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PHOENIX-7826 MetadataGetTableReadLockIT wait for coprocessor swap to land #2443

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PHOENIX-7826 MetadataGetTableReadLockIT wait for coprocessor swap to land #2443

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20 changes: 20 additions & 0 deletions phoenix-core/src/it/java/org/apache/phoenix/end2end/MetadataGetTableReadLockIT.java
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,8 @@
import java.util.List;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.hadoop.hbase.regionserver.Region;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.phoenix.coprocessor.MetaDataEndpointImpl;
Expand Down Expand Up @@ -72,6 +74,7 @@ public void testBlockedReadDoesNotBlockAnotherRead() throws Exception {
BlockingMetaDataEndpointImpl.setSleepSignal(sleepSignal);
BlockingMetaDataEndpointImpl.setSleepDuration(SLEEP_DURATION);
TestUtil.addCoprocessor(conn, "SYSTEM.CATALOG", BlockingMetaDataEndpointImpl.class);
waitForCoprocessorOnSystemCatalog(BlockingMetaDataEndpointImpl.class);

// start thread-1 and wait for signal before it starts sleeping
Thread t1 = getQueryThread(tableName);
Expand All @@ -94,6 +97,23 @@ public void testBlockedReadDoesNotBlockAnotherRead() throws Exception {
}
}

private static void waitForCoprocessorOnSystemCatalog(Class<?> coprocessorClass) throws Exception {
final TableName sysCatalog = TableName.valueOf("SYSTEM.CATALOG");
utility.waitFor(10000, 100, () -> {
List<HRegion> regions = utility.getHBaseCluster().getRegions(sysCatalog);
if (regions.isEmpty()) {
return false;
}
for (HRegion region : regions) {
if (region.getCoprocessorHost()
.findCoprocessor(coprocessorClass.getName()) == null) {
return false;
}
}
return true;
});
}

private static Thread getQueryThread(String tableName) {
Runnable runnable = () -> {
try (Connection conn1 = DriverManager.getConnection(getUrl())) {
Expand Down