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497f77ae10
@appinteractive thanks for pointing out `split`. You just saved me some days of work to refactor the import statements to use CSV instead of JSON files. @Tirokk when I enter `:schema` in Neo4J web UI, I see the following: ``` :schema Indexes ON :Badge(id) ONLINE ON :Category(id) ONLINE ON :Comment(id) ONLINE ON :Post(id) ONLINE ON :Tag(id) ONLINE ON :User(id) ONLINE No constraints ``` So I temporarily removed the unique constraints on `slug` and added plain indices on `id` for all relevant node types. We cannot omit the `:Label` unfortunately, neo4j does not allow this. So I had to add all indices for all known node labels instead. With indices the import finishes in: ``` Time elapsed: 351 seconds ``` 🎉 @appinteractive when I keep the unique indices on slug, I get an error during import that a node with label `:User` and slug `tobias` already exists. Ie. we have unqiue constraint violations in our production data. @mattwr18 @ulfgebhardt @ogerly I started the application on my machine on the production data and it turns out that the index page http://localhost:3000/ takes way to long. Visiting my profile page at http://localhost:3000/profile/5b1693daf850c11207fa6109/robert-schafer is fine, though. Even pagination works. When I visit a post page with not too many comments, the application is fast enough, too: http://localhost:3000/post/5bbf49ebc428ea001c7ca89c/neues-video-format-human-connection-tech-news
16 lines
538 B
SQL
16 lines
538 B
SQL
CALL apoc.load.json('file:/tmp/mongo-export/splits/current-chunk.json') YIELD value as json
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MERGE (comment:Comment {id: json._id["$oid"]})
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ON CREATE SET
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comment.content = json.content,
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comment.contentExcerpt = json.contentExcerpt,
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comment.deleted = json.deleted,
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comment.disabled = false
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WITH comment, json, json.contributionId as postId
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MATCH (post:Post {id: postId})
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WITH comment, post, json.userId as userId
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MATCH (author:User {id: userId})
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MERGE (comment)-[:COMMENTS]->(post)
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MERGE (author)-[:WROTE]->(comment)
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;
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