wangyufan

Compaction cause data loss when using snapshot.

1

> Note: Please use Issues only for bug reports. For questions, discussions, feature requests, etc. post to dev group: https://groups.google.com/forum/#!forum/rocksdb or https://www.facebook.com/groups/rocksdb.dev Use `6.27.3` in `Java` through `JNI` Currently, we...

Follower节点Read-Index频繁超时，Leader节点正常

7

### Your question 当程序并发调用Leader/Follower全部节点线性一致性读查询接口时，发现Follower节点Read-Index读会频繁超时，而Leader节点不会出现该问题。 异常堆栈如下 ``` 2022-06-30 14:42:18 [read-index.timeout.scanner0] WARN... ... at com.alipay.sofa.jraft.closure.ReadIndexClosure$TimeoutTask.run(ReadIndexClosure.java:153) [xxx-SNAPSHOT.jar:?] at com.alipay.sofa.jraft.util.timer.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:609) [xxx-SNAPSHOT.jar:?] at com.alipay.sofa.jraft.util.timer.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:677) [xxx-SNAPSHOT.jar:?] at com.alipay.sofa.jraft.util.timer.HashedWheelTimer$Worker.run(HashedWheelTimer.java:395) [xxx-SNAPSHOT.jar:?] at java.lang.Thread.run(Thread.java:834) [?:?] ``` 状态机使用RocksDB实现，观察实际执行Get操作Latency不高，且同样的查询Leader不会报错，推测问题出现在JRaft层。 阅读代码发现Follower read-index行为和Leader不同，Read-Index时Follower需要从Leader...

### Search before asking - [X] I had searched in the [issues](https://github.com/datafuselabs/databend/issues) and found no similar issues. ### Version 1.2.174 ### What's Wrong? The `REPLACE` statement can't load data with...

**Summary** - About Databend query - [x] https://github.com/datafuselabs/databend/issues/10461 - Verifying - [x] https://github.com/datafuselabs/databend/issues/10374 - [x] https://github.com/datafuselabs/databend/issues/10322 - [x] https://github.com/datafuselabs/databend/issues/10540 - [x] https://github.com/datafuselabs/databend/issues/10520 - [x] https://github.com/datafuselabs/databend/issues/10677 - [x] https://github.com/datafuselabs/databend/issues/9882 - [x]...