| -Xlog Usage: -Xlog[:[selections][:[output][:[decorators][:output-options]]]] | |
| where 'selections' are combinations of tags and levels of the form tag1[+tag2...][*][=level][,...] | |
| NOTE: Unless wildcard (*) is specified, only log messages tagged with exactly the tags specified will be matched. | |
| Available log levels: | |
| off, trace, debug, info, warning, error | |
| Available log decorators: | |
| time (t), utctime (utc), uptime (u), timemillis (tm), uptimemillis (um), timenanos (tn), uptimenanos (un), hostname (hn), pid (p), tid (ti), level (l), tags (tg) | |
| Decorators can also be specified as 'none' for no decoration. |
Loki stops ingesting logs from promtail. The error messages are a stream HTTP 499 errors
in the gateway component which is based on nginx. Ex:
10.194.148.169 - - [17/Feb/2022:21:08:28 +0000] 499 "POST /loki/api/v1/push HTTP/1.1" 0 "-" "promtail/" "-"
10.194.90.195 - - [17/Feb/2022:21:08:28 +0000] 499 "POST /loki/api/v1/push HTTP/1.1" 0 "-" "promtail/" "-"
| import java.util.*; | |
| /** | |
| * A demo Java application to see how GC works. | |
| * | |
| * @author Thanh Nguyen | |
| */ | |
| public class GcMemDemo { | |
| static Map<Long, byte[]> buffer = new HashMap<>(); |
| #Nexus Raw Artifact upload using cURL | |
| curl --fail -u user:password --upload-file file.zip 'https:/nexus-repository.claudiosteuernagel.com/repository/my-raw-repo/my-directory/file.zip' |
| #!/bin/bash | |
| # debug: print all vars and function | |
| env | |
| set | |
| # debug: print all commands during execution | |
| set -x | |
| TUNNEL_NAME="${PLUTO_CONNECTION}" |
| # Example YAML configuration for the adapter pattern. | |
| # It defines a main application container which writes | |
| # the current date and system usage information to a log file | |
| # every five seconds. | |
| # The adapter container reads what the application has written and | |
| # reformats it into a structure that a hypothetical monitoring | |
| # service requires. |
| # import config. | |
| # You can change the default config with `make cnf="config_special.env" build` | |
| cnf ?= config.env | |
| include $(cnf) | |
| export $(shell sed 's/=.*//' $(cnf)) | |
| # import deploy config | |
| # You can change the default deploy config with `make cnf="deploy_special.env" release` | |
| dpl ?= deploy.env | |
| include $(dpl) |
| Emulating wide area network delays | |
| This is the simplest example, it just adds a fixed amount of delay to all packets going out of the local Ethernet. | |
| # tc qdisc add dev eth0 root netem delay 100ms | |
| Now a simple ping test to host on the local network should show an increase of 100 milliseconds. The delay is limited by the clock resolution of the kernel (Hz). On most 2.4 systems, the system clock runs at 100 Hz which allows delays in increments of 10 ms. On 2.6, the value is a configuration parameter from 1000 to 100 Hz. | |
| Later examples just change parameters without reloading the qdisc | |
| Real wide area networks show variability so it is possible to add random variation. |
| #!/usr/bin/env bash | |
| # Names of latest versions of each package | |
| export VERSION_PCRE=pcre-8.39 | |
| export VERSION_ZLIB=zlib-1.2.8 | |
| export VERSION_LIBRESSL=libressl-2.4.2 | |
| export VERSION_NGINX=nginx-1.11.3 | |
| # URLs to the source directories | |
| export SOURCE_LIBRESSL=http://ftp.openbsd.org/pub/OpenBSD/LibreSSL/ |
| ssh-keygen -t rsa -b 4096 -m PEM -f jwtRS256.key | |
| # Don't add passphrase | |
| openssl rsa -in jwtRS256.key -pubout -outform PEM -out jwtRS256.key.pub | |
| cat jwtRS256.key | |
| cat jwtRS256.key.pub |
