codelipenghui opened a new issue #2143: org.apache.bookkeeper.bookie.BookieException$LedgerFencedException: null URL: https://github.com/apache/bookkeeper/issues/2143 **BUG REPORT** ***Describe the bug*** The error log shows cause LedgerFencedException while add entry, but i don't know the `LedgerFencedException: null` means. ``` 2019-08-15 11:36:12.044 [BookieHighPriorityThread-3131-OrderedExecutor-6-0] WARN org.apache.bookkeeper.proto.ReadEntryProcessor - Ledger: 506214 fenced by: /10.1.2.182:54718 2019-08-15 11:36:12.191 [bookie-io-1-30] ERROR org.apache.bookkeeper.proto.WriteEntryProcessor - Attempt to write to fenced ledger org.apache.bookkeeper.bookie.BookieException$LedgerFencedException: null at org.apache.bookkeeper.bookie.BookieException.create(BookieException.java:57) ~[org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at org.apache.bookkeeper.bookie.Bookie.addEntry(Bookie.java:1365) ~[org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at org.apache.bookkeeper.proto.WriteEntryProcessor.processPacket(WriteEntryProcessor.java:79) [org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at org.apache.bookkeeper.proto.PacketProcessorBase.safeRun(PacketProcessorBase.java:85) [org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at org.apache.bookkeeper.common.util.SafeRunnable.run(SafeRunnable.java:36) [org.apache.bookkeeper-bookkeeper-common-4.9.2.jar:4.9.2] at org.apache.bookkeeper.proto.BookieRequestProcessor.processAddRequest(BookieRequestProcessor.java:603) [org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at org.apache.bookkeeper.proto.BookieRequestProcessor.processRequest(BookieRequestProcessor.java:362) [org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at org.apache.bookkeeper.proto.BookieRequestHandler.channelRead(BookieRequestHandler.java:80) [org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at org.apache.bookkeeper.proto.AuthHandler$ServerSideHandler.channelRead(AuthHandler.java:89) [org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at org.apache.bookkeeper.proto.BookieProtoEncoding$RequestDecoder.channelRead(BookieProtoEncoding.java:441) [org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:323) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:297) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1434) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:965) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:799) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:433) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:330) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:909) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121] ``` Here is the bookie log file: [bookie.log](https://github.com/apache/bookkeeper/files/3504790/bookie.log)
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