[GitHub] flink pull request: [FLINK-1775] BarrierBuffer fix to avoid end of...

2015-03-26 Thread asfgit
Github user asfgit closed the pull request at:

https://github.com/apache/flink/pull/534


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[GitHub] flink pull request: [FLINK-1775] BarrierBuffer fix to avoid end of...

2015-03-26 Thread gyfora
Github user gyfora commented on the pull request:

https://github.com/apache/flink/pull/534#issuecomment-86555612
  
Ok I will add that one


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[GitHub] flink pull request: [FLINK-1775] BarrierBuffer fix to avoid end of...

2015-03-26 Thread uce
Github user uce commented on the pull request:

https://github.com/apache/flink/pull/534#issuecomment-86554956
  
I think we need to refactor some parts, but this is a crucial fix. Tests 
are passing.

+1 to merge after throwing the Exception Robert mentioned.


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[GitHub] flink pull request: [FLINK-1775] BarrierBuffer fix to avoid end of...

2015-03-26 Thread gyfora
Github user gyfora commented on the pull request:

https://github.com/apache/flink/pull/534#issuecomment-86554780
  
Now it seems that all these issues are fixed.


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[GitHub] flink pull request: [FLINK-1775] BarrierBuffer fix to avoid end of...

2015-03-25 Thread gyfora
Github user gyfora commented on the pull request:

https://github.com/apache/flink/pull/534#issuecomment-86140841
  
Should we merge this anyway? The recordwriter issue seems to be independent 
from this, and this commit solves some other bugs.


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[GitHub] flink pull request: [FLINK-1775] BarrierBuffer fix to avoid end of...

2015-03-25 Thread gyfora
Github user gyfora commented on a diff in the pull request:

https://github.com/apache/flink/pull/534#discussion_r27115550
  
--- Diff: 
flink-staging/flink-streaming/flink-streaming-core/src/main/java/org/apache/flink/streaming/api/streamvertex/StreamVertex.java
 ---
@@ -283,16 +288,18 @@ public StreamConfig getConfig() {
 * 
 * @param id
 */
-   private void actOnBarrier(long id) {
-   try {
-   outputHandler.broadcastBarrier(id);
-   // TODO checkpoint state here
-   confirmBarrier(id);
-   if (LOG.isDebugEnabled()) {
-   LOG.debug("Superstep " + id + " processed: " + 
StreamVertex.this);
+   private synchronized void actOnBarrier(long id) {
+   if (this.isRunning) {
+   try {
+   outputHandler.broadcastBarrier(id);
+   // TODO checkpoint state here
+   confirmBarrier(id);
+   if (LOG.isDebugEnabled()) {
+   LOG.debug("Superstep " + id + " 
processed: " + StreamVertex.this);
+   }
+   } catch (Exception e) {
+   // TODO:Figure this out properly
--- End diff --

but I am trying to sort all these out with ufuk


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[GitHub] flink pull request: [FLINK-1775] BarrierBuffer fix to avoid end of...

2015-03-25 Thread gyfora
Github user gyfora commented on a diff in the pull request:

https://github.com/apache/flink/pull/534#discussion_r27115257
  
--- Diff: 
flink-staging/flink-streaming/flink-streaming-core/src/main/java/org/apache/flink/streaming/api/streamvertex/StreamVertex.java
 ---
@@ -283,16 +288,18 @@ public StreamConfig getConfig() {
 * 
 * @param id
 */
-   private void actOnBarrier(long id) {
-   try {
-   outputHandler.broadcastBarrier(id);
-   // TODO checkpoint state here
-   confirmBarrier(id);
-   if (LOG.isDebugEnabled()) {
-   LOG.debug("Superstep " + id + " processed: " + 
StreamVertex.this);
+   private synchronized void actOnBarrier(long id) {
+   if (this.isRunning) {
+   try {
+   outputHandler.broadcastBarrier(id);
+   // TODO checkpoint state here
+   confirmBarrier(id);
+   if (LOG.isDebugEnabled()) {
+   LOG.debug("Superstep " + id + " 
processed: " + StreamVertex.this);
+   }
+   } catch (Exception e) {
+   // TODO:Figure this out properly
--- End diff --

I had some weird exceptions after the streams finished, and in any case 
this shouldnt affect the recovery logic


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[GitHub] flink pull request: [FLINK-1775] BarrierBuffer fix to avoid end of...

2015-03-25 Thread uce
Github user uce commented on the pull request:

https://github.com/apache/flink/pull/534#issuecomment-85909585
  
Hey gyula,

What is the problem with the stream writer? And how can I reproduce the 
record writer broadcast problem? If you give me some instructions to reproduce 
the problem, I could also look into it.


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[GitHub] flink pull request: [FLINK-1775] BarrierBuffer fix to avoid end of...

2015-03-25 Thread rmetzger
Github user rmetzger commented on a diff in the pull request:

https://github.com/apache/flink/pull/534#discussion_r27100141
  
--- Diff: 
flink-staging/flink-streaming/flink-streaming-core/src/main/java/org/apache/flink/streaming/api/streamvertex/StreamVertex.java
 ---
@@ -283,16 +288,18 @@ public StreamConfig getConfig() {
 * 
 * @param id
 */
-   private void actOnBarrier(long id) {
-   try {
-   outputHandler.broadcastBarrier(id);
-   // TODO checkpoint state here
-   confirmBarrier(id);
-   if (LOG.isDebugEnabled()) {
-   LOG.debug("Superstep " + id + " processed: " + 
StreamVertex.this);
+   private synchronized void actOnBarrier(long id) {
+   if (this.isRunning) {
+   try {
+   outputHandler.broadcastBarrier(id);
+   // TODO checkpoint state here
+   confirmBarrier(id);
+   if (LOG.isDebugEnabled()) {
+   LOG.debug("Superstep " + id + " 
processed: " + StreamVertex.this);
+   }
+   } catch (Exception e) {
+   // TODO:Figure this out properly
--- End diff --

Why are you swallowing the exception here silently?


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[GitHub] flink pull request: [FLINK-1775] BarrierBuffer fix to avoid end of...

2015-03-24 Thread gyfora
GitHub user gyfora opened a pull request:

https://github.com/apache/flink/pull/534

[FLINK-1775] BarrierBuffer fix to avoid end of stream deadlock

This fixes several corner-cases in the barrier buffer logic.

Still two problems remain:

- If the StreamRecordWriter is active (a thread is running to flush the 
ouputs every so many milliseconds) 
- On travis the RecordWriters seem to deadlock at the sources for some 
reason on broadcastEvent calls. (I cannot reproduce this locally)

You can merge this pull request into a Git repository by running:

$ git pull https://github.com/mbalassi/flink FLINK-1775

Alternatively you can review and apply these changes as the patch at:

https://github.com/apache/flink/pull/534.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

This closes #534


commit 35d71c8b8461e689ec02e64ef1089adfe1f4d7cb
Author: Gyula Fora 
Date:   2015-03-24T23:14:21Z

[FLINK-1775] BarrierBuffer fix to avoid end of stream deadlock




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[GitHub] flink pull request: [FLINK-1775] BarrierBuffer fix to avoid end of...

2015-03-23 Thread gyfora
Github user gyfora closed the pull request at:

https://github.com/apache/flink/pull/526


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[GitHub] flink pull request: [FLINK-1775] BarrierBuffer fix to avoid end of...

2015-03-23 Thread gyfora
GitHub user gyfora opened a pull request:

https://github.com/apache/flink/pull/526

[FLINK-1775] BarrierBuffer fix to avoid end of stream deadlock



You can merge this pull request into a Git repository by running:

$ git pull https://github.com/mbalassi/flink FLINK-1775

Alternatively you can review and apply these changes as the patch at:

https://github.com/apache/flink/pull/526.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

This closes #526


commit d5b5e1a1f87306e5a94258c58418ac8129615111
Author: Gyula Fora 
Date:   2015-03-23T22:29:55Z

[FLINK-1775] BarrierBuffer fix to avoid end of stream deadlock




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