1e370dc9
 tangwang
1. 翻译性能优化
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#!/usr/bin/env python3
"""
Purge Redis caches used by this repo (exclude trans:deepl*).
Default behavior (db=0):
- Delete embedding cache keys: {embedding_cache_prefix}:*
(includes :image: and :clip_text: namespaces)
- Delete legacy embedding keys: embed:* (older deployments wrote raw logical keys)
- Delete anchors cache keys: {anchor_cache_prefix}:*
- Delete translation cache keys: trans:* EXCEPT those starting with "trans:deepl"
Usage:
source activate.sh
python scripts/redis/purge_caches.py --dry-run
python scripts/redis/purge_caches.py
python scripts/redis/purge_caches.py --db 1
"""
from __future__ import annotations
import argparse
import sys
from pathlib import Path
from typing import Iterable, List, Optional
import redis
PROJECT_ROOT = Path(__file__).parent.parent.parent
sys.path.insert(0, str(PROJECT_ROOT))
from config.env_config import REDIS_CONFIG # type: ignore
def get_redis_client(db: int) -> redis.Redis:
return redis.Redis(
host=REDIS_CONFIG.get("host", "localhost"),
port=REDIS_CONFIG.get("port", 6479),
password=REDIS_CONFIG.get("password"),
db=db,
decode_responses=True,
socket_timeout=10,
socket_connect_timeout=10,
)
def iter_scan_keys(client: redis.Redis, pattern: str, scan_count: int = 2000) -> Iterable[str]:
cursor = 0
while True:
cursor, batch = client.scan(cursor=cursor, match=pattern, count=scan_count)
for k in batch:
yield k
if cursor == 0:
break
def delete_keys(
*,
client: redis.Redis,
keys: Iterable[str],
dry_run: bool,
batch_size: int = 1000,
) -> int:
deleted = 0
buf: List[str] = []
def flush() -> int:
nonlocal buf
if not buf:
return 0
if dry_run:
n = len(buf)
buf = []
return n
pipe = client.pipeline(transaction=False)
for k in buf:
pipe.delete(k)
results = pipe.execute()
n = int(sum(1 for r in results if isinstance(r, int) and r > 0))
buf = []
return n
for k in keys:
buf.append(k)
if len(buf) >= batch_size:
deleted += flush()
deleted += flush()
return deleted
def build_tasks(
*,
embedding_prefix: str,
anchor_prefix: str,
keep_translation_prefix: str,
include_translation: bool,
) -> List[dict]:
tasks = [
{"name": "embedding", "pattern": f"{embedding_prefix}:*", "exclude_prefix": None},
{"name": "embedding_legacy_embed", "pattern": "embed:*", "exclude_prefix": None},
{"name": "anchors", "pattern": f"{anchor_prefix}:*", "exclude_prefix": None},
]
if include_translation:
tasks.append(
{
"name": "translation",
"pattern": "trans:*",
"exclude_prefix": keep_translation_prefix,
}
)
return tasks
def main() -> None:
parser = argparse.ArgumentParser(description="Purge Redis caches (skip trans:deepl*)")
parser.add_argument("--db", type=int, default=0, help="Redis database number (default: 0)")
parser.add_argument("--dry-run", action="store_true", help="Only count keys; do not delete")
parser.add_argument(
"--include-translation",
action="store_true",
default=True,
help="Also purge translation cache (default: true)",
)
parser.add_argument(
"--no-translation",
dest="include_translation",
action="store_false",
help="Do not purge translation cache",
)
parser.add_argument(
"--keep-translation-prefix",
type=str,
default="trans:deepl",
help='Do not delete translation keys starting with this prefix (default: "trans:deepl")',
)
parser.add_argument(
"--embedding-prefix",
type=str,
default=str(REDIS_CONFIG.get("embedding_cache_prefix", "embedding")),
help='Embedding cache prefix (default from REDIS_CONFIG["embedding_cache_prefix"])',
)
parser.add_argument(
"--anchor-prefix",
type=str,
default=str(REDIS_CONFIG.get("anchor_cache_prefix", "product_anchors")),
help='Anchors cache prefix (default from REDIS_CONFIG["anchor_cache_prefix"])',
)
parser.add_argument("--batch-size", type=int, default=1000, help="DEL pipeline batch size")
args = parser.parse_args()
client = get_redis_client(db=args.db)
client.ping()
tasks = build_tasks(
embedding_prefix=args.embedding_prefix,
anchor_prefix=args.anchor_prefix,
keep_translation_prefix=args.keep_translation_prefix,
include_translation=args.include_translation,
)
total_matched = 0
total_deleted = 0
for t in tasks:
pattern: str = t["pattern"]
exclude_prefix: Optional[str] = t["exclude_prefix"]
def filtered_keys() -> Iterable[str]:
for k in iter_scan_keys(client, pattern=pattern):
if exclude_prefix and k.startswith(exclude_prefix):
continue
yield k
n = delete_keys(
client=client,
keys=filtered_keys(),
dry_run=args.dry_run,
batch_size=args.batch_size,
)
total_matched += n
if not args.dry_run:
total_deleted += n
action = "would delete" if args.dry_run else "deleted"
print(f"[{t['name']}] pattern={pattern} exclude_prefix={exclude_prefix!r} -> {action} {n:,} keys")
if args.dry_run:
print(f"\nDry run complete. Total keys that would be deleted: {total_matched:,}")
else:
print(f"\nPurge complete. Total keys deleted: {total_deleted:,}")
if __name__ == "__main__":
main()
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