From 8fb593b8401801e8854f22fe7d80906a35aa9924 Mon Sep 17 00:00:00 2001
From: "tomas@whalegate.ndb.mysql.com" <>
Date: Thu, 23 Aug 2007 16:13:21 +0200
Subject: [PATCH] BUG#30017 log-slave-updates incorrect behavior for cluster -
 let the receiving injector thread decide what to do (recommit for 5.1.22
 target)

---
 sql/ha_ndbcluster.cc        | 50 +++++++++++++++++++++++++++----------
 sql/ha_ndbcluster_binlog.cc | 13 ++++++++++
 2 files changed, 50 insertions(+), 13 deletions(-)

diff --git a/sql/ha_ndbcluster.cc b/sql/ha_ndbcluster.cc
index 3b68b3828d2..be19e891e57 100644
--- a/sql/ha_ndbcluster.cc
+++ b/sql/ha_ndbcluster.cc
@@ -2812,11 +2812,17 @@ int ha_ndbcluster::write_row(uchar *record)
 
   if (unlikely(m_slow_path))
   {
+    /*
+      ignore TNTO_NO_LOGGING for slave thd.  It is used to indicate
+      log-slave-updates option.  This is instead handled in the
+      injector thread, by looking explicitly at the
+      opt_log_slave_updates flag.
+    */
     Thd_ndb *thd_ndb= get_thd_ndb(thd);
-    if (thd_ndb->trans_options & TNTO_NO_LOGGING)
-      op->setAnyValue(NDB_ANYVALUE_FOR_NOLOGGING);
-    else if (thd->slave_thread)
+    if (thd->slave_thread)
       op->setAnyValue(thd->server_id);
+    else if (thd_ndb->trans_options & TNTO_NO_LOGGING)
+      op->setAnyValue(NDB_ANYVALUE_FOR_NOLOGGING);
   }
   m_rows_changed++;
 
@@ -3102,11 +3108,17 @@ int ha_ndbcluster::update_row(const uchar *old_data, uchar *new_data)
 
   if (unlikely(m_slow_path))
   {
+    /*
+      ignore TNTO_NO_LOGGING for slave thd.  It is used to indicate
+      log-slave-updates option.  This is instead handled in the
+      injector thread, by looking explicitly at the
+      opt_log_slave_updates flag.
+    */
     Thd_ndb *thd_ndb= get_thd_ndb(thd);
-    if (thd_ndb->trans_options & TNTO_NO_LOGGING)
-      op->setAnyValue(NDB_ANYVALUE_FOR_NOLOGGING);
-    else if (thd->slave_thread)
+    if (thd->slave_thread)
       op->setAnyValue(thd->server_id);
+    else if (thd_ndb->trans_options & TNTO_NO_LOGGING)
+      op->setAnyValue(NDB_ANYVALUE_FOR_NOLOGGING);
   }
   /*
     Execute update operation if we are not doing a scan for update
@@ -3170,13 +3182,19 @@ int ha_ndbcluster::delete_row(const uchar *record)
 
     if (unlikely(m_slow_path))
     {
+      /*
+        ignore TNTO_NO_LOGGING for slave thd.  It is used to indicate
+        log-slave-updates option.  This is instead handled in the
+        injector thread, by looking explicitly at the
+        opt_log_slave_updates flag.
+      */
       Thd_ndb *thd_ndb= get_thd_ndb(thd);
-      if (thd_ndb->trans_options & TNTO_NO_LOGGING)
-        ((NdbOperation *)trans->getLastDefinedOperation())->
-          setAnyValue(NDB_ANYVALUE_FOR_NOLOGGING);
-      else if (thd->slave_thread)
+      if (thd->slave_thread)
         ((NdbOperation *)trans->getLastDefinedOperation())->
           setAnyValue(thd->server_id);
+      else if (thd_ndb->trans_options & TNTO_NO_LOGGING)
+        ((NdbOperation *)trans->getLastDefinedOperation())->
+          setAnyValue(NDB_ANYVALUE_FOR_NOLOGGING);
     }
     if (!(m_primary_key_update || m_delete_cannot_batch))
       // If deleting from cursor, NoCommit will be handled in next_result
@@ -3210,11 +3228,17 @@ int ha_ndbcluster::delete_row(const uchar *record)
 
     if (unlikely(m_slow_path))
     {
+      /*
+        ignore TNTO_NO_LOGGING for slave thd.  It is used to indicate
+        log-slave-updates option.  This is instead handled in the
+        injector thread, by looking explicitly at the
+        opt_log_slave_updates flag.
+      */
       Thd_ndb *thd_ndb= get_thd_ndb(thd);
-      if (thd_ndb->trans_options & TNTO_NO_LOGGING)
-        op->setAnyValue(NDB_ANYVALUE_FOR_NOLOGGING);
-      else if (thd->slave_thread)
+      if (thd->slave_thread)
         op->setAnyValue(thd->server_id);
+      else if (thd_ndb->trans_options & TNTO_NO_LOGGING)
+        op->setAnyValue(NDB_ANYVALUE_FOR_NOLOGGING);
     }
   }
 
diff --git a/sql/ha_ndbcluster_binlog.cc b/sql/ha_ndbcluster_binlog.cc
index c91faac388f..468adba0aa0 100644
--- a/sql/ha_ndbcluster_binlog.cc
+++ b/sql/ha_ndbcluster_binlog.cc
@@ -114,6 +114,9 @@ NDB_SHARE *ndb_apply_status_share= 0;
 NDB_SHARE *ndb_schema_share= 0;
 pthread_mutex_t ndb_schema_share_mutex;
 
+extern my_bool opt_log_slave_updates;
+static my_bool g_ndb_log_slave_updates;
+
 /* Schema object distribution handling */
 HASH ndb_schema_objects;
 typedef struct st_ndb_schema_object {
@@ -3296,6 +3299,14 @@ ndb_binlog_thread_handle_data_event(Ndb *ndb, NdbEventOperation *pOp,
                         originating_server_id);
     return 0;
   }
+  else if (!g_ndb_log_slave_updates)
+  {
+    /*
+      This event comes from a slave applier since it has an originating
+      server id set. Since option to log slave updates is not set, skip it.
+    */
+    return 0;
+  }
 
   TABLE *table= share->table;
   DBUG_ASSERT(trans.good());
@@ -3942,6 +3953,8 @@ restart:
                     ! IS_NDB_BLOB_PREFIX(pOp->getEvent()->getTable()->getName()));
         DBUG_ASSERT(gci <= ndb_latest_received_binlog_epoch);
 
+        /* initialize some variables for this epoch */
+        g_ndb_log_slave_updates= opt_log_slave_updates;
         i_ndb->
           setReportThreshEventGCISlip(ndb_report_thresh_binlog_epoch_slip);
         i_ndb->setReportThreshEventFreeMem(ndb_report_thresh_binlog_mem_usage);