_JOB_STATUS_V
AS /* Content: Package Execution Log for last 3 Months. */
WITH SRC AS (
SELECT LOG_D,
LOG_DT,
UTL_JOB_STATUS_ID,
SID,
CASE WHEN INSTR(JOB_NAME, 'FTP') THEN 'TRANSFER' /* file transfer */
WHEN INSTR(JOB_NAME, 'STG') THEN 'STAGE' /* stage */
WHEN INSTR(JOB_NAME, 'CLS') THEN 'CLEANSING' /* cleansing */
WHEN INSTR(JOB_NAME, 'DIM') THEN 'DIMENSION' /* dimension */
WHEN INSTR(JOB_NAME, 'FCT') THEN 'FACT' /* fact */
WHEN INSTR(JOB_NAME, 'ETL') THEN 'STAGE-MART' /* data mart */
WHEN INSTR(JOB_NAME, 'RPT') THEN 'REPORT' /* report */
ELSE 'N/A' END AS LAYER,
CASE WHEN INSTR(JOB_NAME, 'ACCESS') THEN 'ACCESS LOG' /* source */
WHEN INSTR(JOB_NAME, 'MASTER') THEN 'MASTER DATA' /* source */
WHEN INSTR(JOB_NAME, 'AD-HOC') THEN 'AD-HOC' /* source */
ELSE 'N/A' END AS SOURCE,
JOB_NAME,
STEP_NAME,
CASE WHEN STEP_NAME='ETL_START' THEN 1 ELSE 0 END AS START_FLAG,
CASE WHEN STEP_NAME='ETL_END' THEN 1 ELSE 0 END AS END_FLAG,
CASE WHEN STEP_NAME='ETL_ERROR' THEN 1 ELSE 0 END AS ERROR_FLAG,
STEP_NAME || ' : ' || STEP_DESCR AS STEP_LOG,
SUBSTR( SUBSTR(STEP_DESCR, INSTR(STEP_DESCR, '***')+4), 1, INSTR(SUBSTR(STEP_DESCR, INSTR(STEP_DESCR, '***')+4), '***')-2 ) AS AFFECTED_ROWS
FROM UTL_JOB_STATUS
WHERE datetime(LOG_D, 'unixepoch') >= date('now', 'start of month', '-3 month')
)
SELECT JB.SID,
JB.MIN_LOG_DT AS START_DT,
strftime('%d.%m.%Y %H:%M', datetime(JB.MIN_LOG_DT, 'unixepoch')) AS LOG_DT,
JB.SOURCE,
JB.LAYER,
JB.JOB_NAME,
CASE
WHEN JB.ERROR_FLAG = 1 THEN 'ERROR'
WHEN JB.ERROR_FLAG = 0 AND JB.END_FLAG = 0 AND strftime('%s','now') - JB.MIN_LOG_DT > 0.5*60*60 THEN 'HANGS' /* half an hour */
WHEN JB.ERROR_FLAG = 0 AND JB.END_FLAG = 0 THEN 'RUNNING'
ELSE 'OK'
END AS STATUS,
ERR.STEP_LOG AS STEP_LOG,
JB.CNT AS STEP_CNT,
JB.AFFECTED_ROWS AS AFFECTED_ROWS,
strftime('%d.%m.%Y %H:%M', datetime(JB.MIN_LOG_DT, 'unixepoch')) AS JOB_START_DT,
strftime('%d.%m.%Y %H:%M', datetime(JB.MAX_LOG_DT, 'unixepoch')) AS JOB_END_DT,
JB.MAX_LOG_DT - JB.MIN_LOG_DT AS JOB_DURATION_SEC
FROM
( SELECT SID, SOURCE, LAYER, JOB_NAME,
MAX(UTL_JOB_STATUS_ID) AS UTL_JOB_STATUS_ID,
MAX(START_FLAG) AS START_FLAG,
MAX(END_FLAG) AS END_FLAG,
MAX(ERROR_FLAG) AS ERROR_FLAG,
MIN(LOG_DT) AS MIN_LOG_DT,
MAX(LOG_DT) AS MAX_LOG_DT,
SUM(1) AS CNT,
SUM(IFNULL(AFFECTED_ROWS, 0)) AS AFFECTED_ROWS
FROM SRC
GROUP BY SID, SOURCE, LAYER, JOB_NAME
) JB,
( SELECT UTL_JOB_STATUS_ID, SID, JOB_NAME, STEP_LOG
FROM SRC
WHERE 1 = 1
) ERR
WHERE 1 = 1
AND JB.SID = ERR.SID
AND JB.JOB_NAME = ERR.JOB_NAME
AND JB.UTL_JOB_STATUS_ID = ERR.UTL_JOB_STATUS_ID
ORDER BY JB.MIN_LOG_DT DESC, JB.SID DESC, JB.SOURCE;
SQL ืืืืง ืื ืืคืฉืจ ืืงืื ืืกืคืจ ืืคืขืื ืืืฉ
SELECT SUM (
CASE WHEN start_job.JOB_NAME IS NOT NULL AND end_job.JOB_NAME IS NULL /* existed job finished */
AND NOT ( 'y' = 'n' ) /* force restart PARAMETER */
THEN 1 ELSE 0
END ) AS IS_RUNNING
FROM
( SELECT 1 AS dummy FROM UTL_JOB_STATUS WHERE sid = -1) d_job
LEFT OUTER JOIN
( SELECT JOB_NAME, SID, 1 AS dummy
FROM UTL_JOB_STATUS
WHERE JOB_NAME = 'RPT_ACCESS_LOG' /* job name PARAMETER */
AND STEP_NAME = 'ETL_START'
GROUP BY JOB_NAME, SID
) start_job /* starts */
ON d_job.dummy = start_job.dummy
LEFT OUTER JOIN
( SELECT JOB_NAME, SID
FROM UTL_JOB_STATUS
WHERE JOB_NAME = 'RPT_ACCESS_LOG' /* job name PARAMETER */
AND STEP_NAME in ('ETL_END', 'ETL_ERROR') /* stop status */
GROUP BY JOB_NAME, SID
) end_job /* ends */
ON start_job.JOB_NAME = end_job.JOB_NAME
AND start_job.SID = end_job.SID
ืชืืื ืืช ืืืืื:
- ืืฉ ืืืฆืข ืืช ืืืชืืื ืืืกืืฃ ืฉื ืืืื ืขืืืื ืื ืชืื ืื ืขื ืืื ืืฉืืืื ETL_START ื-ETL_END
- ืืืงืจื ืฉื ืฉืืืื, ืืฉ ืืืฆืืจ ืืช ืืฉืื ETL_ERROR ืขื ืืชืืืืจ ืฉืื
- ืืฉ ืืืืืืฉ ืืช ืืืืช ืื ืชืื ืื ืืืขืืืืื, ืืืฉื, ืืืืืืืืช
- ื ืืชื ืืืชืืื ืืช ืืืชื ืืืื ืื-ืืื ืืช ืขื ืืคืจืืืจ force_restart=y, ืืืขืืื ืืกืคืจ ืืคืืืฉื ืืื ืคืง ืจืง ืืืืื ืฉืืืฉืื
- ืืืฆื ืจืืื, ืื ื ืืชื ืืืคืขืื ืืช ืืืชื ืืืื ืขืืืื ื ืชืื ืื ืืืงืืื
ืืคืขืืืืช ืืืจืืฉืืช ืืขืืืื ืขื ืืืื ืื ืืืืงืื:
- ืงืืืช ืืกืคืจ ืืคืืืฉื ืฉื ืืืื ื-ETL ืืคืืขื
- ืืืกืฃ ืจืืฉืื ืืืื ืืืืื
- ืงืืืช ืืจืฉืืื ืืืืฆืืืช ืืืืจืื ื ืฉื ืืืื ETL
ืืืกืืกื ื ืชืื ืื ืืืื Oracle ืื Postgres, ื ืืชื ืืืืฉื ืืช ืืคืขืืืืช ืืืื ืืคืื ืงืฆืืืช ืืืื ืืช. sqlite ืืืจืฉ ืื ืื ืื ืืืฆืื ื, ืืืืงืจื ืื ืืื
ืคืื
ืืคืืื, ืืืืขืืช ืฉืืืื ืืืืื ืืขืืืื ื ืชืื ืื ืืืืืืช ืชืคืงืื ืืื-ืืฉืื. ืืื ืงืฉื ืืงืจืื ืืื ืืืคืืืืืืื ืืืืชืืจ ืืืืจ ืฉื ืืืืจื ืืืขืื. ืืืฉืจ ืืกืคืจ ืืืืืืื ืืชืงืจื ืืืื, ืื ื ืืืืจ ืชืืืืืื ืืืคื ืืคืจืืืงื ืืืจืื.
ืืืืืจ ืืกืคืง ืืืืื ืืคืชืจืื ืืคืฉืจื ืืืขืื ืืฆืืจื ืฉื ืื ืืืคืืก. ืื ืื ืืืืคืืก ืฉื ืืืืืจ ืืงืื ืืืื ื-gitlab
ืืงืืจ: www.habr.com