"HttpException: 500 - Read-only block manager" 使用 Apache Jena 将数据加载到 Fuseki 时

Question

我无法让 google 或 Whosebug 告诉我如何从 ttl 文件加载到我的 Fuseki 服务器中一个命名的 grapah。

我的Java函数是

public static void uploadTtl(String ttlFileLocation, String graphname) {
    RDFConnection conn = RDFConnectionFactory.connect(serviceURL);
    if (graphname == null)
        conn.load(ttlFileLocation);
    else
        conn.load(graphname, ttlFileLocation);
    conn.close();
}

如果图名=空；然后加载正常

如果图名 = "图名"; 那么

Exception in thread "main" org.apache.jena.atlas.web.HttpException: 500 - Read-only block manager
    at org.apache.jena.riot.web.HttpOp.exec(HttpOp.java:1093)
    at org.apache.jena.riot.web.HttpOp.execHttpPost(HttpOp.java:721)
    at org.apache.jena.riot.web.HttpOp.execHttpPost(HttpOp.java:665)
    at org.apache.jena.rdfconnection.RDFConnectionRemote.lambda$doPutPost(RDFConnectionRemote.java:320)
    at org.apache.jena.rdfconnection.RDFConnectionRemote.exec(RDFConnectionRemote.java:518)
    at org.apache.jena.rdfconnection.RDFConnectionRemote.doPutPost(RDFConnectionRemote.java:315)
    at org.apache.jena.rdfconnection.RDFConnectionRemote.upload(RDFConnectionRemote.java:297)
    at org.apache.jena.rdfconnection.RDFConnectionRemote.load(RDFConnectionRemote.java:240)
    at modelDTriplestore.MdFuseki_uploadFile.uploadTtl(MdFuseki_uploadFile.java:36)
    at modelDTriplestore.MdFuseki_uploadFile.main(MdFuseki_uploadFile.java:15)

什么是例外？

conn.load(graphname, ttlFileLocation);

环境详细信息包括： Fuseki 版本 3.14.0 运行里面 stain/jena-fuseki docker 图片爪哇 8 POM

<dependency>
    <groupId>org.apache.jena</groupId>
    <artifactId>apache-jena-libs</artifactId>
    <type>pom</type>
    <version>3.17.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.jena/jena -->
<dependency>
    <groupId>org.apache.jena</groupId>
    <artifactId>jena-shaded-guava</artifactId>
    <version>3.17.0</version>
    <type>pom</type>
</dependency>

Answer 1

调用代码没问题

来自服务器并由客户端传递的 500 错误。

服务器日志文件将包含详细信息，但看起来服务器运行在 TDB 数据库的只读文件区域。

"HttpException: 500 - Read-only block manager" 使用 Apache Jena 将数据加载到 Fuseki 时

"HttpException: 500 - Read-only block manager" when loading data using Apache Jena into Fuseki

jena

fuseki