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Posted to user@zookeeper.apache.org by Patrick Hunt <ph...@apache.org> on 2010/05/12 20:11:12 UTC
Re: Xid out of order. Got 8 expected 7
Hi Jordan, you've seen this once or frequently? (having the server +
client logs will help alot)
Patrick
On 05/12/2010 11:08 AM, Jordan Zimmerman wrote:
> Sure - if you think it's a bug.
>
> We were using Zookeeper without issue. I then refactored a bunch of
> code and this new behavior started. I'm starting ZK using "zkServer
> start" and haven't made any changes to the code at all.
>
> I'll get the logs together and post a JIRA.
>
> -JZ
>
> On May 12, 2010, at 10:59 AM, Mahadev Konar wrote:
>
>> Hi Jordan, Can you create a jira for this? And attach all the
>> server logs and client logs related to this timeline? How did you
>> start up the servers? Is there some changes you might have made
>> accidentatlly to the servers?
>>
>>
>> Thanks mahadev
>>
>>
>> On 5/12/10 10:49 AM, "Jordan Zimmerman"<jz...@proofpoint.com>
>> wrote:
>>
>>> We've just started seeing an odd error and are having trouble
>>> determining the cause. "Xid out of order. Got 8 expected 7" Any
>>> hints on what can cause this? Any ideas on how to debug?
>>>
>>> We're using ZK 3.3.0. The error occurs in ClientCnxn.java line
>>> 781
>>>
>>> -Jordan
>>
>
Re: Xid out of order. Got 8 expected 7
Posted by Patrick Hunt <ph...@apache.org>.
Hm, if you don't mind enter that jira, would still like to verify by
looking at the logs.
Patrick
On 05/12/2010 11:52 AM, Jordan Zimmerman wrote:
> So, I'm off the Jira hook then?
>
> -JZ
>
> On May 12, 2010, at 11:49 AM, Patrick Hunt wrote:
>
>> You're right. Ben, would you mind entering a JIRA?
>>
>> Patrick
>>
>> On 05/12/2010 11:41 AM, Benjamin Reed wrote:
>>> is this a bug? shouldn't we be returning an error.
>>>
>>> ben
>>>
>>> On 05/12/2010 11:34 AM, Patrick Hunt wrote:
>>>> I think that explains it then - the server is probably dropping the new
>>>> (3.3.0) "getChildren" message (xid 7) as it (3.2.2 server) doesn't know
>>>> about that message type. Then the server responds to the client for a
>>>> subsequent operation (xid 8), and at that point the client notices that
>>>> getChildren (xid 7) got lost.
>>>>
>>>> Patrick
>>>>
>>>> On 05/12/2010 11:30 AM, Jordan Zimmerman wrote:
>>>>> Oh, OK. When I get a moment I'll restart the 3.2.2 and post logs,
>>>>> etc.
>>>>>
>>>>> Yes, we're calling getChildren with the callback.
>>>>>
>>>>> -JZ
>>>>>
>>>>> On May 12, 2010, at 11:28 AM, Patrick Hunt wrote:
>>>>>
>>>>>> I'm still interested though... Are you using the new "getChildren"
>>>>>> api that was added to the client in 3.3.0? (it provides a Stat
>>>>>> object on return, the old getChildren did not). While we don't
>>>>>> officially support 3.3.0 client with 3.2.2 server (we do support
>>>>>> the other way around), there shouldn't be they type of problem with
>>>>>> this configuration as you describe. I'd still be interested for you
>>>>>> to create that jira.
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>> Patrick
>>>>>>
>>>>>> On 05/12/2010 11:23 AM, Jordan Zimmerman wrote:
>>>>>>> Apologies...
>>>>>>>
>>>>>>> I thought I was running 3.3.0 server, but was running 3.2.2
>>>>>>> server with 3.3.0 client. I upgraded the server and now all works
>>>>>>> again. Sorry to trouble y'all.
>>>>>>>
>>>>>>> -Jordan
>>>>>>>
>>>>>>> On May 12, 2010, at 11:11 AM, Patrick Hunt wrote:
>>>>>>>
>>>>>>>> Hi Jordan, you've seen this once or frequently? (having the
>>>>>>>> server + client logs will help alot)
>>>>>>>>
>>>>>>>> Patrick
>>>>>>>>
>>>>>>>> On 05/12/2010 11:08 AM, Jordan Zimmerman wrote:
>>>>>>>>> Sure - if you think it's a bug.
>>>>>>>>>
>>>>>>>>> We were using Zookeeper without issue. I then refactored a
>>>>>>>>> bunch of code and this new behavior started. I'm starting ZK
>>>>>>>>> using "zkServer start" and haven't made any changes to the
>>>>>>>>> code at all.
>>>>>>>>>
>>>>>>>>> I'll get the logs together and post a JIRA.
>>>>>>>>>
>>>>>>>>> -JZ
>>>>>>>>>
>>>>>>>>> On May 12, 2010, at 10:59 AM, Mahadev Konar wrote:
>>>>>>>>>
>>>>>>>>>> Hi Jordan, Can you create a jira for this? And attach all
>>>>>>>>>> the server logs and client logs related to this timeline?
>>>>>>>>>> How did you start up the servers? Is there some changes you
>>>>>>>>>> might have made accidentatlly to the servers?
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Thanks mahadev
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On 5/12/10 10:49 AM, "Jordan
>>>>>>>>>> Zimmerman"<jz...@proofpoint.com> wrote:
>>>>>>>>>>
>>>>>>>>>>> We've just started seeing an odd error and are having
>>>>>>>>>>> trouble determining the cause. "Xid out of order. Got 8
>>>>>>>>>>> expected 7" Any hints on what can cause this? Any ideas
>>>>>>>>>>> on how to debug?
>>>>>>>>>>>
>>>>>>>>>>> We're using ZK 3.3.0. The error occurs in
>>>>>>>>>>> ClientCnxn.java line 781
>>>>>>>>>>>
>>>>>>>>>>> -Jordan
>>>
>
Re: Xid out of order. Got 8 expected 7
Posted by Jordan Zimmerman <jz...@proofpoint.com>.
So, I'm off the Jira hook then?
-JZ
On May 12, 2010, at 11:49 AM, Patrick Hunt wrote:
> You're right. Ben, would you mind entering a JIRA?
>
> Patrick
>
> On 05/12/2010 11:41 AM, Benjamin Reed wrote:
>> is this a bug? shouldn't we be returning an error.
>>
>> ben
>>
>> On 05/12/2010 11:34 AM, Patrick Hunt wrote:
>>> I think that explains it then - the server is probably dropping the new
>>> (3.3.0) "getChildren" message (xid 7) as it (3.2.2 server) doesn't know
>>> about that message type. Then the server responds to the client for a
>>> subsequent operation (xid 8), and at that point the client notices that
>>> getChildren (xid 7) got lost.
>>>
>>> Patrick
>>>
>>> On 05/12/2010 11:30 AM, Jordan Zimmerman wrote:
>>>> Oh, OK. When I get a moment I'll restart the 3.2.2 and post logs,
>>>> etc.
>>>>
>>>> Yes, we're calling getChildren with the callback.
>>>>
>>>> -JZ
>>>>
>>>> On May 12, 2010, at 11:28 AM, Patrick Hunt wrote:
>>>>
>>>>> I'm still interested though... Are you using the new "getChildren"
>>>>> api that was added to the client in 3.3.0? (it provides a Stat
>>>>> object on return, the old getChildren did not). While we don't
>>>>> officially support 3.3.0 client with 3.2.2 server (we do support
>>>>> the other way around), there shouldn't be they type of problem with
>>>>> this configuration as you describe. I'd still be interested for you
>>>>> to create that jira.
>>>>>
>>>>> Regards,
>>>>>
>>>>> Patrick
>>>>>
>>>>> On 05/12/2010 11:23 AM, Jordan Zimmerman wrote:
>>>>>> Apologies...
>>>>>>
>>>>>> I thought I was running 3.3.0 server, but was running 3.2.2
>>>>>> server with 3.3.0 client. I upgraded the server and now all works
>>>>>> again. Sorry to trouble y'all.
>>>>>>
>>>>>> -Jordan
>>>>>>
>>>>>> On May 12, 2010, at 11:11 AM, Patrick Hunt wrote:
>>>>>>
>>>>>>> Hi Jordan, you've seen this once or frequently? (having the
>>>>>>> server + client logs will help alot)
>>>>>>>
>>>>>>> Patrick
>>>>>>>
>>>>>>> On 05/12/2010 11:08 AM, Jordan Zimmerman wrote:
>>>>>>>> Sure - if you think it's a bug.
>>>>>>>>
>>>>>>>> We were using Zookeeper without issue. I then refactored a
>>>>>>>> bunch of code and this new behavior started. I'm starting ZK
>>>>>>>> using "zkServer start" and haven't made any changes to the
>>>>>>>> code at all.
>>>>>>>>
>>>>>>>> I'll get the logs together and post a JIRA.
>>>>>>>>
>>>>>>>> -JZ
>>>>>>>>
>>>>>>>> On May 12, 2010, at 10:59 AM, Mahadev Konar wrote:
>>>>>>>>
>>>>>>>>> Hi Jordan, Can you create a jira for this? And attach all
>>>>>>>>> the server logs and client logs related to this timeline?
>>>>>>>>> How did you start up the servers? Is there some changes you
>>>>>>>>> might have made accidentatlly to the servers?
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Thanks mahadev
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On 5/12/10 10:49 AM, "Jordan
>>>>>>>>> Zimmerman"<jz...@proofpoint.com> wrote:
>>>>>>>>>
>>>>>>>>>> We've just started seeing an odd error and are having
>>>>>>>>>> trouble determining the cause. "Xid out of order. Got 8
>>>>>>>>>> expected 7" Any hints on what can cause this? Any ideas
>>>>>>>>>> on how to debug?
>>>>>>>>>>
>>>>>>>>>> We're using ZK 3.3.0. The error occurs in
>>>>>>>>>> ClientCnxn.java line 781
>>>>>>>>>>
>>>>>>>>>> -Jordan
>>
Re: Xid out of order. Got 8 expected 7
Posted by Patrick Hunt <ph...@apache.org>.
You're right. Ben, would you mind entering a JIRA?
Patrick
On 05/12/2010 11:41 AM, Benjamin Reed wrote:
> is this a bug? shouldn't we be returning an error.
>
> ben
>
> On 05/12/2010 11:34 AM, Patrick Hunt wrote:
>> I think that explains it then - the server is probably dropping the new
>> (3.3.0) "getChildren" message (xid 7) as it (3.2.2 server) doesn't know
>> about that message type. Then the server responds to the client for a
>> subsequent operation (xid 8), and at that point the client notices that
>> getChildren (xid 7) got lost.
>>
>> Patrick
>>
>> On 05/12/2010 11:30 AM, Jordan Zimmerman wrote:
>>> Oh, OK. When I get a moment I'll restart the 3.2.2 and post logs,
>>> etc.
>>>
>>> Yes, we're calling getChildren with the callback.
>>>
>>> -JZ
>>>
>>> On May 12, 2010, at 11:28 AM, Patrick Hunt wrote:
>>>
>>>> I'm still interested though... Are you using the new "getChildren"
>>>> api that was added to the client in 3.3.0? (it provides a Stat
>>>> object on return, the old getChildren did not). While we don't
>>>> officially support 3.3.0 client with 3.2.2 server (we do support
>>>> the other way around), there shouldn't be they type of problem with
>>>> this configuration as you describe. I'd still be interested for you
>>>> to create that jira.
>>>>
>>>> Regards,
>>>>
>>>> Patrick
>>>>
>>>> On 05/12/2010 11:23 AM, Jordan Zimmerman wrote:
>>>>> Apologies...
>>>>>
>>>>> I thought I was running 3.3.0 server, but was running 3.2.2
>>>>> server with 3.3.0 client. I upgraded the server and now all works
>>>>> again. Sorry to trouble y'all.
>>>>>
>>>>> -Jordan
>>>>>
>>>>> On May 12, 2010, at 11:11 AM, Patrick Hunt wrote:
>>>>>
>>>>>> Hi Jordan, you've seen this once or frequently? (having the
>>>>>> server + client logs will help alot)
>>>>>>
>>>>>> Patrick
>>>>>>
>>>>>> On 05/12/2010 11:08 AM, Jordan Zimmerman wrote:
>>>>>>> Sure - if you think it's a bug.
>>>>>>>
>>>>>>> We were using Zookeeper without issue. I then refactored a
>>>>>>> bunch of code and this new behavior started. I'm starting ZK
>>>>>>> using "zkServer start" and haven't made any changes to the
>>>>>>> code at all.
>>>>>>>
>>>>>>> I'll get the logs together and post a JIRA.
>>>>>>>
>>>>>>> -JZ
>>>>>>>
>>>>>>> On May 12, 2010, at 10:59 AM, Mahadev Konar wrote:
>>>>>>>
>>>>>>>> Hi Jordan, Can you create a jira for this? And attach all
>>>>>>>> the server logs and client logs related to this timeline?
>>>>>>>> How did you start up the servers? Is there some changes you
>>>>>>>> might have made accidentatlly to the servers?
>>>>>>>>
>>>>>>>>
>>>>>>>> Thanks mahadev
>>>>>>>>
>>>>>>>>
>>>>>>>> On 5/12/10 10:49 AM, "Jordan
>>>>>>>> Zimmerman"<jz...@proofpoint.com> wrote:
>>>>>>>>
>>>>>>>>> We've just started seeing an odd error and are having
>>>>>>>>> trouble determining the cause. "Xid out of order. Got 8
>>>>>>>>> expected 7" Any hints on what can cause this? Any ideas
>>>>>>>>> on how to debug?
>>>>>>>>>
>>>>>>>>> We're using ZK 3.3.0. The error occurs in
>>>>>>>>> ClientCnxn.java line 781
>>>>>>>>>
>>>>>>>>> -Jordan
>
Re: Xid out of order. Got 8 expected 7
Posted by Patrick Hunt <ph...@apache.org>.
I think Ben meant that the unknown operation itself (from server
perspective) should result in an error directly on both client and server.
Patrick
On 05/12/2010 11:45 AM, Jordan Zimmerman wrote:
> Technically, there is an error generated. IMO - a more descriptive error would be helpful.
>
> -JZ
>
> On May 12, 2010, at 11:41 AM, Benjamin Reed wrote:
>
>> is this a bug? shouldn't we be returning an error.
>>
>> ben
>>
>> On 05/12/2010 11:34 AM, Patrick Hunt wrote:
>>> I think that explains it then - the server is probably dropping the new
>>> (3.3.0) "getChildren" message (xid 7) as it (3.2.2 server) doesn't know
>>> about that message type. Then the server responds to the client for a
>>> subsequent operation (xid 8), and at that point the client notices that
>>> getChildren (xid 7) got lost.
>>>
>>> Patrick
>>>
>>> On 05/12/2010 11:30 AM, Jordan Zimmerman wrote:
>>>
>>>> Oh, OK. When I get a moment I'll restart the 3.2.2 and post logs,
>>>> etc.
>>>>
>>>> Yes, we're calling getChildren with the callback.
>>>>
>>>> -JZ
>>>>
>>>> On May 12, 2010, at 11:28 AM, Patrick Hunt wrote:
>>>>
>>>>
>>>>> I'm still interested though... Are you using the new "getChildren"
>>>>> api that was added to the client in 3.3.0? (it provides a Stat
>>>>> object on return, the old getChildren did not). While we don't
>>>>> officially support 3.3.0 client with 3.2.2 server (we do support
>>>>> the other way around), there shouldn't be they type of problem with
>>>>> this configuration as you describe. I'd still be interested for you
>>>>> to create that jira.
>>>>>
>>>>> Regards,
>>>>>
>>>>> Patrick
>>>>>
>>>>> On 05/12/2010 11:23 AM, Jordan Zimmerman wrote:
>>>>>
>>>>>> Apologies...
>>>>>>
>>>>>> I thought I was running 3.3.0 server, but was running 3.2.2
>>>>>> server with 3.3.0 client. I upgraded the server and now all works
>>>>>> again. Sorry to trouble y'all.
>>>>>>
>>>>>> -Jordan
>>>>>>
>>>>>> On May 12, 2010, at 11:11 AM, Patrick Hunt wrote:
>>>>>>
>>>>>>
>>>>>>> Hi Jordan, you've seen this once or frequently? (having the
>>>>>>> server + client logs will help alot)
>>>>>>>
>>>>>>> Patrick
>>>>>>>
>>>>>>> On 05/12/2010 11:08 AM, Jordan Zimmerman wrote:
>>>>>>>
>>>>>>>> Sure - if you think it's a bug.
>>>>>>>>
>>>>>>>> We were using Zookeeper without issue. I then refactored a
>>>>>>>> bunch of code and this new behavior started. I'm starting ZK
>>>>>>>> using "zkServer start" and haven't made any changes to the
>>>>>>>> code at all.
>>>>>>>>
>>>>>>>> I'll get the logs together and post a JIRA.
>>>>>>>>
>>>>>>>> -JZ
>>>>>>>>
>>>>>>>> On May 12, 2010, at 10:59 AM, Mahadev Konar wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>> Hi Jordan, Can you create a jira for this? And attach all
>>>>>>>>> the server logs and client logs related to this timeline?
>>>>>>>>> How did you start up the servers? Is there some changes you
>>>>>>>>> might have made accidentatlly to the servers?
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Thanks mahadev
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On 5/12/10 10:49 AM, "Jordan
>>>>>>>>> Zimmerman"<jz...@proofpoint.com> wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>> We've just started seeing an odd error and are having
>>>>>>>>>> trouble determining the cause. "Xid out of order. Got 8
>>>>>>>>>> expected 7" Any hints on what can cause this? Any ideas
>>>>>>>>>> on how to debug?
>>>>>>>>>>
>>>>>>>>>> We're using ZK 3.3.0. The error occurs in
>>>>>>>>>> ClientCnxn.java line 781
>>>>>>>>>>
>>>>>>>>>> -Jordan
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>
>>>>
>>
>
Re: Xid out of order. Got 8 expected 7
Posted by Jordan Zimmerman <jz...@proofpoint.com>.
Technically, there is an error generated. IMO - a more descriptive error would be helpful.
-JZ
On May 12, 2010, at 11:41 AM, Benjamin Reed wrote:
> is this a bug? shouldn't we be returning an error.
>
> ben
>
> On 05/12/2010 11:34 AM, Patrick Hunt wrote:
>> I think that explains it then - the server is probably dropping the new
>> (3.3.0) "getChildren" message (xid 7) as it (3.2.2 server) doesn't know
>> about that message type. Then the server responds to the client for a
>> subsequent operation (xid 8), and at that point the client notices that
>> getChildren (xid 7) got lost.
>>
>> Patrick
>>
>> On 05/12/2010 11:30 AM, Jordan Zimmerman wrote:
>>
>>> Oh, OK. When I get a moment I'll restart the 3.2.2 and post logs,
>>> etc.
>>>
>>> Yes, we're calling getChildren with the callback.
>>>
>>> -JZ
>>>
>>> On May 12, 2010, at 11:28 AM, Patrick Hunt wrote:
>>>
>>>
>>>> I'm still interested though... Are you using the new "getChildren"
>>>> api that was added to the client in 3.3.0? (it provides a Stat
>>>> object on return, the old getChildren did not). While we don't
>>>> officially support 3.3.0 client with 3.2.2 server (we do support
>>>> the other way around), there shouldn't be they type of problem with
>>>> this configuration as you describe. I'd still be interested for you
>>>> to create that jira.
>>>>
>>>> Regards,
>>>>
>>>> Patrick
>>>>
>>>> On 05/12/2010 11:23 AM, Jordan Zimmerman wrote:
>>>>
>>>>> Apologies...
>>>>>
>>>>> I thought I was running 3.3.0 server, but was running 3.2.2
>>>>> server with 3.3.0 client. I upgraded the server and now all works
>>>>> again. Sorry to trouble y'all.
>>>>>
>>>>> -Jordan
>>>>>
>>>>> On May 12, 2010, at 11:11 AM, Patrick Hunt wrote:
>>>>>
>>>>>
>>>>>> Hi Jordan, you've seen this once or frequently? (having the
>>>>>> server + client logs will help alot)
>>>>>>
>>>>>> Patrick
>>>>>>
>>>>>> On 05/12/2010 11:08 AM, Jordan Zimmerman wrote:
>>>>>>
>>>>>>> Sure - if you think it's a bug.
>>>>>>>
>>>>>>> We were using Zookeeper without issue. I then refactored a
>>>>>>> bunch of code and this new behavior started. I'm starting ZK
>>>>>>> using "zkServer start" and haven't made any changes to the
>>>>>>> code at all.
>>>>>>>
>>>>>>> I'll get the logs together and post a JIRA.
>>>>>>>
>>>>>>> -JZ
>>>>>>>
>>>>>>> On May 12, 2010, at 10:59 AM, Mahadev Konar wrote:
>>>>>>>
>>>>>>>
>>>>>>>> Hi Jordan, Can you create a jira for this? And attach all
>>>>>>>> the server logs and client logs related to this timeline?
>>>>>>>> How did you start up the servers? Is there some changes you
>>>>>>>> might have made accidentatlly to the servers?
>>>>>>>>
>>>>>>>>
>>>>>>>> Thanks mahadev
>>>>>>>>
>>>>>>>>
>>>>>>>> On 5/12/10 10:49 AM, "Jordan
>>>>>>>> Zimmerman"<jz...@proofpoint.com> wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>> We've just started seeing an odd error and are having
>>>>>>>>> trouble determining the cause. "Xid out of order. Got 8
>>>>>>>>> expected 7" Any hints on what can cause this? Any ideas
>>>>>>>>> on how to debug?
>>>>>>>>>
>>>>>>>>> We're using ZK 3.3.0. The error occurs in
>>>>>>>>> ClientCnxn.java line 781
>>>>>>>>>
>>>>>>>>> -Jordan
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>
>>>
>
Re: Xid out of order. Got 8 expected 7
Posted by Benjamin Reed <br...@yahoo-inc.com>.
is this a bug? shouldn't we be returning an error.
ben
On 05/12/2010 11:34 AM, Patrick Hunt wrote:
> I think that explains it then - the server is probably dropping the new
> (3.3.0) "getChildren" message (xid 7) as it (3.2.2 server) doesn't know
> about that message type. Then the server responds to the client for a
> subsequent operation (xid 8), and at that point the client notices that
> getChildren (xid 7) got lost.
>
> Patrick
>
> On 05/12/2010 11:30 AM, Jordan Zimmerman wrote:
>
>> Oh, OK. When I get a moment I'll restart the 3.2.2 and post logs,
>> etc.
>>
>> Yes, we're calling getChildren with the callback.
>>
>> -JZ
>>
>> On May 12, 2010, at 11:28 AM, Patrick Hunt wrote:
>>
>>
>>> I'm still interested though... Are you using the new "getChildren"
>>> api that was added to the client in 3.3.0? (it provides a Stat
>>> object on return, the old getChildren did not). While we don't
>>> officially support 3.3.0 client with 3.2.2 server (we do support
>>> the other way around), there shouldn't be they type of problem with
>>> this configuration as you describe. I'd still be interested for you
>>> to create that jira.
>>>
>>> Regards,
>>>
>>> Patrick
>>>
>>> On 05/12/2010 11:23 AM, Jordan Zimmerman wrote:
>>>
>>>> Apologies...
>>>>
>>>> I thought I was running 3.3.0 server, but was running 3.2.2
>>>> server with 3.3.0 client. I upgraded the server and now all works
>>>> again. Sorry to trouble y'all.
>>>>
>>>> -Jordan
>>>>
>>>> On May 12, 2010, at 11:11 AM, Patrick Hunt wrote:
>>>>
>>>>
>>>>> Hi Jordan, you've seen this once or frequently? (having the
>>>>> server + client logs will help alot)
>>>>>
>>>>> Patrick
>>>>>
>>>>> On 05/12/2010 11:08 AM, Jordan Zimmerman wrote:
>>>>>
>>>>>> Sure - if you think it's a bug.
>>>>>>
>>>>>> We were using Zookeeper without issue. I then refactored a
>>>>>> bunch of code and this new behavior started. I'm starting ZK
>>>>>> using "zkServer start" and haven't made any changes to the
>>>>>> code at all.
>>>>>>
>>>>>> I'll get the logs together and post a JIRA.
>>>>>>
>>>>>> -JZ
>>>>>>
>>>>>> On May 12, 2010, at 10:59 AM, Mahadev Konar wrote:
>>>>>>
>>>>>>
>>>>>>> Hi Jordan, Can you create a jira for this? And attach all
>>>>>>> the server logs and client logs related to this timeline?
>>>>>>> How did you start up the servers? Is there some changes you
>>>>>>> might have made accidentatlly to the servers?
>>>>>>>
>>>>>>>
>>>>>>> Thanks mahadev
>>>>>>>
>>>>>>>
>>>>>>> On 5/12/10 10:49 AM, "Jordan
>>>>>>> Zimmerman"<jz...@proofpoint.com> wrote:
>>>>>>>
>>>>>>>
>>>>>>>> We've just started seeing an odd error and are having
>>>>>>>> trouble determining the cause. "Xid out of order. Got 8
>>>>>>>> expected 7" Any hints on what can cause this? Any ideas
>>>>>>>> on how to debug?
>>>>>>>>
>>>>>>>> We're using ZK 3.3.0. The error occurs in
>>>>>>>> ClientCnxn.java line 781
>>>>>>>>
>>>>>>>> -Jordan
>>>>>>>>
>>>>>>>
>>>>>>
>>>>
>>
Re: Xid out of order. Got 8 expected 7
Posted by Patrick Hunt <ph...@apache.org>.
I think that explains it then - the server is probably dropping the new
(3.3.0) "getChildren" message (xid 7) as it (3.2.2 server) doesn't know
about that message type. Then the server responds to the client for a
subsequent operation (xid 8), and at that point the client notices that
getChildren (xid 7) got lost.
Patrick
On 05/12/2010 11:30 AM, Jordan Zimmerman wrote:
> Oh, OK. When I get a moment I'll restart the 3.2.2 and post logs,
> etc.
>
> Yes, we're calling getChildren with the callback.
>
> -JZ
>
> On May 12, 2010, at 11:28 AM, Patrick Hunt wrote:
>
>> I'm still interested though... Are you using the new "getChildren"
>> api that was added to the client in 3.3.0? (it provides a Stat
>> object on return, the old getChildren did not). While we don't
>> officially support 3.3.0 client with 3.2.2 server (we do support
>> the other way around), there shouldn't be they type of problem with
>> this configuration as you describe. I'd still be interested for you
>> to create that jira.
>>
>> Regards,
>>
>> Patrick
>>
>> On 05/12/2010 11:23 AM, Jordan Zimmerman wrote:
>>> Apologies...
>>>
>>> I thought I was running 3.3.0 server, but was running 3.2.2
>>> server with 3.3.0 client. I upgraded the server and now all works
>>> again. Sorry to trouble y'all.
>>>
>>> -Jordan
>>>
>>> On May 12, 2010, at 11:11 AM, Patrick Hunt wrote:
>>>
>>>> Hi Jordan, you've seen this once or frequently? (having the
>>>> server + client logs will help alot)
>>>>
>>>> Patrick
>>>>
>>>> On 05/12/2010 11:08 AM, Jordan Zimmerman wrote:
>>>>> Sure - if you think it's a bug.
>>>>>
>>>>> We were using Zookeeper without issue. I then refactored a
>>>>> bunch of code and this new behavior started. I'm starting ZK
>>>>> using "zkServer start" and haven't made any changes to the
>>>>> code at all.
>>>>>
>>>>> I'll get the logs together and post a JIRA.
>>>>>
>>>>> -JZ
>>>>>
>>>>> On May 12, 2010, at 10:59 AM, Mahadev Konar wrote:
>>>>>
>>>>>> Hi Jordan, Can you create a jira for this? And attach all
>>>>>> the server logs and client logs related to this timeline?
>>>>>> How did you start up the servers? Is there some changes you
>>>>>> might have made accidentatlly to the servers?
>>>>>>
>>>>>>
>>>>>> Thanks mahadev
>>>>>>
>>>>>>
>>>>>> On 5/12/10 10:49 AM, "Jordan
>>>>>> Zimmerman"<jz...@proofpoint.com> wrote:
>>>>>>
>>>>>>> We've just started seeing an odd error and are having
>>>>>>> trouble determining the cause. "Xid out of order. Got 8
>>>>>>> expected 7" Any hints on what can cause this? Any ideas
>>>>>>> on how to debug?
>>>>>>>
>>>>>>> We're using ZK 3.3.0. The error occurs in
>>>>>>> ClientCnxn.java line 781
>>>>>>>
>>>>>>> -Jordan
>>>>>>
>>>>>
>>>
>
Re: Xid out of order. Got 8 expected 7
Posted by Patrick Hunt <ph...@apache.org>.
I'm still interested though... Are you using the new "getChildren" api
that was added to the client in 3.3.0? (it provides a Stat object on
return, the old getChildren did not). While we don't officially support
3.3.0 client with 3.2.2 server (we do support the other way around),
there shouldn't be they type of problem with this configuration as you
describe. I'd still be interested for you to create that jira.
Regards,
Patrick
On 05/12/2010 11:23 AM, Jordan Zimmerman wrote:
> Apologies...
>
> I thought I was running 3.3.0 server, but was running 3.2.2 server
> with 3.3.0 client. I upgraded the server and now all works again.
> Sorry to trouble y'all.
>
> -Jordan
>
> On May 12, 2010, at 11:11 AM, Patrick Hunt wrote:
>
>> Hi Jordan, you've seen this once or frequently? (having the server
>> + client logs will help alot)
>>
>> Patrick
>>
>> On 05/12/2010 11:08 AM, Jordan Zimmerman wrote:
>>> Sure - if you think it's a bug.
>>>
>>> We were using Zookeeper without issue. I then refactored a bunch
>>> of code and this new behavior started. I'm starting ZK using
>>> "zkServer start" and haven't made any changes to the code at
>>> all.
>>>
>>> I'll get the logs together and post a JIRA.
>>>
>>> -JZ
>>>
>>> On May 12, 2010, at 10:59 AM, Mahadev Konar wrote:
>>>
>>>> Hi Jordan, Can you create a jira for this? And attach all the
>>>> server logs and client logs related to this timeline? How did
>>>> you start up the servers? Is there some changes you might have
>>>> made accidentatlly to the servers?
>>>>
>>>>
>>>> Thanks mahadev
>>>>
>>>>
>>>> On 5/12/10 10:49 AM, "Jordan
>>>> Zimmerman"<jz...@proofpoint.com> wrote:
>>>>
>>>>> We've just started seeing an odd error and are having
>>>>> trouble determining the cause. "Xid out of order. Got 8
>>>>> expected 7" Any hints on what can cause this? Any ideas on
>>>>> how to debug?
>>>>>
>>>>> We're using ZK 3.3.0. The error occurs in ClientCnxn.java
>>>>> line 781
>>>>>
>>>>> -Jordan
>>>>
>>>
>
Re: Xid out of order. Got 8 expected 7
Posted by Jordan Zimmerman <jz...@proofpoint.com>.
Apologies...
I thought I was running 3.3.0 server, but was running 3.2.2 server with 3.3.0 client. I upgraded the server and now all works again. Sorry to trouble y'all.
-Jordan
On May 12, 2010, at 11:11 AM, Patrick Hunt wrote:
> Hi Jordan, you've seen this once or frequently? (having the server + client logs will help alot)
>
> Patrick
>
> On 05/12/2010 11:08 AM, Jordan Zimmerman wrote:
>> Sure - if you think it's a bug.
>>
>> We were using Zookeeper without issue. I then refactored a bunch of
>> code and this new behavior started. I'm starting ZK using "zkServer
>> start" and haven't made any changes to the code at all.
>>
>> I'll get the logs together and post a JIRA.
>>
>> -JZ
>>
>> On May 12, 2010, at 10:59 AM, Mahadev Konar wrote:
>>
>>> Hi Jordan, Can you create a jira for this? And attach all the
>>> server logs and client logs related to this timeline? How did you
>>> start up the servers? Is there some changes you might have made
>>> accidentatlly to the servers?
>>>
>>>
>>> Thanks mahadev
>>>
>>>
>>> On 5/12/10 10:49 AM, "Jordan Zimmerman"<jz...@proofpoint.com>
>>> wrote:
>>>
>>>> We've just started seeing an odd error and are having trouble
>>>> determining the cause. "Xid out of order. Got 8 expected 7" Any
>>>> hints on what can cause this? Any ideas on how to debug?
>>>>
>>>> We're using ZK 3.3.0. The error occurs in ClientCnxn.java line
>>>> 781
>>>>
>>>> -Jordan
>>>
>>