AnonHxy commented on code in PR #4602:
URL: https://github.com/apache/bookkeeper/pull/4602#discussion_r2085806272
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bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/bookie/ReadLogMetadataCommand.java:
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@@ -131,8 +131,7 @@ private void printEntryLogMetadata(ServerConfiguration
conf, long logId) throws
LOG.info("Print entryLogMetadata of entrylog {} ({}.log)", logId,
Long.toHexString(logId));
initEntryLogger(conf);
EntryLogMetadata entryLogMetadata =
entryLogger.getEntryLogMetadata(logId);
- LOG.info("entryLogId: {}, remaining size: {}, total size: {}, usage:
{}", entryLogMetadata.getEntryLogId(),
- entryLogMetadata.getRemainingSize(),
entryLogMetadata.getTotalSize(), entryLogMetadata.getUsage());
+ LOG.info("entryLogId: {}, total size: {}",
entryLogMetadata.getEntryLogId(), entryLogMetadata.getTotalSize());
Review Comment:
`entryLogger.getEntryLogMetadata(logId)` will only add `totalSize` and
`remainingSize` :
https://github.com/apache/bookkeeper/blob/22c45f925a174be3fde0c4ce86923a3751a54cc8/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/EntryLogMetadata.java#L57-L60
DefaultEntryLogger#extractEntryLogMetadataFromIndex：
https://github.com/apache/bookkeeper/blob/22c45f925a174be3fde0c4ce86923a3751a54cc8/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/DefaultEntryLogger.java#L1126-L1134
if we want to know the real `remainingSize`, we should traverse the
metadata and call `EntryLogMetadata#removeLedgerIf`, and that is what
`bin/bookkeeper shell activeledgers` do.
https://github.com/apache/bookkeeper/blob/22c45f925a174be3fde0c4ce86923a3751a54cc8/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/GarbageCollectorThread.java#L570-L577
So I think if we want to know the usage of the entry log, we can call
`bin/bookkeeper shell activeledgers` insteal of `bin/bookkeeper shell
readlogmetadata`
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