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6889f83a00
The example starts a simple five-node cluster with otherwise default setting (in particular, 3x replication).
48 lines
1.5 KiB
Bash
Executable File
48 lines
1.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2016 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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set -euo pipefail
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function sql() {
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# TODO(knz): Why does the more idiomatic read from stdin not produce any
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# output?
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kubectl exec "cockroachdb-${1}" -- /cockroach/cockroach sql \
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--host "cockroachdb-${1}.cockroachdb" \
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-e "$(cat /dev/stdin)"
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}
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function kill() {
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! kubectl exec -t "cockroachdb-${1}" -- /bin/bash -c "while true; do kill 1; done" &> /dev/null
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}
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# Create database on second node (idempotently for convenience).
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cat <<EOF | sql 1
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CREATE DATABASE IF NOT EXISTS foo;
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CREATE TABLE IF NOT EXISTS foo.bar (k STRING PRIMARY KEY, v STRING);
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UPSERT INTO foo.bar VALUES ('Kuber', 'netes'), ('Cockroach', 'DB');
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EOF
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# Kill the node we just created the table on.
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kill 1
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# Read the data from all other nodes (we could also read from the one we just
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# killed, but it's awkward to wait for it to respawn).
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for i in 0 2 3 4; do
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cat <<EOF | sql "${i}"
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SELECT CONCAT(k, v) FROM foo.bar;
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EOF
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done
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