mongo 分片

# -*- coding: utf-8 -*-
from pymongo import MongoClient

mongodb_uri = "mongodb://user:password@127.0.0.1:27017/?authSource=admin"

client = MongoClient(mongodb_uri)

for db_name in [
    "paper"
]:
    db = client[db_name]
    paper_name_list = list(paper_db.list_collection_names())
    paper_name_list.sort()
    for paper_name in paper_name_list:
        print(paper_name)
        col = db[paper_name]
        index_info = col.index_information()
        client.admin.command("shardCollection", f"{db.name}.{paper_name}", key={"_id": 1})

db.createCollection("bioone");

db.getCollection("bioone").createIndex({
    Year: NumberInt("1")
}, {
    name: "Year_1"
});

db.createCollection("paper");

db.getCollection("paper").createIndex({
    "author.id": NumberInt("1")
}, {
    name: "author_id_index"
});

db.getCollection("paper").createIndex({
    "affiliation.id": NumberInt("1")
}, {
    name: "affiliation_id_index"
});

db.getCollection("paper").createIndex({
    "first_author.id": NumberInt("1")
}, {
    name: "first_author_id_index",
    partialFilterExpression: {
        "first_author.id": {
            $gt: NumberInt("0")
        }
    }
});

db.getCollection("paper").createIndex({
    "first_affiliation.id": NumberInt("1")
}, {
    name: "first_affiliation_id_index",
    partialFilterExpression: {
        "first_affiliation.id": {
            $gt: NumberInt("0")
        }
    }
});

db.getCollection("paper").createIndex({
    "reference_list": NumberInt("1")
}, {
    name: "reference_index"
});

db.getCollection("paper").createIndex({
    "venue.id": NumberInt("1")
}, {
    name: "venue_id_index",
    partialFilterExpression: {
        "venue.id": {
            $gt: NumberInt("0")
        }
    }
});

db.getCollection("paper").createIndex({
    "journal.id": NumberInt("1")
}, {
    name: "journal_id_index",
    partialFilterExpression: {
        "journal.id": {
            $gt: NumberInt("0")
        }
    }
});

db.getCollection("paper").createIndex({
    "conference_series.id": NumberInt("1")
}, {
    name: "conference_series_id_index",
    partialFilterExpression: {
        "conference_series.id": {
            $gt: NumberInt("0")
        }
    }
});

db.getCollection("paper").createIndex({
    "conference_instance.id": NumberInt("1")
}, {
    name: "conference_instance_id_index",
    partialFilterExpression: {
        "conference_instance.id": {
            $gt: NumberInt("0")
        }
    }
});

db.getCollection("paper").createIndex({
    "field.id": NumberInt("1"),
    "analysis.citation_count": NumberInt("1")
}, {
    name: "field_id_index"
});