kazoo | level Python library that makes it easier to use Apache | Authorization library
kandi X-RAY | kazoo Summary
kandi X-RAY | kazoo Summary
[Reviewed by Hound] kazoo implements a higher level API to [Apache Zookeeper] for Python clients. See [the full docs] for more information.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
- Allocate a transition
- Create a new child children watcher
- Abort the lock acquisition
- Start the async loop
- Try to acquire the node
- Ensure a path exists
- Adds a listener to the state
- Ensures that the given path exists
- Blocks until the file is deleted
- Wrapper for _get
- Inner loop
- Updates the given value
- Release the lock
- Connects to the configured hosts
- Attempts to acquire a lease
- Returns a list of contender nodes
- Leave the node
- Processes a result
- Creates a new keypair
- Start the worker
- Attempt to acquire the lock
- Close the task queue
- Start the barrier
- Start Zookeeper loop
- Deserialize from bytes
- Get the content of a node
kazoo Key Features
kazoo Examples and Code Snippets
`
.'.``
,...`
.'...` ``
;,@#. ;;'';:`
`,,#,` ;;,,,:;:.`
',,+. `';:: ;:':`
`::+,` ,;:,,; : ,,':.
+.+'.;;,:` ::` ,,,;,.`
fun = mod.functions.add('add', RCGTK::NativeIntType, [RCGTK::NativeIntType, RCGTK::NativeIntType])
bb = fun.blocks.append('entry')
builder = RCGTK::Builder.new
builder.position_at_end(bb)
# Generate an add instruction.
inst0 = builder.add(fun.par
import sys, StringIO
def funky() :
"1" + 1 # This should raise an error
sys.stderr = StringIO.StringIO()
funky() # this should call the funky function
import sys, StringIO
# import kazoo somehere around here
s
@contextmanager
def acquire_lock(self, path, identifier):
lock = zk.Lock(path, identifier)
try:
retry = KazooRetry()
retry(lock.acquire)
yield lock
finally:
lock.release()
with acquire_lock('/some_op/') as lock:
from kazoo.client import KazooClient
zk = KazooClient(hosts='127.0.0.1:2181')
zk.start()
# get all consumer groups
consumer_groups = zk.get_children("/consumers")
print("There are %s consumer group(s) with names %s" % (len(consumer_grou
>>> x.ideek
>>> x.ideek2
>
>>> x.ideek3
>
>>> x.noideek
>
>>> x.dsp_dict
{'Get_eek': }
>>> x._eek
>
Community Discussions
Trending Discussions on kazoo
QUESTION
I have a project that worked on ubuntu 16.04 with python 3.6 but now we are trying to make it run on ubuntu 20.04 with same python version. I need to install all requirements on the venv and apparently its only mysqlclient==1.3.12 that fails.
Went through lots of articles on stackoverflow but none of them seem to solve the problem.
Error for pip3 install mysqlclient==1.3.12
...ANSWER
Answered 2021-Oct-01 at 14:15You're using old mysqlclient
1.3.12 with new MySQL 8. Either you need to downgrade MySQL to version 5.6. Or you need to use later mysqlclient
.
The incompatibility was fixed in commit a2ebbd2
on Dec 21, 2017 so you need a later version of mysqlclient
.
mysqlclient
1.3.13 was released on Jun 27, 2018. Try it or any later version.
QUESTION
Who knows how to use the airflow to watch a zookeeper path, when zookeeper path data is ‘success’, Change the state of task to success;when zookeeper path data is ‘fail’, Change the state of task to fail; I write the following code,the ‘status_task’ task is used to get zookeeper status。 When I released the code to the airflow,but in the loop_func function , The code behind “while true” did not execute。 ‘status_task’ task status is always running。 Who knows why?
...ANSWER
Answered 2020-May-21 at 21:14Just a thought but have you considered making use of the HttpSensor? It will poll for a given response and mark the task as success once that response is returned, and then your follow up task trigger_task can start.
Here's an untested example, to hopefully help you.
You'll need to create a new connection(HTTP) either through the Airflow UI or by setting an environment variable like:
QUESTION
As a followup to @allan-cameron 's excellent answer in Most concise way to get a value from within a tibble
If I add some NA
to band-instruments
ANSWER
Answered 2020-May-10 at 16:59I couldn't figure out the reason. However, here is the solution .
QUESTION
I am looking for a readers-writer lock that can be used in python in a distributed system.
So far I've found:
- redlock, which is based on redis. Does not provide a readers-writer lock.
- The distributed package of dask offers a lock, but again, no readers-writer lock.
- kazoo, which works with Zookeeper, offers a readers-writer lock. However Zookeeper is an extremely heavy dependency, as it written in Java and therefore requires the JDK.
Is there a more lightweight alternative to kazoo / Zookeeper? Ideally a pure python solution that is nevertheless battle tested?
...ANSWER
Answered 2020-Apr-05 at 16:31Redis is single-threaded and read/write operations are atomic; which means multiple simultaneous read/write operations will not succeed and readers and writer(s) will be obtaining access to the resource sequentially in atomic fashion. I believe this would solve your problem if the resource is kept in as one of the redis data structures. You do not need a separate reader-writer lock mechanism when using redis and python as combination where the resource is kept within redis.
Hope it helps
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install kazoo
You can use kazoo like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page