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Date: Mon, 30 May 2016 17:28:15 +0300
Message-ID: <CAMegbcKb6rdyu_LiuMdiS4h66K7WYV1WuDABHR5F__CxCLEr5w@mail.gmail.com>
Subject: Re: How to update Ignite config in Production Environment
From: Alexei Scherbakov <alexey.scherbakoff@gmail.com>
To: user@ignite.apache.org
Content-Type: multipart/alternative; boundary=001a114f55cc29dbff0534101119
archived-at: Mon, 30 May 2016 14:28:20 -0000

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Hi,

1. You can destroy cache (IgniteCache.destroy) and recreate it dynamically
with new configuration.
Data must be backed up somethere(on example in the other cache) until the
process is finished.
Don't forget to update Ignite's startup configurations on all server nodes
or you will lose changes on restart.

2. Ignite validates cluster configuration on the node join. If
configuration of the node is not compatible with the current
it not will not be allowed to join topology.

2016-05-30 15:45 GMT+03:00 =E5=BC=A0=E9=B9=8F=E9=B9=8F <zhangpp520@gmail.co=
m>:

>  Hi,I have some questions about using Ignite in the  production
> environment.
>
> 1=E3=80=81I have 3 Ignite nodes as Server,My Java application uses Ignite=
 as
> client.
>      Now,I just use Ignite as JCache implements.
>
>      When I want to update the Cache config,like adding indexs,What's the
> best way to do it?
>
>      I don't want to lost data in the server,So,I replace server@1's
> config,then restart it.I must wait data rebalancing finish.Then I do the
> same to the server@2 and so on!
>
>      I want to do it automatic.But How can I get the rebalancing finishin=
g
> event in Linux console?
> And Is it the only way to update the config If I don't want to lose the
> cache data?
>
>
>
> 2=E3=80=81If the server config is different,which one is valid?Is it the =
last
> started one?
>
>      Today,I restarted Ignite server by mistake.I used old config to
> restart one node in the Clusters.
>     The scenes is:
>     server@1  -- old config  --restart
>     server@2  -- old config
>     server@3  -- new config
>
>     server@1 and server@2 are using old config,server@3 is using new
> config.
>   I restart server@1 by mistake.
>
>
>  Then My application appeard
> "Cannot find metadata for object with compact footer: 1236746791"
>  exception.
>
>  The server occured exceptions too,and the cache couldn't use anymore.
>
>  Finally,I killed all the application used Ignite client,then update all
> the Ignite config  and restart all the Ignite Server.
>
>
> I don't know why I must kill all the Ignite client so I can restart the
> Ignite server  correctly.
>
>
>
>
>
>
>
>
>


--=20

Best regards,
Alexei Scherbakov

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<div dir=3D"ltr">Hi,<div><br></div><div>1. You can destroy cache (IgniteCac=
he.destroy) and recreate it dynamically with new configuration.</div><div>D=
ata must be backed up somethere(on example in the other cache) until the pr=
ocess is finished.</div><div>Don&#39;t forget to update Ignite&#39;s startu=
p configurations on all server nodes or you will lose changes on restart.</=
div><div><br></div><div>2. Ignite validates cluster configuration on the no=
de join. If configuration of the node is not compatible with the current</d=
iv><div>it not will not be allowed to join topology.</div><div class=3D"gma=
il_extra"><br><div class=3D"gmail_quote">2016-05-30 15:45 GMT+03:00 =E5=BC=
=A0=E9=B9=8F=E9=B9=8F <span dir=3D"ltr">&lt;<a href=3D"mailto:zhangpp520@gm=
ail.com" target=3D"_blank">zhangpp520@gmail.com</a>&gt;</span>:<br><blockqu=
ote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc s=
olid;padding-left:1ex"><div dir=3D"ltr"><div>=C2=A0Hi,I have some questions=
 about using=C2=A0Ignite=C2=A0in the =C2=A0production environment.</div><di=
v><br></div><div>1=E3=80=81I have 3 Ignite nodes as Server,My Java applicat=
ion uses Ignite as client.</div><div>=C2=A0 =C2=A0 =C2=A0Now,I just use Ign=
ite as JCache implements.</div><div><br></div><div>=C2=A0 =C2=A0 =C2=A0When=
 I want to update the Cache config,like adding indexs,What&#39;s the best w=
ay to do it?</div><div><br></div><div>=C2=A0 =C2=A0 =C2=A0I don&#39;t want =
to lost data in the server,So,I replace server@1&#39;s config,then restart =
it.I must wait data rebalancing finish.Then I do the same to the server@2 a=
nd so on!</div><div><br></div><div>=C2=A0 =C2=A0 =C2=A0I want to do it=C2=
=A0automatic.But How can I get the=C2=A0rebalancing=C2=A0finishing event in=
 Linux console?</div><div>And Is it the only way to update the config If I =
don&#39;t want to lose the cache data?</div><div><br></div><div><br></div><=
div><br></div><div>2=E3=80=81If the server config is different,which one is=
=C2=A0valid?Is it the last started one?</div><div><br></div><div>=C2=A0 =C2=
=A0 =C2=A0Today,I restarted Ignite server by mistake.I used old config to r=
estart one node in the Clusters.</div><div>=C2=A0 =C2=A0 The=C2=A0scenes is=
:</div><div>=C2=A0 =C2=A0 server@1 =C2=A0-- old config =C2=A0--restart</div=
><div>=C2=A0 =C2=A0 server@2 =C2=A0-- old config</div><div>=C2=A0 =C2=A0 se=
rver@3 =C2=A0-- new config</div><div><br></div><div><div>=C2=A0 =C2=A0 serv=
er@1 and server@2 are using old config,server@3 is using new config.</div><=
/div><div>=C2=A0 I restart server@1 by mistake.</div><div><br></div><div><b=
r></div><div>=C2=A0Then My application=C2=A0appeard=C2=A0</div><div>&quot;C=
annot=C2=A0find=C2=A0metadata=C2=A0for=C2=A0object=C2=A0with=C2=A0compact=
=C2=A0footer:=C2=A01236746791&quot; =C2=A0exception.</div><div><br></div><d=
iv>=C2=A0The server=C2=A0occured exceptions too,and the cache couldn&#39;t =
use anymore.</div><div><br></div><div>=C2=A0Finally,I killed all the applic=
ation used Ignite client,then update all the=C2=A0Ignite=C2=A0config =C2=A0=
and restart all the Ignite Server.</div><div><br></div><div><br></div><div>=
I don&#39;t know why I must kill all the Ignite client so I can restart the=
 Ignite server =C2=A0correctly.</div><div><br></div><div><br></div><div><br=
></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br=
></div></div>
</blockquote></div><br><br clear=3D"all"><div><br></div>-- <br><div class=
=3D"gmail_signature" data-smartmail=3D"gmail_signature"><div dir=3D"ltr"><d=
iv><div dir=3D"ltr"><div dir=3D"ltr"></div><div><div dir=3D"ltr"><br>Best r=
egards,<br></div><div>Alexei Scherbakov<br></div></div></div></div></div></=
div>
</div></div>

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