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Set shards and replicas settings for index creation #1201

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Set shards and replicas settings for index creation #1201

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5 changes: 5 additions & 0 deletions config.yaml.example
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Original file line number Diff line number Diff line change
Expand Up @@ -55,3 +55,8 @@ writeback_index: elastalert_status
# sending the alert until this time period has elapsed
alert_time_limit:
days: 2

# Set shards and replicas settings for index creation
#index_settings:
# shards: 1
# replicas: 0
13 changes: 12 additions & 1 deletion elastalert/create_index.py
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Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,7 @@ def main():
data = yaml.load(config_file)
host = args.host if args.host else data.get('es_host')
port = args.port if args.port else data.get('es_port')
index_settings = data.get('index_settings')
username = data.get('es_username')
password = data.get('es_password')
url_prefix = args.url_prefix if args.url_prefix is not None else data.get('es_url_prefix', '')
Expand All @@ -67,6 +68,7 @@ def main():
else:
username = None
password = None
index_settings = None
aws_region = args.aws_region
host = args.host if args.host else raw_input('Enter Elasticsearch host: ')
port = args.port if args.port else int(raw_input('Enter Elasticsearch port: '))
Expand Down Expand Up @@ -103,6 +105,15 @@ def main():
url_prefix=url_prefix,
send_get_body_as=send_get_body_as)

if index_settings is not None:
settings = {'settings': {'index': {}}}
if index_settings["shards"] is not None:
settings["settings"]["index"]["number_of_shards"] = index_settings["shards"]
if index_settings["replicas"] is not None:
settings["settings"]["index"]["number_of_replicas"] = index_settings["replicas"]
else:
settings = None

silence_mapping = {'silence': {'properties': {'rule_name': {'index': 'not_analyzed', 'type': 'string'},
'until': {'type': 'date', 'format': 'dateOptionalTime'},
'@timestamp': {'format': 'dateOptionalTime', 'type': 'date'}}}}
Expand Down Expand Up @@ -132,7 +143,7 @@ def main():
print('Index ' + index + ' already exists. Skipping index creation.')
return None

es.indices.create(index)
es.indices.create(index=index, body=settings)
# To avoid a race condition. TODO: replace this with a real check
time.sleep(2)
es.indices.put_mapping(index=index, doc_type='elastalert', body=es_mapping)
Expand Down