No ledger found while trying to read last entry: 306

03:29:34.194 [BookieReadThreadPool-OrderedExecutor-0-0] ERROR org.apache.bookkeeper.proto.ReadLacProcessorV3 - No ledger found while performing readLac from ledger: 306
org.apache.bookkeeper.bookie.Bookie$NoLedgerException: Ledger 306 not found
at org.apache.bookkeeper.bookie.LedgerDescriptor.createReadOnly(LedgerDescriptor.java:52) ~[org.apache.bookkeeper-bookkeeper-server-4.12.0.jar:4.12.0]
at org.apache.bookkeeper.bookie.HandleFactoryImpl.getReadOnlyHandle(HandleFactoryImpl.java:61) ~[org.apache.bookkeeper-bookkeeper-server-4.12.0.jar:4.12.0]
at org.apache.bookkeeper.bookie.Bookie.getExplicitLac(Bookie.java:1364) ~[org.apache.bookkeeper-bookkeeper-server-4.12.0.jar:4.12.0]
at org.apache.bookkeeper.proto.ReadLacProcessorV3.getReadLacResponse(ReadLacProcessorV3.java:71) [org.apache.bookkeeper-bookkeeper-server-4.12.0.jar:4.12.0]
at org.apache.bookkeeper.proto.ReadLacProcessorV3.safeRun(ReadLacProcessorV3.java:118) [org.apache.bookkeeper-bookkeeper-server-4.12.0.jar:4.12.0]
at org.apache.bookkeeper.common.util.SafeRunnable.run(SafeRunnable.java:36) [org.apache.bookkeeper-bookkeeper-common-4.12.0.jar:4.12.0]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_282]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_282]
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [io.netty-netty-common-4.1.60.Final.jar:4.1.60.Final]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_282]
03:29:34.195 [BookieReadThreadPool-OrderedExecutor-0-0] ERROR org.apache.bookkeeper.proto.ReadLacProcessorV3 - No ledger found while trying to read last entry: 306
org.apache.bookkeeper.bookie.Bookie$NoLedgerException: Ledger 306 not found

Start with the stack trace in ReadLacProcessorV3.getReadLacResponse and Bookie.getExplicitLac, then inspect LedgerDescriptor.createReadOnly and HandleFactoryImpl.getReadOnlyHandle. Reproduce or trace the readLac request for ledger 306 and determine whether the missing-ledger error is expected or indicates a defect; done means the cause and corrective behavior are established.

Written by the indexing model from the issue text.