[t:3113] Add test recover-3113.

git-svn-id: file:///svn/toku/tokudb@27358 c7de825b-a66e-492c-adef-691d508d4ae1

src/tests/Makefile

@@ -141,6 +141,7 @@ BDB_DONTRUN_TESTS = \
         progress \
 	put-multiple \
         recover-2483 \
+        recover-3113 \
         recover-compare-db \
         recover-compare-db-descriptor \
 	recover-del-multiple \

src/tests/recover-3113.c

+/* -*- mode: C; c-basic-offset: 4 -*- */
+#ident "Copyright (c) 2007 Tokutek Inc.  All rights reserved."
+#ident "$Id: checkpoint_1.c 23046 2010-08-19 19:15:04Z bkuszmaul $"
+#include "test.h"
+#include <db.h>
+#include <sys/stat.h>
+
+
+/*****************
+ * Purpose: Verify fix for 3113
+ * Bug:     Rollback log is checkpointed along with other cachefiles,
+ *          but system crashes before checkpoint_end is written to recovery log.
+ *          When recovery runs, it uses latest rollback log, which is out of synch
+ *          with recovery log.  Latest version of rollback log would be correct for 
+ *          last checkpoint if it completed, but version of rollback log needed
+ *          is for last complete checkpoint.
+ * Fix:     When opening rollback log for recovery, do not use latest, but use 
+ *          latest that is no newer than last complete checkpoint.
+ * Test:    begin txn
+ *          insert
+ *          commit
+ *          complete checkpoint (no live txns in checkpoint)
+ *          begin txn
+ *          insert
+ *          begin checkpoint (txn in checkpointed rollback log)
+ *          crash using callback2 (just before checkpoint_end is written to disk)
+ *          attempt to recover, should crash with 3113
+ */        
+
+static const int envflags = DB_INIT_MPOOL|DB_CREATE|DB_THREAD |DB_INIT_LOCK|DB_INIT_LOG|DB_INIT_TXN|DB_PRIVATE;
+static char *namea="a.db";
+static void checkpoint_callback_2(void * UU(extra));
+static DB_ENV *env;
+static BOOL do_test=FALSE, do_recover=FALSE;
+
+static void
+run_test(void) {
+    int r;
+
+    r = system("rm -rf " ENVDIR);
+    CKERR(r);
+    toku_os_mkdir(ENVDIR, S_IRWXU+S_IRWXG+S_IRWXO);
+
+    r = db_env_create(&env, 0);                                                         CKERR(r);
+    r = env->open(env, ENVDIR, envflags, S_IRWXU+S_IRWXG+S_IRWXO);                      CKERR(r);
+    
+    DB *db;
+    r = db_create(&db, env, 0);                                                         CKERR(r);
+    r = db->open(db, NULL, namea, NULL, DB_BTREE, DB_AUTO_COMMIT|DB_CREATE, 0666);      CKERR(r);
+
+    // txn_begin; insert <a,a>; txn_abort
+    {
+        DB_TXN *txn;
+        r = env->txn_begin(env, NULL, &txn, 0);                                         CKERR(r);
+	DBT k={.data="a", .size=2};
+	DBT v={.data="a", .size=2};
+	r = db->put(db, txn, &k, &v, DB_YESOVERWRITE);                                  CKERR(r);
+        r = txn->commit(txn, 0);                                                            CKERR(r);
+    }
+
+    // checkpoint, no live txns in rollback log
+    r = env->txn_checkpoint(env, 0, 0, 0);                                              CKERR(r);
+
+    {
+        DB_TXN *txn;
+        r = env->txn_begin(env, NULL, &txn, 0);                                         CKERR(r);
+	DBT k={.data="b", .size=2};
+	DBT v={.data="b", .size=2};
+	r = db->put(db, txn, &k, &v, DB_YESOVERWRITE);                                  CKERR(r);
+    }
+
+    // cause crash at next checkpoint, after xstillopen written, before checkpoint_end is written
+    db_env_set_checkpoint_callback2(checkpoint_callback_2, NULL);
+
+    // checkpoint, putting xstillopen in recovery log (txn is still active)
+    r = env->txn_checkpoint(env, 0, 0, 0);                                              CKERR(r);
+
+}
+ 
+
+static void checkpoint_callback_2(void * UU(extra)) {
+    toku_hard_crash_on_purpose();
+}
+
+
+static void run_recover (void) {
+    int r;
+
+    // Recovery starts from oldest_living_txn, which is older than any inserts done in run_test,
+    // so recovery always runs over the entire log.
+
+    // run recovery
+    r = db_env_create(&env, 0);                                                         CKERR(r);
+    r = env->open(env, ENVDIR, envflags + DB_RECOVER, S_IRWXU+S_IRWXG+S_IRWXO);         CKERR(r);
+    r = env->close(env, 0);                                                             CKERR(r);
+    exit(0);
+
+}
+
+static void test_parse_args (int argc, char * const argv[]) {
+    int resultcode;
+    char * cmd = argv[0];
+    argc--; argv++;
+    while (argc>0) {
+	if (strcmp(argv[0], "-v") == 0) {
+	    verbose++;
+	} else if (strcmp(argv[0],"-q")==0) {
+	    verbose--;
+	    if (verbose<0) verbose=0;
+	} else if (strcmp(argv[0], "--test")==0) {
+	    do_test=TRUE;
+        } else if (strcmp(argv[0], "--recover") == 0) {
+            do_recover=TRUE;
+	} else if (strcmp(argv[0], "-h")==0) {
+	    resultcode=0;
+	do_usage:
+	    fprintf(stderr, "Usage:\n%s [-v|-q]* [-h] {--test | --recover } \n", cmd);
+	    exit(resultcode);
+	} else {
+	    fprintf(stderr, "Unknown arg: %s\n", argv[0]);
+	    resultcode=1;
+	    goto do_usage;
+	}
+	argc--;
+	argv++;
+    }
+}
+
+
+
+int
+test_main (int argc, char * const argv[]) {
+    test_parse_args(argc, argv);
+
+    if (do_test)
+	run_test();
+    else if (do_recover)
+	run_recover();
+
+    return 0;
+}
+