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Posted to commits@phoenix.apache.org by pb...@apache.org on 2018/11/27 15:18:32 UTC
[22/28] phoenix git commit: PHOENIX-5005 Server-side delete /
upsert-select potentially blocked after a split
PHOENIX-5005 Server-side delete / upsert-select potentially blocked after a split
Project: http://git-wip-us.apache.org/repos/asf/phoenix/repo
Commit: http://git-wip-us.apache.org/repos/asf/phoenix/commit/b20b21d1
Tree: http://git-wip-us.apache.org/repos/asf/phoenix/tree/b20b21d1
Diff: http://git-wip-us.apache.org/repos/asf/phoenix/diff/b20b21d1
Branch: refs/heads/4.x-cdh5.15
Commit: b20b21d101bf95e42c21350b778ebd5352be37f8
Parents: dd81989
Author: Vincent Poon <vi...@apache.org>
Authored: Thu Nov 8 23:38:20 2018 +0000
Committer: Pedro Boado <pb...@apache.org>
Committed: Tue Nov 27 15:12:08 2018 +0000
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.../UngroupedAggregateRegionObserver.java | 43 ++++++++++++--------
1 file changed, 26 insertions(+), 17 deletions(-)
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http://git-wip-us.apache.org/repos/asf/phoenix/blob/b20b21d1/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java
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diff --git a/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java b/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java
index 73386a2..26e338f 100644
--- a/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java
+++ b/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java
@@ -262,7 +262,7 @@ public class UngroupedAggregateRegionObserver extends BaseScannerRegionObserver
// flush happen which decrease the memstore size and then writes allowed on the region.
for (int i = 0; blockingMemstoreSize > 0 && region.getMemstoreSize() > blockingMemstoreSize && i < 30; i++) {
try {
- checkForRegionClosing();
+ checkForRegionClosingOrSplitting();
Thread.sleep(100);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
@@ -311,7 +311,7 @@ public class UngroupedAggregateRegionObserver extends BaseScannerRegionObserver
* a high chance that flush might not proceed and memstore won't be freed up.
* @throws IOException
*/
- private void checkForRegionClosing() throws IOException {
+ private void checkForRegionClosingOrSplitting() throws IOException {
synchronized (lock) {
if(isRegionClosingOrSplitting) {
lock.notifyAll();
@@ -1333,13 +1333,31 @@ public class UngroupedAggregateRegionObserver extends BaseScannerRegionObserver
@Override
public void preSplit(ObserverContext<RegionCoprocessorEnvironment> c, byte[] splitRow)
throws IOException {
- // Don't allow splitting if operations need read and write to same region are going on in the
- // the coprocessors to avoid dead lock scenario. See PHOENIX-3111.
+ waitForScansToFinish(c);
+ }
+
+ // Don't allow splitting/closing if operations need read and write to same region are going on in the
+ // the coprocessors to avoid dead lock scenario. See PHOENIX-3111.
+ private void waitForScansToFinish(ObserverContext<RegionCoprocessorEnvironment> c) throws IOException {
+ int maxWaitTime = c.getEnvironment().getConfiguration().getInt(HConstants.HBASE_CLIENT_OPERATION_TIMEOUT,
+ HConstants.DEFAULT_HBASE_CLIENT_OPERATION_TIMEOUT);
+ long start = EnvironmentEdgeManager.currentTimeMillis();
synchronized (lock) {
isRegionClosingOrSplitting = true;
- if (scansReferenceCount > 0) {
- throw new IOException("Operations like local index building/delete/upsert select"
- + " might be going on so not allowing to split.");
+ while (scansReferenceCount > 0) {
+ try {
+ lock.wait(1000);
+ if (EnvironmentEdgeManager.currentTimeMillis() - start >= maxWaitTime) {
+ isRegionClosingOrSplitting = false; // must reset in case split is not retried
+ throw new IOException(String.format(
+ "Operations like local index building/delete/upsert select"
+ + " might be going on so not allowing to split/close. scansReferenceCount=%s region=%s",
+ scansReferenceCount,
+ c.getEnvironment().getRegionInfo().getRegionNameAsString()));
+ }
+ } catch (InterruptedException e) {
+ Thread.currentThread().interrupt();
+ }
}
}
}
@@ -1360,16 +1378,7 @@ public class UngroupedAggregateRegionObserver extends BaseScannerRegionObserver
@Override
public void preClose(ObserverContext<RegionCoprocessorEnvironment> c, boolean abortRequested)
throws IOException {
- synchronized (lock) {
- isRegionClosingOrSplitting = true;
- while (scansReferenceCount > 0) {
- try {
- lock.wait(1000);
- } catch (InterruptedException e) {
- Thread.currentThread().interrupt();
- }
- }
- }
+ waitForScansToFinish(c);
}
@Override