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[backend] make sure redis consumer group exist #1684

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merged 2 commits into from
May 16, 2023
Merged

[backend] make sure redis consumer group exist #1684

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ec6db95
[backend] make sure redis consumer group exist
IJtLJZ8Rm4Yr May 15, 2023
ea8056e
Merge branch 'master' into hotfix
IJtLJZ8Rm4Yr May 16, 2023
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6 changes: 6 additions & 0 deletions ymir/backend/src/ymir_app/app/libs/redis_stream.py
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,12 @@ async def init_group_and_stream(self) -> None:
if not exists:
logger.info("init redis stream and consumer group")
await self._conn.xgroup_create(name=self.stream_name, groupname=self.group_name, mkstream=True)
else:
groups = await self._conn.xinfo_groups(self.stream_name)
if not any(group["name"] == self.group_name for group in groups):
logger.info("init consumer group on existing stream")
# set id = '0' to make sure this new consumer group will catch up existing messages in stream
await self._conn.xgroup_create(name=self.stream_name, groupname=self.group_name, id="0")

async def connect(self) -> None:
self._conn = await redis.from_url(self.redis_uri, decode_responses=True)
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