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Posted to user@zookeeper.apache.org by Zili Chen <wa...@gmail.com> on 2019/08/26 12:02:15 UTC
Migrate from 3.4.x to 3.5.5
Hi,
Is there any migration guide for potentially breaking changes and how to
deal with them?
Best,
tison.
Re: Migrate from 3.4.x to 3.5.5
Posted by Zili Chen <wa...@gmail.com>.
Hi Kathryn,
Given 3.5 servers know every packet from 3.4 client, I think it should work
well.
Best,
tison.
Kathryn Hogg <Ka...@oati.net> 于2019年9月4日周三 下午11:07写道：
> Question about the opposite: We have some C# clients using ZookeeperNetEx
> which hasn't released a 3.5 version yet. Will 3.4 clients work with 3.5
> servers?
>
> --
> Kathryn Hogg
> Senior Technology Architect
>
>
> -----Original Message-----
> From: Andor Molnar [mailto:andor@apache.org]
> Sent: Wednesday, September 4, 2019 9:52 AM
> To: user@zookeeper.apache.org
> Subject: Re: Migrate from 3.4.x to 3.5.5
>
> {External email message: This email is from an external source. Please
> exercise caution prior to opening attachments, clicking on links, or
> providing any sensitive information.}
>
> Hi Zili,
>
> "If so, it seems upgrade client side force user to upgrade server side
> also.”
>
> Yes, if client is upgraded _and_ user wants to use a new feature in 3.5,
> then server side has to be upgraded too. ;)
>
> Andor
>
>
>
> > On 2019. Sep 3., at 13:20, Zili Chen <wa...@gmail.com> wrote:
> >
> > If so, it seems upgrade client side force user to upgrade server side
> > also.
>
>
Re: Migrate from 3.4.x to 3.5.5
Posted by Zili Chen <wa...@gmail.com>.
Here is an issue that might be regarded as incompatible[1]. Briefly, we
forbid 4 letter word by default since 3.5.3,
for those code that rely on this feature code fails with a bump.
Best,
tison.
[1]
https://issues.apache.org/jira/browse/FLINK-13417?focusedCommentId=16928316&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16928316
Kathryn Hogg <Ka...@oati.net> 于2019年9月9日周一 下午9:26写道：
> Unfortunately, it’s a one person project and I believe the maintainer has
> stated that he's not using .Net any more so it doesn't get a lot of
> attention. I've sent some bug fixes -- most notably the patch I submitted
> to Zookeeper for the bug in the lock recipe -- but he's reticent to include
> patches that aren't in ZK core. So I was maintaining an internal fork at
> work.
>
> Also, my duties at work changed last winter and I'm no longer working on
> .Net things so I've had limited time to do a ZK 3.5.x upgrade myself or
> work on my Curator port to .Net.
>
> --
> Kathryn Hogg
> Senior Technology Architect
>
>
> -----Original Message-----
> From: Andor Molnar [mailto:andor@apache.org]
> Sent: Saturday, September 7, 2019 3:04 PM
> To: user@zookeeper.apache.org
> Subject: Re: Migrate from 3.4.x to 3.5.5
>
> {External email message: This email is from an external source. Please
> exercise caution prior to opening attachments, clicking on links, or
> providing any sensitive information.}
>
> Hi Kathryn,
>
> Are you a contributor of that .Net client? Is it officially supported by
> Microsoft?
> Would it make sense to merge it into the main repository at some point?
>
> Andor
>
>
> -----Original Message-----
> From: Kathryn Hogg <Ka...@oati.net>
> Reply-To: user@zookeeper.apache.org
> To: user@zookeeper.apache.org <us...@zookeeper.apache.org>
> Subject: RE: Migrate from 3.4.x to 3.5.5
> Date: Thu, 5 Sep 2019 13:13:15 +0000
>
> Thanks! That buys me some time from having to fork ZookeeperNetEx and do
> a 3.5.x port myself. Additionally, it should allow me to use Kafka with a
> 3.5.x zookeeper.
> --Kathryn HoggSenior Technology Architect
>
> -----Original Message-----From: Andor Molnar [mailto:andor@apache.org]
> Sent: Thursday, September 5, 2019 12:42 AMTo: user@zookeeper.apache.org
> Subject: Re: Migrate from 3.4.x to 3.5.5 {External email message: This
> email is from an external source. Please exercise caution prior to opening
> attachments, clicking on links, or providing any sensitive information.} Hi
> Kathryn, That way should work without problems.
> Andor
>
> -----Original Message-----From: Kathryn Hogg <Ka...@oati.net>Rep
> ly-To: user@zookeeper.apache.org
> To: user@zookeeper.apache.org <us...@zookeeper.apache.org>Subject: RE:
> Migrate from 3.4.x to 3.5.5Date: Wed, 4 Sep 2019 15:07:11 +0000 Question
> about the opposite: We have some C# clients using ZookeeperNetEx which
> hasn't released a 3.5 version yet. Will 3.4 clients work with 3.5
> servers?--Kathryn HoggSenior Technology Architect -----Original
> Message-----From: Andor Molnar [mailto:andor@apache.org]S
> ent: Wednesday, September 4, 2019 9:52 AMTo: user@zookeeper.apache.org
> Subject: Re: Migrate from 3.4.x to 3.5.5 {External email message: This
> email is from an external source. Please exercise caution prior to opening
> attachments, clicking on links, or providing any sensitive information.} Hi
> Zili, "If so, it seems upgrade client side force user to upgrade server
> side also.”Yes, if client is upgraded _and_ user wants to use a new feature
> in 3.5, then server side has to be upgraded too. ;) Andor
>
> > On 2019. Sep 3., at 13:20, Zili Chen <wa...@gmail.com> wrote:If
> > so, it seems upgrade client side force user to upgrade server side
> > also.
>
>
>
RE: Migrate from 3.4.x to 3.5.5
Posted by Kathryn Hogg <Ka...@oati.net>.
Unfortunately, it’s a one person project and I believe the maintainer has stated that he's not using .Net any more so it doesn't get a lot of attention. I've sent some bug fixes -- most notably the patch I submitted to Zookeeper for the bug in the lock recipe -- but he's reticent to include patches that aren't in ZK core. So I was maintaining an internal fork at work.
Also, my duties at work changed last winter and I'm no longer working on .Net things so I've had limited time to do a ZK 3.5.x upgrade myself or work on my Curator port to .Net.
--
Kathryn Hogg
Senior Technology Architect
-----Original Message-----
From: Andor Molnar [mailto:andor@apache.org]
Sent: Saturday, September 7, 2019 3:04 PM
To: user@zookeeper.apache.org
Subject: Re: Migrate from 3.4.x to 3.5.5
{External email message: This email is from an external source. Please exercise caution prior to opening attachments, clicking on links, or providing any sensitive information.}
Hi Kathryn,
Are you a contributor of that .Net client? Is it officially supported by Microsoft?
Would it make sense to merge it into the main repository at some point?
Andor
-----Original Message-----
From: Kathryn Hogg <Ka...@oati.net>
Reply-To: user@zookeeper.apache.org
To: user@zookeeper.apache.org <us...@zookeeper.apache.org>
Subject: RE: Migrate from 3.4.x to 3.5.5
Date: Thu, 5 Sep 2019 13:13:15 +0000
Thanks! That buys me some time from having to fork ZookeeperNetEx and do a 3.5.x port myself. Additionally, it should allow me to use Kafka with a 3.5.x zookeeper.
--Kathryn HoggSenior Technology Architect
-----Original Message-----From: Andor Molnar [mailto:andor@apache.org]
Sent: Thursday, September 5, 2019 12:42 AMTo: user@zookeeper.apache.org
Subject: Re: Migrate from 3.4.x to 3.5.5 {External email message: This email is from an external source. Please exercise caution prior to opening attachments, clicking on links, or providing any sensitive information.} Hi Kathryn, That way should work without problems.
Andor
-----Original Message-----From: Kathryn Hogg <Ka...@oati.net>Rep
ly-To: user@zookeeper.apache.org
To: user@zookeeper.apache.org <us...@zookeeper.apache.org>Subject: RE:
Migrate from 3.4.x to 3.5.5Date: Wed, 4 Sep 2019 15:07:11 +0000 Question about the opposite: We have some C# clients using ZookeeperNetEx which hasn't released a 3.5 version yet. Will 3.4 clients work with 3.5 servers?--Kathryn HoggSenior Technology Architect -----Original Message-----From: Andor Molnar [mailto:andor@apache.org]S
ent: Wednesday, September 4, 2019 9:52 AMTo: user@zookeeper.apache.org
Subject: Re: Migrate from 3.4.x to 3.5.5 {External email message: This email is from an external source. Please exercise caution prior to opening attachments, clicking on links, or providing any sensitive information.} Hi Zili, "If so, it seems upgrade client side force user to upgrade server side also.”Yes, if client is upgraded _and_ user wants to use a new feature in 3.5, then server side has to be upgraded too. ;) Andor
> On 2019. Sep 3., at 13:20, Zili Chen <wa...@gmail.com> wrote:If
> so, it seems upgrade client side force user to upgrade server side
> also.
Re: Migrate from 3.4.x to 3.5.5
Posted by Andor Molnar <an...@apache.org>.
Hi Kathryn,
Are you a contributor of that .Net client? Is it officially supported
by Microsoft?
Would it make sense to merge it into the main repository at some point?
Andor
-----Original Message-----
From: Kathryn Hogg <Ka...@oati.net>
Reply-To: user@zookeeper.apache.org
To: user@zookeeper.apache.org <us...@zookeeper.apache.org>
Subject: RE: Migrate from 3.4.x to 3.5.5
Date: Thu, 5 Sep 2019 13:13:15 +0000
Thanks! That buys me some time from having to fork ZookeeperNetEx and
do a 3.5.x port myself. Additionally, it should allow me to use Kafka
with a 3.5.x zookeeper.
--Kathryn HoggSenior Technology Architect
-----Original Message-----From: Andor Molnar [mailto:andor@apache.org]
Sent: Thursday, September 5, 2019 12:42 AMTo: user@zookeeper.apache.org
Subject: Re: Migrate from 3.4.x to 3.5.5
{External email message: This email is from an external source. Please
exercise caution prior to opening attachments, clicking on links, or
providing any sensitive information.}
Hi Kathryn,
That way should work without problems.
Andor
-----Original Message-----From: Kathryn Hogg <Ka...@oati.net>Rep
ly-To: user@zookeeper.apache.org
To: user@zookeeper.apache.org <us...@zookeeper.apache.org>Subject: RE:
Migrate from 3.4.x to 3.5.5Date: Wed, 4 Sep 2019 15:07:11 +0000
Question about the opposite: We have some C# clients using
ZookeeperNetEx which hasn't released a 3.5 version yet. Will 3.4
clients work with 3.5 servers?--Kathryn HoggSenior Technology Architect
-----Original Message-----From: Andor Molnar [mailto:andor@apache.org]S
ent: Wednesday, September 4, 2019 9:52 AMTo: user@zookeeper.apache.org
Subject: Re: Migrate from 3.4.x to 3.5.5 {External email message: This
email is from an external source. Please exercise caution prior to
opening attachments, clicking on links, or providing any sensitive
information.} Hi Zili, "If so, it seems upgrade client side force user
to upgrade server side also.”Yes, if client is upgraded _and_ user
wants to use a new feature in 3.5, then server side has to be upgraded
too. ;) Andor
> On 2019. Sep 3., at 13:20, Zili Chen <wa...@gmail.com> wrote:If
> so, it seems upgrade client side force user to upgrade server side
> also.
RE: Migrate from 3.4.x to 3.5.5
Posted by Kathryn Hogg <Ka...@oati.net>.
Thanks! That buys me some time from having to fork ZookeeperNetEx and do a 3.5.x port myself. Additionally, it should allow me to use Kafka with a 3.5.x zookeeper.
--
Kathryn Hogg
Senior Technology Architect
-----Original Message-----
From: Andor Molnar [mailto:andor@apache.org]
Sent: Thursday, September 5, 2019 12:42 AM
To: user@zookeeper.apache.org
Subject: Re: Migrate from 3.4.x to 3.5.5
{External email message: This email is from an external source. Please exercise caution prior to opening attachments, clicking on links, or providing any sensitive information.}
Hi Kathryn,
That way should work without problems.
Andor
-----Original Message-----
From: Kathryn Hogg <Ka...@oati.net>
Reply-To: user@zookeeper.apache.org
To: user@zookeeper.apache.org <us...@zookeeper.apache.org>
Subject: RE: Migrate from 3.4.x to 3.5.5
Date: Wed, 4 Sep 2019 15:07:11 +0000
Question about the opposite: We have some C# clients using ZookeeperNetEx which hasn't released a 3.5 version yet. Will 3.4 clients work with 3.5 servers?
--Kathryn HoggSenior Technology Architect
-----Original Message-----From: Andor Molnar [mailto:andor@apache.org]
Sent: Wednesday, September 4, 2019 9:52 AMTo: user@zookeeper.apache.org
Subject: Re: Migrate from 3.4.x to 3.5.5 {External email message: This email is from an external source. Please exercise caution prior to opening attachments, clicking on links, or providing any sensitive information.} Hi Zili, "If so, it seems upgrade client side force user to upgrade server side also.”
Yes, if client is upgraded _and_ user wants to use a new feature in 3.5, then server side has to be upgraded too. ;) Andor
> On 2019. Sep 3., at 13:20, Zili Chen <wa...@gmail.com> wrote:
> If so, it seems upgrade client side force user to upgrade server side
> also.
Re: Migrate from 3.4.x to 3.5.5
Posted by Andor Molnar <an...@apache.org>.
Hi Kathryn,
That way should work without problems.
Andor
-----Original Message-----
From: Kathryn Hogg <Ka...@oati.net>
Reply-To: user@zookeeper.apache.org
To: user@zookeeper.apache.org <us...@zookeeper.apache.org>
Subject: RE: Migrate from 3.4.x to 3.5.5
Date: Wed, 4 Sep 2019 15:07:11 +0000
Question about the opposite: We have some C# clients using
ZookeeperNetEx which hasn't released a 3.5 version yet. Will 3.4
clients work with 3.5 servers?
--Kathryn HoggSenior Technology Architect
-----Original Message-----From: Andor Molnar [mailto:andor@apache.org]
Sent: Wednesday, September 4, 2019 9:52 AMTo: user@zookeeper.apache.org
Subject: Re: Migrate from 3.4.x to 3.5.5
{External email message: This email is from an external source. Please
exercise caution prior to opening attachments, clicking on links, or
providing any sensitive information.}
Hi Zili,
"If so, it seems upgrade client side force user to upgrade server side
also.”
Yes, if client is upgraded _and_ user wants to use a new feature in
3.5, then server side has to be upgraded too. ;)
Andor
> On 2019. Sep 3., at 13:20, Zili Chen <wa...@gmail.com> wrote:
> If so, it seems upgrade client side force user to upgrade server side
> also.
RE: Migrate from 3.4.x to 3.5.5
Posted by Kathryn Hogg <Ka...@oati.net>.
Question about the opposite: We have some C# clients using ZookeeperNetEx which hasn't released a 3.5 version yet. Will 3.4 clients work with 3.5 servers?
--
Kathryn Hogg
Senior Technology Architect
-----Original Message-----
From: Andor Molnar [mailto:andor@apache.org]
Sent: Wednesday, September 4, 2019 9:52 AM
To: user@zookeeper.apache.org
Subject: Re: Migrate from 3.4.x to 3.5.5
{External email message: This email is from an external source. Please exercise caution prior to opening attachments, clicking on links, or providing any sensitive information.}
Hi Zili,
"If so, it seems upgrade client side force user to upgrade server side also.”
Yes, if client is upgraded _and_ user wants to use a new feature in 3.5, then server side has to be upgraded too. ;)
Andor
> On 2019. Sep 3., at 13:20, Zili Chen <wa...@gmail.com> wrote:
>
> If so, it seems upgrade client side force user to upgrade server side
> also.
Re: Migrate from 3.4.x to 3.5.5
Posted by Andor Molnar <an...@apache.org>.
Hi Zili,
"If so, it seems upgrade client side force
user to upgrade server side also.”
Yes, if client is upgraded _and_ user wants to use a new feature in 3.5, then server side has to be upgraded too. ;)
Andor
> On 2019. Sep 3., at 13:20, Zili Chen <wa...@gmail.com> wrote:
>
> If so, it seems upgrade client side force
> user to upgrade server side also.
Re: Migrate from 3.4.x to 3.5.5
Posted by Enrico Olivelli <eo...@gmail.com>.
Il mar 3 set 2019, 13:45 Norbert Kalmar <nk...@cloudera.com.invalid> ha
scritto:
> In my opinion we should not fallback to something else if the client wants
> a CONTAINER node, which is a new feature in 3.5.
>
+1
Enrico
> This makes ZooKeeper behave kind of unreliable. Client wants a CONTAINER
> node, and gets a PERSISTENT one. How should client handle this?
>
> For me, throwing an error seems more reasonable. And this doesn't brake
> backward compatibleness, as if you upgrade your client, you are still able
> to do the things you did with previous version. Just not the new feature
> stuff.
>
> Regards,
> Norbert
>
> On Tue, Sep 3, 2019 at 1:22 PM Zili Chen <wa...@gmail.com> wrote:
>
> > Well, we cannot make any reasonable fallback from a previous version,
> > but isn't it regraded as a break changes?
> >
> > Best,
> > tison.
> >
> >
> > Zili Chen <wa...@gmail.com> 于2019年9月3日周二 下午7:20写道：
> >
> > > Hi here,
> > >
> > > If I communicate quorums running zk 3.4 with a zk 3.5 client, when I am
> > > trying to create node in CONTAINER mode the quorums will compliant
> > > with KeeperException.UnimplementedException.
> > >
> > > That is to say, as a client application, if I upgrade zk to 3.5 and
> then
> > > make use of this new feature, we doesn't have a fallback when zk server
> > > version is 3.4 to PERSISTENT or something like that, but just fail with
> > > an exception. Is it expected? If so, it seems upgrade client side force
> > > user to upgrade server side also.
> > >
> > > Best,
> > > tison.
> > >
> > >
> > > Zili Chen <wa...@gmail.com> 于2019年8月26日周一 下午8:47写道：
> > >
> > >> Thanks for your insight Andor!
> > >>
> > >> I'll checkout the page :-)
> > >>
> > >> Best,
> > >> tison.
> > >>
> > >>
> > >> Andor Molnar <an...@apache.org> 于2019年8月26日周一 下午8:41写道：
> > >>
> > >>> Hi Zili,
> > >>>
> > >>> There’s no migration guide available for 3.5, because it shouldn’t
> > break
> > >>> any existing functionality and no need to upgrade the database
> either.
> > >>>
> > >>> I’ve created a wiki page to collect upgrade experiences from users
> > which
> > >>> could give you some hint if you’re facing problems:
> > >>> https://cwiki.apache.org/confluence/display/ZOOKEEPER/Upgrade+FAQ
> > >>>
> > >>> You can always drop an email here too to get help.
> > >>>
> > >>> Andor
> > >>>
> > >>>
> > >>>
> > >>> > On 2019. Aug 26., at 14:12, Zili Chen <wa...@gmail.com>
> wrote:
> > >>> >
> > >>> > Detailedly, in Flink community we try to bump ZooKeeper version
> from
> > >>> 3.4.10
> > >>> > to 3.5.5 but without accurate idea about how it would break
> existing
> > >>> > systems.
> > >>> > Mainly we make use of the "client" of ZooKeeper.
> > >>> >
> > >>> >
> > >>> > Zili Chen <wa...@gmail.com> 于2019年8月26日周一 下午8:02写道：
> > >>> >
> > >>> >> Hi,
> > >>> >>
> > >>> >> Is there any migration guide for potentially breaking changes and
> > how
> > >>> to
> > >>> >> deal with them?
> > >>> >>
> > >>> >> Best,
> > >>> >> tison.
> > >>> >>
> > >>>
> > >>>
> >
>
Re: Migrate from 3.4.x to 3.5.5
Posted by Norbert Kalmar <nk...@cloudera.com.INVALID>.
In my opinion we should not fallback to something else if the client wants
a CONTAINER node, which is a new feature in 3.5.
This makes ZooKeeper behave kind of unreliable. Client wants a CONTAINER
node, and gets a PERSISTENT one. How should client handle this?
For me, throwing an error seems more reasonable. And this doesn't brake
backward compatibleness, as if you upgrade your client, you are still able
to do the things you did with previous version. Just not the new feature
stuff.
Regards,
Norbert
On Tue, Sep 3, 2019 at 1:22 PM Zili Chen <wa...@gmail.com> wrote:
> Well, we cannot make any reasonable fallback from a previous version,
> but isn't it regraded as a break changes?
>
> Best,
> tison.
>
>
> Zili Chen <wa...@gmail.com> 于2019年9月3日周二 下午7:20写道：
>
> > Hi here,
> >
> > If I communicate quorums running zk 3.4 with a zk 3.5 client, when I am
> > trying to create node in CONTAINER mode the quorums will compliant
> > with KeeperException.UnimplementedException.
> >
> > That is to say, as a client application, if I upgrade zk to 3.5 and then
> > make use of this new feature, we doesn't have a fallback when zk server
> > version is 3.4 to PERSISTENT or something like that, but just fail with
> > an exception. Is it expected? If so, it seems upgrade client side force
> > user to upgrade server side also.
> >
> > Best,
> > tison.
> >
> >
> > Zili Chen <wa...@gmail.com> 于2019年8月26日周一 下午8:47写道：
> >
> >> Thanks for your insight Andor!
> >>
> >> I'll checkout the page :-)
> >>
> >> Best,
> >> tison.
> >>
> >>
> >> Andor Molnar <an...@apache.org> 于2019年8月26日周一 下午8:41写道：
> >>
> >>> Hi Zili,
> >>>
> >>> There’s no migration guide available for 3.5, because it shouldn’t
> break
> >>> any existing functionality and no need to upgrade the database either.
> >>>
> >>> I’ve created a wiki page to collect upgrade experiences from users
> which
> >>> could give you some hint if you’re facing problems:
> >>> https://cwiki.apache.org/confluence/display/ZOOKEEPER/Upgrade+FAQ
> >>>
> >>> You can always drop an email here too to get help.
> >>>
> >>> Andor
> >>>
> >>>
> >>>
> >>> > On 2019. Aug 26., at 14:12, Zili Chen <wa...@gmail.com> wrote:
> >>> >
> >>> > Detailedly, in Flink community we try to bump ZooKeeper version from
> >>> 3.4.10
> >>> > to 3.5.5 but without accurate idea about how it would break existing
> >>> > systems.
> >>> > Mainly we make use of the "client" of ZooKeeper.
> >>> >
> >>> >
> >>> > Zili Chen <wa...@gmail.com> 于2019年8月26日周一 下午8:02写道：
> >>> >
> >>> >> Hi,
> >>> >>
> >>> >> Is there any migration guide for potentially breaking changes and
> how
> >>> to
> >>> >> deal with them?
> >>> >>
> >>> >> Best,
> >>> >> tison.
> >>> >>
> >>>
> >>>
>
Re: Migrate from 3.4.x to 3.5.5
Posted by Zili Chen <wa...@gmail.com>.
Well, we cannot make any reasonable fallback from a previous version,
but isn't it regraded as a break changes?
Best,
tison.
Zili Chen <wa...@gmail.com> 于2019年9月3日周二 下午7:20写道：
> Hi here,
>
> If I communicate quorums running zk 3.4 with a zk 3.5 client, when I am
> trying to create node in CONTAINER mode the quorums will compliant
> with KeeperException.UnimplementedException.
>
> That is to say, as a client application, if I upgrade zk to 3.5 and then
> make use of this new feature, we doesn't have a fallback when zk server
> version is 3.4 to PERSISTENT or something like that, but just fail with
> an exception. Is it expected? If so, it seems upgrade client side force
> user to upgrade server side also.
>
> Best,
> tison.
>
>
> Zili Chen <wa...@gmail.com> 于2019年8月26日周一 下午8:47写道：
>
>> Thanks for your insight Andor!
>>
>> I'll checkout the page :-)
>>
>> Best,
>> tison.
>>
>>
>> Andor Molnar <an...@apache.org> 于2019年8月26日周一 下午8:41写道：
>>
>>> Hi Zili,
>>>
>>> There’s no migration guide available for 3.5, because it shouldn’t break
>>> any existing functionality and no need to upgrade the database either.
>>>
>>> I’ve created a wiki page to collect upgrade experiences from users which
>>> could give you some hint if you’re facing problems:
>>> https://cwiki.apache.org/confluence/display/ZOOKEEPER/Upgrade+FAQ
>>>
>>> You can always drop an email here too to get help.
>>>
>>> Andor
>>>
>>>
>>>
>>> > On 2019. Aug 26., at 14:12, Zili Chen <wa...@gmail.com> wrote:
>>> >
>>> > Detailedly, in Flink community we try to bump ZooKeeper version from
>>> 3.4.10
>>> > to 3.5.5 but without accurate idea about how it would break existing
>>> > systems.
>>> > Mainly we make use of the "client" of ZooKeeper.
>>> >
>>> >
>>> > Zili Chen <wa...@gmail.com> 于2019年8月26日周一 下午8:02写道：
>>> >
>>> >> Hi,
>>> >>
>>> >> Is there any migration guide for potentially breaking changes and how
>>> to
>>> >> deal with them?
>>> >>
>>> >> Best,
>>> >> tison.
>>> >>
>>>
>>>
Re: Migrate from 3.4.x to 3.5.5
Posted by Zili Chen <wa...@gmail.com>.
Hi here,
If I communicate quorums running zk 3.4 with a zk 3.5 client, when I am
trying to create node in CONTAINER mode the quorums will compliant
with KeeperException.UnimplementedException.
That is to say, as a client application, if I upgrade zk to 3.5 and then
make use of this new feature, we doesn't have a fallback when zk server
version is 3.4 to PERSISTENT or something like that, but just fail with
an exception. Is it expected? If so, it seems upgrade client side force
user to upgrade server side also.
Best,
tison.
Zili Chen <wa...@gmail.com> 于2019年8月26日周一 下午8:47写道：
> Thanks for your insight Andor!
>
> I'll checkout the page :-)
>
> Best,
> tison.
>
>
> Andor Molnar <an...@apache.org> 于2019年8月26日周一 下午8:41写道：
>
>> Hi Zili,
>>
>> There’s no migration guide available for 3.5, because it shouldn’t break
>> any existing functionality and no need to upgrade the database either.
>>
>> I’ve created a wiki page to collect upgrade experiences from users which
>> could give you some hint if you’re facing problems:
>> https://cwiki.apache.org/confluence/display/ZOOKEEPER/Upgrade+FAQ
>>
>> You can always drop an email here too to get help.
>>
>> Andor
>>
>>
>>
>> > On 2019. Aug 26., at 14:12, Zili Chen <wa...@gmail.com> wrote:
>> >
>> > Detailedly, in Flink community we try to bump ZooKeeper version from
>> 3.4.10
>> > to 3.5.5 but without accurate idea about how it would break existing
>> > systems.
>> > Mainly we make use of the "client" of ZooKeeper.
>> >
>> >
>> > Zili Chen <wa...@gmail.com> 于2019年8月26日周一 下午8:02写道：
>> >
>> >> Hi,
>> >>
>> >> Is there any migration guide for potentially breaking changes and how
>> to
>> >> deal with them?
>> >>
>> >> Best,
>> >> tison.
>> >>
>>
>>
Re: Migrate from 3.4.x to 3.5.5
Posted by Zili Chen <wa...@gmail.com>.
Thanks for your insight Andor!
I'll checkout the page :-)
Best,
tison.
Andor Molnar <an...@apache.org> 于2019年8月26日周一 下午8:41写道：
> Hi Zili,
>
> There’s no migration guide available for 3.5, because it shouldn’t break
> any existing functionality and no need to upgrade the database either.
>
> I’ve created a wiki page to collect upgrade experiences from users which
> could give you some hint if you’re facing problems:
> https://cwiki.apache.org/confluence/display/ZOOKEEPER/Upgrade+FAQ
>
> You can always drop an email here too to get help.
>
> Andor
>
>
>
> > On 2019. Aug 26., at 14:12, Zili Chen <wa...@gmail.com> wrote:
> >
> > Detailedly, in Flink community we try to bump ZooKeeper version from
> 3.4.10
> > to 3.5.5 but without accurate idea about how it would break existing
> > systems.
> > Mainly we make use of the "client" of ZooKeeper.
> >
> >
> > Zili Chen <wa...@gmail.com> 于2019年8月26日周一 下午8:02写道：
> >
> >> Hi,
> >>
> >> Is there any migration guide for potentially breaking changes and how to
> >> deal with them?
> >>
> >> Best,
> >> tison.
> >>
>
>
Re: Migrate from 3.4.x to 3.5.5
Posted by Andor Molnar <an...@apache.org>.
Hi Zili,
There’s no migration guide available for 3.5, because it shouldn’t break any existing functionality and no need to upgrade the database either.
I’ve created a wiki page to collect upgrade experiences from users which could give you some hint if you’re facing problems: https://cwiki.apache.org/confluence/display/ZOOKEEPER/Upgrade+FAQ
You can always drop an email here too to get help.
Andor
> On 2019. Aug 26., at 14:12, Zili Chen <wa...@gmail.com> wrote:
>
> Detailedly, in Flink community we try to bump ZooKeeper version from 3.4.10
> to 3.5.5 but without accurate idea about how it would break existing
> systems.
> Mainly we make use of the "client" of ZooKeeper.
>
>
> Zili Chen <wa...@gmail.com> 于2019年8月26日周一 下午8:02写道：
>
>> Hi,
>>
>> Is there any migration guide for potentially breaking changes and how to
>> deal with them?
>>
>> Best,
>> tison.
>>
Re: Migrate from 3.4.x to 3.5.5
Posted by Zili Chen <wa...@gmail.com>.
Detailedly, in Flink community we try to bump ZooKeeper version from 3.4.10
to 3.5.5 but without accurate idea about how it would break existing
systems.
Mainly we make use of the "client" of ZooKeeper.
Zili Chen <wa...@gmail.com> 于2019年8月26日周一 下午8:02写道：
> Hi,
>
> Is there any migration guide for potentially breaking changes and how to
> deal with them?
>
> Best,
> tison.
>