使用脫機graph啓動NEO4j社區實例時出錯db.d

Question

我的圖有大約2700萬個關係和1500萬個節點。 當我嘗試與使用Neo4j的導入工具創建的graph.db數據庫開始Neo4j的情況下，我得到以下錯誤：

sudo service neo4j status 
● neo4j.service - Neo4j Graph Database 
Loaded: loaded (/lib/systemd/system/neo4j.service; disabled; vendor preset: enabled) 
Active: inactive (dead) 

Mai 29 17:14:55 ammer-XPS-15-9550 neo4j[21230]:   at 

org.neo4j.kernel.internal.StoreLocker.checkLock(StoreLocker.java:75) 
Mai 29 17:14:55 ammer-XPS-15-9550 neo4j[21230]:   ... 13 more 
Mai 29 17:14:55 ammer-XPS-15-9550 neo4j[21230]: 2017-05-29 
15:14:55.089+0000 INFO Neo4j Server shutdown initiated by request 

Mai 29 17:14:55 ammer-XPS-15-9550 systemd[1]: neo4j.service: Main 
exited, code=exited, status=1/FAILURE 

Mai 29 17:14:55 ammer-XPS-15-9550 systemd[1]: neo4j.service: Unit entered failed state. 

Mai 29 17:14:55 ammer-XPS-15-9550 systemd[1]: neo4j.service: Failed with result 'exit-code'. 

Mai 29 17:14:55 ammer-XPS-15-9550 systemd[1]: neo4j.service: Service hold-off time over, scheduling restart. 

Mai 29 17:14:55 ammer-XPS-15-9550 systemd[1]: Stopped Neo4j Graph Database. 

Mai 29 17:14:55 ammer-XPS-15-9550 systemd[1]: neo4j.service: Start request repeated too quickly. 

    Mai 29 17:14:55 ammer-XPS-15-9550 systemd[1]: Failed to start Neo4j Graph Database. 

Answer 1

嘗試在neo4j.conf取消註釋這一行，因爲我認爲Neo4j的導入工具尚未升級到支持3.2.x版本。

# Enable this to be able to upgrade a store from an older version. 
#dbms.allow_format_migration=true