restricted_registry() error

import prometheus_client

def queue_current_depth():
    ibm_queue_depth_total = prometheus_client.Gauge(
                                 'ibm_queue_depth_total', 
                                 'Current queue depth', 
                                 ['inst']
    )
    METRICS = ['ibm_queue_depth_total']
    REGISTRY = prometheus_client.REGISTRY

    # fill the metrics
    queues = get_queues()
    for queue_name in queues:
        current_depth  = get_queue_depth(queue_name ) #returns int
        ibm_queue_depth_total.labels(inst=queue_name).set(current_depth)

    rr = REGISTRY.restricted_registry(METRICS)

File “D:\Projects\uwsgi-flask\ibm_mq_methods\queue_info.py”, line 93, in queue_current_depth rr = REGISTRY.restricted_registry(METRICS) File “D:\Python\lib\site-packages\prometheus_client\registry.py”, line 96, in restricted_registry for metric in collector.collect(): File “D:\Python\lib\site-packages\prometheus_client\metrics.py”, line 68, in collect for suffix, labels, value in self._samples(): File “D:\Python\lib\site-packages\prometheus_client\metrics.py”, line 182, in _multi_samples for suffix, sample_labels, value in metric._samples(): File “D:\Python\lib\site-packages\prometheus_client\metrics.py”, line 175, in _samples return self._child_samples() File “D:\Python\lib\site-packages\prometheus_client\metrics.py”, line 375, in _child_samples return ((‘’, {}, self._value.get()),) AttributeError: ‘tuple’ object has no attribute ‘get’

Hi, guys! I get this error sometimes, honestly, i cant imagine why it’s happen. This script, actually, fill one metric with ~430 labels, and he can work without any kind of error for more then a week. But then, out of a clear sky, an error appears.

In normal conditions, _value object is always MutexValue class object, why it can turn into tuple, or why this tuple may appear?

Thanks for your time and help!

[fetidbell]

Since i start collect metrics via GaugeMetricFamily and custom registry (see example above) my script runs stable, no errors occure. I think, in that case, i can close the ticket. Brian, I really appreciate your help, thank you so much for what you doing!

[fetidbell]

Thanks for your suggest, here’s changes:

class QueueInfoCollector(object):
    def __init__(self):
        self.queue_depth_metric = self._add_metric('ibm_queue_depth', 
                'Current queue depth', ['inst'])

    @staticmethod
    def _add_metric(name, documentation, labels):
        g = GaugeMetricFamily(name, documentation, labels=labels)
        return g

    def collect(self):
        return [self.queue_depth_metric]

def queue_current_depth(logger):
    '''Function is check current depth of IBM MQ queues'''
    collector = QueueInfoCollector()
    ibm_queue_depth = collector.queue_depth_metric
    # rest of the code remains the same, except 
    # filling the metrics and getting output
    for queue in response:
        queue_name = queue[pymqi.CMQC.MQCA_Q_NAME].decode('utf-8').strip()
        current_depth = queue[pymqi.CMQC.MQIA_CURRENT_Q_DEPTH]
        ibm_queue_depth.add_metric([queue_name], current_depth)
    try:
        output = generate_latest(collector)
    except:
        raise
    return output

Hope these changes are similar to what you meant