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Posted to oak-commits@jackrabbit.apache.org by re...@apache.org on 2020/04/27 18:07:09 UTC

svn commit: r1877087 - in /jackrabbit/oak/branches/1.8: ./ oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/

Author: reschke
Date: Mon Apr 27 18:07:09 2020
New Revision: 1877087

URL: http://svn.apache.org/viewvc?rev=1877087&view=rev
Log:
OAK-8918: RDBBlobStore: warn when legacy (SQLServer) default collation is active (merged r1874271 into 1.8)

Modified:
    jackrabbit/oak/branches/1.8/   (props changed)
    jackrabbit/oak/branches/1.8/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBBlobStore.java
    jackrabbit/oak/branches/1.8/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBBlobStoreDB.java

Propchange: jackrabbit/oak/branches/1.8/
------------------------------------------------------------------------------
  Merged /jackrabbit/oak/trunk:r1874271

Modified: jackrabbit/oak/branches/1.8/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBBlobStore.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.8/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBBlobStore.java?rev=1877087&r1=1877086&r2=1877087&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.8/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBBlobStore.java (original)
+++ jackrabbit/oak/branches/1.8/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBBlobStore.java Mon Apr 27 18:07:09 2020
@@ -255,6 +255,11 @@ public class RDBBlobStore extends Cachin
                         + (options.isDropTablesOnClose() ? " (will be dropped on exit)" : ""));
             }
 
+            String moreDiags = db.evaluateDiagnostics(diag);
+            if (moreDiags != null) {
+                LOG.info(moreDiags);
+            }
+
             this.callStack = LOG.isDebugEnabled() ? new Exception("call stack of RDBBlobStore creation") : null;
         } finally {
             closeStatement(createStatement);

Modified: jackrabbit/oak/branches/1.8/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBBlobStoreDB.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.8/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBBlobStoreDB.java?rev=1877087&r1=1877086&r2=1877087&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.8/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBBlobStoreDB.java (original)
+++ jackrabbit/oak/branches/1.8/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBBlobStoreDB.java Mon Apr 27 18:07:09 2020
@@ -18,9 +18,11 @@ package org.apache.jackrabbit.oak.plugin
 
 import java.sql.DatabaseMetaData;
 import java.sql.SQLException;
+import java.util.Locale;
 import java.util.Map;
 
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -74,6 +76,18 @@ public enum RDBBlobStoreDB {
                     + ") not null, LVL int, LASTMOD bigint "
                     + "constraint "  + tableName + "_PK primary key clustered (ID ASC))";
         }
+
+        @Override
+        @Nullable
+        public String evaluateDiagnostics(Map<String, String> diags) {
+            String collation = diags.get("collation_name");
+            if (collation != null && collation.toLowerCase(Locale.ENGLISH).startsWith("sql")) {
+                return "Default server collation is: '" + collation
+                        + "'. There's a risk of performance degradation; see https://issues.apache.org/jira/browse/OAK-8908 for more information.";
+            } else {
+                return null;
+            }
+        }
     },
 
     MYSQL("MySQL", RDBCommonVendorSpecificCode.MYSQL) {
@@ -153,6 +167,11 @@ public enum RDBBlobStoreDB {
         return vendorCode.getAdditionalDiagnostics(ch, tableName);
     }
 
+    @Nullable
+    public String evaluateDiagnostics(Map<String, String> diags) {
+        return null;
+    }
+
     @Override
     public String toString() {
         return this.description;