On Wed, 2022-12-21 at 14:18 +0000, Andy Seaborne wrote: > On 21/12/2022 11:20, Simon Bin wrote: > > Failed to LOAD > > If you search for the string which has both Segment and Offset in it, > > It is printed when OutOfMemoryError is signalled: > > catch (IOException ex) { > if ( ex.getCause() instanceof java.lang.OutOfMemoryError ) > throw new FileException("BlockMgrMapped.segmentAllocate: > Segment > = " + seg + " : Offset = " + offset); > > > so heap exhaustion (but the exception is used for an mmap file > resource > limit) > > (1,795,162,112 also happens to be close to the 32bit JVM limit.)
Thanks for the response, so I guess our Fuseki is running out of memory :-( For the record, this is on 64bit with -Xmx32G + TDB2 (250G system memory) but I guess there are some runaway memory that Fuseki cannot recover so ultimately we run into this problem (after a while)