当我运行以下命令来更新Solr索引时：
sh [dspace]/bin/dspace index-discovery
其中
[dspace]是DSpace的安装目录，出现以下错误：Exception: Expected mime type application/octet-stream but got
text/html. <!doctype html><html lang="en"><head><title>HTTP Status 500 – Internal Server Error</title><style type="text/css">h1 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:22px;} h2 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:16px;} h3 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:14px;} body {font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;} b {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;} p {font-family:Tahoma,Arial,sans-serif;background:white;color:black;font-size:12px;} a {color:black;} a.name {color:black;} .line {height:1px;background-color:#525D76;border:none;}</style></head><body><h1>HTTP Status 500 – Internal Server Error</h1><hr class="line" /><p><b>Type</b> Status Report</p><p><b>Message</b> {msg=SolrCore 'search' is not available due to init failure: Error opening new searcher,trace=org.apache.solr.common.SolrException: SolrCore 'search' is not available due to init failure: Error opening new searcher
at org.apache.solr.core.CoreContainer.getCore(CoreContainer.java:745)
...
Caused by: org.apache.solr.common.SolrException: Error opening new searcher
at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1565)
at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1677)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:845)
... 8 more
.
.
.
Caused by: java.nio.file.AccessDeniedException: ....solr/search/data/index/segments_p
at java.base/sun.nio.fs.UnixException.translateToIOException(UnixException.java:90)
最佳答案
将错误堆栈跟踪转换为HTML之后，我发现文件[dspace]/solr/search/data/index/segments_p的权限阻止该进程对其进行访问。该文件的所有者为root，我以非root用户身份使用Eclipse运行Tomcat，因此我将自己作为文件的所有者：
chown myself:myself [dspace]/solr/search/data/index/segments_p
然后重新启动Tomcat，然后重新运行命令：
sh [dspace]/bin/dspace index-discovery
做得完美。
关于java - 更新DSpace Solr索引时遇到此错误:由于初始化失败，SolrCore'搜索'不可用，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/57541514/