IPv4 Address: 192.168.56.1 IPv4 Network Mask: 255.255.255.0 IPv6 Address: IPv6 Network Mask Length: 0. Prometheus is a time-series database that stores our metric data by pulling it (using a built-in data scraper) periodically over HTTP. The intervals between pulls can be configured, of course, and we have to provide the URL to pull from. It also has a simple user interface where we can visualize/query on all of the collected metrics.
Prometheus v2.12 added active query logging. Potato chipster sim mac os. Slimelands mac os. The basic idea is that there is a mmaped JSON file that contains all of the queries currently running. If prometheus was to crash, that file would therefore be a list of the queries running at the time of the crash. Overall, not a bad idea.
Some friends had recently added prometheus to their development environments. This is wired up to grafana dashboards for their microservices, and prometheus is configured to store 14 days worth of time series data via a persistent volume from the developer desktops. We did this because it is valuable for the developers to be able to see the history of metrics before and after their changes.
Now we have a developer using macos as their primary development platform, and since prometheus 2.12 it hasn't worked. Specifically this developer is using parallels to provide the docker virtual machine on his mac. You can summarise the startup for prometheus in the dev environment like this: Brian christopher net worth.
And here's the underlying problem — because of the way the persistent data is mapped into this container (via parallels sharing in this case), the mmap of the active queries file fails and prometheus fails to start. Play 3 card poker.
In other words, since prometheus 2.12 your prometheus data files have to be stored on a filesystem which supports mmap. Additionally, there is no flag to just disable the active query logger.
So how do we work around this? Well, here's a horrible workaround — in the data directory that is volume mapped into the container, create a symlink that is to a path that is mmapable inside the docker container, even if that path doesn't exist outside the container. For example, given that we store the prometheus time series at $CONFIG/prometheus-data:
Prometheus (nathandimmer) Mac Os Download
Note that /tmp/queries.active does not exist on the developer's mac. Money slot machine. Prometheus now starts and its puppies and kittens the whole way down.
hi there,
recently i started pushing metrics to prometheus but whenever i sent a sample query to prometheus to see the data points, i would get none.
There were no errors in prometheus and i was scratching my head …. grrr…
I was on Mac OS and using a Docker image of Prometheus (version=1.7.1)
When i went into the docker container and checked the dateTime, walaaaaaaaaaaaa
There was a Time mismatch between host and Docker container.
https://download-led.mystrikingly.com/blog/gamedev-the-beginning-mac-os. #___7_day__difference__ –> Possible docker bug !!!
since i was searching in the current timebucket, and the datapoints were going to time bucket 7 days ago, i was not able to find em.
Prometheus (nathandimmer) Mac Os Update
FIX:
Prometheus (nathandimmer) Mac Os X
Restarting docker for Mac fixed the issue.
