134 lines
4.5 KiB
Nix
134 lines
4.5 KiB
Nix
{ config, lib, pkgs, ...}:
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let
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cfg = config.services.hadoop;
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in
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with lib;
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{
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imports = [ ./yarn.nix ./hdfs.nix ];
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options.services.hadoop = {
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coreSite = mkOption {
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default = {};
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type = types.attrsOf types.anything;
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example = literalExpression ''
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{
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"fs.defaultFS" = "hdfs://localhost";
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}
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'';
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description = "Hadoop core-site.xml definition";
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};
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hdfsSite = mkOption {
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default = {
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"dfs.namenode.rpc-bind-host" = "0.0.0.0";
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};
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type = types.attrsOf types.anything;
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example = literalExpression ''
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{
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"dfs.nameservices" = "namenode1";
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}
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'';
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description = "Hadoop hdfs-site.xml definition";
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};
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mapredSite = mkOption {
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default = {
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"mapreduce.framework.name" = "yarn";
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"yarn.app.mapreduce.am.env" = "HADOOP_MAPRED_HOME=${cfg.package}/lib/${cfg.package.untarDir}";
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"mapreduce.map.env" = "HADOOP_MAPRED_HOME=${cfg.package}/lib/${cfg.package.untarDir}";
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"mapreduce.reduce.env" = "HADOOP_MAPRED_HOME=${cfg.package}/lib/${cfg.package.untarDir}";
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};
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type = types.attrsOf types.anything;
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example = literalExpression ''
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options.services.hadoop.mapredSite.default // {
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"mapreduce.map.java.opts" = "-Xmx900m -XX:+UseParallelGC";
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}
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'';
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description = "Hadoop mapred-site.xml definition";
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};
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yarnSite = mkOption {
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default = {
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"yarn.nodemanager.admin-env" = "PATH=$PATH";
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"yarn.nodemanager.aux-services" = "mapreduce_shuffle";
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"yarn.nodemanager.aux-services.mapreduce_shuffle.class" = "org.apache.hadoop.mapred.ShuffleHandler";
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"yarn.nodemanager.bind-host" = "0.0.0.0";
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"yarn.nodemanager.container-executor.class" = "org.apache.hadoop.yarn.server.nodemanager.LinuxContainerExecutor";
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"yarn.nodemanager.env-whitelist" = "JAVA_HOME,HADOOP_COMMON_HOME,HADOOP_HDFS_HOME,HADOOP_CONF_DIR,CLASSPATH_PREPEND_DISTCACHE,HADOOP_YARN_HOME,HADOOP_HOME,LANG,TZ";
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"yarn.nodemanager.linux-container-executor.group" = "hadoop";
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"yarn.nodemanager.linux-container-executor.path" = "/run/wrappers/yarn-nodemanager/bin/container-executor";
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"yarn.nodemanager.log-dirs" = "/var/log/hadoop/yarn/nodemanager";
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"yarn.resourcemanager.bind-host" = "0.0.0.0";
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"yarn.resourcemanager.scheduler.class" = "org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler";
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};
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type = types.attrsOf types.anything;
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example = literalExpression ''
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options.services.hadoop.yarnSite.default // {
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"yarn.resourcemanager.hostname" = "''${config.networking.hostName}";
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}
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'';
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description = "Hadoop yarn-site.xml definition";
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};
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log4jProperties = mkOption {
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default = "${cfg.package}/lib/${cfg.package.untarDir}/etc/hadoop/log4j.properties";
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type = types.path;
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example = literalExpression ''
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"''${pkgs.hadoop}/lib/''${pkgs.hadoop.untarDir}/etc/hadoop/log4j.properties";
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'';
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description = "log4j.properties file added to HADOOP_CONF_DIR";
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};
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containerExecutorCfg = mkOption {
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default = {
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# must be the same as yarn.nodemanager.linux-container-executor.group in yarnSite
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"yarn.nodemanager.linux-container-executor.group"="hadoop";
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"min.user.id"=1000;
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"feature.terminal.enabled"=1;
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};
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type = types.attrsOf types.anything;
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example = literalExpression ''
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options.services.hadoop.containerExecutorCfg.default // {
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"feature.terminal.enabled" = 0;
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}
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'';
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description = "Yarn container-executor.cfg definition";
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};
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extraConfDirs = mkOption {
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default = [];
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type = types.listOf types.path;
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example = literalExpression ''
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[
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./extraHDFSConfs
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./extraYARNConfs
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]
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'';
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description = "Directories containing additional config files to be added to HADOOP_CONF_DIR";
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};
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package = mkOption {
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type = types.package;
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default = pkgs.hadoop;
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defaultText = literalExpression "pkgs.hadoop";
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description = "";
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};
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};
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config = mkMerge [
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(mkIf (builtins.hasAttr "yarn" config.users.users ||
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builtins.hasAttr "hdfs" config.users.users) {
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users.groups.hadoop = {
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gid = config.ids.gids.hadoop;
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};
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environment = {
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systemPackages = [ cfg.package ];
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etc."hadoop-conf".source = let
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hadoopConf = "${import ./conf.nix { inherit cfg pkgs lib; }}/";
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in "${hadoopConf}";
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};
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})
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];
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}
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