{"id":5177,"date":"2024-11-15T21:41:24","date_gmt":"2024-11-15T13:41:24","guid":{"rendered":"http:\/\/xinblog.ltd\/?p=5177"},"modified":"2024-11-25T21:54:33","modified_gmt":"2024-11-25T13:54:33","slug":"11-superset%e7%9a%84%e6%95%b0%e6%8d%ae%e5%ba%93%e7%89%88%e6%9c%ac%e7%ae%a1%e7%90%86","status":"publish","type":"post","link":"http:\/\/xinblog.ltd\/?p=5177","title":{"rendered":"11.Superset\u7684\u6570\u636e\u5e93\u7248\u672c\u7ba1\u7406"},"content":{"rendered":"

Superset\u7684\u6570\u636e\u5e93\u7248\u672c\u7ba1\u7406<\/p>\n

\u672c\u7ae0\u6211\u4eec\u5c06\u4eceSuperset\u7684\u6570\u636e\u5e93\u7248\u672c\u7ba1\u7406\u4f7f\u7528\uff0c\u5230\u5176\u80cc\u540e\u7684Flask-migrate\u6846\u67b6\u4e3a\u8109\u7edc\uff0c\u8bb2\u8ff0\u6570\u636e\u5e93\u7248\u672c\u7ba1\u7406\u3002<\/p>\n

Superset\u7684\u6570\u636e\u5e93\u7248\u672c\u7ba1\u7406\u4f7f\u7528\u4e86flask-migrate\u4f5c\u4e3a\u7ba1\u7406\u6846\u67b6\u3002<\/p>\n

\u76f8\u5173\u7684\u5165\u95e8\u6307\u5357\u53ef\u4ee5\u53c2\u8003\u5b98\u65b9\u6587\u6863<\/p>\n

https:\/\/flask-migrate.readthedocs.io\/en\/latest\/<\/a><\/p>\n

\u800c\u5728Superset\u4e2d\uff0c\u6211\u4eec\u5728\u7b2c\u4e00\u7ae0\u5b89\u88c5Superset\u7684\u65f6\u5019\uff0c\u66fe\u7ecf\u6267\u884c\u8fc7\u4e00\u4e2a\u547d\u4ee4<\/p>\n

superset db upgrade<\/p>\n

\u8fd9\u4e2a\u547d\u4ee4\u5c31\u662f\u5229\u7528\u5185\u90e8\u5b58\u50a8\u7684\u6570\u636e\u5e93\u7248\u672c\u6587\u4ef6\u8fdb\u884c\u6570\u636e\u5e93\u7248\u672c\u7684\u5e94\u7528<\/p>\n

\u8fd9\u4e2a\u547d\u4ee4\u4f1a\u8bfb\u53d6APP_DIR\/migrations\u6587\u4ef6\u5939\u4e0b\u7684\u6587\u4ef6\uff0c\u5176\u4e0b\u6bcf\u4e2a\u6587\u4ef6\u5185\u90e8\u683c\u5f0f\u4e3a<\/p>\n

\u8fd9\u91cc\u6211\u4eec\u4ee5\u4e00\u4e2a\u5b98\u65b9\u7684migrate\u7ba1\u7406py\u6765\u8fdb\u884c\u8bb2\u89e3<\/p>\n\n\n
“””Add verbose name to DruidCluster and Database<\/p>\n

Revision ID: db527d8c4c78
\nRevises: b318dfe5fb6c
\nCreate Date: 2017-03-16 18:10:57.193035<\/p>\n

“””<\/p>\n

<\/em>
\n # revision identifiers, used by Alembic.<\/p>\n

revision = “db527d8c4c78”<\/p>\n

down_revision = “b318dfe5fb6c”<\/p>\n

import logging<\/p>\n

import sqlalchemy as sa<\/p>\n

from alembic import op<\/p>\n

def upgrade():<\/p>\n

op.add_column(<\/p>\n

“clusters”, sa.Column(“verbose_name”, sa.String(length=250), nullable=True)<\/p>\n

)<\/p>\n

op.add_column(<\/p>\n

“dbs”, sa.Column(“verbose_name”, sa.String(length=250), nullable=True)<\/p>\n

)<\/p>\n

try:<\/p>\n

op.create_unique_constraint(None, “dbs”, [“verbose_name”])<\/p>\n

op.create_unique_constraint(None, “clusters”, [“verbose_name”])<\/p>\n

except Exception:<\/p>\n

logging.info(“Constraint not created, expected when using sqlite”)<\/p>\n

def downgrade():<\/p>\n

try:<\/p>\n

op.drop_column(“dbs”, “verbose_name”)<\/p>\n

op.drop_column(“clusters”, “verbose_name”)<\/p>\n

except Exception as ex:<\/p>\n

logging.exception(ex)<\/td>\n<\/tr>\n<\/table>\n

\u5176\u5728\u6700\u4e0a\u9762\u7684\u6ce8\u89e3\u4e2d\uff0c\u8bf4\u660e\u4e86\u672cpy\u5bf9\u5e94\u7684\u529f\u80fd\uff0c\u4ee5\u53carevision\u7248\u672c<\/p>\n

\u5e76\u4e14class\u4e0a\u8bf4\u660e\u4e86revision\u548cdown_revision<\/p>\n

\u5982\u679c\u66f4\u65b0\u6210\u529f\uff0c\u90a3\u4e48revision\u4f1a\u88ab\u66f4\u65b0\u5230\u6570\u636e\u5e93\u4e2d\u7248\u672c\u7ba1\u7406\u5bf9\u5e94\u7684table\u4f5c\u4e3a\u5f53\u524dvision\u3002\u5982\u679c\u9700\u8981\u56de\u6eda\uff0c\u5219\u4ee5down_revision\u4e3a\u51c6\uff0c\u9700\u8981\u6ce8\u610f\uff0c\u6570\u636e\u5e93\u7248\u672c\u5e94\u8be5\u5982\u540c\u4e00\u4e2aNode\u5b9e\u73b0\u7684\u961f\u5217\uff0c\u4e00\u4e2arevision\u540e\u9762\u53ea\u80fd\u8ddf\u7740\u4e00\u4e2apy\u5c06\u5176\u8bbe\u7f6e\u4e3adown_revision\uff0c\u5982\u679c\u5b58\u5728\u591a\u4e2adown_revision\u6307\u5411\u540c\u4e00\u4e2a\u6570\u636e\u5e93\u7248\u672c\u7ba1\u7406\u6587\u4ef6\uff0c\u5219\u4f1a\u51fa\u73b0upgrade\u62a5\u9519\u7684\u95ee\u9898\u3002<\/p>\n

\u9664\u6b64\u5916\u5c31\u662f\u4e24\u4e2a\u51fd\u6570\uff0cupgrade\u548cdowngrade<\/p>\n

\u5206\u522b\u5bf9\u5e94\u4e86\u5347\u7ea7\u548c\u56de\u6eda\u3002<\/p>\n

\u5728\u672c\u7c7b\u4e4b\u4e2d\uff0c\u5347\u7ea7\u5219\u662f\u7ed9clusters\u548cdbs\u4e24\u4e2a\u8868\u65b0\u589e\u4e86\u4e24\u4e2a\u5b57\u6bb5\u4ee5\u53ca\u521b\u5efa\u4e86\u552f\u4e00\u952e\u7ea6\u675f\u3002<\/p>\n

\u800c\u5728\u56de\u6eda\u51fd\u6570\u4e2d\uff0c\u5219\u662f\u5bf9\u5e94\u7684\u5220\u9664\u64cd\u4f5c\u3002<\/p>\n

\u90a3\u4e48\u5728\u58f0\u660e\u4e86\u76f8\u5173\u7684py\u6587\u4ef6\u4e4b\u540e\uff0c\u53ea\u9700\u8981superset db upgrade\u5373\u53ef\u3002<\/p>\n

\u8fd9\u4e00\u547d\u4ee4\u5728helm\u4e2d\u7684values.yaml\u4e5f\u53ef\u4ee5\u770b\u89c1<\/p>\n\n\n
\n initscript: |-<\/p>\n

#!\/bin\/sh<\/p>\n

set -eu<\/p>\n

echo “Upgrading DB schema…”<\/p>\n

superset db upgrade<\/td>\n<\/tr>\n<\/table>\n

\u5982\u679c\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u7ed9\u6570\u636e\u5e93\u4e2d\u65b0\u589e\u4e86\u67d0\u4e9b\u8868\u6216\u67d0\u4e9b\u5b57\u6bb5\uff0c\u90a3\u4e48\u53ea\u9700\u8981\u6267\u884c<\/p>\n

superset db migrate\uff0c\u5c31\u4f1a\u5728migrations\u6587\u4ef6\u5939\u4e0b\u65b0\u589e\u4e00\u4e2apy\u6587\u4ef6\uff0c\u683c\u5f0f\u5982\u540c\u4e0a\u9762\u7684\u4e00\u6837\u3002<\/p>\n

\u90a3\u4e48\u5230\u4e86\u8fd9\u91cc\uff0c\u57fa\u672c\u4e0a\u5c31\u5c31\u662fSuperset\u4e2d\u5173\u4e8edb migrate\u7684\u4f7f\u7528\uff0c\u8fd9\u6837\u6211\u4eec\u5229\u7528\u5bf9\u5e94py\u6587\u4ef6\u8fdb\u884c\u4e86\u7ba1\u7406\u3002<\/p>\n

\u63a5\u4e0b\u6765\u6211\u4eec\u770b\u4e0b\uff0cSuperset\u662f\u5982\u4f55\u96c6\u6210migrate\u6846\u67b6\u7684\u3002<\/p>\n

\u9996\u5148\uff0c\u5982\u679c\u5e0c\u671b\u4f7f\u7528migrate\u6846\u67b6\u7684\u8bdd\uff0c\u9700\u8981\u5229\u7528\u5230SQLAlchemy\u7684\u5bf9\u8c61\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u8fd9\u4e00\u70b9\uff0c\u5728Superset init_app\u7684\u65f6\u5019\u5c31\u6709\u4f53\u73b0\u3002<\/p>\n

\u5728\u521d\u59cb\u5316\u76f8\u5173\u7684init_app\u51fd\u6570\u4e2dsetup_db\u51fd\u6570\u91cc<\/p>\n\n\n
\n def setup_db(self) -> None:<\/p>\n

db.init_app(self.superset_app)<\/p>\n

with self.superset_app.app_context():<\/p>\n

pessimistic_connection_handling(db.engine)<\/p>\n

migrate.init_app(self.superset_app, db=db, directory=APP_DIR + “\/migrations”)<\/td>\n<\/tr>\n<\/table>\n

\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0cSuperset\u5728\u521d\u59cb\u5316\u4e4b\u521d\uff0c\u8fdb\u884c\u4e86migrate\u6846\u67b6\u7684\u521d\u59cb\u5316\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

Superset\u7684\u6570\u636e\u5e93\u7248\u672c\u7ba1 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[],"_links":{"self":[{"href":"http:\/\/xinblog.ltd\/index.php?rest_route=\/wp\/v2\/posts\/5177"}],"collection":[{"href":"http:\/\/xinblog.ltd\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/xinblog.ltd\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/xinblog.ltd\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/xinblog.ltd\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5177"}],"version-history":[{"count":1,"href":"http:\/\/xinblog.ltd\/index.php?rest_route=\/wp\/v2\/posts\/5177\/revisions"}],"predecessor-version":[{"id":5178,"href":"http:\/\/xinblog.ltd\/index.php?rest_route=\/wp\/v2\/posts\/5177\/revisions\/5178"}],"wp:attachment":[{"href":"http:\/\/xinblog.ltd\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5177"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/xinblog.ltd\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5177"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/xinblog.ltd\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}