Does not seem to work on Windows 10

[Jeff17Robbins]

I downloaded etcd-v3.2.5-windows-amd64 from Releases and ran etcd.exe.

I then followed the instructions to build and run zetcd:

go get github.com/coreos/zetcd/cmd/zetcd
zetcd --zkaddr 0.0.0.0:2181 --endpoints localhost:2379

Output of zetcd:

C:\Users\jeffr\go\bin>zetcd --zkaddr 0.0.0.0:2181 --endpoints localhost:2379
Running zetcd proxy
Version: Version not provided (use make instead of go build)
SHA: SHA not provided (use make instead of go build)

I then ran the zkctl simple test:

go get github.com/coreos/zetcd/cmd/zkctl
zkctl watch / &
zkctl create /abc "foo"

The zkctl watch / command produced this output:

C:\Users\jeffr\go\bin>zkctl watch /
watch dir /
2017/08/10 14:50:16 Connected to 127.0.0.1:2181
2017/08/10 14:50:16 Authenticated: id=7587824084266938116, timeout=1000
[] &{Czxid:0 Mzxid:0 Ctime:0 Mtime:0 Version:0 Cversion:-1 Aversion:0 EphemeralOwner:0 DataLength:0 NumChildren:1 Pzxid:0}

The zkctl create /abc "foo" command produced this output:

C:\Users\jeffr\go\bin>zkctl create /abc "foo"
2017/08/10 14:50:43 Connected to 127.0.0.1:2181
2017/08/10 14:50:43 Authenticated: id=7587824084266938119, timeout=1000

But then the zkctl watch / command seemed to have a problem and quit running (I'm assuming this is unexpected output?):

{Type:EventNodeChildrenChanged State:Unknown Path:/ Err:<nil> Server:}

I am completely new to both etcd and zetcd, so I apologize in advance for not knowing what I am doing. Ought this example work?

My go version is:

go version go1.8.3 windows/amd64

2017-08-10 14:50:16.678468 W | etcdserver: apply entries took too long [408.5913ms for 1 entries] 2017-08-10 14:50:16.680467 W | etcdserver: avoid queries with large range/delete range! 2017-08-10 14:50:43.719299 W | etcdserver: apply entries took too long [256.5433ms for 1 entries] 2017-08-10 14:50:43.719299 W | etcdserver: avoid queries with large range/delete range! 2017-08-10 14:50:45.520147 W | etcdserver: apply entries took too long [158.998ms for 1 entries] 2017-08-10 14:50:45.521148 W | etcdserver: avoid queries with large range/delete range!

[heyitsanthony]

Compared against a regular zk node, works as intended:

Launched zk:

$ docker run --net host --rm zetcd-zk-test
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper/conf/zoo.cfg
2017-08-10 19:12:20,422 [myid:] - INFO  [main:QuorumPeerConfig@103] - Reading configuration from: /opt/zookeeper/conf/zoo.cfg
2017-08-10 19:12:20,428 [myid:] - INFO  [main:DatadirCleanupManager@78] - autopurge.snapRetainCount set to 3
2017-08-10 19:12:20,428 [myid:] - INFO  [main:DatadirCleanupManager@79] - autopurge.purgeInterval set to 0
2017-08-10 19:12:20,428 [myid:] - INFO  [main:DatadirCleanupManager@101] - Purge task is not scheduled.
2017-08-10 19:12:20,429 [myid:] - WARN  [main:QuorumPeerMain@113] - Either no config or no quorum defined in config, running  in standalone mode
2017-08-10 19:12:20,443 [myid:] - INFO  [main:QuorumPeerConfig@103] - Reading configuration from: /opt/zookeeper/conf/zoo.cfg
2017-08-10 19:12:20,443 [myid:] - INFO  [main:ZooKeeperServerMain@95] - Starting server
2017-08-10 19:12:20,451 [myid:] - INFO  [main:Environment@100] - Server environment:zookeeper.version=3.4.8--1, built on 02/06/2016 03:18 GMT
2017-08-10 19:12:20,451 [myid:] - INFO  [main:Environment@100] - Server environment:host.name=cc0db6606a67
2017-08-10 19:12:20,451 [myid:] - INFO  [main:Environment@100] - Server environment:java.version=1.8.0_111-internal
2017-08-10 19:12:20,451 [myid:] - INFO  [main:Environment@100] - Server environment:java.vendor=Oracle Corporation
2017-08-10 19:12:20,452 [myid:] - INFO  [main:Environment@100] - Server environment:java.home=/usr/lib/jvm/java-1.8-openjdk/jre
2017-08-10 19:12:20,452 [myid:] - INFO  [main:Environment@100] - Server environment:java.class.path=/opt/zookeeper/bin/../build/classes:/opt/zookeeper/bin/../build/lib/*.jar:/opt/zookeeper/bin/../lib/slf4j-log4j12-1.6.1.jar:/opt/zookeeper/bin/../lib/slf4j-api-1.6.1.jar:/opt/zookeeper/bin/../lib/netty-3.7.0.Final.jar:/opt/zookeeper/bin/../lib/log4j-1.2.16.jar:/opt/zookeeper/bin/../lib/jline-0.9.94.jar:/opt/zookeeper/bin/../zookeeper-3.4.8.jar:/opt/zookeeper/bin/../src/java/lib/*.jar:/opt/zookeeper/bin/../conf:
2017-08-10 19:12:20,452 [myid:] - INFO  [main:Environment@100] - Server environment:java.library.path=/usr/lib/jvm/java-1.8-openjdk/jre/lib/amd64/server:/usr/lib/jvm/java-1.8-openjdk/jre/lib/amd64:/usr/lib/jvm/java-1.8-openjdk/jre/../lib/amd64:/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
2017-08-10 19:12:20,452 [myid:] - INFO  [main:Environment@100] - Server environment:java.io.tmpdir=/tmp
2017-08-10 19:12:20,452 [myid:] - INFO  [main:Environment@100] - Server environment:java.compiler=<NA>
2017-08-10 19:12:20,454 [myid:] - INFO  [main:Environment@100] - Server environment:os.name=Linux
2017-08-10 19:12:20,454 [myid:] - INFO  [main:Environment@100] - Server environment:os.arch=amd64
2017-08-10 19:12:20,454 [myid:] - INFO  [main:Environment@100] - Server environment:os.version=4.11.9
2017-08-10 19:12:20,454 [myid:] - INFO  [main:Environment@100] - Server environment:user.name=root
2017-08-10 19:12:20,454 [myid:] - INFO  [main:Environment@100] - Server environment:user.home=/root
2017-08-10 19:12:20,454 [myid:] - INFO  [main:Environment@100] - Server environment:user.dir=/opt/zookeeper
2017-08-10 19:12:20,464 [myid:] - INFO  [main:ZooKeeperServer@787] - tickTime set to 2000
2017-08-10 19:12:20,465 [myid:] - INFO  [main:ZooKeeperServer@796] - minSessionTimeout set to -1
2017-08-10 19:12:20,465 [myid:] - INFO  [main:ZooKeeperServer@805] - maxSessionTimeout set to -1
2017-08-10 19:12:20,501 [myid:] - INFO  [main:NIOServerCnxnFactory@89] - binding to port 0.0.0.0/0.0.0.0:2181

Started watch:

 $ ./zkctl watch /
watch dir /
2017/08/10 12:13:33 Connected to 127.0.0.1:2181
2017/08/10 12:13:34 Authenticated: id=98460789108375552, timeout=4000
[zookeeper] &{Czxid:0 Mzxid:0 Ctime:0 Mtime:0 Version:0 Cversion:-1 Aversion:0 EphemeralOwner:0 DataLength:0 NumChildren:1 Pzxid:0}

Created key:

$ ./zkctl create /abc def
2017/08/10 12:14:36 Connected to 127.0.0.1:2181
2017/08/10 12:14:36 Authenticated: id=98460789108375553, timeout=4000

Watch received as expected

{Type:EventNodeChildrenChanged State:Unknown Path:/ Err:<nil> Server:}

The watches are one shot in zkctl (https://github.com/coreos/zetcd/blob/master/cmd/zkctl/zkctl.go#L121) so it will exit on receiving an event. The command uses a children watch, so it only receives create/delete (EventNodeChildrenChanged) but not set. Sorry it's so cryptic, the output/documentation/behavior could use some improvement. Maybe the commands should be more similar to zkCli?

The etcd apply warnings are usually because etcd can't persist data fast enough; typically something else on the system is eating cpu/disk bandwidth.

[Jeff17Robbins]

Oh, my bad, sorry!

According to this kubernetes issue,

Any LIST query will result in this log line in etcd:

etcdserver: avoid queries with large range/delete range! 

This is kind of working-as-intended.

I am guessing that zetcd uses a LIST query?

[heyitsanthony]

No, list is a k8s only thing. It happens whenever an rpc takes too long in the raft path.

I don't think it's related to zetcd. Try go get github.com/coreos/etcd/cmd/benchmark and see how etcd on that machine compares to the benchmarks at https://github.com/coreos/etcd/blob/master/Documentation/op-guide/performance.md#benchmarks

[Jeff17Robbins]

sorry, more newbie floundering:

C:\Users\jeffr\go>go get github.com/coreos/etcd/cmd/benchmark package github.com/coreos/etcd/cmd/benchmark: cannot find package " github.com/coreos/etcd/cmd/benchmark" in any of: C:\Go\src\github.com\coreos\etcd\cmd\benchmark (from $GOROOT) c:\Users\jeffr\go\src\github.com\coreos\etcd\cmd\benchmark (from $GOPATH)

On Thu, Aug 10, 2017 at 3:56 PM Anthony Romano [email protected] wrote:

No, list is a k8s only thing. It happens whenever an rpc takes too long in the raft path.

I don't think it's related to zetcd. Try go get github.com/coreos/etcd/cmd/benchmark and see how etcd on that machine compares to the benchmarks at https://github.com/coreos/etcd/blob/master/Documentation/op-guide/performance.md#benchmarks

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[heyitsanthony]

Oops, go get github.com/coreos/etcd/cmd/tools/benchmark; not sure if it will build that way on windows since some parts depend on junctions that are set up by build.bat.

[Jeff17Robbins]

That failed too. I'm too new at this to be all that helpful, sorry about that. My main interest in zetcd is to run Kafka without Zookeeper. I'm hoping I have things working well enough to start trying that.

On Thu, Aug 10, 2017 at 4:30 PM Anthony Romano [email protected] wrote:

Oops, go get github.com/coreos/etcd/cmd/tools/benchmark; not sure if it will build that way on windows since some parts depend on junctions that are set up by build.bat.

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