114 lines
4.2 KiB
Python
114 lines
4.2 KiB
Python
import create_bwc_index
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import logging
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import os
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import random
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import shutil
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import subprocess
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import sys
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import tempfile
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def fetch_version(version):
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logging.info('fetching ES version %s' % version)
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if subprocess.call([sys.executable, os.path.join(os.path.split(sys.argv[0])[0], 'get-bwc-version.py'), version]) != 0:
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raise RuntimeError('failed to download ES version %s' % version)
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def main():
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'''
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Creates a static back compat index (.zip) with mixed 0.20 (Lucene 3.x) and 0.90 (Lucene 4.x) segments.
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'''
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logging.basicConfig(format='[%(levelname)s] [%(asctime)s] %(message)s', level=logging.INFO,
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datefmt='%Y-%m-%d %I:%M:%S %p')
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logging.getLogger('elasticsearch').setLevel(logging.ERROR)
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logging.getLogger('urllib3').setLevel(logging.WARN)
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tmp_dir = tempfile.mkdtemp()
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try:
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data_dir = os.path.join(tmp_dir, 'data')
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logging.info('Temp data dir: %s' % data_dir)
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first_version = '0.20.6'
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second_version = '0.90.6'
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index_name = 'index-%s-and-%s' % (first_version, second_version)
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# Download old ES releases if necessary:
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release_dir = os.path.join('backwards', 'elasticsearch-%s' % first_version)
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if not os.path.exists(release_dir):
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fetch_version(first_version)
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node = create_bwc_index.start_node(first_version, release_dir, data_dir, cluster_name=index_name)
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client = create_bwc_index.create_client()
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# Creates the index & indexes docs w/ first_version:
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create_bwc_index.generate_index(client, first_version, index_name)
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# Make sure we write segments:
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flush_result = client.indices.flush(index=index_name)
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if not flush_result['ok']:
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raise RuntimeError('flush failed: %s' % str(flush_result))
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segs = client.indices.segments(index=index_name)
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shards = segs['indices'][index_name]['shards']
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if len(shards) != 1:
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raise RuntimeError('index should have 1 shard but got %s' % len(shards))
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first_version_segs = shards['0'][0]['segments'].keys()
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create_bwc_index.shutdown_node(node)
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print('%s server output:\n%s' % (first_version, node.stdout.read().decode('utf-8')))
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node = None
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release_dir = os.path.join('backwards', 'elasticsearch-%s' % second_version)
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if not os.path.exists(release_dir):
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fetch_version(second_version)
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# Now also index docs with second_version:
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node = create_bwc_index.start_node(second_version, release_dir, data_dir, cluster_name=index_name)
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client = create_bwc_index.create_client()
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# If we index too many docs, the random refresh/flush causes the ancient segments to be merged away:
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num_docs = 10
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create_bwc_index.index_documents(client, index_name, 'doc', num_docs)
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# Make sure we get a segment:
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flush_result = client.indices.flush(index=index_name)
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if not flush_result['ok']:
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raise RuntimeError('flush failed: %s' % str(flush_result))
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# Make sure we see mixed segments (it's possible Lucene could have "accidentally" merged away the first_version segments):
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segs = client.indices.segments(index=index_name)
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shards = segs['indices'][index_name]['shards']
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if len(shards) != 1:
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raise RuntimeError('index should have 1 shard but got %s' % len(shards))
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second_version_segs = shards['0'][0]['segments'].keys()
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#print("first: %s" % first_version_segs)
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#print("second: %s" % second_version_segs)
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for segment_name in first_version_segs:
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if segment_name in second_version_segs:
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# Good: an ancient version seg "survived":
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break
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else:
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raise RuntimeError('index has no first_version segs left')
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for segment_name in second_version_segs:
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if segment_name not in first_version_segs:
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# Good: a second_version segment was written
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break
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else:
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raise RuntimeError('index has no second_version segs left')
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create_bwc_index.shutdown_node(node)
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print('%s server output:\n%s' % (second_version, node.stdout.read().decode('utf-8')))
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node = None
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create_bwc_index.compress_index('%s-and-%s' % (first_version, second_version), tmp_dir, 'src/test/resources/org/elasticsearch/rest/action/admin/indices/upgrade')
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finally:
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if node is not None:
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create_bwc_index.shutdown_node(node)
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shutil.rmtree(tmp_dir)
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if __name__ == '__main__':
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main()
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