zk | Zookeeper CLI designed to be fast easy to install | Runtime Evironment library
kandi X-RAY | zk Summary
kandi X-RAY | zk Summary
zk is a command line client to the Zookeeper distributed storage service designed to be fast, easy to install, and Unix-friendly. It's written in Go.
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Top functions reviewed by kandi - BETA
- main is the entry point for testing .
- runWatch executes a watch command .
- runChildren is used to handle children of children
- runStat executes stat command .
- runSet sets a file at path .
- runHelp prints help for each command .
- runGet executes a get command .
- runDelete deletes a file at path .
- runCreate is the entry point for create command
- init initializes the list of commands .
zk Key Features
zk Examples and Code Snippets
Lines of Code : 7License : Permissive (MIT License)
Copypublic void closeConnection() {
try {
zkConnection.close();
} catch (InterruptedException e) {
System.out.println(e.getMessage());
}
} Community Discussions
Trending Discussions on zk
QUESTION
I'm new to ZoKrates and ZK stuff in general. I am confused about how the witness works. If I compute an invalid witness the verifier still verifies the proof as correct. For example (based on ZoKrates "get started").
Given this program:
...ANSWER
Answered 2021-May-28 at 21:39I have realised the understanding that I was missing and it is rather simple. The proof in this case is not verifying that a * a is equal to b but instead it is simply a proof that I have run the computation.
For example the following generates a proof that I have run this program with a = 337 and b = 113569 and the return value is true.
QUESTION
I am using a kafka environment via docker. It went up correctly!
But I can't perform REST queries with my python script...
I am trying to read all messages received on the streamer!
Any suggestions for correction?
Sorry for the longs outputs, I wanted to detail the problem to facilitate debugging :)
consumer.py
...ANSWER
Answered 2021-May-18 at 04:40just use kafka-python package.
QUESTION
In the hbase-1.4.10, I have enabled replication for all tables and configured the peer_id. the list_peers provide the below result:
...ANSWER
Answered 2021-May-17 at 14:27The above issue has been already filed under the below issue.
https://issues.apache.org/jira/browse/HBASE-22784
Upgrading to 1.4.11 fixed the zknode grows exponetially
QUESTION
I am trying to start a basic project structure where multiple spring boot application will share resources using apache curator.
I am following the guides specified in documentation but changing the nodes doesnt trigger any events
Please, any help would be appreciated
pom.xml
...ANSWER
Answered 2021-May-09 at 20:09So yeah that class name PathChildrenCache was a dead giveaway. It sounded strange https://www.youtube.com/watch?v=nZcRU0Op5P4
if i am publishing to /path1/path2
and i am listening to path /path1/path2
am i actually listening to path1 or path2?
Spoiler alert: You are listening to path2 which is a folder and not node you think you created
Solution is If producer produces on specified path
QUESTION
I have a Kubernetes problem where I need to copy 2 jars (each jar > 1Mb) into a pod after it is deployed. So ideally the solution is we cannot use configMap (> 1Mb) but we need to use "wget" in "initcontainer" and download the jars. so below is my kubernetes-template configuration which i have modified. The original one is available at https://github.com/dremio/dremio-cloud-tools/blob/master/charts/dremio/templates/dremio-executor.yaml
...ANSWER
Answered 2021-Apr-30 at 07:09Your approch seems right. Another solution could be to include the jar on the Docker image but I think it's not possible right ?
You could just use an emptyDir instead of a VolumeClaim.
Last one, I would have download the jar before waiting for ZooKeeper to gain some time.
QUESTION
// Terraform v0.14.9
# var.tf
variable "launch_zk" {
type = string
description = "Whether to launch zookeeper or not"
default = false
}
# main.tf
resource "aws_instance" "zk_ec2" {
count = var.launch_zk ? var.zk_instance_count : 0
...
}
# output.tf
output "zk_ips" {
description = "IPs of ZK instances"
value = {
for vm in aws_instance.zk_ec2 :
vm.tags.Name => vm.private_ip
}
}
resource "local_file" "AnsibleInventoryFile" {
content = templatefile("ansible_inventory.tpl",
{
zk-private-ip = var.zk_instance_count < 10 ? slice(aws_instance.zk_ec2.*.private_ip, 0, 3) : slice(aws_instance.zk_ec2.*.private_ip, 0, 5),
zk-private-dns = var.zk_instance_count < 10 ? slice(aws_instance.zk_ec2.*.private_dns, 0, 3) : slice(aws_instance.zk_ec2.*.private_dns, 0, 5),
}
)
filename = "ansible_inventory"
}
# ansible_inventory.tpl
[zk_servers]
%{ for index, dns in zk-private-dns ~}
${zk-private-ip[index]} server_name=${dns}
%{ endfor ~}
ANSWER
Answered 2021-Apr-22 at 05:38As docs explain, your condition must have consistent types:
The two result values may be of any type, but they must both be of the same type so that Terraform can determine what type the whole conditional expression will return without knowing the condition value.
In your case you return a list, and string:
QUESTION
Kafka Producer written in Spring boot with defined properties as
When I start the producer it is always trying to connect localhost:9092 rather than the configured remote node IP.
NOTE: I had already defined advertised.listeners in the server.properties of the remote node.
Also please PFB the remote node kafka broker server properties
...ANSWER
Answered 2021-Apr-20 at 13:50Advertised hostname+port are deprecated properties, you only need advertised.listeners
For listeners, it should be a socket bind address, such as 0.0.0.0:9094 for all connections on port 9094
When I start the producer it is always trying to connect localhost:9092
Probably because there's a space in your property file before the equals sign (in general, I'd suggest using a yaml config file instead of properties). You can also simply use spring.kafka.bootstrap-servers
QUESTION
I'm seeing some strange behavior. I wrote up some Flink processors using Flink 1.12, and tried to get them working on Amazon EMR. However Amazon EMR only supports Flink 1.11.2 at the moment. When I went to downgrade, I found, inexplicably, that watermarks were no longer propagating.
There is only one partition on the topic, and parallelism is set to 1. Is there something I'm missing here? I feel like I'm going a bit crazy.
Here's the output for Flink 1.12:
...ANSWER
Answered 2021-Apr-15 at 15:36Turns out that Flink 1.12 defaults the TimeCharacteristic to EventTime and deprecates the whole TimeCharacteristic flow. So to downgrade to Flink 1.11, you must add the following statement to configure the StreamExecutionEnvironment.
QUESTION
I'm unable to read gzip encoded response in a Symfony projet. Here is my service :
...ANSWER
Answered 2021-Apr-14 at 14:23See https://github.com/symfony/symfony/issues/34238#issuecomment-550206946 - remove Accept-Encoding: gzip from the array of headers if you want to receive a unzipped response, or unzip the response on your own
QUESTION
$ ls
Makefile html-page/ page-generator.m4
Run includes/
ANSWER
Answered 2021-Apr-12 at 21:13Just add call feedkeys("\") afterwards. There are not many places you need feedkeys() (often normal! or similar commands will do), and there are subtle effects (look at the flags it takes carefully). Fortunately this is one place it is useful.
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