Re: Zab Failure scenario

A reconfiguration is treated similarly to other proposals for recovery purposes (of course commit is different in that it changes the configuration). You can see the paper for details on how recovery works in principle, and

Re: [ANNOUNCE] New committer: Chris Nauroth

Welcome Chris, thanks for all your great work and congrats! -Rakesh On Mon, Sep 28, 2015 at 8:11 PM, Flavio Junqueira wrote: > The Apache ZooKeeper PMC is pleased to announce that Chris Nauroth has > accepted to become a committer. Chris has been a great contributor and very >

Re: [ANNOUNCE] New committer: Chris Nauroth

Congratulations, Chris!!! Best, Edward Em 28/09/2015 14:12, "Alexander Shraer" escreveu: > Congrats Chris, and welcome! > > On Mon, Sep 28, 2015 at 9:52 AM, Rakesh Radhakrishnan < > rakeshr.apa...@gmail.com> wrote: > > > Welcome Chris, thanks for all your great work and

Re: 3-server Zab cluster

Committing locally when sending an ACK at a server would lead to loss of consistency - it is possible that this is the only server that acks, e.g., this server is temporarily disconnected from the leader, the leader gets re-elected and the operation is truncated from logs at other servers. Its ok

Re: [ANNOUNCE] New committer: Chris Nauroth

Congrats Chris, and welcome! On Mon, Sep 28, 2015 at 9:52 AM, Rakesh Radhakrishnan < rakeshr.apa...@gmail.com> wrote: > Welcome Chris, thanks for all your great work and congrats! > > -Rakesh > > On Mon, Sep 28, 2015 at 8:11 PM, Flavio Junqueira wrote: > > > The Apache

RE: Zab Failure scenario

Yes, I am thinking of mixing an in-flight reconfiguration request with the crashing servers example that you gave Not about how proposals, acks, commits (i.e.: ZAB proper) work. Thank you -Original Message- From: Raúl Gutiérrez Segalés [mailto:r...@itevenworks.net] Sent: Monday,

Re: [ANNOUNCE] New committer: Chris Nauroth

Congratulations Chris Nauroth! Well deserved Best Regards Mohammad Arshad On Tue, Sep 29, 2015 at 12:56 AM, Edward Ribeiro wrote: > Congratulations, Chris!!! > > Best, > Edward > Em 28/09/2015 14:12, "Alexander Shraer" escreveu: > > >

RE: zk will not cluster

Is there a firewall between those two networks (104.236 and 192.241)? -Original Message- From: David Montgomery [mailto:davidmontgom...@gmail.com] Sent: 28 September 2015 15:21 To: user@zookeeper.apache.org Subject: zk will not cluster Hi, I cant cluster three nodes. They all are

zk will not cluster

Hi, I cant cluster three nodes. They all are standalone. Here is the zoo.cgf for each the myid for each is 1,2,3 myid is located in /var/lib/zookeeper/myid tickTime=3000 initLimit=10 syncLimit=5 dataDir=/var/lib/zookeeper clientPort=2181 server.1=104.236.xxx:2888:3888

Re: Can not setAcl a znode

Thanks to Raúl Gutiérrez Segalés , it really works. By the way, do you know how to solve this ZooKeeper-and-Kerberos-related problem ? Thanks very much.

Re: zk will not cluster

No all have full access using ufw. Thanks On Mon, Sep 28, 2015 at 10:23 PM, William Hargrove wrote: > Is there a firewall between those two networks (104.236 and 192.241)? > > -Original Message- > From: David Montgomery [mailto:davidmontgom...@gmail.com] >

[ANNOUNCE] New committer: Chris Nauroth

The Apache ZooKeeper PMC is pleased to announce that Chris Nauroth has accepted to become a committer. Chris has been a great contributor and very active in the community. Congrats, Chris! -Flavio

3-server Zab cluster

In Zab, assume we have a cluster consists of 3-servers. To deliver a write request, it must run 3 communication steps proposal, acknowledgement and commit. As Zab uses reliable FIFO, it is possible to remove commit round. As soon as a follower receives a proposal, it logs, sends an ACK and

RE: 3-server Zab cluster

Thank you Alex for replaying. When you said " the leader gets re-elected and the operation is truncated from logs at other servers". I though the new leader will sync the its logs with other followers (synchronization phase), resulting in the operation will commit by new quorum. Let me make

Re: 3-server Zab cluster

I'm not 100% sure whether operations that were pending on the leader are sent out during sync when this leader looses quorum and re-elected. If so, then maybe you're right. But in any case, this would not work for 5 or more servers... On Mon, Sep 28, 2015 at 3:51 PM, Ibrahim El-sanosi (PGR) <

Re: zk will not cluster

server.1=104.236.xxx:2888:3888 server.2=104.236.xxx:2888:3888 server.3=192.241.xxx:2888:3888 is this the same zoo.cfg on all machine? double check On Mon, Sep 28, 2015 at 10:39 AM, David Montgomery < davidmontgom...@gmail.com> wrote: > No all have full access using ufw. > > Thanks > > On