python - 如何使用python客户端获取所有在Elasticsearch索引下的文档？

Question

我正在尝试使用python客户端获取所有索引文档，但结果仅显示第一个文档
这是我的python代码:

res = es.search(index="92c603b3-8173-4d7a-9aca-f8c115ff5a18", doc_type="doc", body = {
'size' : 10000,
'query': {
    'match_all' : {}
}
})
print("%d documents found" % res['hits']['total'])
data = [doc for doc in res['hits']['hits']]
for doc in data:
    print(doc)
    return "%s %s %s" % (doc['_id'], doc['_source']['0'], doc['_source']['5'])

Answer 1

默认情况下，Elasticsearch仅检索10个文档。您可以更改此行为-doc here。分页的最佳实践是 search after query 和 scroll query 。这取决于您的需求。请阅读此答案Elastic search not giving data with big number for page size

要显示所有结果:

for doc in res['hits']['hits']:
    print doc['_id'], doc['_source']