84 lines
2.5 KiB
Nix
84 lines
2.5 KiB
Nix
# Test a minimal HDFS cluster with no HA
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import ../make-test-python.nix ({ package, lib, ... }:
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with lib;
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{
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name = "hadoop-hdfs";
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nodes = let
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coreSite = {
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"fs.defaultFS" = "hdfs://namenode:8020";
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"hadoop.proxyuser.httpfs.groups" = "*";
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"hadoop.proxyuser.httpfs.hosts" = "*";
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};
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in {
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namenode = { pkgs, ... }: {
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services.hadoop = {
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inherit package;
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hdfs = {
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namenode = {
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enable = true;
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openFirewall = true;
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formatOnInit = true;
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};
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httpfs = {
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# The NixOS hadoop module only support webHDFS on 3.3 and newer
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enable = mkIf (versionAtLeast package.version "3.3") true;
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openFirewall = true;
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};
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};
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inherit coreSite;
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};
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};
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datanode = { pkgs, ... }: {
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services.hadoop = {
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inherit package;
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hdfs.datanode = {
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enable = true;
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openFirewall = true;
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dataDirs = [{
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type = "DISK";
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path = "/tmp/dn1";
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}];
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};
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inherit coreSite;
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};
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};
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};
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testScript = ''
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start_all()
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namenode.wait_for_unit("hdfs-namenode")
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namenode.wait_for_unit("network.target")
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namenode.wait_for_open_port(8020)
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namenode.succeed("ss -tulpne | systemd-cat")
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namenode.succeed("cat /etc/hadoop*/hdfs-site.xml | systemd-cat")
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namenode.wait_for_open_port(9870)
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datanode.wait_for_unit("hdfs-datanode")
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datanode.wait_for_unit("network.target")
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'' + ( if versionAtLeast package.version "3" then ''
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datanode.wait_for_open_port(9864)
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datanode.wait_for_open_port(9866)
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datanode.wait_for_open_port(9867)
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datanode.succeed("curl -f http://datanode:9864")
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'' else ''
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datanode.wait_for_open_port(50075)
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datanode.wait_for_open_port(50010)
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datanode.wait_for_open_port(50020)
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datanode.succeed("curl -f http://datanode:50075")
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'' ) + ''
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namenode.succeed("curl -f http://namenode:9870")
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datanode.succeed("sudo -u hdfs hdfs dfsadmin -safemode wait")
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datanode.succeed("echo testfilecontents | sudo -u hdfs hdfs dfs -put - /testfile")
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assert "testfilecontents" in datanode.succeed("sudo -u hdfs hdfs dfs -cat /testfile")
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'' + optionalString ( versionAtLeast package.version "3.3" ) ''
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namenode.wait_for_unit("hdfs-httpfs")
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namenode.wait_for_open_port(14000)
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assert "testfilecontents" in datanode.succeed("curl -f \"http://namenode:14000/webhdfs/v1/testfile?user.name=hdfs&op=OPEN\" 2>&1")
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'';
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})
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