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From: Check Peck <comptechgeeky@gmail.com>
Date: Sun, 13 Sep 2015 13:43:44 -0700
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 <CAF+A=7qks0ZhQfPKWe96y9FUUaW7htcT33dn4sG9fGNZyBSrkQ@mail.gmail.com>
Subject: Re: Best Practice while creating znodes?
To: user <user@curator.apache.org>
Cc: user <user@zookeeper.apache.org>
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Hi Jordan,

I was looking at this email which you sent me long time back. Here you
mentioned  - If I call getChildren(), the entire length of all the children
can't exceed 1MB. Suppose, I have 500 clients as client_0, client_1 etc.
And each client has 50-60 znodes with some data in it.

List<String> children = client.getData().forPath("/root/clients/");

So by length here you mean, actual znode name of all clients? Or something
else?

Actually I am confuse what does length the the entire length of all the
children means? Does it mean data also within each node or just the
zookeeper  path of those node.


On Thu, Nov 7, 2013 at 10:57 AM, Jordan Zimmerman <
jordan@jordanzimmerman.com> wrote:

> There are very few limitations on naming. You can't use a slash. Have a
> look at:
>
> org.apache.zookeeper.common.PathUtils
>
> In terms of length, ZooKeeper has a 1MB limit per API call. So, for
> example, if you call getChildren(), the entire length of all the children
> can't exceed 1MB (unless you reconfigure ZK).
>
> -JZ
>
> On Nov 7, 2013, at 10:45 AM, Techy Teck <comptechgeeky@gmail.com> wrote:
>
> Can anyone help me on this?
>
> Is there any best practices that we need to follow while creating the
> znodes?
>
> Meaning the znode name should be small not very large names or there
> shouldn't be a dot or underscore within the word?
>
> Anything like that?
>
> I will be using Apache Curator.
>
>
>
>
> On Wed, Nov 6, 2013 at 11:24 AM, Techy Teck <comptechgeeky@gmail.com>
> wrote:
>
>> Is there any best practices that we need to follow while creating the
>> znodes?
>>
>> Meaning the znode name should be small not very large names or there
>> shouldn't be a dot or underscore within the word?
>>
>> Anything like that?
>>
>>
>
>

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<div dir=3D"ltr"><div><div><div>Hi Jordan,<br><br></div>I was looking at th=
is email which you sent me long time back. Here you mentioned=C2=A0 - If I =
call getChildren(), the entire length of all the children can&#39;t exceed =
1MB. Suppose, I have 500 clients as client_0, client_1 etc. And each client=
 has 50-60 znodes with some data in it.<br><br></div>List&lt;String&gt; chi=
ldren =3D client.getData().forPath(&quot;/root/clients/&quot;);<br><br>So b=
y length here you mean, actual znode name of all clients? Or something else=
?<br><br></div>Actually I am confuse what does length the the entire length=
 of all the children means? Does it mean data also within each node or just=
 the zookeeper=C2=A0 path of those node.<br><div><br></div></div><div class=
=3D"gmail_extra"><br><div class=3D"gmail_quote">On Thu, Nov 7, 2013 at 10:5=
7 AM, Jordan Zimmerman <span dir=3D"ltr">&lt;<a href=3D"mailto:jordan@jorda=
nzimmerman.com" target=3D"_blank">jordan@jordanzimmerman.com</a>&gt;</span>=
 wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;bor=
der-left:1px #ccc solid;padding-left:1ex"><div style=3D"word-wrap:break-wor=
d"><div>There are very few limitations on naming. You can&#39;t use a slash=
. Have a look at:</div><div><br></div><div><span style=3D"white-space:pre-w=
rap">	</span>org.apache.zookeeper.common.PathUtils</div><div><br></div><div=
>In terms of length, ZooKeeper has a 1MB limit per API call. So, for exampl=
e, if you call getChildren(), the entire length of all the children can&#39=
;t exceed 1MB (unless you reconfigure ZK).</div><span class=3D"HOEnZb"><fon=
t color=3D"#888888"><div><br></div><div>-JZ</div></font></span><div><div cl=
ass=3D"h5"><br><div><div>On Nov 7, 2013, at 10:45 AM, Techy Teck &lt;<a hre=
f=3D"mailto:comptechgeeky@gmail.com" target=3D"_blank">comptechgeeky@gmail.=
com</a>&gt; wrote:</div><br><blockquote type=3D"cite"><div dir=3D"ltr"><div=
>Can anyone help me on this?<br><br><div>Is there any best practices that w=
e need to follow while creating the znodes?<br><br>Meaning the znode name s=
hould be small not very large names or there shouldn&#39;t be a dot or unde=
rscore within the word?<br>


<br></div>Anything like that?<br><br></div>I will be using Apache Curator.<=
br><br><br></div><div class=3D"gmail_extra"><br><br><div class=3D"gmail_quo=
te">On Wed, Nov 6, 2013 at 11:24 AM, Techy Teck <span dir=3D"ltr">&lt;<a hr=
ef=3D"mailto:comptechgeeky@gmail.com" target=3D"_blank">comptechgeeky@gmail=
.com</a>&gt;</span> wrote:<br>

<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div>Is there any best prac=
tices that we need to follow while creating the znodes?<br><br>Meaning the =
znode name should be small not very large names or there shouldn&#39;t be a=
 dot or underscore within the word?<br>


<br></div>Anything like that?<br><br></div>
</blockquote></div><br></div>
</blockquote></div><br></div></div></div></blockquote></div><br></div>

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