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Date: Fri, 16 May 2014 17:19:50 -0500
From: Jordan Zimmerman <jordan@jordanzimmerman.com>
To: Vadim Keylis <vkeylis2009@gmail.com>, user@curator.apache.org
Message-ID: <etPan.53768f15.39386575.20db@Jordans-MacBook-Pro.local>
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Subject: Re: How to create znode with curator
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Use creatingParentsIfNeeded(). ZooKeeper does not automatically create pa=
rent nodes.

-JZ


=46rom:=C2=A0Vadim Keylis vkeylis2009=40gmail.com
Reply:=C2=A0user=40curator.apache.org user=40curator.apache.org
Date:=C2=A0May 16, 2014 at 5:18:45 PM
To:=C2=A0user=40curator.apache.org user=40curator.apache.org
Subject:=C2=A0 Re: How to create znode with curator =20

When I run the code I get exception:

org.apache.zookeeper.KeeperException=24NoNodeException: KeeperErrorCode =3D=
 NoNode for=C2=A0/name/offset/event-capture/topic
at org.apache.zookeeper.KeeperException.create(KeeperException.java:111)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:783)
at org.apache.curator.framework.imps.CreateBuilderImpl=2411.call(CreateBu=
ilderImpl.java:676)


On Thu, May 15, 2014 at 2:23 PM, Vadim Keylis <vkeylis2009=40gmail.com> w=
rote:
How do you create a path if it does not exist.
Curator=46ramework =C2=A0 =C2=A0client =3D Curator=46ramework=46actory.ne=
wClient(=22dzoo01:2181/kafka=22, new ExponentialBackoffRetry(1000, 3));

path=3D '/name/offset/event-capture/topic';

I check if path exists
if(curator=46ramework.checkExists().forPath(path) =3D=3D null)=7B
=C2=A0 =C2=A0=C2=A0curator=46ramework.create().forPath(path)
=7D

will that code snippet create znode=3F


Thanks,
Vadim=C2=A0


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<html><head><style>body=7Bfont-family:Helvetica,Arial;font-size:13px=7D</=
style></head><body style=3D=22word-wrap: break-word; -webkit-nbsp-mode: s=
pace; -webkit-line-break: after-white-space;=22><div id=3D=22bloop=5Fcust=
omfont=22 style=3D=22font-family:Helvetica,Arial;font-size:13px; color: r=
gba(0,0,0,1.0); margin: 0px; line-height: auto;=22>Use creatingParentsIfN=
eeded(). ZooKeeper does not automatically create parent nodes.</div><div =
id=3D=22bloop=5Fcustomfont=22 style=3D=22font-family:Helvetica,Arial;font=
-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;=22><b=
r></div><div id=3D=22bloop=5Fcustomfont=22 style=3D=22font-family:Helveti=
ca,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height=
: auto;=22>-JZ</div> <div id=3D=22bloop=5Fsign=5F1400278742111012096=22 c=
lass=3D=22bloop=5Fsign=22><div style=3D=22font-family:helvetica,arial;fon=
t-size:13px=22><br></div></div> <div style=3D=22color:black=22><br>=46rom=
:&nbsp;<span style=3D=22color:black=22>Vadim Keylis</span> <a href=3D=22m=
ailto:vkeylis2009=40gmail.com=22>vkeylis2009=40gmail.com</a><br>Reply:&nb=
sp;<span style=3D=22color:black=22>user=40curator.apache.org</span> <a hr=
ef=3D=22mailto:user=40curator.apache.org=22>user=40curator.apache.org</a>=
<br>Date:&nbsp;<span style=3D=22color:black=22>May 16, 2014 at 5:18:45 PM=
</span><br>To:&nbsp;<span style=3D=22color:black=22>user=40curator.apache=
.org</span> <a href=3D=22mailto:user=40curator.apache.org=22>user=40curat=
or.apache.org</a><br>Subject:&nbsp;<span style=3D=22color:black=22> Re: H=
ow to create znode with curator <br></span></div><br> <blockquote type=3D=
=22cite=22 class=3D=22clean=5Fbq=22><span><div><div></div><div>



<title></title>


<div dir=3D=22ltr=22>When I run the code I get exception:
<div><br></div>
<div>
<div>org.apache.zookeeper.KeeperException=24NoNodeException:
KeeperErrorCode =3D NoNode for&nbsp;<span style=3D=22font-size:12.7272720=
33691406px;font-family:arial,sans-serif=22>/name/offset/event-capture/</s=
pan><span style=3D=22font-size:12.727272033691406px;font-family:arial,san=
s-serif=22>topic</span></div>
<div>at
org.apache.zookeeper.KeeperException.create(KeeperException.java:111)</di=
v>
<div>at
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)</div=
>
<div>at
org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:783)</div>
<div>at
org.apache.curator.framework.imps.CreateBuilderImpl=2411.call(CreateBuild=
erImpl.java:676)</div>
</div>
</div>
<div class=3D=22gmail=5Fextra=22><br>
<br>
<div class=3D=22gmail=5Fquote=22>On Thu, May 15, 2014 at 2:23 PM, Vadim
Keylis <span dir=3D=22ltr=22>&lt;<a href=3D=22mailto:vkeylis2009=40gmail.=
com=22 target=3D=22=5Fblank=22>vkeylis2009=40gmail.com</a>&gt;</span> wro=
te:<br>
<blockquote class=3D=22gmail=5Fquote=22 style=3D=22margin:0 0 0 .8ex;bord=
er-left:1px =23ccc solid;padding-left:1ex=22>
<div dir=3D=22ltr=22>
<div>How do you create a path if it does not exist.</div>
Curator=46ramework &nbsp; &nbsp;client =3D
Curator=46ramework=46actory.newClient(=22dzoo01:2181/kafka=22, new
ExponentialBackoffRetry(1000, 3));
<div><br></div>
<div>path=3D '/name/offset/event-capture/topic';</div>
<div><br></div>
<div>I check if path exists</div>
<div>if(curator=46ramework.checkExists().forPath(path) =3D=3D
null)=7B<br></div>
<div>&nbsp;
&nbsp;&nbsp;curator=46ramework.create().forPath(path)</div>
<div>=7D</div>
<div><br></div>
<div>will that code snippet create znode=3F</div>
<div><br></div>
<div><br></div>
<div>Thanks,</div>
<div>Vadim&nbsp;</div>
</div>
</blockquote>
</div>
<br></div>


</div></div></span></blockquote></body></html>
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