def create_default_index_and_alias(es_client, alias_name, index_body=None):
default_alias_name = alias_name
logger.info("Default alias name: {}".format(default_alias_name))
physical_index = get_index_from_alias(es_client, default_alias_name)
if not physical_index:
with Timer('Creating Index and Alias', logger=logger.info):
index_name = new_index_from_name(default_alias_name)
es_client.indices.create(index_name, body=index_body)
es_client.indices.put_alias(default_alias_name, index_name)
es_client.indices.put_alias(default_alias_name + ".write", index_name)
else:
logger.info("Alias {} exist mapped to {}".format(alias_name, physical_index))
def create_new_write_index(es_client, alias_name, new_index_config=None):
with Timer('Create Write Index and change Alias', logger=logger.info):
write_alias = alias_name + ".write"
#Get the current Real Index for the write alias
current_indexes = get_index_from_alias(es_client, write_alias)
current_index = current_indexes[0]
#Create a new empty index for writes
new_index_name = new_index_from_name(alias_name)
es_client.indices.create(new_index_name, new_index_config)
es_client.indices.flush()
#Change the write alias to the new index for writes
es_client.indices.update_aliases({"actions": [
{"remove": {"index": current_index, "alias": write_alias}},
{"add": {"index": new_index_name, "alias": write_alias}}
]})
es_client.indices.flush()
