Re: [VOTE] Apache ZooKeeper release 3.4.11 candidate 1

Hi Pat, I've done verification with JDK 1.7.0_141 on my mac desktop: - signatures verified. - started a few different cluster sizes(1,3,5). - ran command line zk client - create, delete, get data, set data znode. - ran few 4lw commands. - ran unit test, looks good. Not sure if it's a problem, bu

Re: [VOTE] Apache ZooKeeper release 3.4.11 candidate 1

Sent too early. - also verified JMX beans On Fri, Nov 3, 2017 at 5:50 PM, Andor Molnar wrote: > Hi Pat, > > I've done verification with JDK 1.7.0_141 on my mac desktop: > > - signatures verified. > - started a few different cluster sizes(1,3,5). > - ran command line

Re: how zookeeper promise FIFO client order

he > > section "Order in the Presence of Connection Loss" in the "ZooKeeper: > > Distributed Process Coordination" book for the best answer to this > > question. > > > > Thanks, > > Abe > > > > On Mon, Nov 13, 2017, at 06:17, Andor Mol

Apache build failing with test-core-cppunit

Hi, Zookeeper build has been failing for a while with some weird error in test-core-cppunit task. In most cases the error is the following: ... [exec] Zookeeper_simpleSystem::testGetChildren2 : elapsed 1052 : OK [exec] Zookeeper_simpleSystem::testLastZxid : elapsed 4520 : OK [exec]

Re: Apache build failing with test-core-cppunit

Looks like only https://builds.apache.org/job/ZooKeeper-trunk is affected. On Tue, Nov 21, 2017 at 3:22 PM, Andor Molnar wrote: > Hi, > > Zookeeper build has been failing for a while with some weird error in > test-core-cppunit task. In most cases the error is t

Re: Apache build failing with test-core-cppunit

myid': Permission denied > > check whether it's happening on just one host (jenkins). > > Patrick > > On Tue, Nov 21, 2017 at 6:25 AM, Andor Molnar wrote: > > > Looks like only https://builds.apache.org/job/ZooKeeper-trunk is > affected. > > > > >

Re: Apache build failing with test-core-cppunit

>> > Notice that it's not jenkins. > >> > > >> > > >> > Can you (Abe?) submit a jira/patch (ASAP as it's breaking the build) > >> > to create a new directory in /tmp and then host all the tmp files > >> > t

Squash/fixup commits

Hi, @afine raised this on my latest PR: "going forward it would be great if you didn't squash your commits when updating your pr in response to comments (I'm guilty of doing this too), i think the pr merge script handles that plus it is more difficult to see exactly what you changed in response to

Re: Proposal for reworked ZK web site generation: CMS -> jekyll

Although I'm not a committer I really appreciate this work. Andor On Fri, Dec 1, 2017 at 1:51 AM, Michael Han wrote: > +1, the new publish process sounds much better. Thanks Pat. > > On Thu, Nov 30, 2017 at 5:00 AM, Camille Fournier > wrote: > > > +1 good idea to get this modernized thanks pa

Re: Multiple watches in queue

Hi Prasanna, I replied on the SO thread. Regards, Andor On Fri, Dec 22, 2017 at 5:09 AM, Prasanna koirala wrote: > Here is my problem > https://stackoverflow.com/questions/47924402/is-there-a- > way-to-add-watcher-queue-in-zookeeper > > Is there any solution to it ?? Any kind of research or w

Bug in Zookeeper 3.4.11 release

Hi all, Looks like we've a pretty serious bug in 3.4.11: https://issues.apache.org/jira/browse/ZOOKEEPER-2960 In a nutshell: ZK uses dataDir and dataLogDir parameters in the wrong order, meaning it tries to access logs in the snapshot folder and vica versa. Not sure what's the process in such ca

Re: Bug in Zookeeper 3.4.11 release

ure if snapshots/logs are where they shouldn't be. That way > we > > prevent people that are running 3.4.11 from experiencing data loss. > > > > Abe > > > > On Wed, Jan 3, 2018, at 03:07, Andor Molnar wrote: > > > Hi all, > > > > > >

Re: Bug in Zookeeper 3.4.11 release

e a jira to add this check? I'd like to resolve this and the > crc issue and push out a 3.4.12 ASAP. > > Patrick > > > On Mon, Jan 8, 2018 at 1:44 AM, Andor Molnar wrote: > > > Thanks Camille. I closed the pull request. > > > > Andor > > > >

Re: Bug in Zookeeper 3.4.11 release

I created the jira and started to work on it. https://issues.apache.org/jira/browse/ZOOKEEPER-2967 Andor On Thu, Jan 18, 2018 at 6:15 AM, Andor Molnar wrote: > Perhaps we should introduce a check of some kind? If datalogdir is > different that datadir and snapshots exist in datalog

Re: Stable version for SSL/TLS support

Hi Makarand, Afaik there's an ongoing effort to backport TLS support to version 3.4 which is currently the stable branch of Zookeeper. Abe Fine can comment on the progress I believe. As you said 3.5 and 3.6 version are still in alpha and not recommended for production usage. There's no ETA yet of

Re: [ANNOUNCE] New ZooKeeper committer: Abraham Fine

Great news! Congratulations Abe! On Tue, Jan 30, 2018 at 1:22 AM, Patrick Hunt wrote: > The Apache ZooKeeper PMC recently extended committer karma to Abe and he > has accepted. Abe has made some great contributions and we are looking > forward to even more :) > > Congratulations and welcome a

ZooKeeper 3.4.11 bug: dataDir and dataLogDir swapped

Hi all, Please be aware that 3.4.11 has a quite unfortunate bug which causes ZooKeeper to swap dataDir and dataLogDir parameters. If you configured ZK to use separate txn and snapshot folders in these two options and plan to upgrade, you'll experience that ZK is trying to load transaction logs fro

[NEW] ZK upgrade test tool

Hi, I thought it could be interesting for some of you that I started to work on an automated upgrade testing tool for ZooKeeper. https://github.com/anmolnar/zk-upgrade-test Reasoning behind it is that later, when 3.5 becomes stable, we'd like to validate if we can upgrade our 3.4 instances witho

[SUGGESTION] Target branches 3.5 and master (3.6) to Java 8

Hi all, I think it would be nice to draw a line at branch-3.5 and target Java version 8 onwards. It seems to be a good opportunity for the upgrade before we release a stable version of 3.5. The benefit would be the ability to use new features of Java 8 in the code: Do think it's feasible? Regar

Re: [SUGGESTION] Target branches 3.5 and master (3.6) to Java 8

y better, though. Another option is that we > set a release to be the one in which we migrate and let everyone know that > they need to migrate. > > -Flavio > > > > On 16 Feb 2018, at 12:05, Andor Molnar wrote: > > > > Hi all, > > > > I think it woul

Name resolution in StaticHostProvider

Hi all, We need more eyes and brains on the following PR: https://github.com/apache/zookeeper/pull/451 I added a comment few days ago about the way we currently do DNS name resolution in this class and a suggestion on how we could simplify things a little bit. We talked about it with Abe Fine, b

Re: [SUGGESTION] Target branches 3.5 and master (3.6) to Java 8

ot of > > > confusion for users and contributors. > > > > > > > > I would support moving master (3.6) to java 8, I also think it is > worth > > > considering moving to java 9. Given how long our release cycle tends to > > be > > > I think ta

Re: Name resolution in StaticHostProvider

y. Thanks, Andor On Mon, Feb 19, 2018 at 12:18 PM, Andor Molnar wrote: > Hi all, > > We need more eyes and brains on the following PR: > > https://github.com/apache/zookeeper/pull/451 > > I added a comment few days ago about the way we currently do DNS name > resolution in

Re: ZOOKEEPER-2936

Thanks Asutosh! I've added my comments to the pull request. Regards, Andor On Mon, Feb 26, 2018 at 4:42 PM, Asutosh Pandya wrote: > Hello Team, > > Have created below Pull Request for ZOOKEEPER-2936. > > Jira: https://issues.apache.org/jira/browse/ZOOKEEPER-2936 > PR: *https://github.com/apa

3.4.12

Hi dev, User has recently run into the regression of 3.4.11 (ZOOKEEPER-2960 ) (again?) Are we good to cut 3.4.12 soon or still waiting for something to be committed? Andor

Re: Name resolution in StaticHostProvider

Hi Abe, Unfortunately we haven't got any feedback yet. What do you think of implementing Option #3? Regards, Andor On Thu, Feb 22, 2018 at 6:06 PM, Andor Molnar wrote: > Did anybody happen to take a quick look by any chance? > > I don't want to push this too hard, because

Re: [SUGGESTION] Target branches 3.5 and master (3.6) to Java 8

; rest of the ecosystem has defined. Hadoop/Hbase/Kafka/... components, > Curator, etc... > > Regards, > > Patrick > > On Thu, Feb 22, 2018 at 7:52 AM, Andor Molnar wrote: > > > Is everybody happy with the plan that Tamaas suggested? > > Shall we start a vote? >

Re: [SUGGESTION] Target branches 3.5 and master (3.6) to Java 8

>From the responses on 'user' list, I think we are good to go. What do you think? Andor On Wed, Mar 7, 2018 at 12:04 PM, Andor Molnar wrote: > Okay, I dropped a mail on the user list to get some feedback. > > > Regards, > Andor > > > On Thu, Feb 22,

Re: [SUGGESTION] Target branches 3.5 and master (3.6) to Java 8

Silence probably means 'yes', so I start the vote now. *Shall we upgrade the minimum required Java version to compile and run ZooKeeper on 3.5 and master branches to Java 1.8?* *Yes / No* I vote for 'Yes'. Regards, Andor On Mon, Mar 19, 2018 at 1:35 PM, Andor Molnar

[VOTE] Upgrade 3.5 and trunk to Java8

Hi all, Let's start the vote on upgrading to Java8. https://issues.apache.org/jira/browse/ZOOKEEPER-3002 *Shall we upgrade the minimum required Java version to compile and run ZooKeeper on 3.5 and master branches to Java 1.8?* Please cast your vote by replying 'Yes' or 'No' to this thread. Than

Re: [VOTE] Upgrade 3.5 and trunk to Java8

+1 On Thu, Mar 22, 2018 at 7:04 PM, Jordan Zimmerman < jor...@jordanzimmerman.com> wrote: > +1 (non binding) > > > On Mar 22, 2018, at 12:57 PM, Andor Molnar wrote: > > > > Hi all, > > > > Let's start the vote on upgrading to Java8. > >

Re: Let's cut a ZK 3.5.4-beta release

I'm currently working on ZOOKEEPER-2184. PR has been open for ages on 3.4 branch, please review if you have some capacity. I'll port the fix to the 3.5 branch too, if we have an agreement and 3.4-version is merged. ZK-2982 is somewhat related, I believe my changes will fix that one too. ZK-1818 i

Re: [VOTE] Apache ZooKeeper release 3.4.12 candidate 0

Hi Abe, Thanks for putting this important release together. +1 I've run the following tests: - verified signatures, - all unit tests passed on Mac (java only) and Ubuntu 16.04 (java & c++ successful), - tested standalone and 3-node cluster, - verified the fix & validation of datadir/logdir swap,

Re: [VOTE] Apache ZooKeeper release 3.4.12 candidate 1

+1 for candidate 1 - verified signatures - unit test passed on Mac and Ubuntu 16.04 (including c++) - verified 3 node cluster Andor On Tue, Mar 27, 2018 at 7:05 AM, Abraham Fine wrote: > This is a bugfix release candidate for 3.4.12. It fixes 22 issues, > including issues that > affect incor

Re: [VOTE] Apache ZooKeeper release 3.4.12 candidate 1

I don't think it's a blocker. The jira and PR has been open since last December and 3.4.11 has released without it. Although this bug is also important to fix, I believe it's more important to release a fix for the regression we've found in 3.4.11 asap. Abe, any thoughts? Regards, Andor On Th

Re: [VOTE] Apache ZooKeeper release 3.4.12 candidate 1

inly a blocker, just not sure if for 3.4.11 or 3.4.12. > > > Alex > On Thu, Apr 5, 2018 at 10:29 AM Andor Molnar wrote: > > > I don't think it's a blocker. > > The jira and PR has been open since last December and 3.4.11 has released > > without it. > >

Re: [VOTE] Apache ZooKeeper release 3.4.12 candidate 1

o. > Whether its rare depends on the number of observers and participants. For > example with very few participants and many observers > your chance of hitting this are quite high. > > Alex > > On Thu, Apr 5, 2018 at 11:44 AM, Andor Molnar wrote: > > > Maybe I'm missing

Re: [VOTE] Upgrade 3.5 and trunk to Java8

gt; > > > On Sat, Mar 24, 2018 at 1:42 PM, Brian Nixon > > > > wrote: > > > > > > > +1 (non-binding) > > > > > > > > On Fri, Mar 23, 2018 at 2:15 AM, Mark Fenes > > wrote: > > > > > > > > > +1 > > >

Re: [VOTE] Upgrade 3.5 and trunk to Java8

anch35_openjdk7 > > > On Tue, Apr 17, 2018 at 5:40 AM, Andor Molnar wrote: > > > Hi all, > > > > Java 8 upgrade has been merged to the master and 3.5 branches. Thanks > > Michael and thanks everybody for the participation. > > > &

Re: [VOTE] Migrate ZK to Maven build

+1 (non-binding) On Mon, Apr 23, 2018 at 10:30 AM, Tamas Penzes wrote: > +1 (non-binding) > > On Fri, Apr 20, 2018 at 4:06 PM, Norbert Kalmar > wrote: > > > Hi, > > > > Let's start a vote on migrating to maven instead of ant. > > https://issues.apache.org/jira/browse/ZOOKEEPER-3021 > > > > *Sha

Re: Move github discussions from JIRA comments to the JIRA worklog?

definitely +1 On Tue, Apr 24, 2018 at 1:13 AM, Patrick Hunt wrote: > Hey devs, I noticed this recently filed by the Apache Arrow team: > > "Change GitHub Bot to post to Work Log instead of Comments" > https://issues.apache.org/jira/browse/INFRA-16426 > > which really resonates with me - I'm fin

Re: [VOTE] Migrate ZK to Maven build

> > On Mon, Apr 23, 2018 at 4:06 AM, Jordan Zimmerman < > > jor...@jordanzimmerman.com> wrote: > > > > > +1 (non binding) > > > > > > > On Apr 23, 2018, at 6:21 PM, Mohammad arshad < > > mohammad.ars...@huawei.com> > >

Re: Name resolution in StaticHostProvider

r On Tue, Mar 6, 2018 at 8:12 AM, Andor Molnar wrote: > Hi Abe, > > Unfortunately we haven't got any feedback yet. What do you think of > implementing Option #3? > > Regards, > Andor > > > On Thu, Feb 22, 2018 at 6:06 PM, Andor Molnar wrote: > >> D

Re: Name resolution in StaticHostProvider

e's also caching in JDK already, which means by calling getByName() you don't necessarily fire a DNS request, only when the TTL is expired. Andor On Tue, May 8, 2018 at 8:12 AM, Flavio Junqueira wrote: > Hi Andor, > > Thanks for your work on addressing the issue. > >

Re: Name resolution in StaticHostProvider

I'm happy to do that once we have an agreement. On Tue, May 8, 2018 at 8:34 AM, Flavio Junqueira wrote: > It might be a good idea to document whatever we end up doing. > > -Flavio > > > On 8 May 2018, at 17:22, Andor Molnar wrote: > > > > "If refac

Re: Name resolution in StaticHostProvider

major issue pending other than one polishing issue that > I brought upon in the PR. > > -Flavio > > > On 8 May 2018, at 21:08, Andor Molnar wrote: > > > > I'm happy to do that once we have an agreement. > > > > > > > > > > On Tue, May

Re: Name resolution in StaticHostProvider

ting that one of the elements of the host provider set is > "broken" (not resolvable). That's one interpretation. Another > interpretation is that the logic in "next" needs to indicate to the caller > that there is a problem with an item in the set of elements of the host

Re: [SUGGESTION] JvmPauseMonitor in ZooKeeper

+1 cool! On Wed, May 9, 2018 at 7:59 AM, Norbert Kalmar wrote: > Okay, thanks Ed, I created the Jira, will look into it soon :) > https://issues.apache.org/jira/browse/ZOOKEEPER-3037 > > Regards, > Norbert > > On Wed, May 9, 2018 at 4:44 PM Edward Ribeiro > wrote: > > > +1. Sounds really nice

Re: Txn logs and snapshots in git repo

Hi Ed, Static data used by unit tests. Andor On Wed, May 9, 2018 at 9:46 AM, Edward Ribeiro wrote: > I am updating my local repo and noticed some transaction logs and snapshots > files in src/java/test/data/invalidsnap/version-2. Are those files static > data used by unit tests or just artif

Re: Name resolution in StaticHostProvider

be an improvement as it will output a log message, but I'm > now wondering if we should propagate it all the way to the application. > Responding to myself, one reason for not doing it is that it is not a fatal > error unless no server can be resolved. > > > > -Flavio &g

Re: Apache ZooKeeper meetup May 9th in Palo Alto?

Thanks everybody for joining. It was great to see you folks in person and talk. Regards, Andor On Wed, May 9, 2018 at 9:44 PM, Patrick Hunt wrote: > On Wed, May 9, 2018 at 9:24 PM, Jeff Widman wrote: > > > Many thanks to Patrick, Andor and the rest of the Cloudera team for > hosting > > us t

Re: Discover LEADER from JMX

"in order to guess which is the leader I have to ask to all of the three nodes in the cluster" That's correct. Regards, Andor On Thu, May 10, 2018 at 4:07 AM, Enrico Olivelli wrote: > Il giorno mer 9 mag 2018 alle ore 20:24 Patrick Hunt ha > scritto: > > > iiuc what you are interested in th

Re: Name resolution in StaticHostProvider

Hi team, Anyone else has thoughts about whether we should use checked or unchecked exception here? Thanks, Andor On Thu, May 10, 2018 at 8:19 AM, Andor Molnar wrote: > Interesting idea. What difference you think it could make comparing to > checked? > > > > On Wed, May

Re: [VOTE] Apache ZooKeeper release 3.5.4-beta candidate 0

Hi Pat, Sorry for being late with my tests, please find my +1 here: - verified xsum/sig, - verified cluster with 11 nodes, - verified with few 4lw commands. - all unit test passed locally, - running rolling restart test for a while without errors. Thanks, Andor On Tue, May 15, 2018 at 8:51 P

Re: Name resolution in StaticHostProvider

list, > but there's an error with that address. then I think it is reasonable to > expect the caller to recover. > > But I'm also open to pros and cons :) > > Regards, > Norbert > > > > On Sat, May 12, 2018 at 4:09 PM Andor Molnar wrote: > >

Re: Maven migration doc - thoughts and suggestions

Excellent job Norbert, this doc will be very useful to discuss all kinds of aspects of the migration. I've left some comments already. Thanks, Andor On Fri, May 25, 2018 at 3:14 PM, Norbert Kalmar wrote: > Hi, > > After doing some proof of work and had some discussion, I have created a > goog

Re: ZooKeeper 3.4 to 3.5.x upgrade: "No snapshot found, but there are log entries. Something is broken!"

Hi Matteo / Michael, I confirmed that ZK cannot be upgraded to 3.5.4-beta if there's no snapshot file in the datadir. I get the same error message as Matteo reported. This could be a critical / blocker for the 3.5 release. Michael, how should we track this? I've seen you reopened ZOOKEEPER-2325 a

ZK-3034 Unable to compile C++ test files with cppunit-1.14.0

Hi devs, I'm having problems resolving the issue mentioned in this Jira and need some feedback from you: https://issues.apache.org/jira/browse/ZOOKEEPER-3034 In a nutshell the situation with *cppunit* is as follows: LibreOffice team confirmed that from version *1.14.0* they will no longer ship m

Re: ZK-3034 Unable to compile C++ test files with cppunit-1.14.0

This PR is also related: https://github.com/apache/zookeeper/pull/362 Andor On Fri, Jun 8, 2018 at 3:18 PM, Andor Molnar wrote: > Hi devs, > > I'm having problems resolving the issue mentioned in this Jira and need > some feedback from you: > > https://issues

Re: [ANNOUNCE] New ZooKeeper committer: Andor Molnar

Thanks everyone!! On Fri, Jun 8, 2018 at 11:44 PM, Michael Han wrote: > Congrats Andor, welcome aboard, and keep up the good work! > > On Fri, Jun 8, 2018 at 1:38 PM, Tamas Penzes wrote: > > > Congrats Andor, well deserved! > > > > On Fri, Jun 8, 2018 at 3:48 PM Patrick Hunt wrote: > > > > >

Re: Maven migration doc - thoughts and suggestions

d some explanation why we arrived to > > the above conclusions in the above statements. > > The link again: > > https://docs.google.com/document/d/1WXqhaPlCwchcWc8RCEzbCmVa4WbBD > lfR3GQngikGjqc/edit?usp=sharing > > > > Regards, > > Norbert > > > > On Mo

Re: ZK-3034 Unable to compile C++ test files with cppunit-1.14.0

already do something > special like generate the configure script and ship that as part of the > release? > > Patrick > > On Fri, Jun 8, 2018 at 6:44 AM Andor Molnar wrote: > > > This PR is also related: > > > > https://github.com/apache/zookeeper/pull/3

Re: ZK-3034 Unable to compile C++ test files with cppunit-1.14.0

gt; other option? > > Patrick > > On Wed, Jun 20, 2018 at 11:05 AM Andor Molnar > wrote: > > > "When is pkg-config needed?" > > > > Both. You need the macro to generate ./configure and you need pkg-config > > and cppunit.pc (part of cppunit packa

Re: Discover LEADER from JMX

gt; > > > > Cheers > > > Enrico > > > > > > Il giorno mer 20 giu 2018 alle ore 13:45 Enrico Olivelli < > > > eolive...@gmail.com> ha scritto: > > > > > > > This is my JIRA > > > > I am going to work on a patch >

Re: Discover LEADER from JMX

f yes, go ahead, if not, skip that. Hope that helps. Regards, Andor On Thu, Jun 21, 2018 at 2:39 PM, Enrico Olivelli wrote: > Andor, > > I had already tried that way but without success. > I have updated the patch with a proposal. > Thanks > > Enrico > >

Re: Recent ZK Jenkins failures due to SSL protocol changes on central

+1, drop JDK 1.6 support Andor On Fri, Jun 22, 2018 at 5:53 AM, Michael Han wrote: > +1 on dropping JDK 1.6 support for branch-3.4. > > On Thu, Jun 21, 2018 at 3:55 PM, Brian Nixon > wrote: > > > +1 for discontinuing support for jdk1.6 > > > > > > On Thu, Jun 21, 2018 at 7:58 AM, Norbert Kal

Re: ZK-3034 Unable to compile C++ test files with cppunit-1.14.0

Does anybody else has strong or not that strong opinion? Andor On Wed, Jun 20, 2018 at 8:30 PM, Andor Molnar wrote: > What do you think @andschwa? > You did some contribution on CMake recently. > > Andor > > > > On Wed, Jun 20, 2018 at 8:09 PM, Patrick Hunt wrote:

Re: Maven migration doc - thoughts and suggestions

Andor hit the points that I was going to highlight. Norbert, nice work > > pulling this together. > > > > No major red flags for me. +1 > > > > On Mon, Jun 11, 2018 at 3:29 AM, Andor Molnar > wrote: > > > > > ​Hi team, > > > > > > Just a q

Re: [VOTE] Apache ZooKeeper release 3.4.13 candidate 0

Hi Michael, Thanks for putting together this new release. My vote: -1 I've run the following tests so far: + signatures verified + java unit tests successful - unable to build C client / C++ unit tests, because ./configure script is not executable BUILD FAILED /home/andor/work/zookeeper-3.4.13/

Re: [VOTE] Apache ZooKeeper release 3.4.13 candidate 0

+ tested with different cluster sizes: 1,3,5,7 + verified a few 4lw commands + verified JMX interface Regards, Andor On Wed, Jun 27, 2018 at 2:51 PM, Andor Molnar wrote: > Hi Michael, > > Thanks for putting together this new release. > > My vote: -1 > > I've run

Re: [VOTE] Apache ZooKeeper release 3.4.13 candidate 1

+1 - signatures verified - successfully run java/c++ unit test suite on CentOS 7 - tested 1,3,7 node clusters - tested rolling upgrade from version 3.4.12 - ran a few smoke tests manually Thanks, Andor On Tue, Jul 3, 2018 at 10:54 AM, Enrico Olivelli wrote: > +1 (non binding) > > Checked sig

Re: question for observer read only mode

Hi, You might want to take a look at the following issue, looks like it's related: https://issues.apache.org/jira/browse/ZOOKEEPER-1607 Patch available, but never been committed, so the feature is basically not yet implemented. Regards, Andor On Tue, Jul 17, 2018 at 4:31 AM, 凌风郎少 wrote: >

Trying to find pattern in Flaky Tests

Hi, *branch-3.4* I've taken a quick look at our Jenkins builds and in terms of flaky tests, it looks like branch-3.4 is in a pretty good shape. The build hasn't failed for 5-6 days on all JDKs which I think is pretty awesome. *branch-3.5* This branch is in very bad condition. Which is quite unf

Re: Interesting FB article on CM at scale; LAD

Great article, thanks Pat. There're 2 things which I found particularly interesting: - Is Zeus going to be decod as part of the migration? Are the patches/improvements in it going to be open sources and possibly backported to ZooKeeper? - "Independent data store: ZooKeeper couples a data store w

Re: A new Pluggable Metrics System for ZooKeeper

Thanks for the great work Enrico. Given that you've already opened a pull request on GitHub, I think it's preferable to move the discussion to either GitHub or Jira. Regards, Andor On Fri, Aug 3, 2018 at 2:02 PM, Enrico Olivelli wrote: > ping > > Il giorno mar 24 lug 2018 alle ore 13:03 Enric

ZooKeeper 3.5 blocker issues

Hi folks, This has been raised on the user list recently as well, so I think it’s good time to review what’s left for a stable 3.5 release. The list of unresolved blocker issues from Jira is the following: https://issues.apache.org/jira/issues/?jql=project%20%3D%20ZooKeeper%20AND%20priority%20i

Re: ZooKeeper 3.5 blocker issues

Looking at the list of Critical issues, I think the following items might be considered as blockers too: ZOOKEEPER-2418 (data inconsistency) ZOOKEEPER-2778 ZOOKEEPER-2846 (data inconsistency) ZOOKEEPER-2930 (leader election deadlock) Regards, Andor > On 2018. Aug 13., at 12:38, Andor Mol

Re: ZooKeeper 3.5 blocker issues

One more item to the list which is very-very important: ZOOKEEPER-236 (SSL/TLS support for Atomic Broadcast protocol) Andor On Mon, Aug 13, 2018 at 2:09 PM, Andor Molnar wrote: > Looking at the list of Critical issues, I think the following items might > be considered as blocke

Re: Hello from your ZooKeeper friends @ Facebook

Great news, thanks Mohamed! Really appreciate your patches so far, I think contribution from Facebook is very valuable for the project. Looking forward for more! Meetup in Menlo Park would be awesome too. I'm located in Hungary so I need to make some efforts to get there, but the sooner you provid

Re: ZooKeeper 3.5 blocker issues

e the issues. I believe that if these tickets can be closed in one way or the other, we'll be able to release the upcoming 3.5 version as stable. Thoughts? Regards, Andor On Tue, Aug 14, 2018 at 11:08 AM, Andor Molnar wrote: > One more item to the list which is very-very important: >

Re: Re: ZooKeeper 3.5 blocker issues

Thanks Maoling! That would be huge help, I appreciate it. Andor

Re: Re: ZooKeeper 3.5 blocker issues

psen on 3.5 - 3.4 passed the test for the record > https://aphyr.com/posts/291-jepsen-zookeeper > * Fix all flaky tests on 3.5 - 3.4 has little or no flaky tests at all. > > > On Tue, Sep 4, 2018 at 1:48 AM, Andor Molnar > wrote: > > > Thanks Maoling! That would be huge help, I appreciate it. > > > > Andor > > >

Re: ZooKeeper 3.5 blocker issues

gt;> Andor >> >> >> >> On 09/10/2018 11:33 PM, Mohamed Jeelani wrote: >>> Thanks Andor for compiling this. Should we be ignoring ZOOKEEPER-2418 as >> well? This exists in 3.4 as well and the feature can be disabled. We are >> working on a longer term fix f

Re: ZooKeeper 3.5 blocker issues

Sep 12., at 11:52, Andor Molnar wrote: > > Cool, thanks for the clarification. > > The updated list is as follows: > > - ZOOKEEPER-236 (SSL/TLS support for Atomic Broadcast protocol) > - ZOOKEEPER-1818 (Fix don't care for trunk) > - ZOOKEEPER-2778 (Potential server dea

Re: Java version (Oracle - OpenJDK) support

Hi team, Let me quickly summarise what we’re trying to resolve on this thread. Problem #1: due to Oracle licensing changes people are expected to move away from Oracle Java and support of other “open” Java implementations will become important for ZooKeeper. Problem #2: Java 8 support will end

Re: ZooKeeper 3.5 blocker issues

7;t expect it's being merged in the next >> few weeks. So yes, it's a nice to have, but definitely not a block for 3.5. >> >> Thanks, >> Fangmin >> >> On Wed, Sep 12, 2018 at 2:55 AM Andor Molnar wrote: >> >>> Fangmin, >>>

Re: Java version (Oracle - OpenJDK) support

> On 2018. Sep 13., at 19:29, Patrick Hunt wrote: > > On Thu, Sep 13, 2018 at 1:52 AM Andor Molnar <mailto:an...@apache.org>> wrote: > >> Hi team, >> >> Let me quickly summarise what we’re trying to resolve on this thread. >> >> Pro

Re: New precommit job 'retest this please' trick

Thanks Enrico. Afaik the Rebuild button was already available for committers. How the new process any different from that? Andor On Sun, Sep 23, 2018 at 8:09 AM, Enrico Olivelli wrote: > Hi ZooKeepers, > we have enhanced the "precommit" automated QA testing. > Before merging any patch the comm

Re: New precommit job 'retest this please' trick

I usually logged in to Jenkins for other reasons, but that's also fine to have this option. Cheers Andor On Mon, Sep 24, 2018 at 3:51 PM, Enrico Olivelli wrote: > Il lun 24 set 2018, 15:25 Andor Molnar ha > scritto: > > > Thanks Enrico. Afaik the Rebuild button was a

Re: Java version (Oracle - OpenJDK) support

in a nice read :) > > "Java is still free" > https://docs.google.com/document/d/1nFGazvrCvHMZJgFstlbzoHjpAVwv5 > DEdnaBr_5pKuHo/edit > > > On Fri, Sep 14, 2018 at 6:38 PM Andor Molnar wrote: > > > > > > > > On 2018. Sep 13., at 19:29, Patric

Trunk builds are failing

Hi, As far as I can see ZOOKEEPER-2847 broke testReconfigRemoveClientFromStatic. Is that correct? Hope it will be fixed soon. Regards, Andor

Re: Prometheus Metrics Provider

Awesome news! I recommend waiting for Norbert to finish migrating the server code, before implementing a new feature to avoid harmful conflicts. He’s just about to finish rebasing: https://github.com/apache/zookeeper/pull/633 Regards, Andor >

Maven migration - main src dir moved

Hi, Please be aware that the patch which moved ZooKeeper server’s src folder to the new location has been merged. You probably need to rebase your PRs and resolve conflicts to get them merged. Sorry for the inconvenience. Regards, Andor

Re: ZooKeeper 3.5 blocker issues

; I would suggest to turn off the on disk txn sync by default for now to >>>> avoid this issue, after we finished ZOOKEEPER-3114, we can use that to >>>> validate the on disk txns during syncing. >>>> >>>> Thanks, >>>> Fangmin >>&

Decrease number of threads in Jenkins builds to reduce flakyness

Hi, What do you think of changing number of threads running unit tests in Jenkins from current 8 to 4 or even 2? Running unit tests inside Cloudera environment on a single thread shows the builds much more stable. That would be probably too slow, but maybe running at least less threads would impr

Re: Decrease number of threads in Jenkins builds to reduce flakyness

Apache runs. (Although it is much faster, but if we have to run 6-8-10 > times sometimes to get a green run...) > > Norbert > > On Fri, Oct 12, 2018 at 2:05 PM Enrico Olivelli > wrote: > > > +1 > > > > Enrico > > > > Il ven 12 ott 2018, 13:52 Andor Mol

Re: Decrease number of threads in Jenkins builds to reduce flakyness

rformance. Reducing > is fine, but do we understand why it's failing? Perhaps it's finding real > issues as a result of the artificial concurrency/load. > > Patrick > > On Fri, Oct 12, 2018 at 7:12 AM Andor Molnar > wrote: > >> Thanks for the feedback. >> I

Re: Decrease number of threads in Jenkins builds to reduce flakyness

ritto: >>>> >>>>> i think the unique port assignment (d) is more problematic than it >>>>> appears. there is a race between finding a free port and actually >>>>> grabbing it. i think that contributes to the flakiness. >>>>> >>>>

Re: Decrease number of threads in Jenkins builds to reduce flakyness

+1 On Mon, Oct 15, 2018 at 1:55 PM, Enrico Olivelli wrote: > Il giorno lun 15 ott 2018 alle ore 12:46 Andor Molnar > ha scritto: > > > > Thank you guys. This is great help. > > > > I remember your efforts Bogdan, as far as I remember you observer thread &g

Re: [VOTE] Maven migration - separation of java files to server and client project?

Thanks Norbert for taking care of this. No surprise here in a 10+ year old project. -1 (binding) for the separation Let’s keep server + client + common together for now. We can revisit this later, but the pro is that we keep the release artifact structure and not introducing breaking changes.

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