atlas_start.py 6.5 KB
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#!/usr/bin/env python

#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import sys
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import traceback
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import atlas_config as mc
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ATLAS_LOG_OPTS="-Datlas.log.dir=%s -Datlas.log.file=%s.log"
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ATLAS_COMMAND_OPTS="-Datlas.home=%s"
ATLAS_CONFIG_OPTS="-Datlas.conf=%s"
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DEFAULT_JVM_HEAP_OPTS="-Xmx1024m"
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DEFAULT_JVM_OPTS="-Dlog4j.configuration=atlas-log4j.xml -Djava.net.preferIPv4Stack=true -server"
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def main():

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    is_setup = (len(sys.argv)>1) and sys.argv[1] is not None and sys.argv[1] == '-setup'

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    atlas_home = mc.atlasDir()
    confdir = mc.dirMustExist(mc.confDir(atlas_home))
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    mc.executeEnvSh(confdir)
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    logdir = mc.dirMustExist(mc.logDir(atlas_home))
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    mc.dirMustExist(mc.dataDir(atlas_home))
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    if mc.isCygwin():
        # Pathnames that are passed to JVM must be converted to Windows format.
        jvm_atlas_home = mc.convertCygwinPath(atlas_home)
        jvm_confdir = mc.convertCygwinPath(confdir)
        jvm_logdir = mc.convertCygwinPath(logdir)
    else:
        jvm_atlas_home = atlas_home
        jvm_confdir = confdir
        jvm_logdir = logdir
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    #create sys property for conf dirs
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    if not is_setup:
        jvm_opts_list = (ATLAS_LOG_OPTS % (jvm_logdir, "application")).split()
    else:
        jvm_opts_list = (ATLAS_LOG_OPTS % (jvm_logdir, "atlas_setup")).split()
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    cmd_opts = (ATLAS_COMMAND_OPTS % jvm_atlas_home)
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    jvm_opts_list.extend(cmd_opts.split())

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    config_opts = (ATLAS_CONFIG_OPTS % jvm_confdir)
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    jvm_opts_list.extend(config_opts.split())

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    atlas_server_heap_opts = os.environ.get(mc.ATLAS_SERVER_HEAP, DEFAULT_JVM_HEAP_OPTS)
    jvm_opts_list.extend(atlas_server_heap_opts.split())

    atlas_server_jvm_opts = os.environ.get(mc.ATLAS_SERVER_OPTS)
    if atlas_server_jvm_opts:
        jvm_opts_list.extend(atlas_server_jvm_opts.split())

    atlas_jvm_opts = os.environ.get(mc.ATLAS_OPTS, DEFAULT_JVM_OPTS)
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    jvm_opts_list.extend(atlas_jvm_opts.split())
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    #expand web app dir
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    web_app_dir = mc.webAppDir(atlas_home)
    mc.expandWebApp(atlas_home)
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    p = os.pathsep
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    atlas_classpath = confdir + p \
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                       + os.path.join(web_app_dir, "atlas", "WEB-INF", "classes" ) + p \
                       + os.path.join(web_app_dir, "atlas", "WEB-INF", "lib", "*" )  + p \
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                       + os.path.join(atlas_home, "libext", "*")
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    is_hbase = mc.is_hbase(confdir)

    if is_hbase:
        #add hbase-site.xml to classpath
        hbase_conf_dir = mc.hbaseConfDir(atlas_home)

        if os.path.exists(hbase_conf_dir):
            atlas_classpath = atlas_classpath + p \
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                            + hbase_conf_dir
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        else:
            if mc.is_hbase(confdir):
                raise Exception("Could not find hbase-site.xml in %s. Please set env var HBASE_CONF_DIR to the hbase client conf dir", hbase_conf_dir)
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    if mc.isCygwin():
        atlas_classpath = mc.convertCygwinPath(atlas_classpath, True)

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    atlas_pid_file = mc.pidFile(atlas_home)
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    if os.path.isfile(atlas_pid_file):
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       #Check if process listed in atlas.pid file is still running
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       pf = file(atlas_pid_file, 'r')
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       pid = pf.read().strip()
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       pf.close()
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       if pid != "":
           if mc.exist_pid((int)(pid)):
               if is_setup:
                   print "Cannot run setup when server is running."
               mc.server_already_running(pid)
           else:
               mc.server_pid_not_running(pid)
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    if is_hbase and mc.is_hbase_local(confdir):
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        print "configured for local hbase."
        mc.configure_hbase(atlas_home)
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        mc.run_hbase_action(mc.hbaseBinDir(atlas_home), "start", hbase_conf_dir, logdir)
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        print "hbase started."

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    #solr setup
    if mc.is_solr_local(confdir):
        print "configured for local solr."
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        if mc.is_cassandra_local(confdir):
            print "Cassandra embedded configured."
            mc.configure_cassandra(atlas_home)
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        if mc.is_zookeeper_local(confdir):
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            mc.configure_zookeeper(atlas_home)
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            mc.run_zookeeper(mc.zookeeperBinDir(atlas_home), "start", logdir)
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            print "zookeeper started."

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        mc.run_solr(mc.solrBinDir(atlas_home), "start", mc.get_solr_zk_url(confdir), mc.solrPort(), logdir, True, mc.solrHomeDir(atlas_home))
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        print "solr started."

        print "setting up solr collections..."
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        mc.create_solr_collection(mc.solrBinDir(atlas_home), mc.solrConfDir(atlas_home), "vertex_index", logdir)
        mc.create_solr_collection(mc.solrBinDir(atlas_home), mc.solrConfDir(atlas_home), "edge_index", logdir)
        mc.create_solr_collection(mc.solrBinDir(atlas_home), mc.solrConfDir(atlas_home), "fulltext_index", logdir)
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    #elasticsearch setup
    if mc.is_elasticsearch_local():
        print "configured for local elasticsearch."
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        mc.start_elasticsearch(mc.elasticsearchBinDir(atlas_home), logdir)
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        print "elasticsearch started."

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    web_app_path = os.path.join(web_app_dir, "atlas")
    if (mc.isCygwin()):
        web_app_path = mc.convertCygwinPath(web_app_path)
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    if not is_setup:
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        start_atlas_server(atlas_classpath, atlas_pid_file, jvm_logdir, jvm_opts_list, web_app_path)
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        mc.wait_for_startup(confdir, 300)
        print "Apache Atlas Server started!!!\n"
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    else:
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        process = mc.java("org.apache.atlas.web.setup.AtlasSetup", [], atlas_classpath, jvm_opts_list, jvm_logdir)
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        return process.wait()


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def start_atlas_server(atlas_classpath, atlas_pid_file, jvm_logdir, jvm_opts_list, web_app_path):
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    args = ["-app", web_app_path]
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    args.extend(sys.argv[1:])
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    process = mc.java("org.apache.atlas.Atlas", args, atlas_classpath, jvm_opts_list, jvm_logdir)
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    mc.writePid(atlas_pid_file, process)
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if __name__ == '__main__':
    try:
        returncode = main()
    except Exception as e:
        print "Exception: %s " % str(e)
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        print traceback.format_exc()
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        returncode = -1

    sys.exit(returncode)