rdblue commented on a change in pull request #666: BaseRewriteManifests should
keep different manifest for different partitionSpec
URL: https://github.com/apache/incubator-iceberg/pull/666#discussion_r361014309
##########
File path: core/src/main/java/org/apache/iceberg/BaseRewriteManifests.java
##########
@@ -312,33 +311,62 @@ long getManifestTargetSizeBytes() {
}
class WriterWrapper {
- private ManifestWriter writer;
-
- synchronized void addEntry(ManifestEntry entry) {
- if (writer == null) {
- writer = newWriter();
- } else if (writer.length() >= getManifestTargetSizeBytes()) {
- close();
- writer = newWriter();
+ private final Map<Integer, ManifestWriter> manifestWritersBySpecId =
Collections.synchronizedMap(new HashMap<>());
Review comment:
We usually prefer Guava factory methods, like `Maps.newConcurrentMap()`.
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