PD store usage not right in master. #4906
Description
Bug Report
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1. Minimal reproduce step (Required)
- The tiflash used from tiflash metrics
- The metrics from pd
They both called getFsStats(). And but get the different result.
I think the problem in pd.rs handle_store_heartbeat:
let capacity = store_stats.fs_stats.capacity_size;
let available = store_stats.fs_stats.avail_size;
stats.set_used_size(store_stats.fs_stats.used_size);
stats.set_capacity(capacity);
let used_size = self.snap_mgr.get_total_snap_size().unwrap()
+ store_info
.kv_engine
.get_engine_used_size()
.expect("kv engine used size")
+ store_info
.raft_engine
.get_engine_size()
.expect("raft engine used size");
stats.set_used_size(used_size);
The below set_used_size replace the origin one.