HN user

rodionos

1,453 karma

I work for Axibase. All comments are mine.

Posts122
Comments404
View on HN
patentscope.wipo.int 6y ago

Microsoft Patent WO 2020 060606

rodionos
3pts0
axibase.com 7y ago

Foreign U.S. Treasury Holders: France, Italy and EoY Statistics

rodionos
1pts0
apps.axibase.com 7y ago

Major Foreign Holders Reducing U.S. Treasury Holdings

rodionos
1pts1
www.npr.org 7y ago

Russia Tests 27-Mach Hypersonic Nuclear Glider

rodionos
11pts9
axibase.com 7y ago

SQL vs. Excel: Cell Reference Syntax

rodionos
3pts0
www.barrons.com 7y ago

IBM's Debt and Deal Make Stock a Big Loser Again

rodionos
1pts0
www.vldb.org 7y ago

Froid: Optimization of Imperative Programs in a Relational Database [pdf]

rodionos
64pts12
axibase.com 7y ago

Excel – Going Strong in 2018

rodionos
3pts0
axibase.com 7y ago

U.S. Foreign Treasury Holdings Series Filter

rodionos
1pts0
axibase.com 7y ago

Oroville Dam Reservoir Baselines

rodionos
1pts0
axibase.com 7y ago

US Expatriations Are Back to Pre-Election Levels

rodionos
1pts0
www.bloomberg.com 8y ago

Goldman Sachs model to predict World Cup game results didn’t come close

rodionos
245pts130
news.ycombinator.com 8y ago

Ask HN: Should ICANN be allowed to run example.com

rodionos
2pts0
axibase.com 8y ago

Time Series Datasets on data.gov

rodionos
4pts0
developers.google.com 8y ago

Google Developer Documentation Style Guide

rodionos
36pts7
github.com 8y ago

Hetzner Power Outage in Charts, May 2018

rodionos
1pts0
github.com 8y ago

U.S. Federal Budget Flirts with Surplus Using Special Items

rodionos
1pts0
github.com 8y ago

First Quarter U.S. Expatriations Down 12%

rodionos
2pts0
www.hetzner-status.de 8y ago

Hetzner Intrastructure at Falkenstein Is Down

rodionos
3pts0
apps.axibase.com 8y ago

DuckDuckGo broke through 20M searches last quarter

rodionos
3pts0
apps.axibase.com 8y ago

California Dams: Daily Status

rodionos
1pts0
apps.axibase.com 8y ago

California Water Reservoir Summary built with declarative graphics

rodionos
1pts0
github.com 8y ago

Storage Efficiency for Time Series Data: Relational vs. TSDB

rodionos
1pts0
github.com 8y ago

Axibase Time Series Database: Compression Tests

rodionos
3pts0
github.com 8y ago

Getting Started with Linux Container Monitoring

rodionos
3pts0
axibase.com 8y ago

Getting Started with Linux Container Monitoring

rodionos
4pts0
www.thestreet.com 8y ago

Hewlett Packard Slashing 5000 Employees

rodionos
2pts0
github.com 8y ago

Axibase Time Series Database: AWS S3 vs. HDFS

rodionos
1pts0
apps.axibase.com 8y ago

The first known time chart: 10th century

rodionos
11pts2
axibase.com 8y ago

Axibase Time Series Database: Integration with Docker

rodionos
2pts0

Once the Fed funds rate gets closer to 5%, you'll see more pushback from politicians and media. What does the Fed do in this situation if it needs to keep tightening? It may choose to switch to smaller rate changes, or even go flat, and at the same time embark on Treasury sales, or at least, rebalancing along the curve. So either way, not a good time to be in bonds.

For an alternative approach, if you treat this function as a time series where x is time, you can get a reasonably good approximation by performing SVD of the trajectory matrix and building the forecast from the principal components (eigen vectors) using a recurrent formula.

Here's an example:

https://apps.axibase.com/chartlab/9922f98f

* Chart 1. Function value for x in [0, 1).

* Chart 2. Function value for x in [0, 2).

* Chart 3. Function value for x in [0, 1) and extrapolated values for x in [1, 2).

We removed all tracking scripts from the front-end framework we use (vuepress) and are only checking nginx logs with geoip and org extensions enabled. This is more than enough for us as we're in the non-consumer software business with a relatively low volume of page views by human visitors. We see the org, the country, the city, and the page flow. Good enough.

Not having a nose is ok compared to having a half of the head attached from another sculpture. This was the case in imperial Rome when the sculptors had to quickly retrofit works in progress to fit the new emperor. In some periods you had three emperors succeed each other, most certainly involuntarily, within a period of three years.

We use Travis CI for checks as well as github and travis webhooks to deliver warnings to specific committers who need to fix the errors in a particular PR. Scheduled Travis CI checks send alerts to the general channel if the master branch starts failing.

Our docs are on github. We enabled Travis CI checks and all commits are now automatically validated with the default and custom markdownlint rules. If the linter finds errors, the committer receives a warning to Rocket chat with a link to Travis CI status page containing errors as well as suggestions on how to fix them.

We adopted a set of formal guidelines [0] for our database docs, based on Google Developer Guide [1], and automated the checks as much as possible with linters [2].

The checks cover spelling, markdown formatting, broken links, and grammar/style. For instance, we specifically reject hostnames, domain names, IP addresses, person names, phone numbers unless it's on our Example List[3], which itself is largely based on RFCs.

[0] https://axibase.com/use-cases/tutorials/workshop/technical-w...

[1] https://developers.google.com/style/

[2] https://github.com/axibase/docs-util

[3] https://axibase.com/use-cases/tutorials/workshop/technical-w...

which served the website using a fake certificate

This would cause an untrusted certificate error in browsers.

failed to obtain an SSL certificate while man-in-the-middle attacking

The sentence doesn't make sense. MITM is by definition an attack where an actor was able to impersonate the target. In this case, they presented an certificate that was not signed by a CA in the root CA file on the clients. So this can be qualified as a failed MITM attempt.

Some interesting notes in the summary: 1) wolves are one of beneficiaries of political instability (see the section on Balkan states). 2) in case of need, rescue from the Russian population is possible (section 7).

batch jobs run on a schedule or a trigger and are integrated with data quality monitoring tools to quickly detect regressions in the pipeline–either due to local or upstream code or data issues

I'm curious what tooling they're using to ensure data quality, in particular time series data.