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https://issues.apache.org/jira/browse/BEAM-7450?focusedWorklogId=259888&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-259888
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ASF GitHub Bot logged work on BEAM-7450:
----------------------------------------
Author: ASF GitHub Bot
Created on: 13/Jun/19 20:27
Start Date: 13/Jun/19 20:27
Worklog Time Spent: 10m
Work Description: jhalaria commented on pull request #8718: [BEAM-7450]
Add an unbounded HcatalogIO reader using splittable pardo
URL: https://github.com/apache/beam/pull/8718#discussion_r293562373
##########
File path:
sdks/java/io/hcatalog/src/test/java/org/apache/beam/sdk/io/hcatalog/HCatalogIOTest.java
##########
@@ -163,6 +179,55 @@ public void processElement(ProcessContext c) {
readAfterWritePipeline.run();
}
+ private Map<String, String> getPartitions() {
+ Map<String, String> partitions = new HashMap<>();
+ partitions.put("load_date", "2019-05-14T23:28:04.425Z");
+ partitions.put("product_type", "1");
+ return partitions;
+ }
+
+ /** Perform end-to-end test of Write-then-Read operation. */
+ @Test
+ @NeedsEmptyTestTablesForUnboundedReads
+ public void testWriteThenUnboundedReadSuccess() throws Exception {
+
+ defaultPipeline
+ .apply(Create.of(buildHCatRecords(TEST_RECORDS_COUNT)))
+ .apply(
+ HCatalogIO.write()
+
.withConfigProperties(getConfigPropertiesAsMap(service.getHiveConf()))
+ .withDatabase(TEST_DATABASE)
+ .withTable(TEST_TABLE)
+ .withPartition(getPartitions())
+ .withBatchSize(512L));
+ defaultPipeline.run();
+ final ImmutableList<String> partitions = ImmutableList.of("load_date",
"product_type");
+ final PCollection<HCatRecord> data =
+ readAfterWritePipeline
+ .apply(
+ "ReadData",
+ HCatalogIO.read()
+
.withConfigProperties(getConfigPropertiesAsMap(service.getHiveConf()))
+ .withDatabase(TEST_DATABASE)
+ .withPartitionCols(partitions)
+ .withTable(TEST_TABLE)
+ .withPollingInterval(Duration.millis(15000)))
Review comment:
It didn't earlier. Added the ability to specify a termination condition
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Issue Time Tracking
-------------------
Worklog Id: (was: 259888)
Time Spent: 7h 40m (was: 7.5h)
> Unbounded HCatalogIO Reader using splittable pardos
> ---------------------------------------------------
>
> Key: BEAM-7450
> URL: https://issues.apache.org/jira/browse/BEAM-7450
> Project: Beam
> Issue Type: New Feature
> Components: sdk-java-core
> Reporter: Ankit Jhalaria
> Assignee: Ankit Jhalaria
> Priority: Minor
> Time Spent: 7h 40m
> Remaining Estimate: 0h
>
> # Current version of HcatalogIO is a bounded source.
> # While migrating our jobs to aws, we realized that it would be helpful to
> have an unbounded hcat reader that can behave as an unbounded source and
> polls for new partitions as and when they become available.
> # I have used splittable pardo(s) to do this. There is a flag that can be
> set to treat this as a bounded source which will terminate if that flag is
> set.
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