Ahoy ahoy! I've run into the dreaded OOM error with MMapDirectory on a 23G cfs compound index segment file. The stack trace looks pretty much like every other trace I've found when searching for OOM & "map failed"[1]. My configuration follows:
Solr 1.4.1/Lucene 2.9.3 (plus SOLR-1969<https://issues.apache.org/jira/browse/SOLR-1969> ) CentOS 4.9 (Final) Linux 2.6.9-100.ELsmp x86_64 yada yada yada Java SE (build 1.6.0_21-b06) Hotspot 64-bit Server VM (build 17.0-b16, mixed mode) ulimits: core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited file size (blocks, -f) unlimited pending signals (-i) 1024 max locked memory (kbytes, -l) 32 max memory size (kbytes, -m) unlimited open files (-n) 256000 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 1064959 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited Any suggestions? Thanks in advance, Rich [1] ... java.io.IOException: Map failed at sun.nio.ch.FileChannelImpl.map(Unknown Source) at org.apache.lucene.store.MMapDirectory$MMapIndexInput.<init>(Unknown Source) at org.apache.lucene.store.MMapDirectory$MMapIndexInput.<init>(Unknown Source) at org.apache.lucene.store.MMapDirectory.openInput(Unknown Source) at org.apache.lucene.index.SegmentReader$CoreReaders.<init>(Unknown Source) at org.apache.lucene.index.SegmentReader.get(Unknown Source) at org.apache.lucene.index.SegmentReader.get(Unknown Source) at org.apache.lucene.index.DirectoryReader.<init>(Unknown Source) at org.apache.lucene.index.ReadOnlyDirectoryReader.<init>(Unknown Source) at org.apache.lucene.index.DirectoryReader$1.doBody(Unknown Source) at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(Unknown Source) at org.apache.lucene.index.DirectoryReader.open(Unknown Source) at org.apache.lucene.index.IndexReader.open(Unknown Source) ... Caused by: java.lang.OutOfMemoryError: Map failed at sun.nio.ch.FileChannelImpl.map0(Native Method) ...
