我有一个问题，我认为与这里描述的问题相同:

打开lucene索引时出错：映射失败

然而，解决方案不适用于这种情况，因此我将提供更多细节并再次询问。

索引是使用 Solr 5.3 创建的

导致异常的代码行是：

IndexReader indexReader = DirectoryReader.open(FSDirectory.open(Paths.get("the_path")));

异常堆栈跟踪为：

Exception in thread "main" java.io.IOException: Map failed: MMapIndexInput(path="/mnt/fastdata/ac1zz/JATE/solr-5.3.0/server/solr/jate/data_aclrd/index/_5t.tvd") [this may be caused by lack of enough unfragmented virtual address space or too restrictive virtual memory limits enforced by the operating system, preventing us to map a chunk of 434505698 bytes. Please review 'ulimit -v', 'ulimit -m' (both should return 'unlimited'), and 'sysctl vm.max_map_count'. More information: http://blog.thetaphi.de/2012/07/use-lucenes-mmapdirectory-on-64bit.html]
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:907)
at org.apache.lucene.store.MMapDirectory.map(MMapDirectory.java:265)
at org.apache.lucene.store.MMapDirectory.openInput(MMapDirectory.java:239)
at org.apache.lucene.codecs.compressing.CompressingTermVectorsReader.<init>(CompressingTermVectorsReader.java:144)
at org.apache.lucene.codecs.compressing.CompressingTermVectorsFormat.vectorsReader(CompressingTermVectorsFormat.java:91)
at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:120)
at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:65)
at org.apache.lucene.index.StandardDirectoryReader$1.doBody(StandardDirectoryReader.java:58)
at org.apache.lucene.index.StandardDirectoryReader$1.doBody(StandardDirectoryReader.java:50)
at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:731)
at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:50)
at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:63)
at uk.ac.shef.dcs.jate.app.AppATTF.extract(AppATTF.java:39)
at uk.ac.shef.dcs.jate.app.AppATTF.main(AppATTF.java:33)

异常消息中建议的解决方案在这种情况下不起作用，因为我在服务器上运行应用程序，而我没有权限更改这些。

即

ulimit -v unlimited

打印:"-bash: ulimit:虚拟内存:无法修改限制:不允许操作"

和sysctl-wvm.max_mp_count=10000000

给出："错误：拒绝对密钥'vm.max_map_count'的权限"

无论如何，我能解决这个问题吗？

谢谢