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From: Sam Tunnicliffe <sam@beobal.com>
Date: Fri, 23 Sep 2016 11:06:15 +0100
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Subject: Re: During writing data into Cassandra 3.7.0 using Python driver 3.7
 sometime loose Connection because of Server NullPointerException (Help please!)
To: user@cassandra.apache.org
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archived-at: Fri, 23 Sep 2016 10:06:25 -0000

--089e011778c9c8bb63053d29eda9
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The stacktrace suggests that when a connection is being established, either
the can_login or is_superuser attribute of the authenticated role is null,
which is definitely a bug as there should be no way to create a role in
that state.

Could you please open a ticket on
https://issues.apache.org/jira/browse/CASSANDRA (including as much detail
as possible)? If you could reply back to this with the ticket # that'd be
helpful for anyone coming across a similar issue in future.

Thanks,
Sam


On Fri, Sep 23, 2016 at 10:33 AM, Rajesh Radhakrishnan <
Rajesh.Radhakrishnan@phe.gov.uk> wrote:

> Hi,
>
>
> In one of our C* cluster we are using the latest Cassandra 3.7.0
> (datastax-ddc.3.70) with Python driver 3.7. We are trying to insert 2
> million row or more data into the database, it works but sometimes we are
> getting "Null pointer Exception". I am quoting  the Exception here.
> Any help would be highly appreciated.
>
> We are using Python 2.7.11 and Java 1.8.0_73 in the Cassandra nodes and in
> the client its Python 2.7.12.
>
> ============================================================
> ======================================================
> ERROR [SharedPool-Worker-6] 2016-09-23 09:42:55,002 Message.java:611 -
> Unexpected exception during request; channel = [id: 0xc208da86,
> L:/IP1.IP2.IP3.IP4:9042 - R:/IP5.IP6.IP7.IP8:58418]
>
> java.lang.NullPointerException: null
>
>     at org.apache.cassandra.serializers.BooleanSerializer.
> deserialize(BooleanSerializer.java:33) ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.serializers.BooleanSerializer.
> deserialize(BooleanSerializer.java:24) ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.db.marshal.AbstractType.compose(AbstractType.java:113)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.cql3.UntypedResultSet$Row.
> getBoolean(UntypedResultSet.java:273) ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.auth.CassandraRoleManager$1.apply(CassandraRoleManager.java:85)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.auth.CassandraRoleManager$1.apply(CassandraRoleManager.java:81)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.auth.CassandraRoleManager.getRoleFromTable(CassandraRoleManager.java:503)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.auth.CassandraRoleManager.getRole(CassandraRoleManager.java:485)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.auth.CassandraRoleManager.canLogin(CassandraRoleManager.java:298)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.service.ClientState.login(ClientState.java:227)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.transport.messages.AuthResponse.execute(AuthResponse.java:79)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:507)
> [apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:401)
> [apache-cassandra-3.7.0.jar:3.7.0]
>
>     at io.netty.channel.SimpleChannelInboundHandler.channelRead(
> SimpleChannelInboundHandler.java:105) [netty-all-4.0.36.Final.jar:4.
> 0.36.Final]
>
>     at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(
> AbstractChannelHandlerContext.java:292) [netty-all-4.0.36.Final.jar:4.
> 0.36.Final]
>
>     at io.netty.channel.AbstractChannelHandlerContext.access$600(
> AbstractChannelHandlerContext.java:32) [netty-all-4.0.36.Final.jar:4.
> 0.36.Final]
>
>     at io.netty.channel.AbstractChannelHandlerContext$7.run(
> AbstractChannelHandlerContext.java:283) [netty-all-4.0.36.Final.jar:4.
> 0.36.Final]
>
>     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [na:1.8.0_73]
>
>     at org.apache.cassandra.concurrent.AbstractLocalAwareExecutorServ
> ice$FutureTask.run(AbstractLocalAwareExecutorService.java:164)
> [apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105)
> [apache-cassandra-3.7.0.jar:3.7.0]
>
>     at java.lang.Thread.run(Thread.java:745) [na:1.8.0_73]
>
> ERROR [SharedPool-Worker-1] 2016-09-23 09:42:56,238 Message.java:611 -
> Unexpected exception during request; channel = [id: 0x8e2eae00,
> L:/IP1.IP2.IP3.IP4:9042 - R:/IP5.IP6.IP7.IP8:58421]
>
> java.lang.NullPointerException: null
>
>     at org.apache.cassandra.serializers.BooleanSerializer.
> deserialize(BooleanSerializer.java:33) ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.serializers.BooleanSerializer.
> deserialize(BooleanSerializer.java:24) ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.db.marshal.AbstractType.compose(AbstractType.java:113)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.cql3.UntypedResultSet$Row.
> getBoolean(UntypedResultSet.java:273) ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.auth.CassandraRoleManager$1.apply(CassandraRoleManager.java:85)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.auth.CassandraRoleManager$1.apply(CassandraRoleManager.java:81)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.auth.CassandraRoleManager.getRoleFromTable(CassandraRoleManager.java:503)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.auth.CassandraRoleManager.getRole(CassandraRoleManager.java:485)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.auth.CassandraRoleManager.canLogin(CassandraRoleManager.java:298)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.service.ClientState.login(ClientState.java:227)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.transport.messages.AuthResponse.execute(AuthResponse.java:79)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:507)
> [apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:401)
> [apache-cassandra-3.7.0.jar:3.7.0]
>
>     at io.netty.channel.SimpleChannelInboundHandler.channelRead(
> SimpleChannelInboundHandler.java:105) [netty-all-4.0.36.Final.jar:4.
> 0.36.Final]
>
>     at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(
> AbstractChannelHandlerContext.java:292) [netty-all-4.0.36.Final.jar:4.
> 0.36.Final]
>
>     at io.netty.channel.AbstractChannelHandlerContext.access$600(
> AbstractChannelHandlerContext.java:32) [netty-all-4.0.36.Final.jar:4.
> 0.36.Final]
>
>     at io.netty.channel.AbstractChannelHandlerContext$7.run(
> AbstractChannelHandlerContext.java:283) [netty-all-4.0.36.Final.jar:4.
> 0.36.Final]
>
>     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [na:1.8.0_73]
>
>     at org.apache.cassandra.concurrent.AbstractLocalAwareExecutorServ
> ice$FutureTask.run(AbstractLocalAwareExecutorService.java:164)
> [apache-cassandra-3.7.0.jar:3.7.0]
>
>     at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105)
> [apache-cassandra-3.7.0.jar:3.7.0]
>
>     at java.lang.Thread.run(Thread.java:745) [na:1.8.0_73]
> ============================================================
> ======================================================
>
> Thank you.
>
>
> Kind regards,
> Rajesh Radhakrishnan
>
>
> **************************************************************************
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--089e011778c9c8bb63053d29eda9
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>The stacktrace suggests that when a connection is bei=
ng established, either the can_login or is_superuser attribute of the authe=
nticated role is null, which is definitely a bug as there should be no way =
to create a role in that state.=C2=A0</div><div><br></div><div>Could you pl=
ease open a ticket on <a href=3D"https://issues.apache.org/jira/browse/CASS=
ANDRA">https://issues.apache.org/jira/browse/CASSANDRA</a> (including as mu=
ch detail as possible)? If you could reply back to this with the ticket # t=
hat&#39;d be helpful for anyone coming across a similar issue in future.</d=
iv><div><br></div><div>Thanks,</div><div>Sam</div><div><br></div></div><div=
 class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Fri, Sep 23, 2016 =
at 10:33 AM, Rajesh Radhakrishnan <span dir=3D"ltr">&lt;<a href=3D"mailto:R=
ajesh.Radhakrishnan@phe.gov.uk" target=3D"_blank">Rajesh.Radhakrishnan@phe.=
gov.uk</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"=
margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">




<div>
<div style=3D"direction:ltr;font-family:Tahoma;color:#000000;font-size:10pt=
">Hi,<br>
<br>
<div><br>
In one of our C* cluster we are using the latest Cassandra 3.7.0 (datastax-=
ddc.3.70) with Python driver 3.7. We are trying to insert 2 million row or =
more data into the database, it works but sometimes we are getting &quot;Nu=
ll pointer Exception&quot;. I am quoting=C2=A0
 the Exception here. <br>
Any help would be highly appreciated.<br>
<br>
We are using Python 2.7.11 and Java 1.8.0_73 in the Cassandra nodes and in =
the client its Python 2.7.12.<br>
<br>
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D<wbr>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<wbr>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<wbr>=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br>
ERROR [SharedPool-Worker-6] 2016-09-23 09:42:55,002 Message.java:611 - Unex=
pected exception during request; channel =3D [id: 0xc208da86, L:/IP1.IP2.IP=
3.IP4:9042 - R:/IP5.IP6.IP7.IP8:58418]<br>
<br>
java.lang.<wbr>NullPointerException: null<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.<wbr>serializers.BooleanSerializ=
er.<wbr>deserialize(BooleanSerializer.<wbr>java:33) ~[apache-cassandra-3.7.=
0.jar:<wbr>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.<wbr>serializers.BooleanSerializ=
er.<wbr>deserialize(BooleanSerializer.<wbr>java:24) ~[apache-cassandra-3.7.=
0.jar:<wbr>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.db.<wbr>marshal.AbstractType.com=
pose(<wbr>AbstractType.java:113) ~[apache-cassandra-3.7.0.jar:<wbr>3.7.0]<b=
r>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.cql3.<wbr>UntypedResultSet$Row.<=
wbr>getBoolean(UntypedResultSet.<wbr>java:273) ~[apache-cassandra-3.7.0.jar=
:<wbr>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.auth.<wbr>CassandraRoleManager$1=
.apply(<wbr>CassandraRoleManager.java:85) ~[apache-cassandra-3.7.0.jar:<wbr=
>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.auth.<wbr>CassandraRoleManager$1=
.apply(<wbr>CassandraRoleManager.java:81) ~[apache-cassandra-3.7.0.jar:<wbr=
>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.auth.<wbr>CassandraRoleManager.<=
wbr>getRoleFromTable(<wbr>CassandraRoleManager.java:503) ~[apache-cassandra=
-3.7.0.jar:<wbr>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.auth.<wbr>CassandraRoleManager.g=
etRole(<wbr>CassandraRoleManager.java:485) ~[apache-cassandra-3.7.0.jar:<wb=
r>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.auth.<wbr>CassandraRoleManager.c=
anLogin(<wbr>CassandraRoleManager.java:298) ~[apache-cassandra-3.7.0.jar:<w=
br>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.service.<wbr>ClientState.login(C=
lientState.<wbr>java:227) ~[apache-cassandra-3.7.0.jar:<wbr>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.<wbr>transport.messages.<wbr>Aut=
hResponse.execute(<wbr>AuthResponse.java:79) ~[apache-cassandra-3.7.0.jar:<=
wbr>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.<wbr>transport.Message$Dispatche=
r.<wbr>channelRead0(Message.java:507) [apache-cassandra-3.7.0.jar:3.<wbr>7.=
0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.<wbr>transport.Message$Dispatche=
r.<wbr>channelRead0(Message.java:401) [apache-cassandra-3.7.0.jar:3.<wbr>7.=
0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at io.netty.channel.<wbr>SimpleChannelInboundHandler.<wb=
r>channelRead(<wbr>SimpleChannelInboundHandler.<wbr>java:105) [netty-all-4.=
0.36.Final.jar:4.<wbr>0.36.Final]<br>
<br>
=C2=A0=C2=A0=C2=A0 at io.netty.channel.<wbr>AbstractChannelHandlerContext.<=
wbr>invokeChannelRead(<wbr>AbstractChannelHandlerContext.<wbr>java:292) [ne=
tty-all-4.0.36.Final.jar:4.<wbr>0.36.Final]<br>
<br>
=C2=A0=C2=A0=C2=A0 at io.netty.channel.<wbr>AbstractChannelHandlerContext.<=
wbr>access$600(<wbr>AbstractChannelHandlerContext.<wbr>java:32) [netty-all-=
4.0.36.Final.jar:4.<wbr>0.36.Final]<br>
<br>
=C2=A0=C2=A0=C2=A0 at io.netty.channel.<wbr>AbstractChannelHandlerContext$<=
wbr>7.run(<wbr>AbstractChannelHandlerContext.<wbr>java:283) [netty-all-4.0.=
36.Final.jar:4.<wbr>0.36.Final]<br>
<br>
=C2=A0=C2=A0=C2=A0 at java.util.concurrent.<wbr>Executors$RunnableAdapter.<=
wbr>call(Executors.java:511) [na:1.8.0_73]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.<wbr>concurrent.<wbr>AbstractLoc=
alAwareExecutorServ<wbr>ice$FutureTask.run(<wbr>AbstractLocalAwareExecutorS=
erv<wbr>ice.java:164) [apache-cassandra-3.7.0.jar:3.<wbr>7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.<wbr>concurrent.SEPWorker.run(<w=
br>SEPWorker.java:105) [apache-cassandra-3.7.0.jar:3.<wbr>7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at java.lang.Thread.run(Thread.<wbr>java:745) [na:1.8.0_=
73]<br>
<br>
ERROR [SharedPool-Worker-1] 2016-09-23 09:42:56,238 Message.java:611 - Unex=
pected exception during request; channel =3D [id: 0x8e2eae00, L:/IP1.IP2.IP=
3.IP4:9042 - R:/IP5.IP6.IP7.IP8:58421]<br>
<br>
java.lang.<wbr>NullPointerException: null<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.<wbr>serializers.BooleanSerializ=
er.<wbr>deserialize(BooleanSerializer.<wbr>java:33) ~[apache-cassandra-3.7.=
0.jar:<wbr>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.<wbr>serializers.BooleanSerializ=
er.<wbr>deserialize(BooleanSerializer.<wbr>java:24) ~[apache-cassandra-3.7.=
0.jar:<wbr>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.db.<wbr>marshal.AbstractType.com=
pose(<wbr>AbstractType.java:113) ~[apache-cassandra-3.7.0.jar:<wbr>3.7.0]<b=
r>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.cql3.<wbr>UntypedResultSet$Row.<=
wbr>getBoolean(UntypedResultSet.<wbr>java:273) ~[apache-cassandra-3.7.0.jar=
:<wbr>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.auth.<wbr>CassandraRoleManager$1=
.apply(<wbr>CassandraRoleManager.java:85) ~[apache-cassandra-3.7.0.jar:<wbr=
>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.auth.<wbr>CassandraRoleManager$1=
.apply(<wbr>CassandraRoleManager.java:81) ~[apache-cassandra-3.7.0.jar:<wbr=
>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.auth.<wbr>CassandraRoleManager.<=
wbr>getRoleFromTable(<wbr>CassandraRoleManager.java:503) ~[apache-cassandra=
-3.7.0.jar:<wbr>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.auth.<wbr>CassandraRoleManager.g=
etRole(<wbr>CassandraRoleManager.java:485) ~[apache-cassandra-3.7.0.jar:<wb=
r>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.auth.<wbr>CassandraRoleManager.c=
anLogin(<wbr>CassandraRoleManager.java:298) ~[apache-cassandra-3.7.0.jar:<w=
br>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.service.<wbr>ClientState.login(C=
lientState.<wbr>java:227) ~[apache-cassandra-3.7.0.jar:<wbr>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.<wbr>transport.messages.<wbr>Aut=
hResponse.execute(<wbr>AuthResponse.java:79) ~[apache-cassandra-3.7.0.jar:<=
wbr>3.7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.<wbr>transport.Message$Dispatche=
r.<wbr>channelRead0(Message.java:507) [apache-cassandra-3.7.0.jar:3.<wbr>7.=
0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.<wbr>transport.Message$Dispatche=
r.<wbr>channelRead0(Message.java:401) [apache-cassandra-3.7.0.jar:3.<wbr>7.=
0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at io.netty.channel.<wbr>SimpleChannelInboundHandler.<wb=
r>channelRead(<wbr>SimpleChannelInboundHandler.<wbr>java:105) [netty-all-4.=
0.36.Final.jar:4.<wbr>0.36.Final]<br>
<br>
=C2=A0=C2=A0=C2=A0 at io.netty.channel.<wbr>AbstractChannelHandlerContext.<=
wbr>invokeChannelRead(<wbr>AbstractChannelHandlerContext.<wbr>java:292) [ne=
tty-all-4.0.36.Final.jar:4.<wbr>0.36.Final]<br>
<br>
=C2=A0=C2=A0=C2=A0 at io.netty.channel.<wbr>AbstractChannelHandlerContext.<=
wbr>access$600(<wbr>AbstractChannelHandlerContext.<wbr>java:32) [netty-all-=
4.0.36.Final.jar:4.<wbr>0.36.Final]<br>
<br>
=C2=A0=C2=A0=C2=A0 at io.netty.channel.<wbr>AbstractChannelHandlerContext$<=
wbr>7.run(<wbr>AbstractChannelHandlerContext.<wbr>java:283) [netty-all-4.0.=
36.Final.jar:4.<wbr>0.36.Final]<br>
<br>
=C2=A0=C2=A0=C2=A0 at java.util.concurrent.<wbr>Executors$RunnableAdapter.<=
wbr>call(Executors.java:511) [na:1.8.0_73]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.<wbr>concurrent.<wbr>AbstractLoc=
alAwareExecutorServ<wbr>ice$FutureTask.run(<wbr>AbstractLocalAwareExecutorS=
erv<wbr>ice.java:164) [apache-cassandra-3.7.0.jar:3.<wbr>7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at org.apache.cassandra.<wbr>concurrent.SEPWorker.run(<w=
br>SEPWorker.java:105) [apache-cassandra-3.7.0.jar:3.<wbr>7.0]<br>
<br>
=C2=A0=C2=A0=C2=A0 at java.lang.Thread.run(Thread.<wbr>java:745) [na:1.8.0_=
73]<br>
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D<wbr>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<wbr>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<wbr>=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br>
<br>
Thank you.<br>
<br>
<div style=3D"font-family:Tahoma;font-size:13px">
<div style=3D"font-family:Tahoma;font-size:13px">
<div style=3D"font-family:Tahoma;font-size:13px">
<div style=3D"font-family:Tahoma;font-size:13px">
<div style=3D"font-family:Tahoma;font-size:13px">
<div style=3D"font-family:Tahoma;font-size:13px">
<div style=3D"font-family:Tahoma;font-size:13px">
<div style=3D"font-family:Tahoma;font-size:13px"><font face=3D"Times New Ro=
man"><br>
</font>
<div style=3D"font-family:Tahoma;font-size:13px"><span lang=3D"en-GB"><font=
 face=3D"Tahoma" color=3D"black" size=3D"2"><span dir=3D"ltr" style=3D"font=
-size:10pt"><font face=3D"Times New Roman" size=3D"2"><span style=3D"font-s=
ize:16px">
<div style=3D"margin:0"><font face=3D"Calibri,sans-serif" size=3D"2"><span =
style=3D"font-size:11pt"><font face=3D"Times New Roman">Kind regards,</font=
><br>
<font face=3D"Times New Roman">Rajesh Radhakrishnan </font></span></font><f=
ont size=3D"2"><span style=3D"font-size:11pt"></span></font></div>
<div style=3D"margin:0"><font size=3D"2"><span style=3D"font-size:11pt"><fo=
nt size=3D"2"><span style=3D"font-size:10.5pt"><br>
</span></font></span></font><font color=3D"00CCFF"><span lang=3D"en-GB"><fo=
nt size=3D"2"><span dir=3D"ltr" style=3D"font-size:10pt"><font size=3D"2"><=
span style=3D"font-size:16px"><font size=3D"2"><span style=3D"font-size:11p=
t"></span></font></span></font></span></font></span></font></div>
</span></font></span></font></span></div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
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</blockquote></div><br></div>

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