Hey Tom,
I’ve noticed while testing in Apache DRAT that the Lucene upgrades you did for the file manager regularly on the drat-vm Ubuntu box cause SIGSEV failures like the following: WARNING: No Metadata specified for product [TestMetReader.java] for required field [DataVersion]: Attempting to continue processing metadata # # A fatal error has been detected by the Java Runtime Environment: # # SIGSEGV (0xb) at pc=0x00007f5afcc030f7, pid=30823, tid=0x00007f5ab9d4f700 # # JRE version: Java(TM) SE Runtime Environment (8.0_151-b12) (build 1.8.0_151-b12) # Java VM: Java HotSpot(TM) 64-Bit Server VM (25.151-b12 mixed mode linux-amd64 compressed oops) # Problematic frame: # J 1360 C2 org.apache.lucene.store.ByteBufferIndexInput.readByte()B (126 bytes) @ 0x00007f5afcc030f7 [0x00007f5afcc030a0+0x57] # # Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again # # An error report file with more information is saved as: # /home/mattmann/drat/deploy/filemgr/bin/hs_err_pid30823.log Nov 16, 2017 11:25:40 PM org.apache.oodt.cas.filemgr.catalog.LuceneCatalog toDoc WARNING: No Metadata specified for product [TestMetReader.java] for required field [DataVersion]: Attempting to continue processing metadata Nov 16, 2017 11:25:40 PM org.apache.oodt.cas.filemgr.system.XmlRpcFileManager runExtractors INFO: Running Met Extractor: [org.apache.oodt.cas.filemgr.metadata.extractors.CoreMetExtractor] for product type: [GenericFile] Nov 16, 2017 11:25:40 PM org.apache.oodt.cas.filemgr.system.XmlRpcFileManager runExtractors INFO: Running Met Extractor: [org.apache.oodt.cas.filemgr.metadata.extractors.examples.MimeTypeExtractor] for product type: [GenericFile] Nov 16, 2017 11:25:40 PM org.apache.oodt.cas.filemgr.system.XmlRpcFileManager runExtractors INFO: Runn Steps to reproduce: 1. Clone and install Apache DRAT 1.0-SNAPSHOT from apache/drat: 2. Run DRAT on Apache OODT github https://github.com/apache/oodt.git or any repo with thousands of files using Proteus 3. Watch an error like the above appear consistently about half-way through crawling… There are some links online and this open LUCENE issue: https://issues.apache.org/jira/browse/LUCENE-6943 Tom can you help investigate? Cheers, Chris
