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authorJordan Henderson <jhenderson@hdfgroup.org>2018-07-04 02:09:19 (GMT)
committerJordan Henderson <jhenderson@hdfgroup.org>2018-07-04 02:09:19 (GMT)
commitef10aa6211779b4f99606243651adcd716904f4e (patch)
tree8e8ddff4a922ff83feee8e3c71ca1683801ea426
parent6190641722e194f8827a5a68dce72dadac4b8157 (diff)
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Fix for HDFFV-10509
-rw-r--r--src/H5Dchunk.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/src/H5Dchunk.c b/src/H5Dchunk.c
index 7216c49..d1528eb 100644
--- a/src/H5Dchunk.c
+++ b/src/H5Dchunk.c
@@ -2933,8 +2933,21 @@ H5D__chunk_lookup(const H5D_t *dset, const hsize_t *scaled,
H5F_set_coll_md_read(idx_info.f, temp_cmr);
#endif /* H5_HAVE_PARALLEL */
- /* Cache the information retrieved */
- H5D__chunk_cinfo_cache_update(&dset->shared->cache.chunk.last, udata);
+ /*
+ * Cache the information retrieved.
+ *
+ * Note that if we are writing to the dataset in parallel and filters
+ * are involved, we skip caching this information as it is highly likely
+ * that the chunk information will be invalidated as a result of the
+ * filter operation (e.g. the chunk gets re-allocated to a different
+ * address in the file and/or gets re-allocated with a different size).
+ * If we were to cache this information, subsequent reads/writes would
+ * retrieve the invalid information and cause a variety of issues.
+ */
+#ifdef H5_HAVE_PARALLEL
+ if ( !((H5F_INTENT(dset->oloc.file) & H5F_ACC_RDWR) && dset->shared->dcpl_cache.pline.nused) )
+#endif
+ H5D__chunk_cinfo_cache_update(&dset->shared->cache.chunk.last, udata);
} /* end if */
} /* end else */