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HBASE-22699 refactor isMetaClearingException (#436) 

Signed-off-by: Duo Zhang <zhangduo@apache.org>
This commit is contained in:
johnhomsea 2019-08-12 15:57:21 +08:00 committed by Duo Zhang
parent c9d02f9535
commit a0d5627a33
1 changed files with 15 additions and 11 deletions
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26
hbase-client/src/main/java/org/apache/hadoop/hbase/exceptions/ClientExceptionsUtil.java
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@ -32,7 +32,6 @@ import java.util.concurrent.TimeoutException;
import org.apache.hadoop.hbase.CallDroppedException;
import org.apache.hadoop.hbase.CallQueueTooBigException;
import org.apache.hadoop.hbase.DoNotRetryIOException;
import org.apache.hadoop.hbase.MultiActionResultTooLarge;
import org.apache.hadoop.hbase.NotServingRegionException;
import org.apache.hadoop.hbase.RegionTooBusyException;
import org.apache.hadoop.hbase.RetryImmediatelyException;
@ -59,18 +58,23 @@ public final class ClientExceptionsUtil {
if (cur == null) {
return true;
}
return !isSpecialException(cur) || (cur instanceof RegionMovedException)
|| cur instanceof NotServingRegionException;
return !regionDefinitelyOnTheRegionServerException(cur);
}
public static boolean isSpecialException(Throwable cur) {
return (cur instanceof RegionMovedException || cur instanceof RegionOpeningException
|| cur instanceof RegionTooBusyException || cur instanceof RpcThrottlingException
|| cur instanceof MultiActionResultTooLarge || cur instanceof RetryImmediatelyException
|| cur instanceof CallQueueTooBigException || cur instanceof CallDroppedException
|| cur instanceof NotServingRegionException || cur instanceof RequestTooBigException);
private static boolean regionDefinitelyOnTheRegionServerException(Throwable t) {
return (t instanceof RegionTooBusyException || t instanceof RpcThrottlingException
|| t instanceof RetryImmediatelyException || t instanceof CallQueueTooBigException
|| t instanceof CallDroppedException || t instanceof NotServingRegionException
|| t instanceof RequestTooBigException);
}
/**
* This function is the alias of regionDefinitelyOnTheRegionServerException,
* whose name is confusing in the function findException().
*/
private static boolean matchExceptionWeCare(Throwable t) {
return regionDefinitelyOnTheRegionServerException(t);
}
/**
* Look for an exception we know in the remote exception:
@ -87,7 +91,7 @@ public final class ClientExceptionsUtil {
}
Throwable cur = (Throwable) exception;
while (cur != null) {
if (isSpecialException(cur)) {
if (matchExceptionWeCare(cur)) {
return cur;
}
if (cur instanceof RemoteException) {
@ -95,7 +99,7 @@ public final class ClientExceptionsUtil {
cur = re.unwrapRemoteException();
// unwrapRemoteException can return the exception given as a parameter when it cannot
// unwrap it. In this case, there is no need to look further
// unwrap it. In this case, there is no need to look further
// noinspection ObjectEquality
if (cur == re) {
return cur;