[fix][broker] Fix ledger cachemiss size metric

[AnonHxy]

Motivation

ledger cache miss rate should be same as ledgerFactory cache miss rate. For details, the major fix is that the count always increace 1 when entriesToReturn.size() is greater thant one, e.g., line453 at RangeEntryCacheImpl.java

Modifications

ledger cache miss rate should be same as ledgerFactory cache miss rate

Verifying this change

• Make sure that the change passes the CI checks.

Documentation

• doc
• doc-required
• doc-not-needed
• doc-complete

Matching PR in forked repository

PR in forked repository: AnonHxy#38

[StevenLuMT]

LGTM

[HQebupt]

LGTM

[Technoboy-]

We don't need valueRate, so it seems no need to fix.

[AnonHxy]

seems no need to fix.

The major fix is not the valueRate. It's that the count always increace 1 when entriesToReturn.size() is greater thant one, e.g., line453 at RangeEntryCacheImpl.java @Technoboy-

[AnonHxy]

seems no need to fix.

The major fix is not the valueRate. It's that the count always increace 1 when entriesToReturn.size() is greater thant one, e.g., line453 at RangeEntryCacheImpl.java @Technoboy-

Hi @Technoboy- Do you have any other comments:) thanks

[Technoboy-]

seems no need to fix.

The major fix is not the valueRate. It's that the count always increace 1 when entriesToReturn.size() is greater thant one, e.g., line453 at RangeEntryCacheImpl.java @Technoboy-

Hi @Technoboy- Do you have any other comments:) thanks

Make sense. So we'd better update the motivation.

[AnonHxy]

Make sense. So we'd better update the motivation.

OK. Updated