mirror of
https://github.com/ceph/ceph
synced 2024-12-24 04:14:07 +00:00
527 lines
18 KiB
Python
527 lines
18 KiB
Python
from cStringIO import StringIO
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import contextlib
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import logging
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from teuthology import misc as teuthology
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from teuthology import contextutil
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from teuthology.parallel import parallel
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from ..orchestra import run
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log = logging.getLogger(__name__)
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###################
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# This installeds and configures Hadoop, but requires that Ceph is already installed and running.
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##################
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## Check that there is exactly one master and at least one slave configured
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@contextlib.contextmanager
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def validate_config(ctx, config):
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log.info('Vaidating Hadoop configuration')
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slaves = ctx.cluster.only(teuthology.is_type('hadoop.slave'))
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if (len(slaves.remotes) < 1):
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raise Exception("At least one hadoop.slave must be specified")
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else:
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log.info(str(len(slaves.remotes)) + " slaves specified")
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masters = ctx.cluster.only(teuthology.is_type('hadoop.master'))
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if (len(masters.remotes) == 1):
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pass
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else:
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raise Exception("Exactly one hadoop.master must be specified. Currently there are " + str(len(masters.remotes)))
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try:
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yield
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finally:
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pass
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## Add required entries to conf/hadoop-env.sh
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def write_hadoop_env(ctx, config):
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hadoopEnvFile = "{tdir}/apache_hadoop/conf/hadoop-env.sh".format(tdir=teuthology.get_testdir(ctx))
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hadoopNodes = ctx.cluster.only(teuthology.is_type('hadoop'))
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for remote, roles_for_host in hadoopNodes.remotes.iteritems():
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teuthology.write_file(remote, hadoopEnvFile,
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'''export JAVA_HOME=/usr/lib/jvm/default-java
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export HADOOP_CLASSPATH=$HADOOP_CLASSPATH:/usr/share/java/libcephfs.jar:{tdir}/apache_hadoop/build/hadoop-core*.jar:{tdir}/inktank_hadoop/build/hadoop-cephfs.jar
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export HADOOP_NAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_NAMENODE_OPTS"
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export HADOOP_SECONDARYNAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_SECONDARYNAMENODE_OPTS"
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export HADOOP_DATANODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_DATANODE_OPTS"
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export HADOOP_BALANCER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_BALANCER_OPTS"
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export HADOOP_JOBTRACKER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_JOBTRACKER_OPTS"
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'''.format(tdir=teuthology.get_testdir(ctx)) )
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log.info("wrote file: " + hadoopEnvFile + " to host: " + str(remote))
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## Add required entries to conf/core-site.xml
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def write_core_site(ctx, config):
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testdir = teuthology.get_testdir(ctx)
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coreSiteFile = "{tdir}/apache_hadoop/conf/core-site.xml".format(tdir=testdir)
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hadoopNodes = ctx.cluster.only(teuthology.is_type('hadoop'))
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for remote, roles_for_host in hadoopNodes.remotes.iteritems():
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# check the config to see if we should use hdfs or ceph
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default_fs_string = ""
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if config.get('hdfs'):
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default_fs_string = 'hdfs://{master_ip}:54310'.format(master_ip=get_hadoop_master_ip(ctx))
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else:
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default_fs_string = 'ceph:///'
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teuthology.write_file(remote, coreSiteFile,
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'''<?xml version="1.0"?>
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<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
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<!-- Put site-specific property overrides in this file. -->
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<configuration>
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<property>
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<name>hadoop.tmp.dir</name>
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<value>/tmp/hadoop/tmp</value>
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</property>
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<property>
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<name>fs.default.name</name>
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<value>{default_fs}</value>
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</property>
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<property>
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<name>ceph.conf.file</name>
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<value>/etc/ceph/ceph.conf</value>
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</property>
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<property>
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<name>fs.ceph.impl</name>
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<value>org.apache.hadoop.fs.ceph.CephFileSystem</value>
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</property>
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</configuration>
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'''.format(tdir=teuthology.get_testdir(ctx), default_fs=default_fs_string))
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log.info("wrote file: " + coreSiteFile + " to host: " + str(remote))
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## finds the hadoop.master in the ctx and then pulls out just the IP address
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def get_hadoop_master_ip(ctx):
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remote, _ = _get_master(ctx)
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master_name,master_port= remote.ssh.get_transport().getpeername()
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log.info('master name: {name} port {port}'.format(name=master_name,port=master_port))
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return master_name
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## Add required entries to conf/mapred-site.xml
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def write_mapred_site(ctx):
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mapredSiteFile = "{tdir}/apache_hadoop/conf/mapred-site.xml".format(tdir=teuthology.get_testdir(ctx))
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master_ip = get_hadoop_master_ip(ctx)
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log.info('adding host {remote} as jobtracker'.format(remote=master_ip))
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hadoopNodes = ctx.cluster.only(teuthology.is_type('hadoop'))
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for remote, roles_for_host in hadoopNodes.remotes.iteritems():
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teuthology.write_file(remote, mapredSiteFile,
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'''<?xml version="1.0"?>
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<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
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<!-- Put site-specific property overrides in this file. -->
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<configuration>
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<property>
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<name>mapred.job.tracker</name>
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<value>{remote}:54311</value>
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</property>
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</configuration>
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'''.format(remote=master_ip))
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log.info("wrote file: " + mapredSiteFile + " to host: " + str(remote))
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## Add required entries to conf/hdfs-site.xml
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def write_hdfs_site(ctx):
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hdfsSiteFile = "{tdir}/apache_hadoop/conf/hdfs-site.xml".format(tdir=teuthology.get_testdir(ctx))
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hadoopNodes = ctx.cluster.only(teuthology.is_type('hadoop'))
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for remote, roles_for_host in hadoopNodes.remotes.iteritems():
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teuthology.write_file(remote, hdfsSiteFile,
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'''<?xml version="1.0"?>
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<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
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<!-- Put site-specific property overrides in this file. -->
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<configuration>
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<property>
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<name>dfs.replication</name>
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<value>1</value>
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</property>
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</configuration>
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''' )
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log.info("wrote file: " + hdfsSiteFile + " to host: " + str(remote))
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## Add required entries to conf/slaves
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## These nodes host TaskTrackers and DataNodes
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def write_slaves(ctx):
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log.info('Setting up slave nodes...')
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slavesFile = "{tdir}/apache_hadoop/conf/slaves".format(tdir=teuthology.get_testdir(ctx))
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tmpFile = StringIO()
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slaves = ctx.cluster.only(teuthology.is_type('hadoop.slave'))
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for remote, roles_for_host in slaves.remotes.iteritems():
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tmpFile.write('{remote}\n'.format(remote=remote.ssh.get_transport().getpeername()[0]))
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tmpFile.seek(0)
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hadoopNodes = ctx.cluster.only(teuthology.is_type('hadoop'))
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for remote, roles_for_host in hadoopNodes.remotes.iteritems():
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teuthology.write_file(remote=remote, path=slavesFile, data=tmpFile)
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tmpFile.seek(0)
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log.info("wrote file: " + slavesFile + " to host: " + str(remote))
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## Add required entries to conf/masters
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## These nodes host JobTrackers and Namenodes
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def write_master(ctx):
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mastersFile = "{tdir}/apache_hadoop/conf/masters".format(tdir=teuthology.get_testdir(ctx))
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master = _get_master(ctx)
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master_remote, _ = master
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hadoopNodes = ctx.cluster.only(teuthology.is_type('hadoop'))
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for remote, roles_for_host in hadoopNodes.remotes.iteritems():
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teuthology.write_file(remote, mastersFile, '{master_host}\n'.format(master_host=master_remote.ssh.get_transport().getpeername()[0]))
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log.info("wrote file: " + mastersFile + " to host: " + str(remote))
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## Call the various functions that configure Hadoop
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def _configure_hadoop(ctx, config):
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log.info('writing out config files')
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write_hadoop_env(ctx, config)
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write_core_site(ctx, config)
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write_mapred_site(ctx)
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write_hdfs_site(ctx)
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write_slaves(ctx)
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write_master(ctx)
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@contextlib.contextmanager
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def configure_hadoop(ctx, config):
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_configure_hadoop(ctx,config)
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log.info('config.get(hdfs): {hdfs}'.format(hdfs=config.get('hdfs')))
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if config.get('hdfs'):
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log.info('hdfs option specified. Setting up hdfs')
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# let's run this from the master
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master = _get_master(ctx)
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remote, _ = master
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remote.run(
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args=["{tdir}/apache_hadoop/bin/hadoop".format(tdir=teuthology.get_testdir(ctx)),
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"namenode",
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"-format"],
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wait=True,
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)
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log.info('done setting up hadoop')
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try:
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yield
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finally:
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log.info('Removing hdfs directory')
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run.wait(
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ctx.cluster.run(
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args=[
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'rm',
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'-rf',
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'/tmp/hadoop',
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],
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wait=False,
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),
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)
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def _start_hadoop(ctx, remote, config):
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testdir = teuthology.get_testdir(ctx)
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if config.get('hdfs'):
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remote.run(
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args=['{tdir}/apache_hadoop/bin/start-dfs.sh'.format(tdir=testdir), ],
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wait=True,
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)
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log.info('done starting hdfs')
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remote.run(
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args=['{tdir}/apache_hadoop/bin/start-mapred.sh'.format(tdir=testdir), ],
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wait=True,
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)
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log.info('done starting mapred')
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def _stop_hadoop(ctx, remote, config):
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testdir = teuthology.get_testdir(ctx)
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remote.run(
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args=['{tdir}/apache_hadoop/bin/stop-mapred.sh'.format(tdir=testdir), ],
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wait=True,
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)
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if config.get('hdfs'):
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remote.run(
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args=['{tdir}/apache_hadoop/bin/stop-dfs.sh'.format(tdir=testdir), ],
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wait=True,
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)
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log.info('done stopping hadoop')
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def _get_master(ctx):
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master = ctx.cluster.only(teuthology.is_type('hadoop.master'))
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assert 1 == len(master.remotes.items()), 'There must be exactly 1 hadoop.master configured'
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return master.remotes.items()[0]
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@contextlib.contextmanager
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def start_hadoop(ctx, config):
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master = _get_master(ctx)
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remote, _ = master
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log.info('Starting hadoop on {remote}\n'.format(remote=remote.ssh.get_transport().getpeername()[0]))
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_start_hadoop(ctx, remote, config)
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try:
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yield
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finally:
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log.info('Running stop-mapred.sh on {remote}'.format(remote=remote.ssh.get_transport().getpeername()[0]))
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_stop_hadoop(ctx, remote, config)
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# download and untar the most recent apache hadoop binaries into {testdir}/apache_hadoop
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def _download_apache_hadoop_binaries(ctx, remote, hadoop_url):
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log.info('_download_apache_hadoop_binaries: path {path} on host {host}'.format(path=hadoop_url, host=str(remote)))
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fileName = 'apache-hadoop.tgz'
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testdir = teuthology.get_testdir(ctx)
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remote.run(
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args=[
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'mkdir', '-p', '-m0755', '{tdir}/apache_hadoop'.format(tdir=testdir),
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run.Raw('&&'),
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'echo',
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'{fileName}'.format(fileName=fileName),
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run.Raw('|'),
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'wget',
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'-nv',
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'-O-',
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'--base={url}'.format(url=hadoop_url),
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# need to use --input-file to make wget respect --base
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'--input-file=-',
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run.Raw('|'),
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'tar', '-xzf', '-', '-C', '{tdir}/apache_hadoop'.format(tdir=testdir),
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],
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)
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# download and untar the most recent Inktank hadoop binaries into {testdir}/hadoop
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def _download_inktank_hadoop_binaries(ctx, remote, hadoop_url):
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log.info('_download_inktank_hadoop_binaries: path {path} on host {host}'.format(path=hadoop_url, host=str(remote)))
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fileName = 'hadoop.tgz'
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testdir = teuthology.get_testdir(ctx)
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remote.run(
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args=[
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'mkdir', '-p', '-m0755', '{tdir}/inktank_hadoop'.format(tdir=testdir),
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run.Raw('&&'),
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'echo',
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'{fileName}'.format(fileName=fileName),
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run.Raw('|'),
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'wget',
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'-nv',
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'-O-',
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'--base={url}'.format(url=hadoop_url),
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# need to use --input-file to make wget respect --base
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'--input-file=-',
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run.Raw('|'),
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'tar', '-xzf', '-', '-C', '{tdir}/inktank_hadoop'.format(tdir=testdir),
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],
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)
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# copy hadoop-cephfs.jar and hadoop-cephfs-test.jar into apache_hadoop
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def _copy_hadoop_cephfs_jars(ctx, remote, from_dir, to_dir):
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testdir = teuthology.get_testdir(ctx)
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log.info('copy jars from {from_dir} to {to_dir} on host {host}'.format(from_dir=from_dir, to_dir=to_dir, host=str(remote)))
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file_names = [ 'hadoop-cephfs.jar', 'hadoop-cephfs-test.jar' ]
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for file_name in file_names:
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log.info('Copying file {file_name}'.format(file_name=file_name))
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remote.run(
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args=[ 'cp', '{tdir}/{from_dir}/{file_name}'.format(tdir=testdir,from_dir=from_dir,file_name=file_name),
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'{tdir}/{to_dir}/'.format(tdir=testdir,to_dir=to_dir)
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],
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)
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def _node_binaries(ctx, config, remote, inktank_hadoop_bindir_url, apache_hadoop_bindir_url):
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_download_inktank_hadoop_binaries(ctx, remote, inktank_hadoop_bindir_url)
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_download_apache_hadoop_binaries(ctx, remote, apache_hadoop_bindir_url)
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_copy_hadoop_cephfs_jars(ctx, remote, 'inktank_hadoop/build', 'apache_hadoop/build')
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@contextlib.contextmanager
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def binaries(ctx, config):
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path = config.get('path')
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if path is None:
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# fetch Apache Hadoop from gitbuilder
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log.info('Fetching and unpacking Apache Hadoop binaries from gitbuilder...')
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apache_sha1, apache_hadoop_bindir_url = teuthology.get_ceph_binary_url(
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package='apache-hadoop',
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branch=config.get('apache_branch'),
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tag=config.get('tag'),
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sha1=config.get('sha1'),
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flavor=config.get('flavor'),
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format=config.get('format'),
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dist=config.get('dist'),
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arch=config.get('arch'),
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)
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log.info('apache_hadoop_bindir_url %s' % (apache_hadoop_bindir_url))
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ctx.summary['apache-hadoop-sha1'] = apache_sha1
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# fetch Inktank Hadoop from gitbuilder
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log.info('Fetching and unpacking Inktank Hadoop binaries from gitbuilder...')
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inktank_sha1, inktank_hadoop_bindir_url = teuthology.get_ceph_binary_url(
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package='hadoop',
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branch=config.get('inktank_branch'),
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tag=config.get('tag'),
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sha1=config.get('sha1'),
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flavor=config.get('flavor'),
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format=config.get('format'),
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dist=config.get('dist'),
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arch=config.get('arch'),
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)
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log.info('inktank_hadoop_bindir_url %s' % (inktank_hadoop_bindir_url))
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ctx.summary['inktank-hadoop-sha1'] = inktank_sha1
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else:
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raise Exception("The hadoop task does not support the path argument at present")
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with parallel() as p:
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hadoopNodes = ctx.cluster.only(teuthology.is_type('hadoop'))
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# these can happen independently
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for remote in hadoopNodes.remotes.iterkeys():
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p.spawn(_node_binaries, ctx, config, remote, inktank_hadoop_bindir_url, apache_hadoop_bindir_url)
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try:
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yield
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finally:
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log.info('Removing hadoop binaries...')
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run.wait(
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ctx.cluster.run(
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args=[ 'rm', '-rf', '--', '{tdir}/apache_hadoop'.format(tdir=teuthology.get_testdir(ctx))],
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wait=False,
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),
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)
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run.wait(
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ctx.cluster.run(
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args=[ 'rm', '-rf', '--', '{tdir}/inktank_hadoop'.format(tdir=teuthology.get_testdir(ctx))],
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wait=False,
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),
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)
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## A Hadoop NameNode will stay in safe mode for 30 seconds by default.
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## This method blocks until the NameNode is out of safe mode.
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@contextlib.contextmanager
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def out_of_safemode(ctx, config):
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if config.get('hdfs'):
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log.info('Waiting for the Namenode to exit safe mode...')
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master = _get_master(ctx)
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remote, _ = master
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remote.run(
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args=["{tdir}/apache_hadoop/bin/hadoop".format(tdir=teuthology.get_testdir(ctx)),
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"dfsadmin",
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"-safemode",
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"wait"],
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wait=True,
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)
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else:
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pass
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try:
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yield
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finally:
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pass
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@contextlib.contextmanager
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def task(ctx, config):
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"""
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Set up and tear down a Hadoop cluster.
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This depends on either having ceph installed prior to hadoop, like so:
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roles:
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- [mon.0, mds.0, osd.0, hadoop.master.0]
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- [mon.1, osd.1, hadoop.slave.0]
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- [mon.2, hadoop.slave.1]
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tasks:
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- ceph:
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- hadoop:
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Or if you want to use HDFS under Hadoop, this will configure Hadoop
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for HDFS and start it along with MapReduce. Note that it does not
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require Ceph be installed.
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roles:
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- [hadoop.master.0]
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- [hadoop.slave.0]
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- [hadoop.slave.1]
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tasks:
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- hadoop:
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hdfs: True
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This task requires exactly one hadoop.master be specified
|
|
and at least one hadoop.slave.
|
|
|
|
This does *not* do anything with the Hadoop setup. To run wordcount,
|
|
you could use pexec like so (after the hadoop task):
|
|
|
|
- pexec:
|
|
hadoop.slave.0:
|
|
- mkdir -p /tmp/hadoop_input
|
|
- wget http://ceph.com/qa/hadoop_input_files.tar -O /tmp/hadoop_input/files.tar
|
|
- cd /tmp/hadoop_input/; tar -xf /tmp/hadoop_input/files.tar
|
|
- {tdir}/hadoop/bin/hadoop fs -mkdir wordcount_input
|
|
- {tdir}/hadoop/bin/hadoop fs -put /tmp/hadoop_input/*txt wordcount_input/
|
|
- {tdir}/hadoop/bin/hadoop jar {tdir}/hadoop/build/hadoop-example*jar wordcount wordcount_input wordcount_output
|
|
- rm -rf /tmp/hadoop_input
|
|
""".format(tdir=teuthology.get_testdir(ctx))
|
|
|
|
if config is None:
|
|
config = {}
|
|
assert isinstance(config, dict), \
|
|
"task hadoop only supports a dictionary for configuration"
|
|
|
|
dist = 'precise'
|
|
format = 'jar'
|
|
arch = 'x86_64'
|
|
flavor = config.get('flavor', 'basic')
|
|
|
|
ctx.summary['flavor'] = flavor
|
|
|
|
overrides = ctx.config.get('overrides', {})
|
|
teuthology.deep_merge(config, overrides.get('hadoop', {}))
|
|
|
|
apache_branch = None
|
|
if config.get('apache_hadoop_branch') is not None:
|
|
apache_branch = config.get('apache_hadoop_branch')
|
|
else:
|
|
apache_branch = 'branch-1.0' # hadoop branch to acquire
|
|
|
|
inktank_branch = None
|
|
if config.get('inktank_hadoop_branch') is not None:
|
|
inktank_branch = config.get('inktank_hadoop_branch')
|
|
else:
|
|
inktank_branch = 'cephfs/branch-1.0' # default branch name
|
|
|
|
# replace any '/' with a '_' to match the artifact paths
|
|
inktank_branch = inktank_branch.replace('/','_')
|
|
apache_branch = apache_branch.replace('/','_')
|
|
|
|
with contextutil.nested(
|
|
lambda: validate_config(ctx=ctx, config=config),
|
|
lambda: binaries(ctx=ctx, config=dict(
|
|
tag=config.get('tag'),
|
|
sha1=config.get('sha1'),
|
|
path=config.get('path'),
|
|
flavor=flavor,
|
|
dist=config.get('dist', dist),
|
|
format=format,
|
|
arch=arch,
|
|
apache_branch=apache_branch,
|
|
inktank_branch=inktank_branch,
|
|
)),
|
|
lambda: configure_hadoop(ctx=ctx, config=config),
|
|
lambda: start_hadoop(ctx=ctx, config=config),
|
|
lambda: out_of_safemode(ctx=ctx, config=config),
|
|
):
|
|
yield
|