refs #5146, add test exposing bug

git-svn-id: file:///svn/toku/tokudb@44970 c7de825b-a66e-492c-adef-691d508d4ae1

src/tests/CMakeLists.txt

@@ -111,6 +111,7 @@ if(BUILD_TESTING)
       queries_with_deletes.c
       recover-2483.c
       recover-3113.c
+      recover-5146.c
       recover-compare-db.c
       recover-compare-db-descriptor.c
       recover-del-multiple.c

src/tests/recover-5146.c

+/* -*- mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+// vim: expandtab:ts=8:sw=4:softtabstop=4:
+#ident "Copyright (c) 2007 Tokutek Inc.  All rights reserved."
+#ident "$Id: recover-3113.c 43762 2012-05-22 16:17:53Z yfogel $"
+#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 DB_ENV *env;
+static BOOL do_test=FALSE, do_recover=FALSE;
+
+static void checkpoint_callback_2(void * UU(extra)) {
+    toku_hard_crash_on_purpose();
+}
+
+
+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);
+
+    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, 0);                                  CKERR(r);
+        u_int8_t gid[DB_GID_SIZE];
+        memset(gid, 0, DB_GID_SIZE);
+        gid[0]=42;
+        r = txn->prepare(txn, gid);                                                            CKERR(r);
+    }
+
+    r = env->txn_checkpoint(env, 0, 0, 0);                                              CKERR(r);
+
+    DB_TXN *txn2;
+    {
+        r = env->txn_begin(env, NULL, &txn2, 0);                                         CKERR(r);
+        DBT k={.data="b", .size=2};
+        DBT v={.data="b", .size=2};
+        r = db->put(db, txn2, &k, &v, 0);                                  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 run_recover (void) {
+    int r;
+    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;
+}
+