hililiwei commented on a change in pull request #3784:
URL: https://github.com/apache/iceberg/pull/3784#discussion_r788753044
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File path: orc/src/main/java/org/apache/iceberg/orc/OrcFileAppender.java
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@@ -99,9 +104,27 @@ public Metrics metrics() {
@Override
public long length() {
- Preconditions.checkState(isClosed,
- "Cannot return length while appending to an open file.");
- return file.toInputFile().getLength();
+ if (isClosed) {
+ return file.toInputFile().getLength();
+ }
+ if (this.treeWriter == null) {
+ throw new RuntimeException("Can't get the length!");
+ }
+ long estimateMemory = this.treeWriter.estimateMemory();
+
+ long dataLength = 0;
+ try {
+ List<StripeInformation> stripes = writer.getStripes();
+ if (!stripes.isEmpty()) {
+ StripeInformation stripeInformation = stripes.get(stripes.size() - 1);
+ dataLength = stripeInformation != null ? stripeInformation.getOffset()
+ stripeInformation.getLength() : 0;
+ }
+ } catch (IOException e) {
+ throw new UncheckedIOException(String.format("Can't get stripes from
file %s", file.location()), e);
+ }
+
+ // This value is estimated, including the default max bytes in batch(not
actual).
+ return dataLength + estimateMemory + VectorizedRowBatch.DEFAULT_BYTES;
Review comment:
I added the default byte size of batch instead of trying to calculate
its actual size. @rdblue Is this feasible?
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