The beginTimestamp can be updated to second Index data

[Oliverwqcwrw]

BUG REPORT

1. Please describe the issue you observed:

In org.apache.rocketmq.store.index.IndexFile#putKey

if (this.indexHeader.getIndexCount() <= 1) {
this.indexHeader.setBeginPhyOffset(phyOffset);
this.indexHeader.setBeginTimestamp(storeTimestamp);
}

When the second message is added to the IndexFile, beginPhyOffset and beginTimestamp will still be updated because it satisfies indexCount less than or equal to 1

• What is expected to see?

if (this.indexHeader.getIndexCount() < 1) {
this.indexHeader.setBeginPhyOffset(phyOffset);
this.indexHeader.setBeginTimestamp(storeTimestamp);
}

2. Please tell us about your environment:

version:4.9.3

[Oliverwqcwrw]

IndexCount defaults to 1, so this is fine，I close the issue