Import wiredtiger-wiredtiger-2.7.0-505-g7fea169.tar.gz from wiredtiger branch mongodb-3.4

ref: 44463c5..7fea169

WT-2355       Fix minor scratch buffer usage in logging.
WT-2348       xargs -P isn't portable
WT-2347       Java: schema format edge cases
WT-2344       OS X compiler warning
WT-2342       Enhance wtperf to support background create and drop operations
WT-2340       Add logging guarantee assertions, whitespace
WT-2339       format post-rebalance verify failure (stress run #11586)
WT-2338       Disable using pre-allocated log files when backup cursor is open
WT-2335       NULL pointer crash in config_check_search with invalid configuration string
WT-2333       Add a flag so drop doesn't block
WT-2332       Bug in logging write-no-sync mode
WT-2331       Checking of search() result for reference cursors before join()
WT-2328       schema drop does direct unlink, it should use a block manager interface.
WT-2326       Change WTPERF to use new memory allocation functions instead of the standard
WT-2321       WT-2321: race between eviction and worker threads on the eviction queue
WT-2320       Only check copyright when cutting releases
WT-2316       stress test failure: WT_CURSOR.prev out-of-order returns
WT-2314       page-swap error handling is inconsistent
WT-2313       sweep-server: conn_dhandle.c, 610: dhandle != conn->cache->evict_file_next
WT-2312       re-creating a deleted column-store page can corrupt the in-memory tree
WT-2308       custom extractor for ref_cursors in join cursor
WT-2305       Fix coverity scan issues on 23/12/2015
WT-2296       New log algorithm needs improving for sync/flush settings
WT-2295       WT_SESSION.create does a full-scan of the main table
WT-2287       WT_SESSION.rebalance
WT-2275       broken DB after application crash
WT-2267       Improve wtperf throttling implementation to provide steady load
WT-2247       variable-length column-store in-memory page splits
WT-2242       WiredTiger treats dead trees the same as other trees in eviction
WT-2142       Connection cleanup in Python tests
WT-2073       metadata cleanups
WT-1801       Add a directory sync after rollback of a WT_SESSION::rename operation
WT-1517       schema format edge cases
SERVER-22064  Coverity analysis defect 77699: Unchecked return value
SERVER-21619  sys-perf: WT crash during core_workloads_WT execution

31 files changed, 48 insertions, 40 deletions

diff --git a/src/third_party/wiredtiger/src/os_posix/os_abort.c b/src/third_party/wiredtiger/src/os_posix/os_abort.c
index 5bb6aeb6e16..034eedcfbf8 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_abort.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_abort.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_alloc.c b/src/third_party/wiredtiger/src/os_posix/os_alloc.c
index eb2482723ec..3876f9a1afe 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_alloc.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_alloc.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_dir.c b/src/third_party/wiredtiger/src/os_posix/os_dir.c
index 9eba641ca51..83e77aa5312 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_dir.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_dir.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_dlopen.c b/src/third_party/wiredtiger/src/os_posix/os_dlopen.c
index 2b5fa249163..9a74eb4813d 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_dlopen.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_dlopen.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_errno.c b/src/third_party/wiredtiger/src/os_posix/os_errno.c
index 229b68e0008..a58ae88447e 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_errno.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_errno.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_exist.c b/src/third_party/wiredtiger/src/os_posix/os_exist.c
index 644a27dca9a..87f0e219d2e 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_exist.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_exist.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_fallocate.c b/src/third_party/wiredtiger/src/os_posix/os_fallocate.c
index 6280e334afb..9d160afd179 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_fallocate.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_fallocate.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_filesize.c b/src/third_party/wiredtiger/src/os_posix/os_filesize.c
index c58f73b0665..72242e351bf 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_filesize.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_filesize.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_flock.c b/src/third_party/wiredtiger/src/os_posix/os_flock.c
index 07393481e7d..e2056f7636c 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_flock.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_flock.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_fsync.c b/src/third_party/wiredtiger/src/os_posix/os_fsync.c
index b0c04e98258..f5afddc557b 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_fsync.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_fsync.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
@@ -75,12 +75,13 @@ __wt_directory_sync_fh(WT_SESSION_IMPL *session, WT_FH *fh)
  *	Flush a directory to ensure a file creation is durable.
  */
 int
-__wt_directory_sync(WT_SESSION_IMPL *session, char *path)
+__wt_directory_sync(WT_SESSION_IMPL *session, const char *path)
 {
 #ifdef __linux__
 	WT_DECL_RET;
 	int fd, tret;
-	char *dir;
+	const char *dir;
+	char *copy;
 
 	/*
 	 * POSIX 1003.1 does not require that fsync of a file handle ensures the
@@ -88,15 +89,22 @@ __wt_directory_sync(WT_SESSION_IMPL *session, char *path)
 	 * there are historic Linux filesystems requiring this), do an explicit
 	 * fsync on a file descriptor for the directory to be sure.
 	 */
-	if (path == NULL || (dir = strrchr(path, '/')) == NULL) {
-		dir = NULL;
-		path = (char *)S2C(session)->home;
-	} else
-		*dir = '\0';
+	copy = NULL;
+	if (path == NULL || (dir = strrchr(path, '/')) == NULL)
+		path = S2C(session)->home;
+	else {
+		/*
+		 * Copy the directory name, leaving the trailing slash in place,
+		 * so a path of "/foo" doesn't result in an empty string.
+		 */
+		WT_RET(__wt_strndup(
+		    session, path, (size_t)(dir - path) + 1, &copy));
+		path = copy;
+	}
+
 	WT_SYSCALL_RETRY(((fd =
 	    open(path, O_RDONLY, 0444)) == -1 ? 1 : 0), ret);
-	if (dir != NULL)
-		*dir = '/';
+	__wt_free(session, copy);
 	if (ret != 0)
 		WT_RET_MSG(session, ret, "%s: open", path);
 
diff --git a/src/third_party/wiredtiger/src/os_posix/os_ftruncate.c b/src/third_party/wiredtiger/src/os_posix/os_ftruncate.c
index 696d8da54f4..2af90512f26 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_ftruncate.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_ftruncate.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_getenv.c b/src/third_party/wiredtiger/src/os_posix/os_getenv.c
index e1e0051a120..7a086145cee 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_getenv.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_getenv.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_getline.c b/src/third_party/wiredtiger/src/os_posix/os_getline.c
index 7c4ee8d1746..c0ca96852de 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_getline.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_getline.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_getopt.c b/src/third_party/wiredtiger/src/os_posix/os_getopt.c
index 486d85286bc..0306ad1d79d 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_getopt.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_getopt.c
@@ -1,5 +1,5 @@
 /*-
- * Public Domain 2014-2015 MongoDB, Inc.
+ * Public Domain 2014-2016 MongoDB, Inc.
  * Public Domain 2008-2014 WiredTiger, Inc.
  *
  * This is free and unencumbered software released into the public domain.
diff --git a/src/third_party/wiredtiger/src/os_posix/os_map.c b/src/third_party/wiredtiger/src/os_posix/os_map.c
index 4276c89dbcf..42aeeac4a5e 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_map.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_map.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_mtx_cond.c b/src/third_party/wiredtiger/src/os_posix/os_mtx_cond.c
index d5fc86b648b..5f4e9a7cf2b 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_mtx_cond.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_mtx_cond.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_mtx_rw.c b/src/third_party/wiredtiger/src/os_posix/os_mtx_rw.c
index 46f134feabb..b6876cdfbdc 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_mtx_rw.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_mtx_rw.c
@@ -1,5 +1,5 @@
 /*-
- * Public Domain 2014-2015 MongoDB, Inc.
+ * Public Domain 2014-2016 MongoDB, Inc.
  * Public Domain 2008-2014 WiredTiger, Inc.
  *
  * This is free and unencumbered software released into the public domain.
diff --git a/src/third_party/wiredtiger/src/os_posix/os_once.c b/src/third_party/wiredtiger/src/os_posix/os_once.c
index bfe0b9819ac..8d900042330 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_once.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_once.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_open.c b/src/third_party/wiredtiger/src/os_posix/os_open.c
index a87272db391..b085676c53b 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_open.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_open.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_pagesize.c b/src/third_party/wiredtiger/src/os_posix/os_pagesize.c
index e7c7b4fdf15..4a7e7084cc6 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_pagesize.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_pagesize.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_path.c b/src/third_party/wiredtiger/src/os_posix/os_path.c
index af28e1b3b56..6dc54675eb8 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_path.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_path.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_priv.c b/src/third_party/wiredtiger/src/os_posix/os_priv.c
index a8479668d67..5ffbbf7a1f2 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_priv.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_priv.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_remove.c b/src/third_party/wiredtiger/src/os_posix/os_remove.c
index 96bbba9bab2..bc244c12e46 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_remove.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_remove.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_rename.c b/src/third_party/wiredtiger/src/os_posix/os_rename.c
index 811604e7f0f..301190305c4 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_rename.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_rename.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_rw.c b/src/third_party/wiredtiger/src/os_posix/os_rw.c
index 24d6d1aa879..8733bfe0f53 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_rw.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_rw.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_sleep.c b/src/third_party/wiredtiger/src/os_posix/os_sleep.c
index 4e90edabc53..8633b8d1ec0 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_sleep.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_sleep.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_stdio.c b/src/third_party/wiredtiger/src/os_posix/os_stdio.c
index da880f5521e..7ab107eda1e 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_stdio.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_stdio.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_strtouq.c b/src/third_party/wiredtiger/src/os_posix/os_strtouq.c
index 0b7a540959c..0ae604fc761 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_strtouq.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_strtouq.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_thread.c b/src/third_party/wiredtiger/src/os_posix/os_thread.c
index c7222aac6c4..35a23622ddc 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_thread.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_thread.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_time.c b/src/third_party/wiredtiger/src/os_posix/os_time.c
index c3052df62e7..0e5a1cdadfb 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_time.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_time.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *
diff --git a/src/third_party/wiredtiger/src/os_posix/os_yield.c b/src/third_party/wiredtiger/src/os_posix/os_yield.c
index 297ec7deaee..052a46940b7 100644
--- a/src/third_party/wiredtiger/src/os_posix/os_yield.c
+++ b/src/third_party/wiredtiger/src/os_posix/os_yield.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2014-2015 MongoDB, Inc.
+ * Copyright (c) 2014-2016 MongoDB, Inc.
  * Copyright (c) 2008-2014 WiredTiger, Inc.
  *	All rights reserved.
  *