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使用当前仓库的脚本执行华为云 DRS MySQL 并行迁移，覆盖环境校验、任务创建、预检查、启动同步、监控、切换前检查、切换后校验与回滚计划。
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| name | drs-mysql-parallel-migration |
| description | 使用当前仓库的脚本执行华为云 DRS MySQL 并行迁移，覆盖环境校验、任务创建、预检查、启动同步、监控、切换前检查、切换后校验与回滚计划。 |
scripts/00-11 自动化脚本执行或续跑 MySQL DRS 迁移。approvals/APPROVED_CREATE_DRS_JOBapprovals/APPROVED_START_DRS_JOBapprovals/APPROVED_CUTOVERconfigs/migration.yaml.env（不提交）scripts/00_env_check.sh 到 scripts/11_post_cutover_validate.pyscripts/99_rollback_plan.pyapprovals/reports/logs/cd /root/ai_assit_migration/ai_assist_rds_migration/parallel_runs/db2
export MIGRATION_BASE_DIR=/root/ai_assit_migration/ai_assist_rds_migration/parallel_runs/db2
.env（仅在当前会话）。set -a
source .env
set +a
00_env_check.sh 会校验）：HW_ACCESS_KEY HW_SECRET_KEY HW_PROJECT_ID HW_REGIONSRC_DB_HOST SRC_DB_PORT SRC_DB_USER SRC_DB_PASSWORDTGT_DB_HOST TGT_DB_PORT TGT_DB_USER TGT_DB_PASSWORDDRY_RUN=false 执行真实操作（默认 true）SKIP_DB_TCP_CHECK=true 跳过执行机到 DB 的直连探测ALLOW_DRS_ONLY_PRECHECK=true 允许在执行机无法直连 DB 时，仅依赖 DRS 连通性测试和 DRS 预检查作为硬门禁按顺序执行：
bash scripts/00_env_check.sh
python3 scripts/01_db_precheck.py
python3 scripts/02_generate_drs_payload.py
touch approvals/APPROVED_CREATE_DRS_JOB
python3 scripts/03_create_drs_job.py
python3 scripts/04_wait_drs_job_ready.py
python3 scripts/05_test_connection.py
python3 scripts/06_run_precheck.py
touch approvals/APPROVED_START_DRS_JOB
python3 scripts/07_start_migration.py
python3 scripts/08_monitor_migration.py
切换窗口前后补充：
python3 scripts/09_create_compare_task.py
touch approvals/APPROVED_CUTOVER
python3 scripts/10_cutover_check.py
python3 scripts/11_post_cutover_validate.py
python3 scripts/99_rollback_plan.py
00_env_check.sh -> reports/env_check_report.json
status=SUCCESS，且必填 env 变量均为 SET01_db_precheck.py -> reports/db_precheck.json
status in [SUCCESS, WARNING]（若启用 DRS-only 模式）02_generate_drs_payload.py -> reports/drs_payload.json
status=SUCCESS 且包含 base_info/source_endpoint/target_endpoint/node_info03_create_drs_job.py -> reports/drs_job_create_report.json
status=SUCCESS 且有 details.job_id04_wait_drs_job_ready.py -> reports/drs_job_status_report.json
status=SUCCESS 且任务状态进入 CONFIGURATION 或 WAITING_FOR_START05_test_connection.py -> reports/connection_test_report.json
status=SUCCESS（源/目标连接测试均成功）06_run_precheck.py -> reports/precheck_report.json
status in [SUCCESS, WARNING]，且无 FAIL 项07_start_migration.py -> reports/migration_start_report.json
status=SUCCESS08_monitor_migration.py -> reports/migration_status_report.json
details.final_status=INCR_TRANS09_create_compare_task.py -> reports/compare_report.json
status=SUCCESS，至少拿到可解析的 compare 结果10_cutover_check.py -> reports/cutover_check_report.json
cutover_ready=true11_post_cutover_validate.py -> reports/cutover_validation_report.json
status in [SUCCESS, WARNING]（WARNING 需要业务确认）99_rollback_plan.py -> reports/rollback_plan.json + reports/risk_list.json
reports/migration_report.json 的最后阶段和 job_id。drs_job_create_report.json 且包含 job_id，跳过 02/03。migration_start_report.json 已成功，跳过 07。migration_status_report.json 已是 INCR_TRANS，跳过 08，直接进入 09/10/11。reports/*.json 的 errors，再看 logs/<step>_*.log 最新文件。job_id=23839644-0b92-404d-9655-e2ece0ejb101。WARNING（存在磁盘容量告警）。INCR_TRANS，增量延迟为 0 秒。compare_report 为 WARNING（未返回 compare task id），cutover_check_report 为 FAILED（compare 结果缺失且未提供 APPROVED_CUTOVER）。HostUnreachableException / Name or service not known
db_precheck 无法直连数据库
ALLOW_DRS_ONLY_PRECHECK=true，并以 05/06 结果作为硬门禁。wait_drs_job_ready 超时
drs_job_create_report.json 的 job_id 仍有效，再单独重跑 04。compare_report 无任务 ID
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