hadoop-common-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Vishnu Viswanath <vishnu.viswanat...@gmail.com>
Subject Re: ack with firstBadLink as 192.168.1.12:50010?
Date Thu, 04 Jun 2015 05:51:10 GMT
I had seen this issue. and it was due to data nodes not able to process
those many requests at a time.


On Thu, Jun 4, 2015 at 11:14 AM, Arpit Agarwal <aagarwal@hortonworks.com>
wrote:

>  I recall seeing this error due to a network misconfiguration. You may
> want to verify that IP addresses and host names are correctly setup.
>
>   From: Caesar Samsi
> Reply-To: "user@hadoop.apache.org"
> Date: Wednesday, June 3, 2015 at 8:07 PM
> To: "user@hadoop.apache.org"
> Subject: ack with firstBadLink as 192.168.1.12:50010?
>
>   I’ve just built my distributed cluster but am getting the following
> error when I try to use HDFS.
>
>
>
> I’ve traced it by telnet to 192.168.1.12 50010 and it just waits there
> waiting for a connection but never happens.
>
>
>
> If I telnet on that host using localhost (127.0.0.1) the telnet connection
> happens immediately.
>
>
>
> What could be the cause?
>
>
>
> >>
>
>
>
> hduser@hadoopmaster ~/hadoop $ hdfs dfs -copyFromLocal input input
>
> 15/06/03 20:03:36 INFO hdfs.DFSClient: Exception in createBlockOutputStream
>
> java.io.IOException: Got error, status message , ack with firstBadLink as
> 192.168.1.12:50010
>
>                 at
> org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
>
>                 at
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1334)
>
>                 at
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1237)
>
>                 at
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:449)
>
> 15/06/03 20:03:36 INFO hdfs.DFSClient: Abandoning
> BP-101149352-192.168.1.10-1433386347922:blk_1073741829_1005
>
> 15/06/03 20:03:36 INFO hdfs.DFSClient: Excluding datanode
> DatanodeInfoWithStorage[192.168.1.12:50010
> ,DS-1347a6fe-6bad-4df8-88cb-21378b847839,DISK]
>
> 15/06/03 20:03:36 WARN hdfs.DFSClient: Slow waitForAckedSeqno took 70947ms
> (threshold=30000ms)
>

Mime
View raw message