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nixpkgs/nixos/tests/hadoop/hbase.nix
2022-08-07 21:21:45 +02:00

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Nix

# Test a minimal hbase cluster
{ pkgs, ... }:
import ../make-test-python.nix ({ hadoop ? pkgs.hadoop, hbase ? pkgs.hbase, ... }:
with pkgs.lib;
{
name = "hadoop-hbase";
nodes = let
coreSite = {
"fs.defaultFS" = "hdfs://namenode:8020";
};
defOpts = {
enable = true;
openFirewall = true;
};
zookeeperQuorum = "zookeeper";
in {
zookeeper = { ... }: {
services.zookeeper.enable = true;
networking.firewall.allowedTCPPorts = [ 2181 ];
};
namenode = { ... }: {
services.hadoop = {
hdfs = {
namenode = defOpts // { formatOnInit = true; };
};
inherit coreSite;
};
};
datanode = { ... }: {
virtualisation.diskSize = 8192;
services.hadoop = {
hdfs.datanode = defOpts;
inherit coreSite;
};
};
master = { ... }:{
services.hadoop = {
inherit coreSite;
hbase = {
inherit zookeeperQuorum;
master = defOpts // { initHDFS = true; };
};
};
};
regionserver = { ... }:{
services.hadoop = {
inherit coreSite;
hbase = {
inherit zookeeperQuorum;
regionServer = defOpts;
};
};
};
};
testScript = ''
start_all()
# wait for HDFS cluster
namenode.wait_for_unit("hdfs-namenode")
namenode.wait_for_unit("network.target")
namenode.wait_for_open_port(8020)
namenode.wait_for_open_port(9870)
datanode.wait_for_unit("hdfs-datanode")
datanode.wait_for_unit("network.target")
datanode.wait_for_open_port(9864)
datanode.wait_for_open_port(9866)
datanode.wait_for_open_port(9867)
# wait for ZK
zookeeper.wait_for_unit("zookeeper")
zookeeper.wait_for_open_port(2181)
# wait for HBase to start up
master.wait_for_unit("hbase-master")
regionserver.wait_for_unit("hbase-regionserver")
assert "1 active master, 0 backup masters, 1 servers" in master.succeed("echo status | HADOOP_USER_NAME=hbase hbase shell -n")
regionserver.wait_until_succeeds("echo \"create 't1','f1'\" | HADOOP_USER_NAME=hbase hbase shell -n")
assert "NAME => 'f1'" in regionserver.succeed("echo \"describe 't1'\" | HADOOP_USER_NAME=hbase hbase shell -n")
'';
})