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Question Veerraju Grandhi · Jun 13, 2024

Python interaction with Config.config class not returning gmheap size

#InterSystems IRIS #InterSystems IRIS for Health #Key Question

I am trying to extract GMHeap, Locksiz values form Config.config using python (imported irisnative for Python) but the below python progam is not returning any value. Please suggest if i am doing any mistake - 

Also, plese suggest how i can set values for GMHeap and Locksiz to a different value through Python.

import irisnative

hostname = "127.0.0.1"
port = 1972
namespace = "%SYS" #change the namespace based on situation
username = "_SYSTEM"
password = "xxxxxxxx"
connection = irisnative.createConnection(hostname, port, namespace, username, password)
dbnative = irisnative.createIris(connection)

gmheap_size=dbnative.classMethodValue("Config.config", "gmheap")
print(gmheap_size)

connection.close()

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Comments

Jon Willeke · Jun 13, 2024

You're trying to call gmheap as a class method, but it's a property. Here's one way to do it:

cfg = native.classMethodValue('Config.config', 'Open')
cfg.get('gmheap')

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Veerraju Grandhi  Jun 14, 2024 to Jon Willeke

Hi,

I tried updating the python script like below -

import irisnative

hostname = "127.0.0.1"
port = 1972
namespace = "%SYS" #change the namespace based on situation
username = "_SYSTEM"
password = "xxxxxxxx"
connection = irisnative.createConnection(hostname, port, namespace, username, password)
dbnative = irisnative.createIris(connection)

cfg=dbnative.classMethodValue('Config.config', 'Open')
print(cfg.get('gmheap'))

connection.close()

and i am getting the below error when i attempting to run python -

    print(cfg.get('gmheap'))
AttributeError: 'str' object has no attribute 'get'

i tried methog gmheapGet() for the property gmheap but i am not getting any output. This Config.config is persistent class and SQL table. is that is the reason 'classmethovalue' not working? the same code worked for getting %system.config.sharedmemoryheap.recommendedsize. 

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Jon Willeke  Jun 14, 2024 to Veerraju Grandhi

What version of IRIS are you using, and what version of the Native API wheel? This works for me in 2024.1.0 using both 3.2.0 and 4.2.0.

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Veerraju Grandhi  Jun 16, 2024 to Jon Willeke

Hi Jon, I am using IRIS Version as below -

IRIS for Windows (x86-64) 2023.1.2 (Build 450_0_23065U) Thu Dec 28 2023 14:31:25 EST [Health:5.1.0-1.m1] 

and Native driver - i have downloaded the whl file "irisnative-1.0.0-cp34.cp35.cp36.cp37.cp38.cp39-none-win_amd64.whl"

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Jon Willeke  Jun 20, 2024 to Veerraju Grandhi

1.0.0 is very old. 2023.1.2 shipped with the 3.2.0 and 4.1.0 wheels in the dev/python directory. You're going to be happier using one of them, which support the answer I gave originally. A big difference between the two is that 3.2.0 is pure Python, whereas 4.1.0 includes platform-specific binaries like 1.0.0 did.

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Veerraju Grandhi  Jun 20, 2024 to Jon Willeke

Hi Jon,

Can you please share the link for the updated wheel file please

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Enrico Parisi  Jun 21, 2024 to Veerraju Grandhi

As @Jon Willeke wrote in his post:

2023.1.2 shipped with the 3.2.0 and 4.1.0 wheels in the dev/python directory

It's in the dev/python directory of your IRIS installation. It's in your system.

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Veerraju Grandhi  Jun 23, 2024 to Enrico Parisi

I have downloaded this below wheel from GitHub. IF this not the latest wheel, please can you share new link please -

"irisnative-1.0.0-cp34.cp35.cp36.cp37.cp38.cp39-none-win_amd64.whl"

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