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Subject: got Java.lang.NullPointerException on two node when I restart cluster
From: SP <sajidmca@gmail.com>
To: user@hadoop.apache.org
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Hi,


did any one got these error before, please help


ERROR org.apache.hadoop.hdfs.server.datanode.DataNode:
xxxxx.com:50010:DataXceiver
error processing WRITE_BLOCK operation  src: /xxxxxxxx:39000 dst:
/xxxxxx:50010

java.lang.NullPointerException

        at
org.apache.hadoop.hdfs.server.datanode.BlockReceiver.<init>(BlockReceiver.java:167)

        at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:604)

        at
org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:126)

        at
org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:72)

        at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:225)

        at java.lang.Thread.run(Thread.java:745)

2015-01-11 04:13:21,846 WARN
org.apache.hadoop.hdfs.server.datanode.DataNode: IOException in offerService



WARN org.apache.hadoop.hdfs.server.datanode.DataNode: Slow BlockReceiver
write packet to mirror took 657ms (threshold=300ms)



Thanks

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<div dir=3D"ltr"><p style=3D"margin:0px;font-size:12px;font-family:Times;co=
lor:rgb(0,190,243)">Hi,</p><p style=3D"margin:0px;font-size:12px;font-famil=
y:Times;color:rgb(0,190,243)"><br></p><p style=3D"margin:0px;font-size:12px=
;font-family:Times;color:rgb(0,190,243)">did any one got these error before=
, please help</p><p style=3D"margin:0px;font-size:12px;font-family:Times;co=
lor:rgb(0,190,243)"><br></p><p style=3D"margin:0px;font-size:12px;font-fami=
ly:Times;color:rgb(0,190,243)">ERROR org.apache.hadoop.hdfs.server.datanode=
.DataNode: xxxxx.com:50010:DataXceiver error processing WRITE_BLOCK operati=
on=C2=A0 src: /xxxxxxxx:39000 dst: /xxxxxx:50010</p><p style=3D"margin:0px;=
font-size:12px;font-family:Times;color:rgb(0,190,243)">java.lang.NullPointe=
rException</p><p style=3D"margin:0px;font-size:12px;font-family:Times;color=
:rgb(0,190,243)">=C2=A0 =C2=A0 =C2=A0 =C2=A0 at org.apache.hadoop.hdfs.serv=
er.datanode.BlockReceiver.&lt;init&gt;(BlockReceiver.java:167)</p><p style=
=3D"margin:0px;font-size:12px;font-family:Times;color:rgb(0,190,243)">=C2=
=A0 =C2=A0 =C2=A0 =C2=A0 at org.apache.hadoop.hdfs.server.datanode.DataXcei=
ver.writeBlock(DataXceiver.java:604)</p><p style=3D"margin:0px;font-size:12=
px;font-family:Times;color:rgb(0,190,243)">=C2=A0 =C2=A0 =C2=A0 =C2=A0 at o=
rg.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.=
java:126)</p><p style=3D"margin:0px;font-size:12px;font-family:Times;color:=
rgb(0,190,243)">=C2=A0 =C2=A0 =C2=A0 =C2=A0 at org.apache.hadoop.hdfs.proto=
col.datatransfer.Receiver.processOp(Receiver.java:72)</p><p style=3D"margin=
:0px;font-size:12px;font-family:Times;color:rgb(0,190,243)">=C2=A0 =C2=A0 =
=C2=A0 =C2=A0 at org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(Dat=
aXceiver.java:225)</p><p style=3D"margin:0px;font-size:12px;font-family:Tim=
es;color:rgb(0,190,243)">=C2=A0 =C2=A0 =C2=A0 =C2=A0 at java.lang.Thread.ru=
n(Thread.java:745)</p><p style=3D"margin:0px;font-size:12px;font-family:Tim=
es;color:rgb(0,190,243)">2015-01-11 04:13:21,846 WARN org.apache.hadoop.hdf=
s.server.datanode.DataNode: IOException in offerService</p><p style=3D"marg=
in:0px;font-size:12px;font-family:Times;color:rgb(0,190,243)"><br></p><p st=
yle=3D"margin:0px;font-size:12px;font-family:Times;color:rgb(0,190,243)"><b=
r></p><p style=3D"margin:0px;font-size:12px;font-family:Times;color:rgb(0,1=
90,243)">WARN org.apache.hadoop.hdfs.server.datanode.DataNode: Slow BlockRe=
ceiver write packet to mirror took 657ms (threshold=3D300ms)</p><p style=3D=
"margin:0px;font-size:12px;font-family:Times;color:rgb(0,190,243)"><br></p>=
<p style=3D"margin:0px;font-size:12px;font-family:Times;color:rgb(0,190,243=
)"><br></p><p style=3D"margin:0px;font-size:12px;font-family:Times;color:rg=
b(0,190,243)">Thanks</p><div class=3D"" style=3D"font-size:13px"><div id=3D=
":2ps" class=3D"" tabindex=3D"0"><img class=3D"" src=3D"https://ssl.gstatic=
.com/ui/v1/icons/mail/images/cleardot.gif"></div></div></div>

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