hadoop协议消息太大了.可能是恶意的.使用CodedInputStream.setSizeLimit()来增加大小限制

Question

我在datanodes的日志中看到了这一点.这可能是因为我将500万个文件复制到hdfs:

java.lang.IllegalStateException: com.google.protobuf.InvalidProtocolBufferException: Protocol message was too large.  May be malicious.  Use CodedInputStream.setSizeLimit() to increase the size limit.
at org.apache.hadoop.hdfs.protocol.BlockListAsLongs$BufferDecoder$1.next(BlockListAsLongs.java:332)
at org.apache.hadoop.hdfs.protocol.BlockListAsLongs$BufferDecoder$1.next(BlockListAsLongs.java:310)
at org.apache.hadoop.hdfs.protocol.BlockListAsLongs$BufferDecoder.getBlockListAsLongs(BlockListAsLongs.java:288)
at org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolClientSideTranslatorPB.blockReport(DatanodeProtocolClientSideTranslatorPB.java:190)
at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.blockReport(BPServiceActor.java:507)
at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.offerService(BPServiceActor.java:738)
at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:874)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.google.protobuf.InvalidProtocolBufferException: Protocol message was too large.  May be malicious.  Use CodedInputStream.setSizeLimit() to increase the size limit.
at com.google.protobuf.InvalidProtocolBufferException.sizeLimitExceeded(InvalidProtocolBufferException.java:110)
at com.google.protobuf.CodedInputStream.refillBuffer(CodedInputStream.java:755)
at com.google.protobuf.CodedInputStream.readRawByte(CodedInputStream.java:769)
at com.google.protobuf.CodedInputStream.readRawVarint64(CodedInputStream.java:462)
at com.google.protobuf.CodedInputStream.readSInt64(CodedInputStream.java:363)
at org.apache.hadoop.hdfs.protocol.BlockListAsLongs$BufferDecoder$1.next(BlockListAsLongs.java:326)
... 7 more

我只是使用hadoop fs -put ....将文件复制到hdfs.最近我开始在客户端获取这些类型的消息:

15/06/30 15:00:58 INFO hdfs.DFSClient:无法完成/pdf-nxml/file1.nxml.COPYING retrying ... 15/06/30 15:01:05 INFO hdfs.DFSClient:无法完成/pdf-nxml/2014-full/file2.nxml.复制正在重试...

我得到一个如上所述的msg每分钟说3次.但例外情况在数据节点上更频繁.

我怎样才能解决这个问题？

-----编辑----我必须重新启动hadoop,现在它在每个datanode的日志文件中没有正确启动:

2015-07-01 06:20:35,748 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: Unsuccessfully sent block report 0x2ac82e1cf6e64,  containing 1 storage report(s), of which we sent 0. The reports had 6342936 total blocks and used 0 RPC(s). This took 542 msec to generate and 240 msecs for RPC and NN processing. Got back no commands.
2015-07-01 06:20:35,748 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: Exception in BPOfferService for Block pool BP-1043486900-10.0.1.42-1434126972501 (Datanode Uuid d5dcf9a0-c82d-49d8-8162-af5910c3e3fe) service to cruncher02/10.0.1.42:8020
java.lang.IllegalStateException: com.google.protobuf.InvalidProtocolBufferException: Protocol message was too large.  May be malicious.  Use CodedInputStream.setSizeLimit() to increase the size limit.
at org.apache.hadoop.hdfs.protocol.BlockListAsLongs$BufferDecoder$1.next(BlockListAsLongs.java:332)
at org.apache.hadoop.hdfs.protocol.BlockListAsLongs$BufferDecoder$1.next(BlockListAsLongs.java:310)
at org.apache.hadoop.hdfs.protocol.BlockListAsLongs$BufferDecoder.getBlockListAsLongs(BlockListAsLongs.java:288)
at org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolClientSideTranslatorPB.blockReport(DatanodeProtocolClientSideTranslatorPB.java:190)
at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.blockReport(BPServiceActor.java:507)
at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.offerService(BPServiceActor.java:738)
at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:874)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.google.protobuf.InvalidProtocolBufferException: Protocol message was too large.  May be malicious.  Use CodedInputStream.setSizeLimit() to increase the size limit.
at com.google.protobuf.InvalidProtocolBufferException.sizeLimitExceeded(InvalidProtocolBufferException.java:110)
at com.google.protobuf.CodedInputStream.refillBuffer(CodedInputStream.java:755)
at com.google.protobuf.CodedInputStream.readRawByte(CodedInputStream.java:769)
at com.google.protobuf.CodedInputStream.readRawVarint64(CodedInputStream.java:462)
at com.google.protobuf.CodedInputStream.readSInt64(CodedInputStream.java:363)
at org.apache.hadoop.hdfs.protocol.BlockListAsLongs$BufferDecoder$1.next(BlockListAsLongs.java:326)
... 7 more

Answer 1

这个问题的答案已经在评论中给出了：

我的 hadoop 2.7.0 集群未启动。我必须重新编译 protobuf-2.5.0，将 com.google.protobuf.CodedInputStream#DEFAULT_SIZE_LIMIT 更改为 64 << 24。然后我修改了 hdfs-site.xml 以包含 ipc.maximum.data.length 134217728，现在似乎又恢复了。