During the screening process, down time high

Dr.Ko · January 13, 2024, 2:47pm

I think the screening is over, but a downtime warning appears. There was a person who asked the same question in the same situation, and I wonder if there is a penalty for this part

1705156739245

I don’t know what kind of test it is, but I’ll also upload a screenshot of the test with the PowerShell. I don’t know what it means…

https://forum.storj.io/t/eu1-warning-downtime-high/16470/4?u=dr.ko

Alexey · January 14, 2024, 8:19am

To fully recover the online score your node should be online for 30 days after a downtime. Each downtime requires additional 30 days online to recover.

See

Dr.Ko · January 14, 2024, 9:05am

Then, should I understand that the audit period has increased? (I understand that the speed of data inflow is decreasing during the audit period)
Thank you for always responding.

Alexey · January 14, 2024, 9:26am

There is no thing like “audit period”, the online score is calculated for the 30 days windows, as explained in the article.
Audit score - is a separate metric, it’s accounted for passed/failed audits with a more complex formula, see

And

github.com

storj/design-docs/blob/42380a92f3573480d79753e37e14697a73b13b82/20190909-reputation-and-node-selection.md?plain=1

tags: []
---

# Reputation and Node Selection

## Abstract

Node selection is the process wherein the set of all possible storage nodes is reduced by the satellite for uploading segments.  Node selection applies to new file uploads via an uplink, as well as repair traffic from a satellite.  The node selection processes endeavors to fairly distribute upload traffic among storage nodes.  Node selection takes into consideration how new a node is, the overall performance characteristic of a storage node as characterized by its reputation score, and the IP address of each node.

## Background

The white paper section 4.15 describes a 'preferences' system used in node selection, based on reputation:

> After disqualified storage nodes have been filtered out, remaining statistics collected during audits will be used to establish a preference for better storage nodes during uploads. These statistics include performance characteristics such as throughput and latency, history of reliability and uptime, geographic location, and other desirable qualities. They will be combined into a load-balancing selection process, such that all uploads are sent to qualified nodes, with a higher likelihood of uploads to preferred nodes, but with a non-zero chance for any qualified node.  Initially, we’ll be load balancing with these preferences via a randomized scheme, such as the Power of Two Choices, which selects two options entirely at random and then chooses the more qualified between those two.
>
> On the Storj network, preferential storage node reputation is only used to select where new data will be stored, both during repair and during the upload of new files, unlike disqualifying events.  If a storage node’s preferential reputation decreases, its file pieces will not be moved or repaired to other nodes.

The existing reputation-like system uses uptime and audit responses.  It does not currently consider geographic location, throughput, or latency.  In addition to factors which affect reputation, there are other factors in node selection.  These considerations currently include IP address, advertised available bandwidth, advertised available disk space, software version compatibility, and whether the node appeared to be online in the latest communication with the satellite.

One final factor involved in node selection is node 'vetting.'  During upload

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It’s not. If the online score is below 60% (0.6), the node will be suspended - no ingress anymore until the online score would be greater or equal 60%

Dr.Ko · January 14, 2024, 9:38am

I got it wrong. My knowledge went up