From b46f45569ee5b1b91c61f61129c19ff4544918a1 Mon Sep 17 00:00:00 2001
From: dami <midoks@163.com>
Date: Mon, 6 Jul 2026 20:01:23 +0800
Subject: [PATCH] Update tool_migrate.py

---
 plugins/webstats/tool_migrate.py | 51 +++++++++++++++++++++++-----------------
 1 file changed, 29 insertions(+), 22 deletions(-)

diff --git a/plugins/webstats/tool_migrate.py b/plugins/webstats/tool_migrate.py
index 2e0d1981a..b960fd363 100644
--- a/plugins/webstats/tool_migrate.py
+++ b/plugins/webstats/tool_migrate.py
@@ -70,6 +70,23 @@ def pSqliteDb(dbname='web_logs', site_name='unset', fn="logs"):
     return conn
 
 
+def batch_delete(conn, table, where_clause, batch_size=5000, pause_sec=0.05):
+    """分批删除，缩短单次持锁时间，WAL 模式下可与 OpenResty 并发写入。"""
+    total = 0
+    while True:
+        sql = (
+            f"DELETE FROM {table} WHERE rowid IN "
+            f"(SELECT rowid FROM {table} WHERE {where_clause} LIMIT {batch_size})"
+        )
+        affected = conn.execute(sql)
+        if not isinstance(affected, int) or affected == 0:
+            break
+        total += affected
+        if pause_sec > 0:
+            time.sleep(pause_sec)
+    return total
+
+
 def migrateSiteHotLogs(site_name, query_date):
     start_time = time.time()
     print(f"[{site_name}] 开始迁移日志...")
@@ -164,39 +181,29 @@ def migrateSiteHotLogs(site_name, query_date):
         print(f"[{site_name}] logs to history error: {e}")
         return mw.returnMsg(False, f"{site_name} logs migrate error: {e}")
 
-    # 3. 删除已迁移的数据并清理统计（仅 DELETE/VACUUM 期间互斥）
+    # 3. 分批删除已迁移的热日志并清理统计（不设 migrating 锁，不阻塞 OpenResty 写入）
     try:
-        mw.writeFile(migrating_flag, "yes")
-        time.sleep(1)
-
         hot_db_conn = pSqliteDb('web_logs', site_name)
+        hot_db_conn.execute("PRAGMA busy_timeout = 30000")
 
-        # 分批删除热日志
-        del_hot_log = f"delete from web_logs where time<{todayUt}"
-        print(f"[{site_name}] 删除已迁移的热日志...")
-        hot_db_conn.execute(del_hot_log)
+        print(f"[{site_name}] 分批删除已迁移的热日志...")
+        deleted = batch_delete(hot_db_conn, 'web_logs', f"time<{todayUt}")
+        print(f"[{site_name}] 已删除 {deleted} 条热日志")
 
-        # 删除过期统计数据
-        print(f"[{site_name}] 删除180天前的统计数据...")
+        print(f"[{site_name}] 分批删除180天前的统计数据...")
         save_time_key = time.strftime(
             '%Y%m%d00', time.localtime(time.time() - 180 * 86400))
+        stat_where = f"time<='{save_time_key}'"
+        for stat_table in ('request_stat', 'spider_stat', 'client_stat', 'referer_stat'):
+            stat_deleted = batch_delete(hot_db_conn, stat_table, stat_where)
+            print(f"[{site_name}] {stat_table} 已删除 {stat_deleted} 条")
 
-        del_request_stat_sql = f"delete from request_stat where time<={save_time_key}"
-        hot_db_conn.execute(del_request_stat_sql)
-        hot_db_conn.execute(f"delete from spider_stat where time<={save_time_key}")
-        hot_db_conn.execute(f"delete from client_stat where time<={save_time_key}")
-        hot_db_conn.execute(f"delete from referer_stat where time<={save_time_key}")
-
-        hot_db_conn.commit()
-        print(f"[{site_name}] 压缩热数据库...")
-        hot_db_conn.execute("VACUUM;")
-        hot_db_conn.commit()
+        print(f"[{site_name}] 执行 WAL checkpoint...")
+        hot_db_conn.execute("PRAGMA wal_checkpoint(TRUNCATE)")
 
     except Exception as e:
         print(f"[{site_name}] delete hot logs error: {e}")
     finally:
-        if os.path.exists(migrating_flag):
-            os.remove(migrating_flag)
         if os.path.exists(hot_db_tmp):
             os.remove(hot_db_tmp)