From 5083d20c7f49788e64ca9080aebcded623d7aa44 Mon Sep 17 00:00:00 2001
From: Tom Pantelis <tompantelis@gmail.com>
Date: Thu, 11 May 2017 12:31:27 -0400
Subject: [PATCH 1/1] Bug 8424: Don't output data tree and tree candidates wih
 debug

Data trees and tree candidates can get quite large and fill up the
log files when debug is on and, worst case, cause OOM errors. For
debug logging, only print the whole tree/candidate with trace logging.
In cases where an Optional data tree is outputted via toString, only
output if the data tree is present or not.

Change-Id: I6cb5f9a5da9e3cc3218c83bb103b673db0fb1d80
Signed-off-by: Tom Pantelis <tompantelis@gmail.com>
---
 .../cluster/access/commands/ConnectClientSuccess.java     | 4 ++--
 .../cluster/access/commands/ConnectClientSuccessTest.java | 8 +++-----
 .../cluster/databroker/actors/dds/ShardBackendInfo.java   | 2 +-
 .../cluster/datastore/CompositeDataTreeCohort.java        | 6 +++++-
 .../DefaultShardDataTreeChangeListenerPublisher.java      | 7 ++++++-
 5 files changed, 17 insertions(+), 10 deletions(-)

diff --git a/opendaylight/md-sal/cds-access-api/src/main/java/org/opendaylight/controller/cluster/access/commands/ConnectClientSuccess.java b/opendaylight/md-sal/cds-access-api/src/main/java/org/opendaylight/controller/cluster/access/commands/ConnectClientSuccess.java
index c813605bf3..90eff1b227 100644
--- a/opendaylight/md-sal/cds-access-api/src/main/java/org/opendaylight/controller/cluster/access/commands/ConnectClientSuccess.java
+++ b/opendaylight/md-sal/cds-access-api/src/main/java/org/opendaylight/controller/cluster/access/commands/ConnectClientSuccess.java
@@ -94,7 +94,7 @@ public final class ConnectClientSuccess extends RequestSuccess<ClientIdentifier,
 
     @Override
     protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
-        return super.addToStringAttributes(toStringHelper).add("alternates", alternates).add("dataTree", dataTree)
-                .add("maxMessages", maxMessages);
+        return super.addToStringAttributes(toStringHelper).add("alternates", alternates)
+                .add("dataTree present", getDataTree().isPresent()).add("maxMessages", maxMessages);
     }
 }
diff --git a/opendaylight/md-sal/cds-access-api/src/test/java/org/opendaylight/controller/cluster/access/commands/ConnectClientSuccessTest.java b/opendaylight/md-sal/cds-access-api/src/test/java/org/opendaylight/controller/cluster/access/commands/ConnectClientSuccessTest.java
index ea346e8788..daaae4f9b4 100644
--- a/opendaylight/md-sal/cds-access-api/src/test/java/org/opendaylight/controller/cluster/access/commands/ConnectClientSuccessTest.java
+++ b/opendaylight/md-sal/cds-access-api/src/test/java/org/opendaylight/controller/cluster/access/commands/ConnectClientSuccessTest.java
@@ -78,11 +78,9 @@ public class ConnectClientSuccessTest extends AbstractRequestSuccessTest<Connect
     }
 
     @Test
-    public void addToStringAttributes() throws Exception {
-        final MoreObjects.ToStringHelper result = OBJECT.addToStringAttributes(MoreObjects.toStringHelper(OBJECT));
-        Assert.assertTrue(result.toString().contains("alternates=" + ALTERNATES));
-        Assert.assertTrue(result.toString().contains("dataTree=" + TREE));
-        Assert.assertTrue(result.toString().contains("maxMessages=" + MAX_MESSAGES));
+    public void addToStringAttributes() {
+        // Just verify it doesn't throw an exception.
+        OBJECT.addToStringAttributes(MoreObjects.toStringHelper(OBJECT));
     }
 
     @Override
diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/actors/dds/ShardBackendInfo.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/actors/dds/ShardBackendInfo.java
index c906e1accc..86acd1b3cf 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/actors/dds/ShardBackendInfo.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/actors/dds/ShardBackendInfo.java
@@ -58,6 +58,6 @@ final class ShardBackendInfo extends BackendInfo {
     @Override
     protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
         return super.addToStringAttributes(toStringHelper).add("cookie", cookie).add("shard", shardName)
-                .add("dataTree", dataTree.orElse(null));
+                .add("dataTree present", getDataTree().isPresent());
     }
 }
diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/CompositeDataTreeCohort.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/CompositeDataTreeCohort.java
index a84fa4610d..338ae64534 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/CompositeDataTreeCohort.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/CompositeDataTreeCohort.java
@@ -134,7 +134,11 @@ class CompositeDataTreeCohort {
     }
 
     void canCommit(final DataTreeCandidate tip) throws ExecutionException, TimeoutException {
-        LOG.debug("{}: canCommit - candidate: {}", txId, tip);
+        if (LOG.isTraceEnabled()) {
+            LOG.trace("{}: canCommit - candidate: {}", txId, tip);
+        } else {
+            LOG.debug("{}: canCommit - candidate rootPath: {}", txId, tip.getRootPath());
+        }
 
         final List<CanCommit> messages = registry.createCanCommitMessages(txId, tip, schema);
         LOG.debug("{}: canCommit - messages: {}", txId, messages);
diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DefaultShardDataTreeChangeListenerPublisher.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DefaultShardDataTreeChangeListenerPublisher.java
index 895ce30e8b..449b620170 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DefaultShardDataTreeChangeListenerPublisher.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DefaultShardDataTreeChangeListenerPublisher.java
@@ -38,7 +38,12 @@ final class DefaultShardDataTreeChangeListenerPublisher extends AbstractDOMStore
 
     @Override
     public void publishChanges(final DataTreeCandidate candidate) {
-        LOG.debug("{}: publishChanges: {}", logContext, candidate);
+        if (LOG.isTraceEnabled()) {
+            LOG.trace("{}: publishChanges: {}", logContext, candidate);
+        } else {
+            LOG.debug("{}: publishChanges: rootPath: {}", logContext, candidate.getRootPath());
+        }
+
         processCandidateTree(candidate);
     }
 
-- 
2.36.6