#4685 get the hot indexer to work with txn's in the preparing state closes[t:4685]

git-svn-id: file:///svn/toku/tokudb@41614 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/txn.h

@@ -127,14 +127,7 @@ int  toku_txn_ignore_add(TOKUTXN txn, FILENUM filenum);
 int  toku_txn_ignore_remove(TOKUTXN txn, FILENUM filenum);
 int  toku_txn_ignore_contains(TOKUTXN txn, FILENUM filenum);
 
-enum tokutxn_state {
-    TOKUTXN_LIVE,         // initial txn state
-    TOKUTXN_PREPARING,    // txn is preparing (or prepared)
-    TOKUTXN_COMMITTING,   // txn in the process of committing
-    TOKUTXN_ABORTING,     // txn in the process of aborting
-    TOKUTXN_RETIRED,      // txn no longer exists
-};
-typedef enum tokutxn_state TOKUTXN_STATE;
+#include "txn_state.h"
 
 TOKUTXN_STATE toku_txn_get_state(TOKUTXN txn);
 

newbrt/txn_state.h

+#if !defined(TOKUTXN_STATE_H)
+#define TOKUTXN_STATE_H
+
+// this is a separate file so that the hotindexing tests can see the txn states
+
+enum tokutxn_state {
+    TOKUTXN_LIVE,         // initial txn state
+    TOKUTXN_PREPARING,    // txn is preparing (or prepared)
+    TOKUTXN_COMMITTING,   // txn in the process of committing
+    TOKUTXN_ABORTING,     // txn in the process of aborting
+    TOKUTXN_RETIRED,      // txn no longer exists
+};
+typedef enum tokutxn_state TOKUTXN_STATE;
+
+#endif

src/indexer-internal.h

@@ -10,6 +10,8 @@
 #ifndef TOKU_INDEXER_INTERNAL_H
 #define TOKU_INDEXER_INTERNAL_H
 
+#include "txn_state.h"
+
 // the indexer_commit_keys is an ordered set of keys described by a DBT in the keys array.
 // the array is a resizeable array with max size "max_keys" and current size "current_keys".
 // the ordered set is used by the hotindex undo function to collect the commit keys.
@@ -42,7 +44,7 @@ struct __toku_indexer_internal {
 
     // test functions
     int (*undo_do)(DB_INDEXER *indexer, DB *hotdb, ULEHANDLE ule);
-    int (*test_xid_state)(DB_INDEXER *indexer, TXNID xid);
+    TOKUTXN_STATE (*test_xid_state)(DB_INDEXER *indexer, TXNID xid);
     int (*test_lock_key)(DB_INDEXER *indexer, TXNID xid, DB *hotdb, DBT *key);
     int (*test_delete_provisional)(DB_INDEXER *indexer, DB *hotdb, DBT *hotkey, XIDS xids);
     int (*test_delete_committed)(DB_INDEXER *indexer, DB *hotdb, DBT *hotkey, XIDS xids);

src/indexer-undo-do.c

 /* -*- mode: C; c-basic-offset: 4 -*- */
 /*
- * Copyright (c) 2010-2011 Tokutek Inc.  All rights reserved.
+ * Copyright (c) 2010-2012 Tokutek Inc.  All rights reserved.
  * The technology is licensed by the Massachusetts Institute of Technology, 
  * Rutgers State University of New Jersey, and the Research Foundation of 
  * State University of New York at Stony Brook under United States of America 
@@ -52,8 +52,7 @@ static void
 indexer_commit_keys_add(struct indexer_commit_keys *keys, size_t length, void *ptr) {
     if (keys->current_keys >= keys->max_keys) {
         int new_max_keys = keys->max_keys == 0 ? 256 : keys->max_keys * 2;
-        keys->keys = (DBT *) toku_realloc(keys->keys, new_max_keys * sizeof (DBT));
-        resource_assert(keys->keys);
+        keys->keys = (DBT *) toku_xrealloc(keys->keys, new_max_keys * sizeof (DBT));
         for (int i = keys->current_keys; i < new_max_keys; i++)
             toku_init_dbt_flags(&keys->keys[i], DB_DBT_REALLOC);
         keys->max_keys = new_max_keys;
@@ -125,7 +124,7 @@ indexer_undo_do_committed(DB_INDEXER *indexer, DB *hotdb, ULEHANDLE ule) {
 
         // placeholders in the committed stack are not allowed
         if (uxr_is_placeholder(uxr))
-            invariant(0);
+            assert(0);
 
         // undo
         if (xrindex > 0) {
@@ -143,7 +142,7 @@ indexer_undo_do_committed(DB_INDEXER *indexer, DB *hotdb, ULEHANDLE ule) {
                         indexer_commit_keys_add(&indexer->i->commit_keys, indexer->i->hotkey.size, indexer->i->hotkey.data);
                 }
             } else
-                invariant(0);
+                assert(0);
         }
         if (result != 0)
             break;
@@ -161,7 +160,7 @@ indexer_undo_do_committed(DB_INDEXER *indexer, DB *hotdb, ULEHANDLE ule) {
                     indexer_commit_keys_add(&indexer->i->commit_keys, indexer->i->hotkey.size, indexer->i->hotkey.data);
             }
         } else
-            invariant(0);
+            assert(0);
 
         // send commit messages if needed
         for (int i = 0; result == 0 && i < indexer_commit_keys_valid(&indexer->i->commit_keys); i++) 
@@ -206,13 +205,26 @@ indexer_undo_do_provisional(DB_INDEXER *indexer, DB *hotdb, ULEHANDLE ule) {
             outermost_xid = this_xid;
             outermost_xid_state = this_xid_state;
             result = indexer_set_xid(indexer, this_xid, &xids);    // always add the outermost xid to the XIDS list
-        } else if (this_xid_state == TOKUTXN_LIVE)
-            result = indexer_append_xid(indexer, this_xid, &xids); // append a live xid to the XIDS list
+        } else {
+            switch (this_xid_state) {
+            case TOKUTXN_LIVE:
+                result = indexer_append_xid(indexer, this_xid, &xids); // append a live xid to the XIDS list
+                break;
+            case TOKUTXN_PREPARING:
+                assert(0); // not allowed
+            case TOKUTXN_COMMITTING:
+            case TOKUTXN_ABORTING:
+            case TOKUTXN_RETIRED:
+                break; // nothing to do
+            }
+        }
         if (result != 0)
             break;
 
-        if (outermost_xid_state != TOKUTXN_LIVE && xrindex > num_committed)
-            invariant(this_xid_state == TOKUTXN_RETIRED);
+        if (outermost_xid_state != TOKUTXN_LIVE && xrindex > num_committed) {
+            // if the outermost is not live, then the inner state must be retired.  thats the way that the txn API works.
+            assert(this_xid_state == TOKUTXN_RETIRED);
+        }
 
         if (uxr_is_placeholder(uxr))
             continue;         // skip placeholders
@@ -229,20 +241,26 @@ indexer_undo_do_provisional(DB_INDEXER *indexer, DB *hotdb, ULEHANDLE ule) {
                 result = indexer_generate_hot_key_val(indexer, hotdb, ule, prevuxr, &indexer->i->hotkey, NULL);
                 if (result == 0) {
                     // send the delete message
-                    if (outermost_xid_state == TOKUTXN_LIVE) {
-                        invariant(this_xid_state != TOKUTXN_ABORTING);
+                    switch (outermost_xid_state) {
+                    case TOKUTXN_LIVE:
+                    case TOKUTXN_PREPARING:
+                        assert(this_xid_state != TOKUTXN_ABORTING);
                         result = indexer_brt_delete_provisional(indexer, hotdb, &indexer->i->hotkey, xids);
                         if (result == 0)
                             result = indexer_lock_key(indexer, hotdb, &indexer->i->hotkey, outermost_xid);
-                    } else {
-                        invariant(outermost_xid_state == TOKUTXN_RETIRED || outermost_xid_state == TOKUTXN_COMMITTING);
+                        break;
+                    case TOKUTXN_COMMITTING:
+                    case TOKUTXN_RETIRED:
                         result = indexer_brt_delete_committed(indexer, hotdb, &indexer->i->hotkey, xids);
                         if (result == 0)
                             indexer_commit_keys_add(&indexer->i->commit_keys, indexer->i->hotkey.size, indexer->i->hotkey.data);
+                        break;
+                    case TOKUTXN_ABORTING: // can not happen since we stop processing the leaf entry if the outer most xr is aborting
+                        assert(0);
                     }
                 }
             } else
-                invariant(0);
+                assert(0);
         }
         if (result != 0)
             break;
@@ -255,23 +273,27 @@ indexer_undo_do_provisional(DB_INDEXER *indexer, DB *hotdb, ULEHANDLE ule) {
             result = indexer_generate_hot_key_val(indexer, hotdb, ule, uxr, &indexer->i->hotkey, &indexer->i->hotval);
             if (result == 0) {
                 // send the insert message
-                if (outermost_xid_state == TOKUTXN_LIVE) {
-                    invariant(this_xid_state != TOKUTXN_ABORTING);
+                switch (outermost_xid_state) {
+                case TOKUTXN_LIVE:
+                case TOKUTXN_PREPARING:
+                    assert(this_xid_state != TOKUTXN_ABORTING);
                     result = indexer_brt_insert_provisional(indexer, hotdb, &indexer->i->hotkey, &indexer->i->hotval, xids);
                     if (result == 0) 
                         result = indexer_lock_key(indexer, hotdb, &indexer->i->hotkey, outermost_xid);
-                } else {
-                    invariant(outermost_xid_state == TOKUTXN_RETIRED || outermost_xid_state == TOKUTXN_COMMITTING);
+                    break;
+                case TOKUTXN_COMMITTING:
+                case TOKUTXN_RETIRED:
                     result = indexer_brt_insert_committed(indexer, hotdb, &indexer->i->hotkey, &indexer->i->hotval, xids);
-#if 0
                     // no need to do this because we do implicit commits on inserts
-                    if (result == 0)
+                    if (0 && result == 0)
                         indexer_commit_keys_add(&indexer->i->commit_keys, indexer->i->hotkey.size, indexer->i->hotkey.data);
-#endif
+                    break;
+                case TOKUTXN_ABORTING: // can not happen since we stop processing the leaf entry if the outer most xr is aborting
+                    assert(0);
                 }
             }
         } else
-            invariant(0);
+            assert(0);
 
         if (result != 0)
             break;
@@ -360,24 +382,19 @@ indexer_generate_hot_key_val(DB_INDEXER *indexer, DB *hotdb, ULEHANDLE ule, UXRH
 // then return TOKUTXN_RETIRED.
 static TOKUTXN_STATE
 indexer_xid_state(DB_INDEXER *indexer, TXNID xid) {
-    TOKUTXN_STATE result = TOKUTXN_RETIRED;
+    TOKUTXN_STATE result;
     // TEST
     if (indexer->i->test_xid_state) {
-        int r = indexer->i->test_xid_state(indexer, xid);
-        switch (r) {
-        case 0: result = TOKUTXN_LIVE; break;
-        case 1: result = TOKUTXN_COMMITTING; break;
-        case 2: result = TOKUTXN_ABORTING; break;
-        case 3: result = TOKUTXN_RETIRED; break;
-        default: assert(0); break;
-        }
+        result = indexer->i->test_xid_state(indexer, xid);
     } else {
         DB_ENV *env = indexer->i->env;
         TOKUTXN txn = NULL;
         int r = toku_txnid2txn(env->i->logger, xid, &txn);
-        invariant(r == 0);
+        assert(r == 0);
         if (txn) 
             result = toku_txn_get_state(txn);
+        else 
+            result = TOKUTXN_RETIRED;
     }
     return result;
 }
@@ -393,7 +410,7 @@ indexer_lock_key(DB_INDEXER *indexer, DB *hotdb, DBT *key, TXNID outermost_live_
         DB_ENV *env = indexer->i->env;
         TOKUTXN txn = NULL;
         result = toku_txnid2txn(env->i->logger, outermost_live_xid, &txn);
-        invariant(result == 0 && txn != NULL);
+        assert(result == 0 && txn != NULL);
         result = toku_grab_write_lock(hotdb, key, txn);
     }
     return result;
@@ -404,7 +421,7 @@ indexer_lock_key(DB_INDEXER *indexer, DB *hotdb, DBT *key, TXNID outermost_live_
 // return FALSE.
 static BOOL
 indexer_find_prev_xr(DB_INDEXER *UU(indexer), ULEHANDLE ule, uint64_t xrindex, uint64_t *prev_xrindex) {
-    invariant(xrindex < ule_num_uxrs(ule));
+    assert(xrindex < ule_num_uxrs(ule));
     BOOL  prev_found = FALSE;
     while (xrindex > 0) {
         xrindex -= 1;
@@ -427,7 +444,7 @@ indexer_get_innermost_live_txn(DB_INDEXER *indexer, XIDS xids) {
     TXNID xid = xids_get_xid(xids, (u_int8_t)(num_xids-1));
     TOKUTXN txn = NULL;
     int result = toku_txnid2txn(env->i->logger, xid, &txn);
-    invariant(result == 0);
+    assert(result == 0);
     return txn;
 }
 
@@ -443,7 +460,7 @@ indexer_brt_delete_provisional(DB_INDEXER *indexer, DB *hotdb, DBT *hotkey, XIDS
         result = toku_ydb_check_avail_fs_space(indexer->i->env);
         if (result == 0) {
             TOKUTXN txn = indexer_get_innermost_live_txn(indexer, xids);
-            invariant(txn != NULL);
+            assert(txn != NULL);
             result = toku_brt_maybe_delete (hotdb->i->brt, hotkey, txn, FALSE, ZERO_LSN, TRUE);
         }
     }
@@ -477,7 +494,7 @@ indexer_brt_insert_provisional(DB_INDEXER *indexer, DB *hotdb, DBT *hotkey, DBT
         result = toku_ydb_check_avail_fs_space(indexer->i->env);
         if (result == 0) {
             TOKUTXN txn = indexer_get_innermost_live_txn(indexer, xids);
-            invariant(txn != NULL);
+            assert(txn != NULL);
             result = toku_brt_maybe_insert (hotdb->i->brt, hotkey, hotval, txn, FALSE, ZERO_LSN, TRUE, BRT_INSERT);
         }
     }

src/tests/hotindexer-undo-do-test.c

+/* -*- mode: C; c-basic-offset: 4 -*- */
+/*
+ * Copyright (c) 2010-2012 Tokutek Inc.  All rights reserved.
+ * The technology is licensed by the Massachusetts Institute of Technology, 
+ * Rutgers State University of New Jersey, and the Research Foundation of 
+ * State University of New York at Stony Brook under United States of America 
+ * Serial No. 11/760379 and to the patents and/or patent applications resulting from it.
+ */
+#ident "$Id$"
+
 // test the hotindexer undo do function
 // read a description of the live transactions and a leafentry from a test file, run the undo do function,
 // and print out the actions taken by the undo do function while processing the leafentry
@@ -15,10 +25,6 @@
 #include "indexer-internal.h"
 #include "xids-internal.h"
 
-typedef enum {
-    TOKUTXN_LIVE, TOKUTXN_COMMITTING, TOKUTXN_ABORTING, TOKUTXN_RETIRED,
-} TOKUTXN_STATE; // see txn.h
-
 struct txn {
     TXNID xid;
     TOKUTXN_STATE state;
@@ -53,7 +59,7 @@ live_add(struct live *live, TXNID xid, TOKUTXN_STATE state) {
 }
 
 static int
-txn_state(struct live *live, TXNID xid) {
+lookup_txn_state(struct live *live, TXNID xid) {
     int r = TOKUTXN_RETIRED;
     for (int i = 0; i < live->o; i++) {
         if (live->txns[i].xid == xid) {
@@ -196,10 +202,10 @@ put_callback(DB *dest_db, DB *src_db, DBT *dest_key, DBT *dest_data, const DBT *
 static DB_INDEXER *test_indexer = NULL;
 static DB *test_hotdb = NULL;
 
-static int
+static TOKUTXN_STATE
 test_xid_state(DB_INDEXER *indexer, TXNID xid) {
     invariant(indexer == test_indexer);
-    int r = txn_state(&live_xids, xid);
+    TOKUTXN_STATE r = lookup_txn_state(&live_xids, xid);
     return r;
 }
 
@@ -207,7 +213,8 @@ static int
 test_lock_key(DB_INDEXER *indexer, TXNID xid, DB *hotdb, DBT *key) {
     invariant(indexer == test_indexer);
     invariant(hotdb == test_hotdb);
-    invariant(test_xid_state(indexer, xid) == TOKUTXN_LIVE);
+    TOKUTXN_STATE txn_state = test_xid_state(indexer, xid);
+    invariant(txn_state == TOKUTXN_LIVE || txn_state == TOKUTXN_PREPARING);
     printf("lock [%lu] ", xid);
     print_dbt(key);
     printf("\n");
@@ -342,6 +349,8 @@ read_test(char *testname, ULE ule) {
                 TOKUTXN_STATE state = TOKUTXN_RETIRED;
                 if (strcmp(fields[2], "live") == 0)
                     state = TOKUTXN_LIVE;
+                else if (strcmp(fields[2], "preparing") == 0)
+                    state = TOKUTXN_PREPARING;
                 else if (strcmp(fields[2], "committing") == 0)
                     state = TOKUTXN_COMMITTING;
                 else if (strcmp(fields[2], "aborting") == 0)

src/tests/hotindexer-undo-do-tests/README

@@ -37,7 +37,7 @@ live <XIDLIST>
 
 the live transaction set is initially empty
 
-xid <XID> [live|committing|aborting]
+xid <XID> [live|preparing|committing|aborting]
 
 == push a delete transaction record onto the leaf entry stack ==
 delete [committed|provisional] <XID>

src/tests/hotindexer-undo-do-tests/prov.preparing.d0.i100.result

+insert_provisional [100] v100 k1 
+lock [100] v100 

src/tests/hotindexer-undo-do-tests/prov.preparing.d0.i100.test

+xid 100 preparing
+key k1
+delete committed 0
+insert provisional 100 v100

src/tests/hotindexer-undo-do-tests/prov.preparing.d0.i200.i201.result

+insert_provisional [200] v200 k1 
+lock [200] v200 
+delete_provisional [200] v200 
+lock [200] v200 
+insert_provisional [200] v201 k1 
+lock [200] v201 

src/tests/hotindexer-undo-do-tests/prov.preparing.d0.i200.i201.test

+xid 200 preparing
+key k1
+delete committed 0
+insert provisional 200 v200
+insert provisional 201 v201

src/tests/run-hotindexer-undo-do-tests.bash

@@ -5,6 +5,7 @@
 tests=""
 verbose=0
 valgrind=""
+exitcode=0
 
 for arg in $* ; do 
     if [[ $arg =~ --(.*)=(.*) ]] ; then