255 lines
9 KiB
Nix
255 lines
9 KiB
Nix
# This test is very comprehensive. It tests whether all hadoop services work well with each other.
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# Run this when updating the Hadoop package or making significant changes to the hadoop module.
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# For a more basic test, see hdfs.nix and yarn.nix
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import ../make-test-python.nix ({ package, ... }: {
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name = "hadoop-combined";
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nodes =
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let
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coreSite = {
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"fs.defaultFS" = "hdfs://ns1";
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};
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hdfsSite = {
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# HA Quorum Journal Manager configuration
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"dfs.nameservices" = "ns1";
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"dfs.ha.namenodes.ns1" = "nn1,nn2";
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"dfs.namenode.shared.edits.dir.ns1" = "qjournal://jn1:8485;jn2:8485;jn3:8485/ns1";
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"dfs.namenode.rpc-address.ns1.nn1" = "nn1:8020";
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"dfs.namenode.rpc-address.ns1.nn2" = "nn2:8020";
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"dfs.namenode.servicerpc-address.ns1.nn1" = "nn1:8022";
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"dfs.namenode.servicerpc-address.ns1.nn2" = "nn2:8022";
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"dfs.namenode.http-address.ns1.nn1" = "nn1:9870";
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"dfs.namenode.http-address.ns1.nn2" = "nn2:9870";
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# Automatic failover configuration
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"dfs.client.failover.proxy.provider.ns1" = "org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider";
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"dfs.ha.automatic-failover.enabled.ns1" = "true";
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"dfs.ha.fencing.methods" = "shell(true)";
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"ha.zookeeper.quorum" = "zk1:2181";
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};
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yarnSite = {
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"yarn.resourcemanager.zk-address" = "zk1:2181";
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"yarn.resourcemanager.ha.enabled" = "true";
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"yarn.resourcemanager.ha.rm-ids" = "rm1,rm2";
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"yarn.resourcemanager.hostname.rm1" = "rm1";
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"yarn.resourcemanager.hostname.rm2" = "rm2";
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"yarn.resourcemanager.ha.automatic-failover.enabled" = "true";
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"yarn.resourcemanager.cluster-id" = "cluster1";
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# yarn.resourcemanager.webapp.address needs to be defined even though yarn.resourcemanager.hostname is set. This shouldn't be necessary, but there's a bug in
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# hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/main/java/org/apache/hadoop/yarn/server/webproxy/amfilter/AmFilterInitializer.java:70
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# that causes AM containers to fail otherwise.
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"yarn.resourcemanager.webapp.address.rm1" = "rm1:8088";
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"yarn.resourcemanager.webapp.address.rm2" = "rm2:8088";
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};
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in
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{
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zk1 = { ... }: {
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services.zookeeper.enable = true;
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networking.firewall.allowedTCPPorts = [ 2181 ];
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};
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# HDFS cluster
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nn1 = { ... }: {
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services.hadoop = {
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inherit package coreSite hdfsSite;
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hdfs.namenode = {
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enable = true;
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openFirewall = true;
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};
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hdfs.zkfc.enable = true;
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};
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};
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nn2 = { ... }: {
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services.hadoop = {
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inherit package coreSite hdfsSite;
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hdfs.namenode = {
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enable = true;
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openFirewall = true;
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};
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hdfs.zkfc.enable = true;
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};
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};
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jn1 = { ... }: {
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services.hadoop = {
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inherit package coreSite hdfsSite;
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hdfs.journalnode = {
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enable = true;
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openFirewall = true;
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};
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};
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};
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jn2 = { ... }: {
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services.hadoop = {
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inherit package coreSite hdfsSite;
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hdfs.journalnode = {
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enable = true;
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openFirewall = true;
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};
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};
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};
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jn3 = { ... }: {
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services.hadoop = {
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inherit package coreSite hdfsSite;
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hdfs.journalnode = {
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enable = true;
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openFirewall = true;
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};
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};
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};
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dn1 = { ... }: {
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services.hadoop = {
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inherit package coreSite hdfsSite;
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hdfs.datanode = {
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enable = true;
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openFirewall = true;
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};
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};
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};
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# YARN cluster
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rm1 = { options, ... }: {
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services.hadoop = {
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inherit package coreSite hdfsSite yarnSite;
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yarn.resourcemanager = {
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enable = true;
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openFirewall = true;
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};
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};
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};
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rm2 = { options, ... }: {
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services.hadoop = {
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inherit package coreSite hdfsSite yarnSite;
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yarn.resourcemanager = {
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enable = true;
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openFirewall = true;
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};
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};
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};
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nm1 = { options, ... }: {
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virtualisation.memorySize = 2048;
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services.hadoop = {
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inherit package coreSite hdfsSite yarnSite;
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yarn.nodemanager = {
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enable = true;
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openFirewall = true;
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};
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};
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};
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client = { options, ... }: {
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services.hadoop = {
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gatewayRole.enable = true;
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inherit package coreSite hdfsSite yarnSite;
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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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#### HDFS tests ####
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zk1.wait_for_unit("network.target")
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jn1.wait_for_unit("network.target")
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jn2.wait_for_unit("network.target")
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jn3.wait_for_unit("network.target")
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nn1.wait_for_unit("network.target")
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nn2.wait_for_unit("network.target")
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dn1.wait_for_unit("network.target")
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zk1.wait_for_unit("zookeeper")
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jn1.wait_for_unit("hdfs-journalnode")
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jn2.wait_for_unit("hdfs-journalnode")
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jn3.wait_for_unit("hdfs-journalnode")
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zk1.wait_for_open_port(2181)
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jn1.wait_for_open_port(8480)
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jn1.wait_for_open_port(8485)
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jn2.wait_for_open_port(8480)
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jn2.wait_for_open_port(8485)
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# Namenodes must be stopped before initializing the cluster
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nn1.succeed("systemctl stop hdfs-namenode")
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nn2.succeed("systemctl stop hdfs-namenode")
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nn1.succeed("systemctl stop hdfs-zkfc")
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nn2.succeed("systemctl stop hdfs-zkfc")
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# Initialize zookeeper for failover controller
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nn1.succeed("sudo -u hdfs systemd-cat hdfs zkfc -formatZK")
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# Format NN1 and start it
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nn1.succeed("sudo -u hdfs systemd-cat hadoop namenode -format")
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nn1.succeed("systemctl start hdfs-namenode")
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nn1.wait_for_open_port(9870)
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nn1.wait_for_open_port(8022)
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nn1.wait_for_open_port(8020)
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# Bootstrap NN2 from NN1 and start it
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nn2.succeed("sudo -u hdfs systemd-cat hdfs namenode -bootstrapStandby")
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nn2.succeed("systemctl start hdfs-namenode")
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nn2.wait_for_open_port(9870)
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nn2.wait_for_open_port(8022)
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nn2.wait_for_open_port(8020)
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nn1.succeed("systemd-cat netstat -tulpne")
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# Start failover controllers
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nn1.succeed("systemctl start hdfs-zkfc")
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nn2.succeed("systemctl start hdfs-zkfc")
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# DN should have started by now, but confirm anyway
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dn1.wait_for_unit("hdfs-datanode")
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# Print states of namenodes
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client.succeed("sudo -u hdfs systemd-cat hdfs haadmin -getAllServiceState")
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# Wait for cluster to exit safemode
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client.succeed("sudo -u hdfs hdfs dfsadmin -safemode wait")
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client.succeed("sudo -u hdfs systemd-cat hdfs haadmin -getAllServiceState")
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# test R/W
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client.succeed("echo testfilecontents | sudo -u hdfs hdfs dfs -put - /testfile")
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assert "testfilecontents" in client.succeed("sudo -u hdfs hdfs dfs -cat /testfile")
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# Test NN failover
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nn1.succeed("systemctl stop hdfs-namenode")
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assert "active" in client.succeed("sudo -u hdfs hdfs haadmin -getAllServiceState")
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client.succeed("sudo -u hdfs systemd-cat hdfs haadmin -getAllServiceState")
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assert "testfilecontents" in client.succeed("sudo -u hdfs hdfs dfs -cat /testfile")
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nn1.succeed("systemctl start hdfs-namenode")
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nn1.wait_for_open_port(9870)
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nn1.wait_for_open_port(8022)
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nn1.wait_for_open_port(8020)
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assert "standby" in client.succeed("sudo -u hdfs hdfs haadmin -getAllServiceState")
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client.succeed("sudo -u hdfs systemd-cat hdfs haadmin -getAllServiceState")
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#### YARN tests ####
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rm1.wait_for_unit("network.target")
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rm2.wait_for_unit("network.target")
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nm1.wait_for_unit("network.target")
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rm1.wait_for_unit("yarn-resourcemanager")
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rm1.wait_for_open_port(8088)
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rm2.wait_for_unit("yarn-resourcemanager")
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rm2.wait_for_open_port(8088)
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nm1.wait_for_unit("yarn-nodemanager")
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nm1.wait_for_open_port(8042)
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nm1.wait_for_open_port(8040)
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client.wait_until_succeeds("yarn node -list | grep Nodes:1")
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client.succeed("sudo -u yarn systemd-cat yarn rmadmin -getAllServiceState")
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client.succeed("sudo -u yarn systemd-cat yarn node -list")
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# Test RM failover
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rm1.succeed("systemctl stop yarn-resourcemanager")
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assert "standby" not in client.succeed("sudo -u yarn yarn rmadmin -getAllServiceState")
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client.succeed("sudo -u yarn systemd-cat yarn rmadmin -getAllServiceState")
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rm1.succeed("systemctl start yarn-resourcemanager")
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rm1.wait_for_unit("yarn-resourcemanager")
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rm1.wait_for_open_port(8088)
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assert "standby" in client.succeed("sudo -u yarn yarn rmadmin -getAllServiceState")
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client.succeed("sudo -u yarn systemd-cat yarn rmadmin -getAllServiceState")
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assert "Estimated value of Pi is" in client.succeed("HADOOP_USER_NAME=hdfs yarn jar $(readlink $(which yarn) | sed -r 's~bin/yarn~share/hadoop/mapreduce/hadoop-mapreduce-examples-*.jar~g') pi 2 10")
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assert "SUCCEEDED" in client.succeed("yarn application -list -appStates FINISHED")
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'';
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})
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