[ 
https://issues.apache.org/jira/browse/GEODE-8020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17100856#comment-17100856
 ] 

ASF GitHub Bot commented on GEODE-8020:
---------------------------------------

echobravopapa commented on a change in pull request #5048:
URL: https://github.com/apache/geode/pull/5048#discussion_r420837745



##########
File path: 
geode-core/src/main/java/org/apache/geode/internal/net/NioSslEngine.java
##########
@@ -398,6 +398,7 @@ public void close(SocketChannel socketChannel) {
     } finally {
       bufferPool.releaseBuffer(TRACKED_SENDER, myNetData);
       bufferPool.releaseBuffer(TRACKED_RECEIVER, peerAppData);
+      myNetData = null;

Review comment:
       that's cute, personalized data ;P

##########
File path: 
geode-core/src/main/java/org/apache/geode/internal/tcp/MsgStreamerList.java
##########
@@ -63,25 +63,16 @@ public int writeMessage() throws IOException {
     for (MsgStreamer streamer : this.streamers) {
       if (ex != null) {
         streamer.release();
-        // TODO: shouldn't we call continue here?
-        // It seems wrong to call writeMessage on a streamer we have just 
released.
-        // But why do we call release on a streamer when we had an exception 
on one
-        // of the previous streamer?
-        // release clears the direct bb and returns it to the pool but leaves
-        // it has the "buffer". THen we call writeMessage and it will use 
"buffer"
-        // that has also been returned to the pool.
-        // I think we only have a MsgStreamerList when a DS has a mix of 
versions
-        // which usually is just during a rolling upgrade so that might be why 
we
-        // haven't noticed this causing a bug.
-      }
-      try {
-        result += streamer.writeMessage();
-        // if there is an exception we need to finish the
-        // loop and release the other streamer's buffers
-      } catch (RuntimeException e) {
-        ex = e;
-      } catch (IOException e) {
-        ioex = e;
+      } else {

Review comment:
       thx for removing all those crufty comments

##########
File path: 
geode-core/src/main/java/org/apache/geode/internal/net/BufferPool.java
##########
@@ -69,7 +74,8 @@ public BufferPool(DMStats stats) {
   /**
    * use direct ByteBuffers instead of heap ByteBuffers for NIO operations
    */
-  public static final boolean useDirectBuffers = 
!Boolean.getBoolean("p2p.nodirectBuffers");
+  public static final boolean useDirectBuffers = 
!(Boolean.getBoolean("p2p.nodirectBuffers")
+      || Boolean.getBoolean(GeodeGlossary.GEMFIRE_PREFIX + "noDirectBuffers"));

Review comment:
       is the GF prefixed version of the property need to be exposed/documented?




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> buffer corruption in SSL communications
> ---------------------------------------
>
>                 Key: GEODE-8020
>                 URL: https://issues.apache.org/jira/browse/GEODE-8020
>             Project: Geode
>          Issue Type: Bug
>          Components: membership, messaging
>            Reporter: Bruce J Schuchardt
>            Assignee: Bruce J Schuchardt
>            Priority: Major
>
> When running an application with SSL enabled I ran into a hang with a lost 
> message.  The sender had a 15 second ack-wait warning pointing to another 
> server in the cluster.  That server had this in its log file at the time the 
> message would have been processed:
> {noformat}
> [info 2020/04/21 11:22:39.437 PDT <P2P message reader for 
> rs-bschuchardt-1053-hydra-client-1(bridgegemfire4_host1_12599:12599)<ec><v1>:41003
>  unshared ordered uid=354 dom #2 port=55262> tid=0xad] P2P message 
> reader@2580db5f io exception for 
> rs-bschuchardt-1053-hydra-client-1(bridgegemfire4_host1_12599:12599)<ec><v1>:41003@354(GEODE
>  1.10.0)
> javax.net.ssl.SSLException: bad record MAC
>       at sun.security.ssl.Alerts.getSSLException(Alerts.java:214)
>       at sun.security.ssl.SSLEngineImpl.fatal(SSLEngineImpl.java:1728)
>       at sun.security.ssl.SSLEngineImpl.readRecord(SSLEngineImpl.java:986)
>       at sun.security.ssl.SSLEngineImpl.readNetRecord(SSLEngineImpl.java:912)
>       at sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:782)
>       at javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:626)
>       at 
> org.apache.geode.internal.net.NioSslEngine.unwrap(NioSslEngine.java:275)
>       at 
> org.apache.geode.internal.tcp.Connection.processInputBuffer(Connection.java:2894)
>       at 
> org.apache.geode.internal.tcp.Connection.readMessages(Connection.java:1745)
>       at org.apache.geode.internal.tcp.Connection.run(Connection.java:1577)
>       at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
>       at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
>       at java.lang.Thread.run(Thread.java:748)
> Caused by: javax.crypto.BadPaddingException: bad record MAC
>       at sun.security.ssl.InputRecord.decrypt(InputRecord.java:219)
>       at 
> sun.security.ssl.EngineInputRecord.decrypt(EngineInputRecord.java:177)
>       at sun.security.ssl.SSLEngineImpl.readRecord(SSLEngineImpl.java:979)
>       ... 10 more
> {noformat}
> I bisected to see when this problem was introduced and found it was this 
> commit:
> {noformat}
> commit 418d929e3e03185cd6330c828c9b9ed395a76d4b
> Author: Mario Ivanac <48509724+miva...@users.noreply.github.com>
> Date:   Fri Nov 1 20:28:57 2019 +0100
>     GEODE-6661: Fixed use of Direct and Non-Direct buffers (#4267)
>     - Fixed use of Direct and Non-Direct buffers
> {noformat}
> That commit modified the NioSSLEngine to use a "direct" byte buffer instead 
> of a heap byte buffer.  If I revert that one part of the PR the test works 
> okay.



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