MappedFile
consumequeue
00000000000000000000
commitlog
ROCKETMQ_HOME
MappedFileQueue
queueid=0
topic
store
consumeQueueTable
IndexFile
Broker逻辑上
20220519003106114
00000000001073741824
private ArrayList<IndexFile> indexFileList = new ArrayList<IndexFile>();
00000000003221225472
indexFileList
queueid=..
00000000000012000000
00000000002147483648
IndexService
queueid=1
ConsumeQueue
Broker物理上
00000000000006000000
CommitLog
index
20220514003106114
DefaultMessageStore
