Author: svn-role
Date: Tue Jun 23 04:00:52 2015
New Revision: 1686967

URL: http://svn.apache.org/r1686967
Log:
Merge r1683378 from trunk:

 * r1683378
   Prevent a possible FSFS repository corruption with power or network disk
   failures during 'svnadmin pack'.
   Justification:
     Repository corruption/data loss.
   Note:
     This is not regression since 1.8.x and change can be released in patch
     release.
   Votes:
     +1: ivan, stefan2, rhuijben

Modified:
    subversion/branches/1.9.x/   (props changed)
    subversion/branches/1.9.x/STATUS
    subversion/branches/1.9.x/subversion/libsvn_fs_fs/pack.c
    subversion/branches/1.9.x/subversion/libsvn_fs_fs/revprops.c

Propchange: subversion/branches/1.9.x/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Tue Jun 23 04:00:52 2015
@@ -93,4 +93,4 @@
 /subversion/branches/verify-at-commit:1462039-1462408
 /subversion/branches/verify-keep-going:1439280-1546110
 /subversion/branches/wc-collate-path:1402685-1480384
-/subversion/trunk:1660545-1660547,1660549-1662901,1663003,1663183-1663184,1663338,1663347,1663355,1663374,1663450,1663530,1663671,1663697,1663706,1663738,1663749,1663791,1663991,1664035,1664078,1664080,1664084-1664085,1664187,1664191,1664193,1664200,1664344,1664476,1664480-1664481,1664483,1664489-1664490,1664507,1664520-1664521,1664523,1664526-1664527,1664531-1664532,1664588,1664593-1664594,1664596,1664653,1664664,1664672,1664674,1664684,1664927,1664938-1664940,1664978,1664984,1664997,1665164,1665195,1665213,1665259,1665318,1665437-1665438,1665609,1665611-1665612,1665845,1665850,1665852,1665886,1665894,1665896,1666096,1666258,1666270,1666272,1666379,1666449,1666690,1666832,1666851,1666965,1667101,1667106-1667107,1667120,1667228,1667233-1667235,1667249-1667250,1667258,1667290,1667301,1667471,1667691-1667693,1667699-1667700,1667715,1667941,1667976,1668320,1668598-1668600,1668602-1668603,1668607-1668608,1668618,1669743,1669746,1669749,1669945,1670139,1670149,1670152,1670329,1670337,167
 
0347,1670353,1671164,1671388,1672295,1672311,1672372,1672404,1672511-1672512,1672578,1672728,1673044,1673062-1673063,1673065,1673153,1673170,1673172,1673197,1673202,1673204,1673228,1673282,1673445,1673691-1673692,1673746,1673785,1673803,1674015,1674032,1674170,1674301,1674305,1674308,1674339-1674340,1674406,1674415,1674455-1674456,1674475,1674487,1674522,1674580,1674627,1674891,1675771,1675774,1676526,1676535,1676538,1676555,1676564,1676570,1676665,1676667,1676769,1677003,1677191,1677267,1677440,1678147,1678149,1678494,1678571,1678734,1678742,1678745-1678746,1678839,1678846,1678894,1678950,1678963,1679166,1679169,1679228,1679230,1679287,1679864,1679866,1679909,1680242,1680264,1680495,1680705,1680819,1681317,1683071,1683303,1683311,1683387,1684034,1684077,1684322,1684325,1684344,1684412
+/subversion/trunk:1660545-1660547,1660549-1662901,1663003,1663183-1663184,1663338,1663347,1663355,1663374,1663450,1663530,1663671,1663697,1663706,1663738,1663749,1663791,1663991,1664035,1664078,1664080,1664084-1664085,1664187,1664191,1664193,1664200,1664344,1664476,1664480-1664481,1664483,1664489-1664490,1664507,1664520-1664521,1664523,1664526-1664527,1664531-1664532,1664588,1664593-1664594,1664596,1664653,1664664,1664672,1664674,1664684,1664927,1664938-1664940,1664978,1664984,1664997,1665164,1665195,1665213,1665259,1665318,1665437-1665438,1665609,1665611-1665612,1665845,1665850,1665852,1665886,1665894,1665896,1666096,1666258,1666270,1666272,1666379,1666449,1666690,1666832,1666851,1666965,1667101,1667106-1667107,1667120,1667228,1667233-1667235,1667249-1667250,1667258,1667290,1667301,1667471,1667691-1667693,1667699-1667700,1667715,1667941,1667976,1668320,1668598-1668600,1668602-1668603,1668607-1668608,1668618,1669743,1669746,1669749,1669945,1670139,1670149,1670152,1670329,1670337,167
 
0347,1670353,1671164,1671388,1672295,1672311,1672372,1672404,1672511-1672512,1672578,1672728,1673044,1673062-1673063,1673065,1673153,1673170,1673172,1673197,1673202,1673204,1673228,1673282,1673445,1673691-1673692,1673746,1673785,1673803,1674015,1674032,1674170,1674301,1674305,1674308,1674339-1674340,1674406,1674415,1674455-1674456,1674475,1674487,1674522,1674580,1674627,1674891,1675771,1675774,1676526,1676535,1676538,1676555,1676564,1676570,1676665,1676667,1676769,1677003,1677191,1677267,1677440,1678147,1678149,1678494,1678571,1678734,1678742,1678745-1678746,1678839,1678846,1678894,1678950,1678963,1679166,1679169,1679228,1679230,1679287,1679864,1679866,1679909,1680242,1680264,1680495,1680705,1680819,1681317,1683071,1683303,1683311,1683378,1683387,1684034,1684077,1684322,1684325,1684344,1684412

Modified: subversion/branches/1.9.x/STATUS
URL: 
http://svn.apache.org/viewvc/subversion/branches/1.9.x/STATUS?rev=1686967&r1=1686966&r2=1686967&view=diff
==============================================================================
--- subversion/branches/1.9.x/STATUS (original)
+++ subversion/branches/1.9.x/STATUS Tue Jun 23 04:00:52 2015
@@ -82,14 +82,3 @@ Veto-blocked changes:
 
 Approved changes:
 =================
-
- * r1683378
-   Prevent a possible FSFS repository corruption with power or network disk
-   failures during 'svnadmin pack'.
-   Justification:
-     Repository corruption/data loss.
-   Note:
-     This is not regression since 1.8.x and change can be released in patch
-     release.
-   Votes:
-     +1: ivan, stefan2, rhuijben

Modified: subversion/branches/1.9.x/subversion/libsvn_fs_fs/pack.c
URL: 
http://svn.apache.org/viewvc/subversion/branches/1.9.x/subversion/libsvn_fs_fs/pack.c?rev=1686967&r1=1686966&r2=1686967&view=diff
==============================================================================
--- subversion/branches/1.9.x/subversion/libsvn_fs_fs/pack.c (original)
+++ subversion/branches/1.9.x/subversion/libsvn_fs_fs/pack.c Tue Jun 23 
04:00:52 2015
@@ -384,6 +384,8 @@ close_pack_context(pack_context_t *conte
   SVN_ERR(svn_io_remove_file2(proto_l2p_index_path, FALSE, pool));
   SVN_ERR(svn_io_remove_file2(proto_p2l_index_path, FALSE, pool));
 
+  /* Ensure that packed file is written to disk.*/
+  SVN_ERR(svn_io_file_flush_to_disk(context->pack_file, pool));
   SVN_ERR(svn_io_file_close(context->pack_file, pool));
 
   return SVN_NO_ERROR;
@@ -1656,7 +1658,9 @@ pack_phys_addressed(const char *pack_fil
                     apr_pool_t *pool)
 {
   const char *pack_file_path, *manifest_file_path;
-  svn_stream_t *pack_stream, *manifest_stream;
+  apr_file_t *pack_file;
+  apr_file_t *manifest_file;
+  svn_stream_t *manifest_stream;
   svn_revnum_t end_rev, rev;
   apr_off_t next_offset;
   apr_pool_t *iterpool;
@@ -1665,13 +1669,18 @@ pack_phys_addressed(const char *pack_fil
   pack_file_path = svn_dirent_join(pack_file_dir, PATH_PACKED, pool);
   manifest_file_path = svn_dirent_join(pack_file_dir, PATH_MANIFEST, pool);
 
-  /* Create the new directory and pack file. */
-  SVN_ERR(svn_stream_open_writable(&pack_stream, pack_file_path, pool,
-                                    pool));
+  /* Create the new directory and pack file.
+   * Use unbuffered apr_file_t since we're going to write using 16kb
+   * chunks. */
+  SVN_ERR(svn_io_file_open(&pack_file, pack_file_path,
+                           APR_WRITE | APR_CREATE | APR_EXCL,
+                           APR_OS_DEFAULT, pool));
 
   /* Create the manifest file. */
-  SVN_ERR(svn_stream_open_writable(&manifest_stream, manifest_file_path,
-                                   pool, pool));
+  SVN_ERR(svn_io_file_open(&manifest_file, manifest_file_path,
+                           APR_WRITE | APR_BUFFERED | APR_CREATE | APR_EXCL,
+                           APR_OS_DEFAULT, pool));
+  manifest_stream = svn_stream_from_aprfile2(manifest_file, TRUE, pool);
 
   end_rev = start_rev + max_files_per_dir - 1;
   next_offset = 0;
@@ -1698,16 +1707,24 @@ pack_phys_addressed(const char *pack_fil
 
       /* Copy all the bits from the rev file to the end of the pack file. */
       SVN_ERR(svn_stream_open_readonly(&rev_stream, path, iterpool, iterpool));
-      SVN_ERR(svn_stream_copy3(rev_stream, svn_stream_disown(pack_stream,
-                                                             iterpool),
+      SVN_ERR(svn_stream_copy3(rev_stream,
+                               svn_stream_from_aprfile2(pack_file, TRUE, pool),
                                cancel_func, cancel_baton, iterpool));
     }
 
-  /* disallow write access to the manifest file */
+  /* Close stream over APR file. */
   SVN_ERR(svn_stream_close(manifest_stream));
+
+  /* Ensure that pack file is written to disk. */
+  SVN_ERR(svn_io_file_flush_to_disk(manifest_file, pool));
+  SVN_ERR(svn_io_file_close(manifest_file, pool));
+
+  /* disallow write access to the manifest file */
   SVN_ERR(svn_io_set_file_read_only(manifest_file_path, FALSE, iterpool));
 
-  SVN_ERR(svn_stream_close(pack_stream));
+  /* Ensure that pack file is written to disk. */
+  SVN_ERR(svn_io_file_flush_to_disk(pack_file, pool));
+  SVN_ERR(svn_io_file_close(pack_file, pool));
 
   svn_pool_destroy(iterpool);
 

Modified: subversion/branches/1.9.x/subversion/libsvn_fs_fs/revprops.c
URL: 
http://svn.apache.org/viewvc/subversion/branches/1.9.x/subversion/libsvn_fs_fs/revprops.c?rev=1686967&r1=1686966&r2=1686967&view=diff
==============================================================================
--- subversion/branches/1.9.x/subversion/libsvn_fs_fs/revprops.c (original)
+++ subversion/branches/1.9.x/subversion/libsvn_fs_fs/revprops.c Tue Jun 23 
04:00:52 2015
@@ -1175,7 +1175,6 @@ svn_fs_fs__copy_revprops(const char *pac
   apr_file_t *pack_file;
   svn_revnum_t rev;
   apr_pool_t *iterpool = svn_pool_create(scratch_pool);
-  svn_stream_t *stream;
 
   /* create empty data buffer and a write stream on top of it */
   svn_stringbuf_t *uncompressed
@@ -1199,6 +1198,7 @@ svn_fs_fs__copy_revprops(const char *pac
   for (rev = start_rev; rev <= end_rev; rev++)
     {
       const char *path;
+      svn_stream_t *stream;
 
       svn_pool_clear(iterpool);
 
@@ -1220,9 +1220,10 @@ svn_fs_fs__copy_revprops(const char *pac
   SVN_ERR(svn__compress(uncompressed, compressed, compression_level));
 
   /* write the pack file content to disk */
-  stream = svn_stream_from_aprfile2(pack_file, FALSE, scratch_pool);
-  SVN_ERR(svn_stream_write(stream, compressed->data, &compressed->len));
-  SVN_ERR(svn_stream_close(stream));
+  SVN_ERR(svn_io_file_write_full(pack_file, compressed->data, compressed->len,
+                                 NULL, scratch_pool));
+  SVN_ERR(svn_io_file_flush_to_disk(pack_file, scratch_pool));
+  SVN_ERR(svn_io_file_close(pack_file, scratch_pool));
 
   svn_pool_destroy(iterpool);
 
@@ -1241,6 +1242,7 @@ svn_fs_fs__pack_revprops_shard(const cha
                                apr_pool_t *scratch_pool)
 {
   const char *manifest_file_path, *pack_filename = NULL;
+  apr_file_t *manifest_file;
   svn_stream_t *manifest_stream;
   svn_revnum_t start_rev, end_rev, rev;
   apr_off_t total_size;
@@ -1257,8 +1259,12 @@ svn_fs_fs__pack_revprops_shard(const cha
 
   /* Create the new directory and manifest file stream. */
   SVN_ERR(svn_io_dir_make(pack_file_dir, APR_OS_DEFAULT, scratch_pool));
-  SVN_ERR(svn_stream_open_writable(&manifest_stream, manifest_file_path,
-                                   scratch_pool, scratch_pool));
+
+  SVN_ERR(svn_io_file_open(&manifest_file, manifest_file_path,
+                           APR_WRITE | APR_BUFFERED | APR_CREATE | APR_EXCL,
+                           APR_OS_DEFAULT, scratch_pool));
+  manifest_stream = svn_stream_from_aprfile2(manifest_file, TRUE,
+                                             scratch_pool);
 
   /* revisions to handle. Special case: revision 0 */
   start_rev = (svn_revnum_t) (shard * max_files_per_dir);
@@ -1325,8 +1331,10 @@ svn_fs_fs__pack_revprops_shard(const cha
                                      compression_level, cancel_func,
                                      cancel_baton, iterpool));
 
-  /* flush the manifest file and update permissions */
+  /* flush the manifest file to disk and update permissions */
   SVN_ERR(svn_stream_close(manifest_stream));
+  SVN_ERR(svn_io_file_flush_to_disk(manifest_file, iterpool));
+  SVN_ERR(svn_io_file_close(manifest_file, iterpool));
   SVN_ERR(svn_io_copy_perms(shard_path, pack_file_dir, iterpool));
 
   svn_pool_destroy(iterpool);


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