You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@lucene.apache.org by ma...@apache.org on 2017/04/14 05:18:04 UTC

lucene-solr:branch_6x: SOLR-10151: Use monotonically incrementing counter for doc ids in TestRecovery.

Repository: lucene-solr
Updated Branches:
  refs/heads/branch_6x 23e3582c9 -> 8681dafd5


SOLR-10151: Use monotonically incrementing counter for doc ids in TestRecovery.


Project: http://git-wip-us.apache.org/repos/asf/lucene-solr/repo
Commit: http://git-wip-us.apache.org/repos/asf/lucene-solr/commit/8681dafd
Tree: http://git-wip-us.apache.org/repos/asf/lucene-solr/tree/8681dafd
Diff: http://git-wip-us.apache.org/repos/asf/lucene-solr/diff/8681dafd

Branch: refs/heads/branch_6x
Commit: 8681dafd521e72e5834765cdc216f7588a8b927c
Parents: 23e3582
Author: markrmiller <ma...@apache.org>
Authored: Fri Apr 14 01:17:03 2017 -0400
Committer: markrmiller <ma...@apache.org>
Committed: Fri Apr 14 01:17:51 2017 -0400

----------------------------------------------------------------------
 solr/CHANGES.txt                                |   2 +
 .../org/apache/solr/search/TestRecovery.java    | 348 ++++++++++++-------
 2 files changed, 227 insertions(+), 123 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/8681dafd/solr/CHANGES.txt
----------------------------------------------------------------------
diff --git a/solr/CHANGES.txt b/solr/CHANGES.txt
index 2baecad..c6f843f 100644
--- a/solr/CHANGES.txt
+++ b/solr/CHANGES.txt
@@ -141,6 +141,8 @@ Other Changes
 
 * SOLR-10007: Clean up references to CoreContainer and CoreDescriptors (Erick Erickson)
 
+* SOLR-10151: Use monotonically incrementing counter for doc ids in TestRecovery. (Peter Szantai-Kis, Mano Kovacs via Mark Miller)
+
 ==================  6.5.1 ==================
 
 Bug Fixes

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/8681dafd/solr/core/src/test/org/apache/solr/search/TestRecovery.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/search/TestRecovery.java b/solr/core/src/test/org/apache/solr/search/TestRecovery.java
index 4b0c51c..b6ec6b1 100644
--- a/solr/core/src/test/org/apache/solr/search/TestRecovery.java
+++ b/solr/core/src/test/org/apache/solr/search/TestRecovery.java
@@ -17,6 +17,7 @@
 package org.apache.solr.search;
 
 
+import static org.apache.solr.search.TestRecovery.VersionProvider.*;
 import static org.apache.solr.update.processor.DistributingUpdateProcessorFactory.DISTRIB_UPDATE_PARAM;
 
 import com.codahale.metrics.Gauge;
@@ -292,10 +293,15 @@ public class TestRecovery extends SolrTestCaseJ4 {
   @Test
   public void testLogReplayWithReorderedDBQ() throws Exception {
     testLogReplayWithReorderedDBQWrapper(() -> {
-          updateJ(jsonAdd(sdoc("id", "RDBQ1_1", "_version_", "1010")), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
-          updateJ(jsonDelQ("id:RDBQ1_2"), params(DISTRIB_UPDATE_PARAM, FROM_LEADER, "_version_", "-1017")); // This should've arrived after the 1015th update
-          updateJ(jsonAdd(sdoc("id", "RDBQ1_2", "_version_", "1015")), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
-          updateJ(jsonAdd(sdoc("id", "RDBQ1_3", "_version_", "1020")), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          String v1010 = getNextVersion();
+          String v1015 = getNextVersion();
+          String v1017_del = "-" + getNextVersion();
+          String v1020 = getNextVersion();
+          
+          updateJ(jsonAdd(sdoc("id", "RDBQ1_1", "_version_", v1010)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          updateJ(jsonDelQ("id:RDBQ1_2"), params(DISTRIB_UPDATE_PARAM, FROM_LEADER, "_version_", v1017_del)); // This should've arrived after the ver2 update
+          updateJ(jsonAdd(sdoc("id", "RDBQ1_2", "_version_", v1015)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          updateJ(jsonAdd(sdoc("id", "RDBQ1_3", "_version_", v1020)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
         },
         () -> assertJQ(req("q", "*:*"), "/response/numFound==2")
     );
@@ -304,16 +310,22 @@ public class TestRecovery extends SolrTestCaseJ4 {
   @Test
   public void testLogReplayWithReorderedDBQByAsterixAndChildDocs() throws Exception {
     testLogReplayWithReorderedDBQWrapper(() -> {
+          String v1010 = getNextVersion();
+          String v1012 = getNextVersion();
+          String v1017_del = "-" + getNextVersion();
+          String v1018 = getNextVersion();
+          String v1020 = getNextVersion();
+          
           // 1010 - will be deleted
-          updateJ(jsonAdd(sdocWithChildren("RDBQ2_1", "1010")), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          updateJ(jsonAdd(sdocWithChildren("RDBQ2_1", v1010)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
           // 1018 - should be kept, including child docs
-          updateJ(jsonAdd(sdocWithChildren("RDBQ2_2", "1018")), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          updateJ(jsonAdd(sdocWithChildren("RDBQ2_2", v1018)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
           // 1017 - delete should affect only 1010
-          updateJ(jsonDelQ("_root_:RDBQ2_1 _root_:RDBQ2_2 id:RDBQ2_3 _root_:RDBQ2_4"), params(DISTRIB_UPDATE_PARAM, FROM_LEADER, "_version_", "-1017")); // This should've arrived after the 1015th update
+          updateJ(jsonDelQ("_root_:RDBQ2_1 _root_:RDBQ2_2 id:RDBQ2_3 _root_:RDBQ2_4"), params(DISTRIB_UPDATE_PARAM, FROM_LEADER, "_version_", v1017_del)); // This should've arrived after the ver2 update
           // 1012 - will be deleted
-          updateJ(jsonAdd(sdoc("id", "RDBQ2_3", "_version_", "1012")), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          updateJ(jsonAdd(sdoc("id", "RDBQ2_3", "_version_", v1012)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
           // 1020 - should be untouched
-          updateJ(jsonAdd(sdocWithChildren("RDBQ2_4", "1020")), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          updateJ(jsonAdd(sdocWithChildren("RDBQ2_4", v1020)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
         },
         () -> assertJQ(req("q", "*:*"), "/response/numFound==6")
     );
@@ -322,16 +334,22 @@ public class TestRecovery extends SolrTestCaseJ4 {
   @Test
   public void testLogReplayWithReorderedDBQByIdAndChildDocs() throws Exception {
     testLogReplayWithReorderedDBQWrapper(() -> {
+          String v1010 = getNextVersion();
+          String v1012 = getNextVersion();
+          String v1017_del = "-" + getNextVersion();
+          String v1018 = getNextVersion();
+          String v1020 = getNextVersion();
+      
           // 1010 - will be deleted
-          updateJ(jsonAdd(sdocWithChildren("RDBQ3_1", "1010")), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          updateJ(jsonAdd(sdocWithChildren("RDBQ3_1", v1010)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
           // 1018 - should be kept, including child docs
-          updateJ(jsonAdd(sdocWithChildren("RDBQ3_2", "1018")), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          updateJ(jsonAdd(sdocWithChildren("RDBQ3_2", v1018)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
           // 1017 - delete should affect only 1010
-          updateJ(jsonDelQ("id:RDBQ3_1 id:RDBQ3_2 id:RDBQ3_3 id:RDBQ3_4"), params(DISTRIB_UPDATE_PARAM, FROM_LEADER, "_version_", "-1017")); // This should've arrived after the 1015th update
+          updateJ(jsonDelQ("id:RDBQ3_1 id:RDBQ3_2 id:RDBQ3_3 id:RDBQ3_4"), params(DISTRIB_UPDATE_PARAM, FROM_LEADER, "_version_", v1017_del)); // This should've arrived after the ver2 update
           // 1012 - will be deleted
-          updateJ(jsonAdd(sdoc("id", "RDBQ3_3", "_version_", "1012")), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          updateJ(jsonAdd(sdoc("id", "RDBQ3_3", "_version_", v1012)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
           // 1020 - should be untouched
-          updateJ(jsonAdd(sdocWithChildren("RDBQ3_4", "1020")), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          updateJ(jsonAdd(sdocWithChildren("RDBQ3_4", v1020)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
         },
         () -> assertJQ(req("q", "*:*"), "/response/numFound==8") // RDBQ3_2, RDBQ3_4 and 6 children docs (delete by id does not delete child docs)
     );
@@ -340,10 +358,13 @@ public class TestRecovery extends SolrTestCaseJ4 {
   @Test
   public void testLogReplayWithReorderedDBQInsertingChildnodes() throws Exception {
     testLogReplayWithReorderedDBQWrapper(() -> {
-          updateJ(jsonDelQ("id:RDBQ4_2"), params(DISTRIB_UPDATE_PARAM, FROM_LEADER, "_version_", "-1017"));
+          String v1013 = getNextVersion();
+          String v1017_del = "-" + getNextVersion();
+          
+          updateJ(jsonDelQ("id:RDBQ4_2"), params(DISTRIB_UPDATE_PARAM, FROM_LEADER, "_version_", v1017_del));
           // test doc: B1
           // 1013 - will be inserted with 3 children
-          updateJ(jsonAdd(sdocWithChildren("RDBQ4_1", "1013", 3)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          updateJ(jsonAdd(sdocWithChildren("RDBQ4_1", v1013, 3)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
         },
         () -> assertJQ(req("q", "*:*"), "/response/numFound==4") // RDBQ4_1 and RDBQ4_2, plus 2x 3 children
     );
@@ -353,17 +374,23 @@ public class TestRecovery extends SolrTestCaseJ4 {
   @Test
   public void testLogReplayWithReorderedDBQUpdateWithDifferentChildCount() throws Exception {
     testLogReplayWithReorderedDBQWrapper(() -> {
+          String v1011 = getNextVersion();
+          String v1012 = getNextVersion();
+          String v1013 = getNextVersion();
+          String v1018 = getNextVersion();
+          String v1019_del = "-" + getNextVersion();
+      
           // control
-          // 1013 - will be inserted with 3 children
-          updateJ(jsonAdd(sdocWithChildren("RDBQ5_1", "1011", 2)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          // 1011 - will be inserted with 3 children as 1012
+          updateJ(jsonAdd(sdocWithChildren("RDBQ5_1", v1011, 2)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          // 1012 - this should be the final
+          updateJ(jsonAdd(sdocWithChildren("RDBQ5_1", v1012, 3)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+
+          // 1013 - will be inserted with 3 children as 1018
+          updateJ(jsonAdd(sdocWithChildren("RDBQ5_2", v1013, 2)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          updateJ(jsonDelQ("id:RDBQ5_3"), params(DISTRIB_UPDATE_PARAM, FROM_LEADER, "_version_", v1019_del));
           // 1018 - this should be the final
-          updateJ(jsonAdd(sdocWithChildren("RDBQ5_1", "1012", 3)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
-
-          // 1013 - will be inserted with 3 children
-          updateJ(jsonAdd(sdocWithChildren("RDBQ5_2", "1013", 2)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
-          updateJ(jsonDelQ("id:RDBQ5_3"), params(DISTRIB_UPDATE_PARAM, FROM_LEADER, "_version_", "-1019"));
-          // 1018 - this should be the final
-          updateJ(jsonAdd(sdocWithChildren("RDBQ5_2", "1018", 3)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
+          updateJ(jsonAdd(sdocWithChildren("RDBQ5_2", v1018, 3)), params(DISTRIB_UPDATE_PARAM, FROM_LEADER));
         },
         () -> assertJQ(req("q", "*:*"), "/response/numFound==8") // RDBQ5_1+3children+RDBQ5_2+3children
     );
@@ -469,23 +496,43 @@ public class TestRecovery extends SolrTestCaseJ4 {
       int initialOps = bufferedOps.getValue();
       Meter applyingBuffered = (Meter)metrics.get("TLOG.applyingBuffered.ops");
       long initialApplyingOps = applyingBuffered.getCount();
+      
+      String v3 = getNextVersion();
+      String v940_del = "-" + getNextVersion();
+      String v950_del = "-" + getNextVersion();
+      String v1010 = getNextVersion();
+      String v1015 = getNextVersion();
+      String v1017_del = "-" + getNextVersion();
+      String v1020 = getNextVersion();
+      String v1030 = getNextVersion();
+      String v1040 = getNextVersion();
+      String v1050 = getNextVersion();
+      String v1060 = getNextVersion();
+      String v1070 = getNextVersion();
+      String v1080 = getNextVersion();
+      String v2010_del = "-" + getNextVersion();
+      String v2060_del = "-" + getNextVersion();
+      String v3000_del = "-" + getNextVersion();
+
+      String versionListFirstCheck = String.join(",", v2010_del, v1030, v1020, v1017_del, v1015, v1010);
+      String versionListSecondCheck = String.join(",", v3000_del, v1080, v1050, v1060, v940_del, v1040 ,v3, v2010_del, v1030, v1020, v1017_del, v1015, v1010);
 
       // simulate updates from a leader
-      updateJ(jsonAdd(sdoc("id","B1", "_version_","1010")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","B11", "_version_","1015")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonDelQ("id:B1 id:B11 id:B2 id:B3"), params(DISTRIB_UPDATE_PARAM,FROM_LEADER, "_version_","-1017"));
-      updateJ(jsonAdd(sdoc("id","B2", "_version_","1020")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","B3", "_version_","1030")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      deleteAndGetVersion("B1", params(DISTRIB_UPDATE_PARAM,FROM_LEADER, "_version_","-2010"));
+      updateJ(jsonAdd(sdoc("id","B1", "_version_",v1010)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","B11", "_version_",v1015)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonDelQ("id:B1 id:B11 id:B2 id:B3"), params(DISTRIB_UPDATE_PARAM,FROM_LEADER, "_version_",v1017_del));
+      updateJ(jsonAdd(sdoc("id","B2", "_version_",v1020)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","B3", "_version_",v1030)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      deleteAndGetVersion("B1", params(DISTRIB_UPDATE_PARAM,FROM_LEADER, "_version_",v2010_del));
 
       assertJQ(req("qt","/get", "getVersions","6")
-          ,"=={'versions':[-2010,1030,1020,-1017,1015,1010]}"
+          ,"=={'versions':["+versionListFirstCheck+"]}"
       );
 
       assertU(commit());
 
       assertJQ(req("qt","/get", "getVersions","6")
-          ,"=={'versions':[-2010,1030,1020,-1017,1015,1010]}"
+          ,"=={'versions':["+versionListFirstCheck+"]}"
       );
 
       // updates should be buffered, so we should not see any results yet.
@@ -515,7 +562,7 @@ public class TestRecovery extends SolrTestCaseJ4 {
       assertEquals(6L, applyingBuffered.getCount() - initialApplyingOps);
 
       assertJQ(req("qt","/get", "getVersions","6")
-          ,"=={'versions':[-2010,1030,1020,-1017,1015,1010]}"
+          ,"=={'versions':["+versionListFirstCheck+"]}"
       );
 
 
@@ -528,24 +575,24 @@ public class TestRecovery extends SolrTestCaseJ4 {
       assertEquals(UpdateLog.State.BUFFERING, ulog.getState());
 
       Long ver = getVer(req("qt","/get", "id","B3"));
-      assertEquals(1030L, ver.longValue());
+      assertEquals(Long.valueOf(v1030), ver);
 
       // add a reordered doc that shouldn't overwrite one in the index
-      updateJ(jsonAdd(sdoc("id","B3", "_version_","3")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","B3", "_version_",v3)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       // reorder two buffered updates
-      updateJ(jsonAdd(sdoc("id","B4", "_version_","1040")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      deleteAndGetVersion("B4", params(DISTRIB_UPDATE_PARAM,FROM_LEADER, "_version_","-940"));   // this update should not take affect
-      updateJ(jsonAdd(sdoc("id","B6", "_version_","1060")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","B5", "_version_","1050")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","B8", "_version_","1080")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","B4", "_version_",v1040)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      deleteAndGetVersion("B4", params(DISTRIB_UPDATE_PARAM,FROM_LEADER, "_version_",v940_del));   // this update should not take affect
+      updateJ(jsonAdd(sdoc("id","B6", "_version_",v1060)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","B5", "_version_",v1050)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","B8", "_version_",v1080)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       // test that delete by query is at least buffered along with everything else so it will delete the
       // currently buffered id:8 (even if it doesn't currently support versioning)
-      updateJ("{\"delete\": { \"query\":\"id:B2 OR id:B8\" }}", params(DISTRIB_UPDATE_PARAM,FROM_LEADER, "_version_","-3000"));
+      updateJ("{\"delete\": { \"query\":\"id:B2 OR id:B8\" }}", params(DISTRIB_UPDATE_PARAM,FROM_LEADER, "_version_",v3000_del));
 
       assertJQ(req("qt","/get", "getVersions","13")
-          ,"=={'versions':[-3000,1080,1050,1060,-940,1040,3,-2010,1030,1020,-1017,1015,1010]}"  // the "3" appears because versions aren't checked while buffering
+          ,"=={'versions':[" + versionListSecondCheck + "]}"  // the "3" appears because versions aren't checked while buffering
       );
 
       logReplay.drainPermits();
@@ -557,22 +604,22 @@ public class TestRecovery extends SolrTestCaseJ4 {
       logReplay.release(1);
 
       // now add another update
-      updateJ(jsonAdd(sdoc("id","B7", "_version_","1070")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","B7", "_version_",v1070)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       // a reordered update that should be dropped
-      deleteAndGetVersion("B5", params(DISTRIB_UPDATE_PARAM,FROM_LEADER, "_version_","-950"));
+      deleteAndGetVersion("B5", params(DISTRIB_UPDATE_PARAM,FROM_LEADER, "_version_",v950_del));
 
-      deleteAndGetVersion("B6", params(DISTRIB_UPDATE_PARAM,FROM_LEADER, "_version_","-2060"));
+      deleteAndGetVersion("B6", params(DISTRIB_UPDATE_PARAM,FROM_LEADER, "_version_",v2060_del));
 
       logReplay.release(1000);
       UpdateLog.RecoveryInfo recInfo = rinfoFuture.get();
 
       assertJQ(req("q", "*:*", "sort","id asc", "fl","id,_version_")
           , "/response/docs==["
-                           + "{'id':'B3','_version_':1030}"
-                           + ",{'id':'B4','_version_':1040}"
-                           + ",{'id':'B5','_version_':1050}"
-                           + ",{'id':'B7','_version_':1070}"
+                           + "{'id':'B3','_version_':"+v1030+"}"
+                           + ",{'id':'B4','_version_':"+v1040+"}"
+                           + ",{'id':'B5','_version_':"+v1050+"}"
+                           + ",{'id':'B7','_version_':"+v1070+"}"
                            +"]"
       );
 
@@ -615,6 +662,22 @@ public class TestRecovery extends SolrTestCaseJ4 {
     UpdateLog ulog = uhandler.getUpdateLog();
 
     try {
+      String v101 = getNextVersion();
+      String v102 = getNextVersion();
+      String v103 = getNextVersion();
+      String v104 = getNextVersion();
+      String v105 = getNextVersion();
+      String v200 = getNextVersion();
+      String v201 = getNextVersion();
+      String v203 = getNextVersion();
+      String v204 = getNextVersion();
+      String v205 = getNextVersion();
+      String v206 = getNextVersion();
+      String v301 = getNextVersion();
+      String v302 = getNextVersion();
+      String v998 = getNextVersion();
+      String v999 = getNextVersion();
+      
       clearIndex();
       assertU(commit());
 
@@ -629,14 +692,14 @@ public class TestRecovery extends SolrTestCaseJ4 {
       assertEquals(UpdateLog.State.BUFFERING, ulog.getState());
 
       // simulate updates from a leader
-      updateJ(jsonAdd(sdoc("id","C1", "_version_","101")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","C2", "_version_","102")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","C3", "_version_","103")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","C1", "_version_",v101)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","C2", "_version_",v102)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","C3", "_version_",v103)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       assertTrue(ulog.dropBufferedUpdates());
       ulog.bufferUpdates();
-      updateJ(jsonAdd(sdoc("id", "C4", "_version_","104")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id", "C5", "_version_","105")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id", "C4", "_version_",v104)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id", "C5", "_version_",v105)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       logReplay.release(1000);
       rinfoFuture = ulog.applyBufferedUpdates();
@@ -644,21 +707,21 @@ public class TestRecovery extends SolrTestCaseJ4 {
       assertEquals(2, rinfo.adds);
 
       assertJQ(req("qt","/get", "getVersions","2")
-          ,"=={'versions':[105,104]}"
+          ,"=={'versions':["+v105+","+v104+"]}"
       );
 
       // this time add some docs first before buffering starts (so tlog won't be at pos 0)
-      updateJ(jsonAdd(sdoc("id","C100", "_version_","200")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","C101", "_version_","201")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","C100", "_version_",v200)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","C101", "_version_",v201)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       ulog.bufferUpdates();
-      updateJ(jsonAdd(sdoc("id","C103", "_version_","203")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","C104", "_version_","204")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","C103", "_version_",v203)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","C104", "_version_",v204)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       assertTrue(ulog.dropBufferedUpdates());
       ulog.bufferUpdates();
-      updateJ(jsonAdd(sdoc("id","C105", "_version_","205")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","C106", "_version_","206")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","C105", "_version_",v205)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","C106", "_version_",v206)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       rinfoFuture = ulog.applyBufferedUpdates();
       rinfo = rinfoFuture.get();
@@ -666,45 +729,45 @@ public class TestRecovery extends SolrTestCaseJ4 {
 
       assertJQ(req("q", "*:*", "sort","_version_ asc", "fl","id,_version_")
           , "/response/docs==["
-          + "{'id':'C4','_version_':104}"
-          + ",{'id':'C5','_version_':105}"
-          + ",{'id':'C100','_version_':200}"
-          + ",{'id':'C101','_version_':201}"
-          + ",{'id':'C105','_version_':205}"
-          + ",{'id':'C106','_version_':206}"
+          + "{'id':'C4','_version_':"+v104+"}"
+          + ",{'id':'C5','_version_':"+v105+"}"
+          + ",{'id':'C100','_version_':"+v200+"}"
+          + ",{'id':'C101','_version_':"+v201+"}"
+          + ",{'id':'C105','_version_':"+v205+"}"
+          + ",{'id':'C106','_version_':"+v206+"}"
           +"]"
       );
 
       assertJQ(req("qt","/get", "getVersions","6")
-          ,"=={'versions':[206,205,201,200,105,104]}"
+          ,"=={'versions':["+String.join(",",v206,v205,v201,v200,v105,v104)+"]}"
       );
 
       ulog.bufferUpdates();
       assertEquals(UpdateLog.State.BUFFERING, ulog.getState());
-      updateJ(jsonAdd(sdoc("id","C301", "_version_","998")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","C302", "_version_","999")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","C301", "_version_",v998)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","C302", "_version_",v999)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
       assertTrue(ulog.dropBufferedUpdates());
 
       // make sure we can overwrite with a lower version
       // TODO: is this functionality needed?
-      updateJ(jsonAdd(sdoc("id","C301", "_version_","301")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","C302", "_version_","302")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","C301", "_version_",v301)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","C302", "_version_",v302)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       assertU(commit());
 
       assertJQ(req("qt","/get", "getVersions","2")
-          ,"=={'versions':[302,301]}"
+          ,"=={'versions':["+v302+","+v301+"]}"
       );
 
       assertJQ(req("q", "*:*", "sort","_version_ desc", "fl","id,_version_", "rows","2")
           , "/response/docs==["
-          + "{'id':'C302','_version_':302}"
-          + ",{'id':'C301','_version_':301}"
+          + "{'id':'C302','_version_':"+v302+"}"
+          + ",{'id':'C301','_version_':"+v301+"}"
           +"]"
       );
 
 
-      updateJ(jsonAdd(sdoc("id","C2", "_version_","302")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","C2", "_version_",v302)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
 
 
@@ -744,6 +807,18 @@ public class TestRecovery extends SolrTestCaseJ4 {
     Future<UpdateLog.RecoveryInfo> rinfoFuture;
 
     try {
+      String v101 = getNextVersion();
+      String v102 = getNextVersion();
+      String v103 = getNextVersion();
+      String v104 = getNextVersion();
+      String v105 = getNextVersion();
+      String v200 = getNextVersion();
+      String v201 = getNextVersion();
+      String v203 = getNextVersion();
+      String v204 = getNextVersion();
+      String v205 = getNextVersion();
+      String v206 = getNextVersion();
+      
       clearIndex();
       assertU(commit());
       assertEquals(UpdateLog.State.ACTIVE, ulog.getState());
@@ -752,16 +827,16 @@ public class TestRecovery extends SolrTestCaseJ4 {
       assertEquals(UpdateLog.State.BUFFERING, ulog.getState());
 
       // simulate updates from a leader
-      updateJ(jsonAdd(sdoc("id","c1", "_version_","101")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","c2", "_version_","102")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","c3", "_version_","103")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","c1", "_version_",v101)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","c2", "_version_",v102)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","c3", "_version_",v103)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       // call bufferUpdates again (this currently happens when recovery fails)... we should get a new starting point
       ulog.bufferUpdates();
       assertEquals(UpdateLog.State.BUFFERING, ulog.getState());
 
-      updateJ(jsonAdd(sdoc("id", "c4", "_version_","104")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id", "c5", "_version_","105")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id", "c4", "_version_",v104)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id", "c5", "_version_",v105)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       logReplay.release(1000);
       rinfoFuture = ulog.applyBufferedUpdates();
@@ -769,21 +844,21 @@ public class TestRecovery extends SolrTestCaseJ4 {
       assertEquals(2, rinfo.adds);
 
       assertJQ(req("qt","/get", "getVersions","2")
-          ,"=={'versions':[105,104]}"
+          ,"=={'versions':["+v105+","+v104+"]}"
       );
 
       // this time add some docs first before buffering starts (so tlog won't be at pos 0)
-      updateJ(jsonAdd(sdoc("id","c100", "_version_","200")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","c101", "_version_","201")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","c100", "_version_",v200)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","c101", "_version_",v201)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       ulog.bufferUpdates();
-      updateJ(jsonAdd(sdoc("id","c103", "_version_","203")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","c104", "_version_","204")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","c103", "_version_",v203)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","c104", "_version_",v204)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       // call bufferUpdates again (this currently happens when recovery fails)... we should get a new starting point
       ulog.bufferUpdates();
-      updateJ(jsonAdd(sdoc("id","c105", "_version_","205")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","c106", "_version_","206")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","c105", "_version_",v205)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","c106", "_version_",v206)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       rinfoFuture = ulog.applyBufferedUpdates();
       rinfo = rinfoFuture.get();
@@ -791,19 +866,19 @@ public class TestRecovery extends SolrTestCaseJ4 {
 
       assertJQ(req("q", "*:*", "sort","_version_ asc", "fl","id,_version_")
           , "/response/docs==["
-              + "{'id':'c4','_version_':104}"
-              + ",{'id':'c5','_version_':105}"
-              + ",{'id':'c100','_version_':200}"
-              + ",{'id':'c101','_version_':201}"
-              + ",{'id':'c105','_version_':205}"
-              + ",{'id':'c106','_version_':206}"
-              +"]"
+              + "{'id':'c4','_version_':"+v104+"}"
+              + ",{'id':'c5','_version_':"+v105+"}"
+              + ",{'id':'c100','_version_':"+v200+"}"
+              + ",{'id':'c101','_version_':"+v201+"}"
+              + ",{'id':'c105','_version_':"+v205+"}"
+              + ",{'id':'c106','_version_':"+v206+"}"
++""              +"]"
       );
 
       // The updates that were buffered (but never applied) still appear in recent versions!
       // This is good for some uses, but may not be good for others.
       assertJQ(req("qt","/get", "getVersions","11")
-          ,"=={'versions':[206,205,204,203,201,200,105,104,103,102,101]}"
+          ,"=={'versions':["+String.join(",",v206,v205,v204,v203,v201,v200,v105,v104,v103,v102,v101)+"]}"
       );
 
       assertEquals(UpdateLog.State.ACTIVE, ulog.getState()); // leave each test method in a good state
@@ -864,6 +939,14 @@ public class TestRecovery extends SolrTestCaseJ4 {
     UpdateLog ulog = uhandler.getUpdateLog();
 
     try {
+      String v101 = getNextVersion();
+      String v102 = getNextVersion();
+      String v103 = getNextVersion();
+      String v114 = getNextVersion();
+      String v115 = getNextVersion();
+      String v116 = getNextVersion();
+      String v117 = getNextVersion();
+      
       clearIndex();
       assertU(commit());
 
@@ -871,9 +954,9 @@ public class TestRecovery extends SolrTestCaseJ4 {
       ulog.bufferUpdates();
 
       // simulate updates from a leader
-      updateJ(jsonAdd(sdoc("id","Q1", "_version_","101")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","Q2", "_version_","102")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","Q3", "_version_","103")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","Q1", "_version_",v101)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","Q2", "_version_",v102)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","Q3", "_version_",v103)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
       assertEquals(UpdateLog.State.BUFFERING, ulog.getState());
 
       req.close();
@@ -903,9 +986,9 @@ public class TestRecovery extends SolrTestCaseJ4 {
       assertTrue((ulog.getStartingOperation() & UpdateLog.FLAG_GAP) != 0);
 
       // now do some normal non-buffered adds
-      updateJ(jsonAdd(sdoc("id","Q4", "_version_","114")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","Q5", "_version_","115")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","Q6", "_version_","116")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","Q4", "_version_",v114)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","Q5", "_version_",v115)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","Q6", "_version_",v116)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
       assertU(commit());
 
       req.close();
@@ -921,7 +1004,7 @@ public class TestRecovery extends SolrTestCaseJ4 {
       ulog.bufferUpdates();
       // simulate receiving no updates
       ulog.applyBufferedUpdates();
-      updateJ(jsonAdd(sdoc("id","Q7", "_version_","117")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER)); // do another add to make sure flags are back to normal
+      updateJ(jsonAdd(sdoc("id","Q7", "_version_",v117)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER)); // do another add to make sure flags are back to normal
 
       req.close();
       h.close();
@@ -950,26 +1033,29 @@ public class TestRecovery extends SolrTestCaseJ4 {
   // make sure that on a restart, versions don't start too low
   @Test
   public void testVersionsOnRestart() throws Exception {
+    String v1 = getNextVersion();
+    String v2 = getNextVersion();
+    
     clearIndex();
     assertU(commit());
 
-    assertU(adoc("id","D1", "val_i","1"));
-    assertU(adoc("id","D2", "val_i","1"));
+    assertU(adoc("id","D1", "val_i",v1));
+    assertU(adoc("id","D2", "val_i",v1));
     assertU(commit());
-    long v1 = getVer(req("q","id:D1"));
-    long v1a = getVer(req("q","id:D2"));
+    long D1Version1 = getVer(req("q","id:D1"));
+    long D2Version1 = getVer(req("q","id:D2"));
 
     h.close();
     createCore();
 
-    assertU(adoc("id","D1", "val_i","2"));
+    assertU(adoc("id","D1", "val_i",v2));
     assertU(commit());
-    long v2 = getVer(req("q","id:D1"));
+    long D1Version2 = getVer(req("q","id:D1"));
 
-    assert(v2 > v1);
+    assert(D1Version2 > D1Version1);
 
     assertJQ(req("qt","/get", "getVersions","2")
-        ,"/versions==[" + v2 + "," + v1a + "]"
+        ,"/versions==[" + D1Version2 + "," + D2Version1 + "]"
     );
 
   }
@@ -997,11 +1083,13 @@ public class TestRecovery extends SolrTestCaseJ4 {
     UpdateLog ulog = uhandler.getUpdateLog();
 
     try {
+      String v1 = getNextVersion();
+      
       clearIndex();
       assertU(commit());
 
-      assertU(adoc("id","E1", "val_i","1"));
-      assertU(adoc("id","E2", "val_i","1"));
+      assertU(adoc("id","E1", "val_i",v1));
+      assertU(adoc("id","E2", "val_i",v1));
 
       // set to a high enough number so this test won't hang on a bug
       logReplay.release(10);
@@ -1203,13 +1291,17 @@ public class TestRecovery extends SolrTestCaseJ4 {
       // Now test that the bad log file doesn't mess up retrieving latest versions
       //
 
-      updateJ(jsonAdd(sdoc("id","F4", "_version_","104")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","F5", "_version_","105")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","F6", "_version_","106")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      String v104 = getNextVersion();
+      String v105 = getNextVersion();
+      String v106 = getNextVersion();
+      
+      updateJ(jsonAdd(sdoc("id","F4", "_version_",v104)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","F5", "_version_",v105)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","F6", "_version_",v106)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       // This currently skips the bad log file and also returns the version of the clearIndex (del *:*)
       // assertJQ(req("qt","/get", "getVersions","6"), "/versions==[106,105,104]");
-      assertJQ(req("qt","/get", "getVersions","3"), "/versions==[106,105,104]");
+      assertJQ(req("qt","/get", "getVersions","3"), "/versions==["+v106+","+v105+","+v104+"]");
 
     } finally {
       DirectUpdateHandler2.commitOnClose = true;
@@ -1259,14 +1351,16 @@ public class TestRecovery extends SolrTestCaseJ4 {
       //
       // Now test that the bad log file doesn't mess up retrieving latest versions
       //
+      String v104 = getNextVersion();
+      String v105 = getNextVersion();
+      String v106 = getNextVersion();
 
-      updateJ(jsonAdd(sdoc("id","G4", "_version_","104")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","G5", "_version_","105")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
-      updateJ(jsonAdd(sdoc("id","G6", "_version_","106")), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","G4", "_version_",v104)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","G5", "_version_",v105)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
+      updateJ(jsonAdd(sdoc("id","G6", "_version_",v106)), params(DISTRIB_UPDATE_PARAM,FROM_LEADER));
 
       // This currently skips the bad log file and also returns the version of the clearIndex (del *:*)
-      // assertJQ(req("qt","/get", "getVersions","6"), "/versions==[106,105,104]");
-      assertJQ(req("qt","/get", "getVersions","3"), "/versions==[106,105,104]");
+      assertJQ(req("qt","/get", "getVersions","3"), "/versions==["+v106+","+v105+","+v104+"]");
 
       assertU(commit());
 
@@ -1554,5 +1648,13 @@ public class TestRecovery extends SolrTestCaseJ4 {
 
     return (Long)doc.get("_version_");
   }
+  
+  static class VersionProvider{
+    private static long version = 0;
+    
+    static String getNextVersion() {
+      return Long.toString(version++);
+    }
+  }
 }