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OpenSearch/dev-tools/create-bwc-index.py

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Python
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# Licensed to Elasticsearch under one or more contributor
# license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright
# ownership. Elasticsearch 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 random
import os
import tempfile
import shutil
import subprocess
import time
import argparse
import logging
import sys
import re
if sys.version_info[0] > 2:
print('%s must use python 2.x (for the ES python client)' % sys.argv[0])
from datetime import datetime
try:
from elasticsearch import Elasticsearch
from elasticsearch.exceptions import ConnectionError
from elasticsearch.exceptions import TransportError
except ImportError as e:
print('Can\'t import elasticsearch please install `sudo pip install elasticsearch`')
sys.exit(1)
BLACK_LIST = {'1.2.0' : { 'reason': 'Contains a major bug where routing hashes are not consistent with previous version',
'issue': 'https://github.com/elasticsearch/elasticsearch/pull/6393'},
'1.3.0' : { 'reason': 'Lucene Related bug prevents upgrades from 0.90.7 and some earlier versions ',
'issue' : 'https://github.com/elasticsearch/elasticsearch/pull/7055'}}
# sometimes returns True
def rarely():
return random.randint(0, 10) == 0
# usually returns True
def frequently():
return not rarely()
# asserts the correctness of the given hits given they are sorted asc
def assert_sort(hits):
values = [hit['sort'] for hit in hits['hits']['hits']]
assert len(values) > 0, 'expected non emtpy result'
val = min(values)
for x in values:
assert x >= val, '%s >= %s' % (x, val)
val = x
# Indexes the given number of document into the given index
# and randomly runs refresh, optimize and flush commands
def index_documents(es, index_name, type, num_docs):
logging.info('Indexing %s docs' % num_docs)
for id in range(0, num_docs):
es.index(index=index_name, doc_type=type, id=id, body={'string': str(random.randint(0, 100)),
'long_sort': random.randint(0, 100),
'double_sort' : float(random.randint(0, 100))})
if rarely():
es.indices.refresh(index=index_name)
if rarely():
es.indices.flush(index=index_name, force=frequently())
if rarely():
es.indices.optimize(index=index_name)
logging.info('Flushing index')
es.indices.flush(index=index_name)
def run_basic_asserts(es, index_name, type, num_docs):
count = es.count(index=index_name)['count']
assert count == num_docs, 'Expected %r but got %r documents' % (num_docs, count)
for _ in range(0, num_docs):
random_doc_id = random.randint(0, num_docs-1)
doc = es.get(index=index_name, doc_type=type, id=random_doc_id)
assert doc, 'Expected document for id %s but got %s' % (random_doc_id, doc)
assert_sort(es.search(index=index_name,
body={
'sort': [
{'double_sort': {'order': 'asc'}}
]
}))
assert_sort(es.search(index=index_name,
body={
'sort': [
{'long_sort': {'order': 'asc'}}
]
}))
def build_version(version_tuple):
return '.'.join([str(x) for x in version_tuple])
def build_tuple(version_string):
return [int(x) for x in version_string.split('.')]
def start_node(version, release_dir, data_dir, tcp_port, http_port):
logging.info('Starting node from %s on port %s/%s' % (release_dir, tcp_port, http_port))
cmd = [
os.path.join(release_dir, 'bin/elasticsearch'),
'-Des.path.data=%s' % data_dir,
'-Des.path.logs=logs',
'-Des.cluster.name=bwc_index_' + version,
'-Des.network.host=localhost',
'-Des.discovery.zen.ping.multicast.enabled=false',
'-Des.script.disable_dynamic=true',
'-Des.transport.tcp.port=%s' % tcp_port,
'-Des.http.port=%s' % http_port
]
if version.startswith('0.') or version == '1.0.0.Beta1':
cmd.append('-f') # version before 1.0 start in background automatically
return subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
def create_client(http_port, timeout=30):
logging.info('Waiting for node to startup')
for _ in range(0, timeout):
# TODO: ask Honza if there is a better way to do this?
try:
client = Elasticsearch([{'host': '127.0.0.1', 'port': http_port}])
client.cluster.health(wait_for_nodes=1)
client.count() # can we actually search or do we get a 503? -- anyway retry
return client
except (ConnectionError, TransportError):
pass
time.sleep(1)
assert False, 'Timed out waiting for node for %s seconds' % timeout
def generate_index(client):
client.indices.delete(index='test', ignore=404)
num_shards = random.randint(1, 10)
num_replicas = random.randint(0, 1)
logging.info('Create single shard test index')
client.indices.create(index='test', body={
'settings': {
'number_of_shards': 1,
'number_of_replicas': 0
}
})
health = client.cluster.health(wait_for_status='green', wait_for_relocating_shards=0)
assert health['timed_out'] == False, 'cluster health timed out %s' % health
num_docs = random.randint(10, 100)
index_documents(client, 'test', 'doc', num_docs)
logging.info('Running basic asserts on the data added')
run_basic_asserts(client, 'test', 'doc', num_docs)
def compress_index(version, tmp_dir, output_dir):
abs_output_dir = os.path.abspath(output_dir)
zipfile = os.path.join(abs_output_dir, 'index-%s.zip' % version)
if os.path.exists(zipfile):
os.remove(zipfile)
logging.info('Compressing index into %s', zipfile)
olddir = os.getcwd()
os.chdir(tmp_dir)
subprocess.check_call('zip -r %s *' % zipfile, shell=True)
os.chdir(olddir)
def parse_config():
parser = argparse.ArgumentParser(description='Builds an elasticsearch index for backwards compatibility tests')
parser.add_argument('version', metavar='X.Y.Z',
help='The elasticsearch version to build an index for')
parser.add_argument('--releases-dir', '-d', default='backwards', metavar='DIR',
help='The directory containing elasticsearch releases')
parser.add_argument('--output-dir', '-o', default='src/test/resources/org/elasticsearch/bwcompat',
help='The directory to write the zipped index into')
parser.add_argument('--tcp-port', default=9300, type=int,
help='The port to use as the minimum port for TCP communication')
parser.add_argument('--http-port', default=9200, type=int,
help='The port to use as the minimum port for HTTP communication')
cfg = parser.parse_args()
if cfg.version in BLACK_LIST:
entry = BLACK_LIST[cfg.version]
msg = 'Cannot use version %s\n reason: %s\n issue: %s' % \
(cfg.version, entry['reason'], entry['issue'])
parser.error(msg)
cfg.release_dir = os.path.join(cfg.releases_dir, 'elasticsearch-%s' % cfg.version)
if not os.path.exists(cfg.release_dir):
parser.error('ES version %s does not exist in %s' % (cfg.version, cfg.releases_dir))
if not os.path.exists(cfg.output_dir):
parser.error('Output directory does not exist: %s' % cfg.output_dir)
cfg.tmp_dir = tempfile.mkdtemp()
cfg.data_dir = os.path.join(cfg.tmp_dir, 'data')
logging.info('Temp data dir: %s' % cfg.data_dir)
return cfg
def main():
logging.basicConfig(format='[%(levelname)s] [%(asctime)s] %(message)s', level=logging.INFO,
datefmt='%Y-%m-%d %I:%M:%S %p')
logging.getLogger('elasticsearch').setLevel(logging.ERROR)
logging.getLogger('urllib3').setLevel(logging.WARN)
cfg = parse_config()
try:
node = start_node(cfg.version, cfg.release_dir, cfg.data_dir, cfg.tcp_port, cfg.http_port)
client = create_client(cfg.http_port)
generate_index(client)
finally:
if 'node' in vars():
logging.info('Shutting down node with pid %d', node.pid)
node.terminate()
compress_index(cfg.version, cfg.tmp_dir, cfg.output_dir)
if __name__ == '__main__':
try:
main()
except KeyboardInterrupt:
print('Caught keyboard interrupt, exiting...')
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