Hi,
I got below error while setting SSL properties in zkEnv.sh
==========================================================================================
2020-06-24 15:49:35,864 - INFO [main:QuorumPeerConfig@133] - Reading
configuration from: /etc/zookeeper/zoo.cfg
2020-06-24 15:49:35,874 - INFO [main:QuorumPeerConfig@385] -
clientPortAddress is 0.0.0.0/0.0.0.0:10181
2020-06-24 15:49:35,874 - INFO [main:QuorumPeerConfig@399] -
secureClientPortAddress is 0.0.0.0/0.0.0.0:2281
2020-06-24 15:49:35,878 - INFO [main:X509Util@79] - Setting -D
jdk.tls.rejectClientInitiatedRenegotiation=true to disable client-initiated
TLS renegotiation
2020-06-24 15:49:35,897 - INFO [main:DatadirCleanupManager@78] -
autopurge.snapRetainCount set to 3
2020-06-24 15:49:35,897 - INFO [main:DatadirCleanupManager@79] -
autopurge.purgeInterval set to 1
2020-06-24 15:49:35,898 - INFO [
PurgeTask:DatadirCleanupManager$PurgeTask@138] - Purge task started.
2020-06-24 15:49:35,899 - INFO [main:ManagedUtil@46] - Log4j found with
jmx enabled.
2020-06-24 15:49:35,903 - INFO [PurgeTask:FileTxnSnapLog@103] -
zookeeper.snapshot.trust.empty : false
2020-06-24 15:49:35,910 - INFO [
PurgeTask:DatadirCleanupManager$PurgeTask@144] - Purge task completed.
2020-06-24 15:49:35,975 - INFO [main:QuorumPeerMain@141] - Starting quorum
peer
2020-06-24 15:49:35,983 - INFO [main:ServerCnxnFactory@135] - Using
org.apache.zookeeper.server.NIOServerCnxnFactory as server connection
factory
2020-06-24 15:49:35,986 - INFO [main:NIOServerCnxnFactory@673] -
Configuring NIO connection handler with 10s sessionless connection timeout,
2 selector thread(s), 16 worker threads, and 64 kB direct buffers.
2020-06-24 15:49:35,992 - INFO [main:NIOServerCnxnFactory@686] - binding
to port 0.0.0.0/0.0.0.0:10181
2020-06-24 15:49:35,994 - INFO [main:ServerCnxnFactory@135] - Using
org.apache.zookeeper.server.NIOServerCnxnFactory as server connection
factory
2020-06-24 15:49:35,995 - ERROR [main:QuorumPeerMain@101] - Unexpected
exception, exiting abnormally
java.lang.UnsupportedOperationException: SSL isn't supported in
NIOServerCnxn
at
org.apache.zookeeper.server.NIOServerCnxnFactory.configure(NIOServerCnxnFactory.java:644)
at
org.apache.zookeeper.server.quorum.QuorumPeerMain.runFromConfig(QuorumPeerMain.java:155)
at
org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:123)
at
org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:82)
I have set the following properties in SERVER_JVMFLAGS in zkEnv.sh file :
"-Dzookeeper.serverCnxnFactory=org.apache.zookeeper.server.NettyServerCnxnFactory
-Dzookeeper.ssl.keyStore.location=/var/opt/vs/SecureInterface/keystore/CassSpkkeystore.p12
-Dzookeeper.ssl.keyStore.password=EvaiKiO1@123456
-Dzookeeper.ssl.trustStore.location=/var/opt/vs/SecureInterface/keystore/CassSpkTrustStore.jks
-Dzookeeper.ssl.trustStore.password=EvaiKiO1@123456"
Thanks,
---------------------
Kuldeep Singh Budania
On Mon, Jun 22, 2020 at 8:08 PM Jordan Zimmerman <jor...@jordanzimmerman.com>
wrote:
> It's the same as the normal ZooKeeper client:
> https://zookeeper.apache.org/doc/r3.6.1/zookeeperAdmin.html#sc_authOptions
> <
> https://zookeeper.apache.org/doc/r3.6.1/zookeeperAdmin.html#sc_authOptions
> >
>
> -Jordan
>
> > On Jun 22, 2020, at 5:50 AM, kuldeep singh <kuldeep.sing...@gmail.com>
> wrote:
> >
> > Hi Team,
> > How we will do secure communication between the Curator framework and
> > zookeeper 3.5.6 ?
> > I didn't get any solution right now.
> > I appreciate it if someone could help me with the same.
> >
> > Thanks,
> > ---------------------
> > Kuldeep Singh Budania
> > Software Architect
> >
> >
> > On Fri, Apr 17, 2020 at 4:53 PM Szalay-Bekő Máté <
> szalay.beko.m...@gmail.com>
> > wrote:
> >
> >> Hello Kuldeep,
> >>
> >> did you download the source from the ZooKeeper webpage, or checked out
> from
> >> git?
> >> Anyway, the following commands should work:
> >>
> >> wget
> >>
> >>
> https://downloads.apache.org/zookeeper/zookeeper-3.5.7/apache-zookeeper-3.5.7.tar.gz
> >> tar xzvf ./apache-zookeeper-3.5.7.tar.gz
> >> cd apache-zookeeper-3.5.7
> >> mvn clean install -DskipTests
> >>
> >> I tested it with OpenJDK 8u424 and maven 3.6.0.
> >>
> >> Kind regards,
> >> Mate
> >>
> >>
> >> On Fri, Apr 17, 2020 at 12:51 PM kuldeep singh <
> kuldeep.sing...@gmail.com>
> >> wrote:
> >>
> >>> Hi All,
> >>>
> >>> I have download the zookeeper source code and run the mvn command for
> >>> packaging but get problem on "zookeeper-server" directory.
> >>>
> >>> *command :- mvn clean package*
> >>>
> >>> [ERROR] Failed to execute goal
> >>> org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile
> >>> (default-compile) on project zookeeper: Fatal error compiling:
> >>> java.lang.NullPointerException -> [Help 1]
> >>> org.apache.maven.lifecycle.LifecycleExecutionException: Failed to
> execute
> >>> goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile
> >>> (default-compile) on project zookeeper: Fatal error compiling
> >>> at
> >>>
> >>>
> >>
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:216)
> >>> at
> >>>
> >>>
> >>
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
> >>> at
> >>>
> >>>
> >>
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
> >>> at
> >>>
> >>>
> >>
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:108)
> >>> at
> >>>
> >>>
> >>
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:76)
> >>> at
> >>>
> >>>
> >>
> org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
> >>> at
> >>>
> >>>
> >>
> org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:116)
> >>> at
> org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:361)
> >>> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:155)
> >>> at org.apache.maven.cli.MavenCli.execute(MavenCli.java:584)
> >>> at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:213)
> >>> at org.apache.maven.cli.MavenCli.main(MavenCli.java:157)
> >>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> >>> at
> >>>
> >>>
> >>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> >>> at
> >>>
> >>>
> >>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> >>> at java.lang.reflect.Method.invoke(Method.java:498)
> >>> at
> >>>
> >>>
> >>
> org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
> >>> at
> >>>
> >>
> org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
> >>> at
> >>>
> >>>
> >>
> org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
> >>> at
> >>>
> org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
> >>> Caused by: org.apache.maven.plugin.MojoExecutionException: Fatal error
> >>> compiling
> >>> at
> >>>
> >>>
> >>
> org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:1140)
> >>> at
> >>>
> >>>
> >>
> org.apache.maven.plugin.compiler.CompilerMojo.execute(CompilerMojo.java:188)
> >>> at
> >>>
> >>>
> >>
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:133)
> >>> at
> >>>
> >>>
> >>
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
> >>> ... 19 more
> >>> Caused by: org.codehaus.plexus.compiler.CompilerException:
> >>> java.lang.NullPointerException
> >>> at
> >>>
> >>>
> >>
> org.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess(JavaxToolsCompiler.java:173)
> >>> at
> >>>
> >>>
> >>
> org.codehaus.plexus.compiler.javac.JavacCompiler.performCompile(JavacCompiler.java:174)
> >>> at
> >>>
> >>>
> >>
> org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:1129)
> >>> ... 22 more
> >>> Caused by: java.lang.RuntimeException: java.lang.NullPointerException
> >>> at com.sun.tools.javac.main.Main.compile(Main.java:559)
> >>> at
> >>> com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:129)
> >>> at
> >>> com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:138)
> >>> at
> >>>
> >>>
> >>
> org.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess(JavaxToolsCompiler.java:126)
> >>> ... 24 more
> >>> Caused by: java.lang.NullPointerException
> >>> at
> >>>
> >>>
> >>
> com.sun.tools.javac.model.JavacTypes.getOverriddenMethods(JavacTypes.java:306)
> >>> at com.sun.tools.doclint.Env.setCurrent(Env.java:155)
> >>> at com.sun.tools.doclint.Checker.scan(Checker.java:144)
> >>> at com.sun.tools.doclint.DocLint$2.visitDecl(DocLint.java:285)
> >>> at
> >>> com.sun.tools.doclint.DocLint$DeclScanner.visitClass(DocLint.java:359)
> >>> at
> >>> com.sun.tools.doclint.DocLint$DeclScanner.visitClass(DocLint.java:346)
> >>> at
> >>> com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:720)
> >>> at
> >>> com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:68)
> >>> at
> >>> com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:81)
> >>> at
> >>> com.sun.source.util.TreeScanner.visitNewClass(TreeScanner.java:280)
> >>> at
> >>> com.sun.tools.javac.tree.JCTree$JCNewClass.accept(JCTree.java:1532)
> >>> at
> >>> com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:68)
> >>> at
> >>> com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:81)
> >>> at
> >>> com.sun.source.util.TreeScanner.visitVariable(TreeScanner.java:153)
> >>> at
> >>>
> com.sun.tools.doclint.DocLint$DeclScanner.visitVariable(DocLint.java:373)
> >>> at
> >>>
> com.sun.tools.doclint.DocLint$DeclScanner.visitVariable(DocLint.java:346)
> >>> at
> >>> com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:864)
> >>> at
> >>> com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:68)
> >>> at
> >>> com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:81)
> >>> at com.sun.source.util.TreeScanner.scan(TreeScanner.java:91)
> >>> at
> >>> com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:99)
> >>> at
> >> com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:133)
> >>> at
> >>> com.sun.tools.doclint.DocLint$DeclScanner.visitClass(DocLint.java:360)
> >>> at
> >>> com.sun.tools.doclint.DocLint$DeclScanner.visitClass(DocLint.java:346)
> >>> at
> >>> com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:720)
> >>> at
> >>> com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:68)
> >>> at com.sun.source.util.TreeScanner.scan(TreeScanner.java:91)
> >>> at
> >>> com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:99)
> >>> at
> >>>
> >>
> com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:120)
> >>> at
> >>>
> >>>
> >>
> com.sun.tools.doclint.DocLint$DeclScanner.visitCompilationUnit(DocLint.java:354)
> >>> at
> >>>
> >>>
> >>
> com.sun.tools.doclint.DocLint$DeclScanner.visitCompilationUnit(DocLint.java:346)
> >>> at
> >>>
> com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:550)
> >>> at
> >>> com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:68)
> >>> at com.sun.tools.doclint.DocLint$3.started(DocLint.java:296)
> >>> at
> >>>
> >>>
> >>
> com.sun.tools.javac.api.ClientCodeWrapper$WrappedTaskListener.started(ClientCodeWrapper.java:668)
> >>> at
> >>>
> >>>
> >>
> com.sun.tools.javac.api.MultiTaskListener.started(MultiTaskListener.java:103)
> >>> at
> >>> com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1240)
> >>> at
> >>> com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:901)
> >>> at
> >>> com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:860)
> >>> at com.sun.tools.javac.main.Main.compile(Main.java:523)
> >>> ... 27 more
> >>> [ERROR]
> >>> [ERROR] Re-run Maven using the -X switch to enable full debug logging.
> >>> [ERROR]
> >>> [ERROR] For more information about the errors and possible solutions,
> >>> please read the following articles:
> >>> [ERROR] [Help 1]
> >>>
> http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
> >>>
> >>> Can someone help me on this issue?
> >>>
> >>> Thanks,
> >>> ---------------------
> >>> Kuldeep Singh Budania
> >>>
> >>>
> >>>
> >>> On Sat, Apr 4, 2020 at 5:57 PM Szalay-Bekő Máté <
> >>> szalay.beko.m...@gmail.com>
> >>> wrote:
> >>>
> >>>> these exceptions can mean many things... I think this can be even
> >> normal
> >>>> duding rolling restart (as some connections get broken in this case)
> >>>>
> >>>> However, I saw cases already when exceptions like these killed
> receiver
> >>> or
> >>>> sender threads in QuorumCnxManager / Leader Election in such a way
> that
> >>>> they were not able to recover, so the node was unable to connect to
> any
> >>>> quorum until restart. I remember seeing this in 3.4 too.
> >>>>
> >>>> Do you see these exceptions in the second server (the one which you
> >> just
> >>>> upgraded in step 3)?
> >>>> Is this issue reproducible?
> >>>>
> >>>> What is the tickTime and initLimit you use? Maybe the server just
> >> require
> >>>> more time to sync?
> >>>>
> >>>> I would need more logs to really see what happened. Can you create a
> >> Jira
> >>>> issue and upload the logs and also the ZooKeeper configs? I am happy
> to
> >>>> take a closer look.
> >>>> (if you need to re-run the test to collect the logs, then enabling
> >> DEBUG
> >>>> logs would be great. The INFO level logs are usually enough for these
> >>>> problems, but one can never know...)
> >>>>
> >>>> Kind regards,
> >>>> Mate
> >>>>
> >>>>
> >>>> On Fri, Apr 3, 2020 at 10:05 AM kuldeep singh <
> >> kuldeep.sing...@gmail.com
> >>>>
> >>>> wrote:
> >>>>
> >>>>> Hi Team,
> >>>>>
> >>>>> I have done some POC on rolling upgrade and found below result.
> >>>>>
> >>>>>
> >>>>> 1. On 1st node upgrade zookeeper . Traffic was running fine
> >> because
> >>> 2
> >>>>> nodes are already on old zookeeper.
> >>>>> 2. On 1st node upgrade our application and didn’t find any issue
> >>>>> 3. On 2nd node upgrade zookeeper but got below error and zookeeper
> >>> is
> >>>>> not taking any requests
> >>>>> 4.
> >>>>>
> >>>>> java.io.EOFException
> >>>>>
> >>>>> at java.io.DataInputStream.readInt(DataInputStream.java:392)
> >>>>>
> >>>>> at
> >>>>>
> >>>>>
> >>>>
> >>>
> >>
> org.apache.zookeeper.server.quorum.QuorumCnxManager$RecvWorker.run(QuorumCnxManager.java:747)
> >>>>>
> >>>>> 2020-03-30 14:19:55,587 - WARN
> >>>>> [RecvWorker:1:QuorumCnxManager$RecvWorker@765] - Interrupting
> >>> SendWorker
> >>>>>
> >>>>> 2020-03-30 14:19:55,588 - ERROR [LearnerHandler-/192.168.44.73:33754
> >>>>> :LearnerHandler@562] - Unexpected exception causing shutdown while
> >>> sock
> >>>>> still open
> >>>>>
> >>>>> java.io.EOFException
> >>>>>
> >>>>> at java.io.DataInputStream.readInt(DataInputStream.java:392)
> >>>>>
> >>>>> at
> >>>>>
> >> org.apache.jute.BinaryInputArchive.readInt(BinaryInputArchive.java:63)
> >>>>>
> >>>>> at
> >>>>>
> >>>>>
> >>>>
> >>>
> >>
> org.apache.zookeeper.server.quorum.QuorumPacket.deserialize(QuorumPacket.java:83)
> >>>>>
> >>>>> at
> >>>>>
> >>>>
> >>>
> >>
> org.apache.jute.BinaryInputArchive.readRecord(BinaryInputArchive.java:108)
> >>>>>
> >>>>> at
> >>>>>
> >>>>>
> >>>>
> >>>
> >>
> org.apache.zookeeper.server.quorum.LearnerHandler.run(LearnerHandler.java:476)
> >>>>>
> >>>>> 2020-03-30 14:19:55,588 - WARN
> >>>>> [SendWorker:1:QuorumCnxManager$SendWorker@679] - Interrupted while
> >>>> waiting
> >>>>> for message on queue
> >>>>>
> >>>>> Please let me know is this the known issue or this is different issue
> >>>> which
> >>>>> is mention in Apache zookeeper documentation when upgrading from
> >> 3.4.5
> >>> to
> >>>>> 3.5.6
> >>>>>
> >>>>> Thanks,
> >>>>> ---------------------
> >>>>> Kuldeep Singh Budania
> >>>>> Software Architect
> >>>>>
> >>>>>
> >>>>>
> >>>>> On Sun, Mar 29, 2020 at 9:06 AM Alexander Shraer <shra...@gmail.com>
> >>>>> wrote:
> >>>>>
> >>>>>> +1 to what Mate said (I wrote the quoted instructions).
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> On Tue, Mar 24, 2020 at 7:03 AM Szalay-Bekő Máté <
> >>>>>> szalay.beko.m...@gmail.com>
> >>>>>> wrote:
> >>>>>>
> >>>>>>> Hi Kuldeep,
> >>>>>>>
> >>>>>>> I just want to provide you some background info about our
> >>>>> documentation.
> >>>>>>> The reason to upgrade to 3.4.6 first is to avoid the following
> >>> error:
> >>>>>>>
> >>>>>>>> 2013-01-30 11:32:10,663 [myid:2] - WARN [localhost/
> >>> 127.0.0.1:2784
> >>>>>>> :QuorumCnxManager@349] - Invalid server id: -65536
> >>>>>>>
> >>>>>>> This error comes because of the protocol changes between
> >> ZooKeeper
> >>>>> server
> >>>>>>> nodes during connection initiation for leader election. In
> >>> ZooKeeper
> >>>>> 3.5
> >>>>>> a
> >>>>>>> protocol version was introduced (see ZOOKEEPER-107) and since
> >> that
> >>>> time
> >>>>>> the
> >>>>>>> fist long value sent in the initial message is not the server ID
> >>> but
> >>>>> the
> >>>>>>> protocol version (-65536). In ZooKeeper 3.4.6 we made the old 3.4
> >>>>>>> ZooKeepers backward compatible, so they are able to parse both
> >> the
> >>>> old
> >>>>>> and
> >>>>>>> the new protocol format (see ZOOKEEPER-1633). This issue happens
> >>> only
> >>>>>> when
> >>>>>>> you need to use old (3.4.0 - 3.4.5) and new (3.5.0+) ZooKeeper
> >>>> servers
> >>>>>>> together in the same cluster. During a rolling upgrade, this is
> >>>> usually
> >>>>>> the
> >>>>>>> case to have old and new ZooKeepers present together.
> >>>>>>>
> >>>>>>> The fact that you haven't seen any issues might be caused by the
> >>>> order
> >>>>> of
> >>>>>>> the servers. In ZooKeeper the connection initiation between the
> >>>> servers
> >>>>>>> during the leader election follows a specific rule. As far as I
> >>>>> remember
> >>>>>>> always the server with the larger ID 'wins the challenge', so it
> >> is
> >>>>>>> possible, that the old server didn't need to parse any initial
> >>>> message
> >>>>>> (if
> >>>>>>> it had the largest ID) and this is why you haven't seen the
> >> issue.
> >>>> Also
> >>>>>>> having 2 nodes up from the 3 nodes cluster still makes the
> >> cluster
> >>>> work
> >>>>>> (so
> >>>>>>> you should also check if all the servers are part of the quorum).
> >>>>>>>
> >>>>>>> I agree with Enrico and Norbert, the safest and most stable way
> >> is
> >>>>>> upgrade
> >>>>>>> first to 3.4.latest, then go to 3.5.latest. Still, if you don't
> >> see
> >>>>> that
> >>>>>>> you would hit this specific issue (e.g. no "Invalid server id" in
> >>> the
> >>>>> log
> >>>>>>> files), and all the three servers can handle traffic, then maybe
> >>> you
> >>>>>> don't
> >>>>>>> need to upgrade first to 3.4.latest, it is your decision.
> >>> Definitely
> >>>>> you
> >>>>>>> should test it first, as suggested by the others.
> >>>>>>>
> >>>>>>> Kind regards,
> >>>>>>> Mate
> >>>>>>>
> >>>>>>> On Tue, Mar 24, 2020 at 12:29 PM Norbert Kalmar
> >>>>>>> <nkal...@cloudera.com.invalid> wrote:
> >>>>>>>
> >>>>>>>> Hi,
> >>>>>>>>
> >>>>>>>> That guide is to upgrade to 3.5.0, which was an alpha version.
> >> A
> >>>> lot
> >>>>>> has
> >>>>>>>> changed for the first stable release of 3.5.5 and then a few
> >>> more,
> >>>>> even
> >>>>>>>> rolling upgrade issues have been fixed for 3.5.6.
> >>>>>>>> This is a more up-to-date guide:
> >>>>>>>>
> >>> https://cwiki.apache.org/confluence/display/ZOOKEEPER/Upgrade+FAQ
> >>>>>>>>
> >>>>>>>> If you have done your testing (with prod snapshot!), then you
> >> can
> >>>>> skip
> >>>>>>> 3.4
> >>>>>>>> latest upgrade, but keep in mind we do our recommendations for
> >> a
> >>>>>> reason.
> >>>>>>>> There were issues reported and/or found during testing. Some
> >> are
> >>>>> fixed
> >>>>>>> with
> >>>>>>>> 3.5.6, some only happens if certain conditions stand
> >>> (IOException:
> >>>> No
> >>>>>>>> snapshot found - mentioned in the guide, fixed in 3.5.6).
> >>>>>>>>
> >>>>>>>> So it is up to you, I would still recommend to do an 3.4
> >> upgrade
> >>>>> first,
> >>>>>>> if
> >>>>>>>> it's feasible.
> >>>>>>>>
> >>>>>>>> Regards,
> >>>>>>>> Norbert
> >>>>>>>>
> >>>>>>>> On Tue, Mar 24, 2020 at 11:45 AM kuldeep singh <
> >>>>>>> kuldeep.sing...@gmail.com>
> >>>>>>>> wrote:
> >>>>>>>>
> >>>>>>>>> Hi,
> >>>>>>>>>
> >>>>>>>>> Current Zookeeper version :- 3.4.5
> >>>>>>>>> Upgraded version :- 3.5.6
> >>>>>>>>>
> >>>>>>>>> We are not going with 3.5.7. Our final decision is zookeeper
> >>>>> version
> >>>>>> is
> >>>>>>>>> 3.5.6
> >>>>>>>>> as per your reply first we need to move latest version of
> >>> 3.4.x,
> >>>>> like
> >>>>>>>> below
> >>>>>>>>>
> >>>>>>>>> 3.4.5 -> 3.4.14 -> 3.5.6 (Correct me if I am wrong here)
> >>>>>>>>>
> >>>>>>>>> But if We are not facing any problem that i have shared you
> >>> that
> >>>> we
> >>>>>>> have
> >>>>>>>>> set up of 3 node cluster where 2 node are on 3.5.6 version
> >> and
> >>> 1
> >>>>> node
> >>>>>>> on
> >>>>>>>>> 3.4.5, Everything is running fine and didn't get any issue,
> >> So
> >>>> what
> >>>>>>> other
> >>>>>>>>> problem we can face if we directly move to 3.5.6
> >>>>>>>>>
> >>>>>>>>> Thanks,
> >>>>>>>>> ---------------------
> >>>>>>>>> Kuldeep Singh Budania
> >>>>>>>>> Software Architect
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>> On Tue, Mar 24, 2020 at 3:58 PM Enrico Olivelli <
> >>>>> eolive...@gmail.com
> >>>>>>>
> >>>>>>>>> wrote:
> >>>>>>>>>
> >>>>>>>>>> Hi
> >>>>>>>>>> You have to upgrade to latest 3.4.x Zookeeper then you will
> >>>>> upgrade
> >>>>>>> to
> >>>>>>>>>> 3.5.7.
> >>>>>>>>>> All should run well without issues
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>> Enrico
> >>>>>>>>>>
> >>>>>>>>>> Il Mar 24 Mar 2020, 10:18 kuldeep singh <
> >>>>> kuldeep.sing...@gmail.com
> >>>>>>>
> >>>>>>> ha
> >>>>>>>>>> scritto:
> >>>>>>>>>>
> >>>>>>>>>>> Hi Team,
> >>>>>>>>>>>
> >>>>>>>>>>> We are upgrading zookeeper from 3.4.5 to 3.5.6. I have
> >> set
> >>>> up 3
> >>>>>>> node
> >>>>>>>>>>> cluster where 2 node are on 3.5.6 version and 1 node on
> >>>> 3.4.5.
> >>>>>>>>>>>
> >>>>>>>>>>> Everything is running fine and didn't get any issue on my
> >>>>> system.
> >>>>>>>>>>>
> >>>>>>>>>>> but I found something on apache site that first we need
> >> to
> >>>>>> upgrade
> >>>>>>>> on
> >>>>>>>>>>> 3.4.6 than we can upgrade to 3.5.6. So is it mandatory
> >> to
> >>> go
> >>>>> on
> >>>>>>>> 3.4.6
> >>>>>>>>>>> first.
> >>>>>>>>>>>
> >>>>>>>>>>> *Upgrading to 3.5.0*
> >>>>>>>>>>>
> >>>>>>>>>>> Upgrading a running ZooKeeper ensemble to 3.5.0 should be
> >>>> done
> >>>>>> only
> >>>>>>>>> after
> >>>>>>>>>>> upgrading your ensemble to the 3.4.6 release. Note that
> >>> this
> >>>> is
> >>>>>>> only
> >>>>>>>>>>> necessary for rolling upgrades (if you're fine with
> >>> shutting
> >>>>> down
> >>>>>>> the
> >>>>>>>>>>> system completely, you don't have to go through 3.4.6).
> >> If
> >>>> you
> >>>>>>>> attempt
> >>>>>>>>> a
> >>>>>>>>>>> rolling upgrade without going through 3.4.6 (for example
> >>> from
> >>>>>>> 3.4.5),
> >>>>>>>>> you
> >>>>>>>>>>> may get the following error:
> >>>>>>>>>>>
> >>>>>>>>>>> 2013-01-30 11:32:10,663 [myid:2] - INFO [localhost/
> >>>>>> 127.0.0.1:2784
> >>>>>>>>>>> :QuorumCnxManager$Listener@498] - Received connection
> >>>> request
> >>>>> /
> >>>>>>>>>>> 127.0.0.1:60876
> >>>>>>>>>>>
> >>>>>>>>>>> 2013-01-30 11:32:10,663 [myid:2] - WARN [localhost/
> >>>>>> 127.0.0.1:2784
> >>>>>>>>>>> :QuorumCnxManager@349] - Invalid server id: -65536
> >>>>>>>>>>>
> >>>>>>>>>>> During a rolling upgrade, each server is taken down in
> >> turn
> >>>> and
> >>>>>>>>> rebooted
> >>>>>>>>>>> with the new 3.5.0 binaries. Before starting the server
> >>> with
> >>>>>> 3.5.0
> >>>>>>>>>>> binaries, we highly recommend updating the configuration
> >>> file
> >>>>> so
> >>>>>>> that
> >>>>>>>>> all
> >>>>>>>>>>> server statements "server.x=..." contain client ports
> >> (see
> >>>> the
> >>>>>>>> section
> >>>>>>>>>>> Specifying
> >>>>>>>>>>> the client port). As explained earlier you may leave the
> >>>>>>>> configuration
> >>>>>>>>>> in a
> >>>>>>>>>>> single file, as well as leave the
> >>>> clientPort/clientPortAddress
> >>>>>>>>> statements
> >>>>>>>>>>> (although if you specify client ports in the new format,
> >>>> these
> >>>>>>>>> statements
> >>>>>>>>>>> are now redundant).
> >>>>>>>>>>>
> >>>>>>>>>>> Could you please let me know about this case. Appreciate
> >> if
> >>>>>> respond
> >>>>>>>>> soon.
> >>>>>>>>>>>
> >>>>>>>>>>> Thanks,
> >>>>>>>>>>> ---------------------
> >>>>>>>>>>> Kuldeep Singh Budania
> >>>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>
> >>>>>>>>
> >>>>>>>
> >>>>>>
> >>>>>
> >>>>
> >>>
> >>
>
>
