nixos/hadoop: refactor HDFS configs
This commit is contained in:
illustris
parent
dd5f004b06
commit
f6cf1ced33
@ -1,47 +1,89 @@
|
||||
{ config, lib, pkgs, ...}:
|
||||
{ config, lib, pkgs, ... }:
|
||||
with lib;
|
||||
let
|
||||
cfg = config.services.hadoop;
|
||||
|
||||
# Config files for hadoop services
|
||||
hadoopConf = "${import ./conf.nix { inherit cfg pkgs lib; }}/";
|
||||
restartIfChanged = mkOption {
|
||||
type = types.bool;
|
||||
description = ''
|
||||
Automatically restart the service on config change.
|
||||
This can be set to false to defer restarts on clusters running critical applications.
|
||||
Please consider the security implications of inadvertently running an older version,
|
||||
and the possibility of unexpected behavior caused by inconsistent versions across a cluster when disabling this option.
|
||||
'';
|
||||
default = false;
|
||||
};
|
||||
openFirewall = serviceName: mkOption {
|
||||
type = types.bool;
|
||||
default = true;
|
||||
description = "Open firewall ports for ${serviceName}.";
|
||||
};
|
||||
|
||||
# Generator for HDFS service options
|
||||
hadoopServiceOption = { serviceName, firewallOption ? true }: {
|
||||
enable = mkEnableOption serviceName;
|
||||
inherit restartIfChanged;
|
||||
} // (if firewallOption then {openFirewall = openFirewall serviceName;} else {});
|
||||
restartIfChanged = mkOption {
|
||||
type = types.bool;
|
||||
description = ''
|
||||
Automatically restart the service on config change.
|
||||
This can be set to false to defer restarts on clusters running critical applications.
|
||||
Please consider the security implications of inadvertently running an older version,
|
||||
and the possibility of unexpected behavior caused by inconsistent versions across a cluster when disabling this option.
|
||||
'';
|
||||
default = false;
|
||||
};
|
||||
} // (optionalAttrs firewallOption {
|
||||
openFirewall = mkOption {
|
||||
type = types.bool;
|
||||
default = true;
|
||||
description = "Open firewall ports for ${serviceName}.";
|
||||
};
|
||||
});
|
||||
|
||||
# Generator for HDFS service configs
|
||||
hadoopServiceConfig =
|
||||
{ name
|
||||
, serviceOptions ? cfg.hdfs."${toLower name}"
|
||||
, description ? "Hadoop HDFS ${name}"
|
||||
, User ? "hdfs"
|
||||
, allowedTCPPorts ? [ ]
|
||||
, preStart ? ""
|
||||
, environment ? { }
|
||||
}: (
|
||||
|
||||
mkIf serviceOptions.enable {
|
||||
systemd.services."hdfs-${toLower name}" = {
|
||||
inherit description preStart environment;
|
||||
wantedBy = [ "multi-user.target" ];
|
||||
inherit (serviceOptions) restartIfChanged;
|
||||
serviceConfig = {
|
||||
inherit User;
|
||||
SyslogIdentifier = "hdfs-${toLower name}";
|
||||
ExecStart = "${cfg.package}/bin/hdfs --config ${hadoopConf} ${toLower name}";
|
||||
Restart = "always";
|
||||
};
|
||||
};
|
||||
|
||||
networking.firewall.allowedTCPPorts = mkIf
|
||||
((builtins.hasAttr "openFirewall" serviceOptions) && serviceOptions.openFirewall)
|
||||
allowedTCPPorts;
|
||||
}
|
||||
);
|
||||
|
||||
in
|
||||
{
|
||||
options.services.hadoop.hdfs = {
|
||||
|
||||
namenode = hadoopServiceOption { serviceName = "HDFS NameNode"; } // {
|
||||
formatOnInit = mkOption {
|
||||
type = types.bool;
|
||||
default = false;
|
||||
description = ''
|
||||
Format HDFS namenode on first start. This is useful for quickly spinning up ephemeral HDFS clusters with a single namenode.
|
||||
For HA clusters, initialization involves multiple steps across multiple nodes. Follow this guide to initialize an HA cluster manually:
|
||||
Format HDFS namenode on first start. This is useful for quickly spinning up
|
||||
ephemeral HDFS clusters with a single namenode.
|
||||
For HA clusters, initialization involves multiple steps across multiple nodes.
|
||||
Follow this guide to initialize an HA cluster manually:
|
||||
<link xlink:href="https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithQJM.html"/>
|
||||
'';
|
||||
};
|
||||
};
|
||||
|
||||
datanode = hadoopServiceOption { serviceName = "HDFS DataNode"; };
|
||||
|
||||
journalnode = hadoopServiceOption { serviceName = "HDFS JournalNode"; };
|
||||
|
||||
zkfc = hadoopServiceOption {
|
||||
serviceName = "HDFS ZooKeeper failover controller";
|
||||
firewallOption = false;
|
||||
};
|
||||
|
||||
httpfs = hadoopServiceOption { serviceName = "HDFS JournalNode"; } // {
|
||||
tempPath = mkOption {
|
||||
type = types.path;
|
||||
@ -49,118 +91,65 @@ in
|
||||
description = "HTTPFS_TEMP path used by HTTPFS";
|
||||
};
|
||||
};
|
||||
|
||||
};
|
||||
|
||||
config = mkMerge [
|
||||
(mkIf cfg.hdfs.namenode.enable {
|
||||
systemd.services.hdfs-namenode = {
|
||||
description = "Hadoop HDFS NameNode";
|
||||
wantedBy = [ "multi-user.target" ];
|
||||
inherit (cfg.hdfs.namenode) restartIfChanged;
|
||||
|
||||
preStart = (mkIf cfg.hdfs.namenode.formatOnInit ''
|
||||
${cfg.package}/bin/hdfs --config ${hadoopConf} namenode -format -nonInteractive || true
|
||||
'');
|
||||
|
||||
serviceConfig = {
|
||||
User = "hdfs";
|
||||
SyslogIdentifier = "hdfs-namenode";
|
||||
ExecStart = "${cfg.package}/bin/hdfs --config ${hadoopConf} namenode";
|
||||
Restart = "always";
|
||||
};
|
||||
};
|
||||
|
||||
networking.firewall.allowedTCPPorts = (mkIf cfg.hdfs.namenode.openFirewall [
|
||||
(hadoopServiceConfig {
|
||||
name = "NameNode";
|
||||
allowedTCPPorts = [
|
||||
9870 # namenode.http-address
|
||||
8020 # namenode.rpc-address
|
||||
8022 # namenode. servicerpc-address
|
||||
]);
|
||||
];
|
||||
preStart = (mkIf cfg.hdfs.namenode.formatOnInit
|
||||
"${cfg.package}/bin/hdfs --config ${hadoopConf} namenode -format -nonInteractive || true"
|
||||
);
|
||||
})
|
||||
(mkIf cfg.hdfs.datanode.enable {
|
||||
systemd.services.hdfs-datanode = {
|
||||
description = "Hadoop HDFS DataNode";
|
||||
wantedBy = [ "multi-user.target" ];
|
||||
inherit (cfg.hdfs.datanode) restartIfChanged;
|
||||
|
||||
serviceConfig = {
|
||||
User = "hdfs";
|
||||
SyslogIdentifier = "hdfs-datanode";
|
||||
ExecStart = "${cfg.package}/bin/hdfs --config ${hadoopConf} datanode";
|
||||
Restart = "always";
|
||||
};
|
||||
};
|
||||
|
||||
networking.firewall.allowedTCPPorts = (mkIf cfg.hdfs.datanode.openFirewall [
|
||||
(hadoopServiceConfig {
|
||||
name = "DataNode";
|
||||
allowedTCPPorts = [
|
||||
9864 # datanode.http.address
|
||||
9866 # datanode.address
|
||||
9867 # datanode.ipc.address
|
||||
]);
|
||||
];
|
||||
})
|
||||
(mkIf cfg.hdfs.journalnode.enable {
|
||||
systemd.services.hdfs-journalnode = {
|
||||
description = "Hadoop HDFS JournalNode";
|
||||
wantedBy = [ "multi-user.target" ];
|
||||
inherit (cfg.hdfs.journalnode) restartIfChanged;
|
||||
|
||||
serviceConfig = {
|
||||
User = "hdfs";
|
||||
SyslogIdentifier = "hdfs-journalnode";
|
||||
ExecStart = "${cfg.package}/bin/hdfs --config ${hadoopConf} journalnode";
|
||||
Restart = "always";
|
||||
};
|
||||
};
|
||||
|
||||
networking.firewall.allowedTCPPorts = (mkIf cfg.hdfs.journalnode.openFirewall [
|
||||
(hadoopServiceConfig {
|
||||
name = "JournalNode";
|
||||
allowedTCPPorts = [
|
||||
8480 # dfs.journalnode.http-address
|
||||
8485 # dfs.journalnode.rpc-address
|
||||
]);
|
||||
];
|
||||
})
|
||||
(mkIf cfg.hdfs.zkfc.enable {
|
||||
systemd.services.hdfs-zkfc = {
|
||||
description = "Hadoop HDFS ZooKeeper failover controller";
|
||||
wantedBy = [ "multi-user.target" ];
|
||||
inherit (cfg.hdfs.zkfc) restartIfChanged;
|
||||
|
||||
serviceConfig = {
|
||||
User = "hdfs";
|
||||
SyslogIdentifier = "hdfs-zkfc";
|
||||
ExecStart = "${cfg.package}/bin/hdfs --config ${hadoopConf} zkfc";
|
||||
Restart = "always";
|
||||
};
|
||||
};
|
||||
(hadoopServiceConfig {
|
||||
name = "zkfc";
|
||||
description = "Hadoop HDFS ZooKeeper failover controller";
|
||||
})
|
||||
(mkIf cfg.hdfs.httpfs.enable {
|
||||
systemd.services.hdfs-httpfs = {
|
||||
description = "Hadoop httpfs";
|
||||
wantedBy = [ "multi-user.target" ];
|
||||
inherit (cfg.hdfs.httpfs) restartIfChanged;
|
||||
|
||||
environment.HTTPFS_TEMP = cfg.hdfs.httpfs.tempPath;
|
||||
|
||||
preStart = ''
|
||||
mkdir -p $HTTPFS_TEMP
|
||||
'';
|
||||
|
||||
serviceConfig = {
|
||||
User = "httpfs";
|
||||
SyslogIdentifier = "hdfs-httpfs";
|
||||
ExecStart = "${cfg.package}/bin/hdfs --config ${hadoopConf} httpfs";
|
||||
Restart = "always";
|
||||
};
|
||||
};
|
||||
networking.firewall.allowedTCPPorts = (mkIf cfg.hdfs.httpfs.openFirewall [
|
||||
(hadoopServiceConfig {
|
||||
name = "HTTPFS";
|
||||
environment.HTTPFS_TEMP = cfg.hdfs.httpfs.tempPath;
|
||||
preStart = "mkdir -p $HTTPFS_TEMP";
|
||||
User = "httpfs";
|
||||
allowedTCPPorts = [
|
||||
14000 # httpfs.http.port
|
||||
]);
|
||||
];
|
||||
})
|
||||
(mkIf (
|
||||
|
||||
(mkIf
|
||||
(
|
||||
cfg.hdfs.namenode.enable || cfg.hdfs.datanode.enable || cfg.hdfs.journalnode.enable || cfg.hdfs.zkfc.enable
|
||||
) {
|
||||
users.users.hdfs = {
|
||||
description = "Hadoop HDFS user";
|
||||
group = "hadoop";
|
||||
uid = config.ids.uids.hdfs;
|
||||
};
|
||||
})
|
||||
)
|
||||
{
|
||||
users.users.hdfs = {
|
||||
description = "Hadoop HDFS user";
|
||||
group = "hadoop";
|
||||
uid = config.ids.uids.hdfs;
|
||||
};
|
||||
})
|
||||
(mkIf cfg.hdfs.httpfs.enable {
|
||||
users.users.httpfs = {
|
||||
description = "Hadoop HTTPFS user";
|
||||
|
||||
Loading…
Reference in New Issue
Block a user