Comments (7)
from streamz.
I create a few nodes which map some function onto the data. Then I'd like to write 5 pipelines which use these nodes in different positions in the execution. Currently I'd need to duplicate the code for those nodes 5 times, since their upstream nodes would be different and that is bound at instantiation. With nodes created without a graph I could just import the nodes into the 5 pipelines and just plumb them together.
from streamz.
from streamz.
Maybe. That would only happen if I was running all the pipelines at once. One could run a deep copy on the node to make copies?
from streamz.
Is it costly to make a new node each time as is currently done? What are the advantages of pre-instantiating these objects ahead of time rather than creating them on the fly? So far in my toy examples I've only run into cases where recreating every time was free.
from streamz.
how does this differ from connect
?
(#45)
from streamz.
Connect may have solved this issue, we just need to have a unique source for every incoming node to connect to.
from streamz.
Related Issues (20)
- How to store information from PeriodicDataFrame HOT 1
- How to load initial state or backfill the stream dataframe HOT 2
- missing positional argument: 'topic' in to_mqtt HOT 5
- How to parametrize stream/pipeline creation? HOT 2
- Passing Username and Password to from_mqtt() HOT 4
- Dynamically add upstreams to zip HOT 2
- Dropping `pkg_resources`
- AttributeError: 'Output' object has no attribute '_ipython_display_' HOT 3
- flatten doesn't work with iterables without defined length HOT 2
- visualizing streams and changing variables during runtime HOT 5
- Is it possible to use event time/syntethic time rather than system time? HOT 2
- Time based lookback window? HOT 1
- Streamz not working in Jupyterlite
- Collect does not allow awaitable sinks
- Quickstart lacks conda/environments/streamz_dev.yml HOT 6
- Hello from LorryStream and Kotori / Streamz is cool HOT 1
- Add pytest fixture to clean up the IO loop HOT 4
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- streamz's typing system can't work properly in vscode HOT 1
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from streamz.