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Posted to commits@lucene.apache.org by er...@apache.org on 2017/08/16 21:10:42 UTC

lucene-solr:branch_6_6: SOLR-10721: Provide a way to know when Core Discovery is finished and when all async cores are done loading

Repository: lucene-solr
Updated Branches:
  refs/heads/branch_6_6 8547474c8 -> 02c1b75d4


SOLR-10721: Provide a way to know when Core Discovery is finished and when all async cores are done loading


Project: http://git-wip-us.apache.org/repos/asf/lucene-solr/repo
Commit: http://git-wip-us.apache.org/repos/asf/lucene-solr/commit/02c1b75d
Tree: http://git-wip-us.apache.org/repos/asf/lucene-solr/tree/02c1b75d
Diff: http://git-wip-us.apache.org/repos/asf/lucene-solr/diff/02c1b75d

Branch: refs/heads/branch_6_6
Commit: 02c1b75d44ecd4d17a71fe48978b79bc04d872be
Parents: 8547474
Author: Erick <er...@apache.org>
Authored: Wed Aug 16 14:10:35 2017 -0700
Committer: Erick <er...@apache.org>
Committed: Wed Aug 16 14:10:35 2017 -0700

----------------------------------------------------------------------
 .../org/apache/solr/core/CoreContainer.java     | 14 ++++++++++++++
 .../org/apache/solr/core/TestCoreDiscovery.java | 20 ++++++++++++++++----
 2 files changed, 30 insertions(+), 4 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/02c1b75d/solr/core/src/java/org/apache/solr/core/CoreContainer.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/core/CoreContainer.java b/solr/core/src/java/org/apache/solr/core/CoreContainer.java
index 3ffea88..57d777c 100644
--- a/solr/core/src/java/org/apache/solr/core/CoreContainer.java
+++ b/solr/core/src/java/org/apache/solr/core/CoreContainer.java
@@ -176,6 +176,12 @@ public class CoreContainer {
 
   protected MetricsHandler metricsHandler;
 
+  // Bits for the state variable.
+  public final static long LOAD_COMPLETE = 0x1L;
+  public final static long CORE_DISCOVERY_COMPLETE = 0x2L;
+  public final static long INITIAL_CORE_LOAD_COMPLETE = 0x4L;
+  private volatile long status = 0L;
+
   private enum CoreInitFailedAction { fromleader, none }
 
   /**
@@ -539,6 +545,7 @@ public class CoreContainer {
         Collections.sort(cds, coreComparator::compare);
       }
       checkForDuplicateCoreNames(cds);
+      status |= CORE_DISCOVERY_COMPLETE;
 
       for (final CoreDescriptor cd : cds) {
         if (cd.isTransient() || !cd.isLoadOnStartup()) {
@@ -601,8 +608,11 @@ public class CoreContainer {
     if (isZooKeeperAware()) {
       zkSys.getZkController().checkOverseerDesignate();
     }
+    // This is a bit redundant but these are two distinct concepts for all they're accomplished at the same time.
+    status |= LOAD_COMPLETE | INITIAL_CORE_LOAD_COMPLETE;
   }
 
+
   public void securityNodeChanged() {
     log.info("Security node changed, reloading security.json");
     reloadSecurityProperties();
@@ -1477,6 +1487,10 @@ public class CoreContainer {
     return cfg;
   }
 
+  public long getStatus() {
+    return status;
+  }
+
 }
 
 class CloserThread extends Thread {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/02c1b75d/solr/core/src/test/org/apache/solr/core/TestCoreDiscovery.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/core/TestCoreDiscovery.java b/solr/core/src/test/org/apache/solr/core/TestCoreDiscovery.java
index 552f1cb..bf0568f 100644
--- a/solr/core/src/test/org/apache/solr/core/TestCoreDiscovery.java
+++ b/solr/core/src/test/org/apache/solr/core/TestCoreDiscovery.java
@@ -34,6 +34,9 @@ import org.junit.After;
 import org.junit.BeforeClass;
 import org.junit.Test;
 
+import static org.apache.solr.core.CoreContainer.CORE_DISCOVERY_COMPLETE;
+import static org.apache.solr.core.CoreContainer.INITIAL_CORE_LOAD_COMPLETE;
+import static org.apache.solr.core.CoreContainer.LOAD_COMPLETE;
 import static org.hamcrest.CoreMatchers.not;
 import static org.junit.internal.matchers.StringContains.containsString;
 
@@ -108,14 +111,23 @@ public class TestCoreDiscovery extends SolrTestCaseJ4 {
   }
 
   private CoreContainer init() throws Exception {
-    final CoreContainer cores = new CoreContainer();
+    final CoreContainer container = new CoreContainer();
     try {
-      cores.load();
+      container.load();
     } catch (Exception e) {
-      cores.shutdown();
+      container.shutdown();
       throw e;
     }
-    return cores;
+
+    long status = container.getStatus();
+
+    assertTrue("Load complete flag should be set", 
+        (status & LOAD_COMPLETE) == LOAD_COMPLETE);
+    assertTrue("Core discovery should be complete", 
+        (status & CORE_DISCOVERY_COMPLETE) == CORE_DISCOVERY_COMPLETE);
+    assertTrue("Initial core loading should be complete", 
+        (status & INITIAL_CORE_LOAD_COMPLETE) == INITIAL_CORE_LOAD_COMPLETE);
+    return container;
   }
 
   @After