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Posted to user@zookeeper.apache.org by Matt Wise <ma...@nextdoor.com> on 2012/12/09 20:58:18 UTC

Kazoo 0.8: Queue Timeout warnings

Using Kazoo 0.8 and ZooKeeper 3.4.5 I am seeing these warning messages when I have DEBUG logging turned on. Are they normal?

> zk_watcher[kazoo.protocol.connection-140107313350400-reader: (DEBUG) Received PING
> zk_watcher[kazoo.protocol.connection-140107323893504-_send_request: (DEBUG) Queue timeout.  Sending PING
> zk_watcher[kazoo.protocol.connection-140107313350400-reader: (DEBUG) Received PING
> zk_watcher[kazoo.protocol.connection-140107323893504-_send_request: (DEBUG) Queue timeout.  Sending PING
> zk_watcher[kazoo.protocol.connection-140107313350400-reader: (DEBUG) Received PING


--Matt

Re: Kazoo 0.8: Queue Timeout warnings

Posted by Matt Wise <ma...@nextdoor.com>.
Thanks, it does!

Now, I just need to solve the other issue (the 'state listener' thread I started). :)

--Matt

On Dec 9, 2012, at 5:47 PM, Alan Cabrera <li...@toolazydogs.com> wrote:

> Well, it is a ping, and the pings are sent out when the queue has been empty for a long time.
> 
> You will note that these are not warning messages but simple debug messages.  HTH.
> 
> 
> Regards,
> Alan
> 
> On Dec 9, 2012, at 5:30 PM, Matt Wise wrote:
> 
>> Interesting ... its too bad the wording is unclear. At least its nothing though, thanks!
>> 
>> --Matt
>> 
>> On Dec 9, 2012, at 4:18 PM, Alan Cabrera <li...@toolazydogs.com> wrote:
>> 
>>> 
>>> On Dec 9, 2012, at 11:58 AM, Matt Wise wrote:
>>> 
>>>> Using Kazoo 0.8 and ZooKeeper 3.4.5 I am seeing these warning messages when I have DEBUG logging turned on. Are they normal?
>>>> 
>>>>> zk_watcher[kazoo.protocol.connection-140107313350400-reader: (DEBUG) Received PING
>>>>> zk_watcher[kazoo.protocol.connection-140107323893504-_send_request: (DEBUG) Queue timeout.  Sending PING
>>>>> zk_watcher[kazoo.protocol.connection-140107313350400-reader: (DEBUG) Received PING
>>>>> zk_watcher[kazoo.protocol.connection-140107323893504-_send_request: (DEBUG) Queue timeout.  Sending PING
>>>>> zk_watcher[kazoo.protocol.connection-140107313350400-reader: (DEBUG) Received PING
>>> 
>>> 
>>> These are quite normal.  If your client is not sending any commands to the Zookeeper cluster the Kazoo client needs to send pings to the cluster so that the cluster knows that your client is still around.
>>> 
>>> 
>>> Regards,
>>> Alan
>>> 
>> 
>

Re: Kazoo 0.8: Queue Timeout warnings

Posted by Alan Cabrera <li...@toolazydogs.com>.
Well, it is a ping, and the pings are sent out when the queue has been empty for a long time.

You will note that these are not warning messages but simple debug messages.  HTH.


Regards,
Alan

On Dec 9, 2012, at 5:30 PM, Matt Wise wrote:

> Interesting ... its too bad the wording is unclear. At least its nothing though, thanks!
> 
> --Matt
> 
> On Dec 9, 2012, at 4:18 PM, Alan Cabrera <li...@toolazydogs.com> wrote:
> 
>> 
>> On Dec 9, 2012, at 11:58 AM, Matt Wise wrote:
>> 
>>> Using Kazoo 0.8 and ZooKeeper 3.4.5 I am seeing these warning messages when I have DEBUG logging turned on. Are they normal?
>>> 
>>>> zk_watcher[kazoo.protocol.connection-140107313350400-reader: (DEBUG) Received PING
>>>> zk_watcher[kazoo.protocol.connection-140107323893504-_send_request: (DEBUG) Queue timeout.  Sending PING
>>>> zk_watcher[kazoo.protocol.connection-140107313350400-reader: (DEBUG) Received PING
>>>> zk_watcher[kazoo.protocol.connection-140107323893504-_send_request: (DEBUG) Queue timeout.  Sending PING
>>>> zk_watcher[kazoo.protocol.connection-140107313350400-reader: (DEBUG) Received PING
>> 
>> 
>> These are quite normal.  If your client is not sending any commands to the Zookeeper cluster the Kazoo client needs to send pings to the cluster so that the cluster knows that your client is still around.
>> 
>> 
>> Regards,
>> Alan
>> 
>

Re: Kazoo 0.8: Queue Timeout warnings

Posted by Matt Wise <ma...@nextdoor.com>.
Interesting ... its too bad the wording is unclear. At least its nothing though, thanks!

--Matt

On Dec 9, 2012, at 4:18 PM, Alan Cabrera <li...@toolazydogs.com> wrote:

> 
> On Dec 9, 2012, at 11:58 AM, Matt Wise wrote:
> 
>> Using Kazoo 0.8 and ZooKeeper 3.4.5 I am seeing these warning messages when I have DEBUG logging turned on. Are they normal?
>> 
>>> zk_watcher[kazoo.protocol.connection-140107313350400-reader: (DEBUG) Received PING
>>> zk_watcher[kazoo.protocol.connection-140107323893504-_send_request: (DEBUG) Queue timeout.  Sending PING
>>> zk_watcher[kazoo.protocol.connection-140107313350400-reader: (DEBUG) Received PING
>>> zk_watcher[kazoo.protocol.connection-140107323893504-_send_request: (DEBUG) Queue timeout.  Sending PING
>>> zk_watcher[kazoo.protocol.connection-140107313350400-reader: (DEBUG) Received PING
> 
> 
> These are quite normal.  If your client is not sending any commands to the Zookeeper cluster the Kazoo client needs to send pings to the cluster so that the cluster knows that your client is still around.
> 
> 
> Regards,
> Alan
>

Re: Kazoo 0.8: Queue Timeout warnings

Posted by Alan Cabrera <li...@toolazydogs.com>.
On Dec 9, 2012, at 11:58 AM, Matt Wise wrote:

> Using Kazoo 0.8 and ZooKeeper 3.4.5 I am seeing these warning messages when I have DEBUG logging turned on. Are they normal?
> 
>> zk_watcher[kazoo.protocol.connection-140107313350400-reader: (DEBUG) Received PING
>> zk_watcher[kazoo.protocol.connection-140107323893504-_send_request: (DEBUG) Queue timeout.  Sending PING
>> zk_watcher[kazoo.protocol.connection-140107313350400-reader: (DEBUG) Received PING
>> zk_watcher[kazoo.protocol.connection-140107323893504-_send_request: (DEBUG) Queue timeout.  Sending PING
>> zk_watcher[kazoo.protocol.connection-140107313350400-reader: (DEBUG) Received PING


These are quite normal.  If your client is not sending any commands to the Zookeeper cluster the Kazoo client needs to send pings to the cluster so that the cluster knows that your client is still around.


Regards,
Alan