How many outstanding requests do you have at a time, Qian? Only one? If so, you should instead have multiple outstanding. That is, you don't wait for the callback to issue a new request.-FlavioOn Mar 9, 2011, at 3:44 AM, Qian Ye wrote:Hi Flavio, asynchronous calls doesn't perform better, here is so
Java Barrier Documentation example has a race condition issue
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Key: ZOOKEEPER-1011
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1011
Project: ZooKeeper
Issue Type: Bug
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https://issues.apache.org/jira/browse/ZOOKEEPER-1011?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Semih Salihoglu updated ZOOKEEPER-1011:
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Description:
There is a race condition in the Barrier example of the java doc:
h
Hi Flavio and Qian, I did some tests in my environment, too. And it seems it
is not as good as it supposed to be. I used async interface(zoo_aget), send
about 1 requests to3 servers at the same time. But it turn out to be on
the same level with Qian's test. Is there anything I should pay atten
Hi Flavio, when I use asynchronous calls, i won't wait for the callback to
issue a new request. Could you tell me the test method you used in your
test. What is the CPU utilization rate when the perforance reach the
maximum?
On Wed, Mar 9, 2011 at 5:28 PM, Flavio Junqueira wrote:
> How many outs
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Mahadev konar reassigned ZOOKEEPER-1011:
Assignee: Semih Salihoglu
> Java Barrier Documentation example has a race condi
are you using 1 gbs ethernet or 100 mbs? those numbers seem to correspond to
100 mbs. you may want to do a simple bandwidth test just to make sure.
how long are you running the test for?
also, you might check that the clients are being spread around the zk
servers. using the 4 letter works or phu
To that end, is the client wire protocol documented anywhere? I would
be interested in some native-language client development.
Mahadev Konar wrote:
> Not that I know of :). There is the usual python using c (zkpython in
> contrib) but I am not ware of anything other than that.
>
> thanks
> mah
all of the packets are in zookeeper.jute, which is use to generate the
serialization classes for C and java. unfortunately the modified
version of jute that we are using only generates C and java code. it
is one of the reasons we were looking at moving to avro. we do need to
document what is used w
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https://issues.apache.org/jira/browse/ZOOKEEPER-837?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Koch updated ZOOKEEPER-837:
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Attachment: ZOOKEEPER-837.patch
Hi Mahadev,
the inconsistent synchronization has been that
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Hadoop QA commented on ZOOKEEPER-837:
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-1 overall. Here are the results of testing
Hi Flavio,
Since long I have been wanting to contribute to ZooKeeper. Looking at the
this ticket, I am willing to start with it if given opportunity.
Could you please help me with it on how to go about this feature? (Is
someone else doing it?) What is process of contributing to ZooKeeper? How t
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trunk/src/java/main/org/apache/zookeeper/common/fd/InterArrivalSampling
thanks for reply. I use scp to check my ethernet again, the transmission
rate is about 60MB/s. I send about 10 requests in each process(60
processes in 2 clients), and it costs about 550 seconds to finish all the
requests. And I am sure that all the processes had been spread around all
the serv
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https://issues.apache.org/jira/browse/ZOOKEEPER-107?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexander Shraer updated ZOOKEEPER-107:
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http://wiki.apache.org/hadoop/ZooKeeper/ClusterMembership
> Allow dynamic changes to
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Alexander Shraer commented on ZOOKEEPER-107:
I've added a proposed algorith
Hi,
I'm working on adding support for dynamic membership changes in Zookeeper
clusters (ZOOKEEPER-107). I've added a proposed algorithm and some discussion
here:
https://cwiki.apache.org/confluence/display/ZOOKEEPER/ClusterMembership
Any comments and suggestions are very welcome.
Best
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