Memo

A place where I store all my useful cmd.

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Pulsar

create msgs :

bin/pulsar-client produce -m "Hello World !" persistent://my-tenant/my-namespace/my-topic

consume msgs :

bin/pulsar-client consume -n 0 -s debug-subscription persistent://my-tenant/my-namespace/my-topic

Cockroach

Start mononode server (dev only)

podman run \
  -d \
  --name=roach1 \
  --hostname=roach1 \
  -p 26257:26257 \
  -p 8080:8080 \
  -v "roach1:$HOME/cockroach-dev-volume" \
  cockroachdb/cockroach:v22.1.10 start --insecure --join roach1

once exec in the container:

./cockroach init --insecure

JQ

jq '.[] | select( .key == "value")'