bookkeeper | Apache BookKeeper - a scalable , fault tolerant
kandi X-RAY | bookkeeper Summary
kandi X-RAY | bookkeeper Summary
Apache BookKeeper is a scalable, fault tolerant and low latency storage service optimized for append-only workloads.
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Top functions reviewed by kandi - BETA
- Recovers a ledger .
- Reorder the reads in a read sequence with a region .
- Completes the given bookie .
- Do complete and close the log segment with the given ID .
- Computes and returns a new cluster assignment .
- Schedule a periodic placement policy check .
- Run the benchmark tasks .
- Starts listening socket .
- Removes all the overReplicated ledgers from the bookieStore .
- Creates and returns the add response .
bookkeeper Key Features
bookkeeper Examples and Code Snippets
public static BookKeeper createBkClient(String zkConnectionString) {
try {
return new BookKeeper(zkConnectionString);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
npm install --save-dev http-server
npm install --save http-server
"scripts": {
...
"sw-build": "ng build --prod && node build/fix-sw",
"sw-build-live": ng build --prod --base-href https://your-url.com/ && node build/fix-sw"
...
}
npm run sw-buil
apiVersion: apps/v1
kind: Deployment
metadata:
name: your-login-deployment-name
spec:
selector:
matchLabels:
app: smart-grocer-nodejs-login
replicas: number-of-replicas
template:
metadata:
labels:
app: s
"start": "npx http-server .out -p ${PORT:-0}",
npm install -g http-server
http-server -p [PORT]
http-server -p 8080
FROM mwi_node10_20190321
USER root
RUN useradd -u 5000 node
RUN mkdir -p /home/node/app/node_modules && chown -R node:node /home/node/app
RUN chmod 755 /opt/mdw/node-v10.15.3-linux-x64/
WORKDIR /home/node/app
RUN npm install --glo
npm i -g http-server
ng build --prod
http-server
"scripts": {
...
"sw-build": "ng build --prod && node build/fix-sw",
"sw-build-live": ng build --prod --base-href https://your-url.com/ && node build/fix-sw"
...
}
npm run sw-build cd dist htt
Community Discussions
Trending Discussions on bookkeeper
QUESTION
I am on Ubuntu 20.04 and struggling with making iconify()
and deiconify()
work for a popup window. Currently the popup window will not deiconify()
after having been iconified. Here is a minimal example:
ANSWER
Answered 2021-Mar-01 at 11:34The grab_set
method routes all the events of the application to the specified widget.
Since you have called self.grab_set()
on the popup window, the main window will refuse to take any event (the button is never clicked to begin with) and so the program doesn't work.
Removing that would make it work.
QUESTION
I have to make a university project and to do that I have to clone Bookkeeper from github to create some test cases. My problem is that when I import the project with maven it shows me the error:
...ANSWER
Answered 2020-Dec-11 at 18:33Why you are using snapshot version of the library? Snapshot versions should not be used (and are not intended as released version by any project). Please use below dependency instead of snapshot.
QUESTION
What is the cost of creating multiple subscriptions on a topic? Does creating more subscriptions affect the broker, Bookkeeper or both?
I'm assuming it only adds work load to the broker but the work increased by adding another subscription is minimal since it would only have to duplicate the messages?
...ANSWER
Answered 2020-Oct-30 at 13:24In Pulsar, a topic (or a partition) is owned by a single Broker meaning that all reads and writes go through that broker. Brokers cache bookies entries in memory so that it can dispatch messages directly to all consumers. This will avoid a network round-trip and a possible disk read on bookies.
In addition, you should note that a broker must send data over the network for each subscription. This can lead to network saturation if you have a very high throughput.
Moreover Bookies also have a write/reach cache to reduce disk access.
QUESTION
I am currently working on integrating Sumo Logic in a AWS EKS cluster. After going through Sumo Logic's documentation on their integration with k8s I have arrived at the following section Installation Steps. This section of the documentation is a fork in the road where one must figure out if you want to continue with the installation :
- side by side with your existing Prometheus Operator
- and update your existing Prometheus Operator
- with your standalone Prometheus (not using Prometheus Operator)
- with no pre-existing Prometheus installation
With that said I am trying to figure out which scenario I am in as I am unsure. Let me explain, previous to working on this Sumo Logic integration I have completed the New Relic integration which makes me wonder if it uses Prometheus in any ways that could interfere with the Sumo Logic integration ?
So in order to figure that out I started by executing:
...ANSWER
Answered 2020-Sep-25 at 23:08I think you most likely will have to go with the below installation option :
- with your standalone Prometheus (not using Prometheus Operator)
Can you check and paste the output of kubectl get prometheus
. If you see any running prometheus, you can run kubectl describe prometheus $prometheus_resource_name
and check the labels to verify if it is deployed by the operator or it is a standalone prometheus.
In case it is deployed by Prometheus operator, you can use either of these approaches:
- side by side with your existing Prometheus Operator
- update your existing Prometheus Operator
QUESTION
For a university exam i was given to test some of apache bookkeeper classes/methods and in doing so i thought to use mockito in my parameterized test. Test without mockito works fine but when i try to mock an interface i get this error:
...ANSWER
Answered 2020-Aug-28 at 20:17Looking at this bug report, you might have a version incompatibility problem with ByteBuddy and Mockito.
Try to either downgrade Mockito to version 2.23 or upgrade ByteBuddy to version 1.97.
QUESTION
This is my first attempt to deploy Pulsar on AKS v1.15.11.
I'm getting a not very verbose error messages from 2 pods that are "unscheduled" :
Firtst pod unscheduled "pulsar-zookeeper-0"
[Pod] [pulsar-zookeeper-0] FailedScheduling: selectedNode annotation value "" not set to scheduled node "aks-agentpool-20916223-vmss000001"
Second Pod unscheduled "pulsar-bookkeeper-0"
[Pod] [pulsar-bookkeeper-0] FailedScheduling: selectedNode annotation value "" not set to scheduled node "aks-pulsar-20916223-vmss000001"
Here's a detailed procedure of what I did. I've used official helm-charts for deployments
...ANSWER
Answered 2020-Jun-26 at 02:02AKS already comes with Storage Classes
you shouldn't need to tell your Chart to create a Storage Class using
QUESTION
I'm trying to find all the words with three consecutive double letters, e.g., bookkeeper.
Currently its giving me any word with double letters, rather than three consecutive sets.
This is where I am at:
...ANSWER
Answered 2020-May-19 at 19:09Using regular expression could possibly help you out:
QUESTION
In a multi-module maven project, I want to print the thread-dump and fail the test when a test timeout is reached. So to achieve this I have used a combination of TimedoutTestsListener and surefire listener property.
I am using Jenkins so fail-on-end
is set to true so that all non-impacted tests continue to run as mentioned here.
So, is it possible to fail the build immediately only when timeout is reached and in other failure cases fail in the end?
- JUnit - 4.12
- Maven - 3.5
- Surefire - 2.22.2
- Jave - 8
ANSWER
Answered 2020-Apr-19 at 17:45This has been answered in the maven email group
to fail the build immediately when timeout is reached
This feature exists for years: http://maven.apache.org/surefire/maven-surefire-plugin/test-mojo.html#forkedProcessTimeoutInSeconds http://maven.apache.org/surefire/maven-failsafe-plugin/integration-test-mojo.html#forkedProcessTimeoutInSeconds
to fail the ... when someone presses abort button on the jenkins
This also exists with several alternatives (changed across the versions). See the detailed page http://maven.apache.org/surefire/maven-failsafe-plugin/examples/shutdown.html
If your Jenkins sends the SIGTERM signal into the Maven process (same as CTRL+C) then the standard input stream in process pipe becomes closed and the EOFException is caugh byt the forked JVM and shutdown is called: http://maven.apache.org/surefire/maven-surefire-plugin/test-mojo.html#shutdown maven.apache.org/surefire/maven-failsafe-plugin/integration-test-mojo.html#shutdown If you want to kill the JVM, you can reconfigure the default behavior.
If your Jenkins sends SIGTERM to the Maven process then enable the process checker, see more details in the documentaion: http://maven.apache.org/surefire/maven-surefire-plugin/test-mojo.html#enableProcessChecker http://maven.apache.org/surefire/maven-failsafe-plugin/integration-test-mojo.html#enableProcessChecker
Did it help?
Here is the FAQ: http://maven.apache.org/surefire/maven-failsafe-plugin/faq.html
Feel free to ask any questions if you have a problem with this topic.
If you are using surefire 3.0.0-M4 then thread-dump can be found in target/surefire-reports
as explained here.
QUESTION
I have made an earlier post with similar code, and have updated the models to use a helper class instead of a ViewBag. It seemed to work like a charm until the database was updated.
These are my model classes.
...ANSWER
Answered 2020-Feb-28 at 17:42I assume that you don't see any value for the purchase.Store, that's because the model binder only bind the StoreId (when request is sent from Browser to Web Server) which you specified in
QUESTION
I add 2 bookie to pulsar a month ago, but I realized it was a waste of resources. how could i shrink the bookies from 7 to 3.
my effortthrough bookkeeper's document, i find autorecover will bring all ledgers in BookKeeper cluster back to full replication while a bookie is crashed. but if i close four bookes in one time, i think some ledger may Lost forever.
...ANSWER
Answered 2019-Sep-16 at 15:17You can use the command
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Install bookkeeper
Concepts: Start with the basic concepts of Apache BookKeeper. This will help you to fully understand the other parts of the documentation.
Follow the Install guide to setup BookKeeper.
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