Examples with FlowControlEventStats com.google.api.gax.batching.FlowControlEventStats used on opensource projects

Example 1 with FlowControlEventStats

use of com.google.api.gax.batching.FlowControlEventStats in project java-bigtable by googleapis.

the class BulkMutateIT method test.

@Test(timeout = 60 * 1000)
public void test() throws IOException, InterruptedException {
    BigtableDataSettings settings = testEnvRule.env().getDataClientSettings();
    String rowPrefix = UUID.randomUUID().toString();
    // Set target latency really low so it'll trigger adjusting thresholds
    BigtableDataSettings.Builder builder = settings.toBuilder().enableBatchMutationLatencyBasedThrottling(2L);
    try (BigtableDataClient client = BigtableDataClient.create(builder.build());
        BatcherImpl<RowMutationEntry, Void, BulkMutation, Void> batcher = (BatcherImpl<RowMutationEntry, Void, BulkMutation, Void>) client.newBulkMutationBatcher(testEnvRule.env().getTableId())) {
        FlowControlEventStats events = batcher.getFlowController().getFlowControlEventStats();
        long initialThreashold = Objects.requireNonNull(batcher.getFlowController().getCurrentElementCountLimit());
        assertThat(batcher.getFlowController().getCurrentElementCountLimit()).isNotEqualTo(batcher.getFlowController().getMinElementCountLimit());
        assertThat(batcher.getFlowController().getCurrentElementCountLimit()).isNotEqualTo(batcher.getFlowController().getMaxElementCountLimit());
        String familyId = testEnvRule.env().getFamilyId();
        long initial = batcher.getFlowController().getCurrentElementCountLimit();
        for (long i = 0; i < initial * 3; i++) {
            String key = rowPrefix + "test-key" + i;
            batcher.add(RowMutationEntry.create(key).setCell(familyId, "qualifier", i));
        }
        batcher.flush();
        assertThat(events.getLastFlowControlEvent()).isNotNull();
        // Verify that the threshold is adjusted
        assertThat(batcher.getFlowController().getCurrentElementCountLimit()).isNotEqualTo(initialThreashold);
        // Query a key to make sure the write succeeded
        Row row = testEnvRule.env().getDataClient().readRowsCallable().first().call(Query.create(testEnvRule.env().getTableId()).rowKey(rowPrefix + "test-key" + initial));
        assertThat(row.getCells()).hasSize(1);
    }
}