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Commit97b23c4

Browse files
committed
Merge branch 'master' into release_2_5
2 parentsda2cbcb +6e8e948 commit97b23c4

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3 files changed

+107
-43
lines changed

3 files changed

+107
-43
lines changed

‎src/utils/file.c‎

Lines changed: 39 additions & 42 deletions
Original file line numberDiff line numberDiff line change
@@ -777,6 +777,34 @@ fio_fwrite(FILE* f, void const* buf, size_t size)
777777
returnfwrite(buf,1,size,f);
778778
}
779779

780+
/*
781+
* Write buffer to descriptor by calling write(),
782+
* If size of written data is less than buffer size,
783+
* then try to write what is left.
784+
* We do this to get honest errno if there are some problems
785+
* with filesystem, since writing less than buffer size
786+
* is not considered an error.
787+
*/
788+
staticssize_t
789+
durable_write(intfd,constchar*buf,size_tsize)
790+
{
791+
off_tcurrent_pos=0;
792+
size_tbytes_left=size;
793+
794+
while (bytes_left>0)
795+
{
796+
intrc=write(fd,buf+current_pos,bytes_left);
797+
798+
if (rc <=0)
799+
returnrc;
800+
801+
bytes_left-=rc;
802+
current_pos+=rc;
803+
}
804+
805+
returnsize;
806+
}
807+
780808
/* Write data to the file synchronously */
781809
ssize_t
782810
fio_write(intfd,voidconst*buf,size_tsize)
@@ -806,7 +834,7 @@ fio_write(int fd, void const* buf, size_t size)
806834
}
807835
else
808836
{
809-
returnwrite(fd,buf,size);
837+
returndurable_write(fd,buf,size);
810838
}
811839
}
812840

@@ -816,7 +844,7 @@ fio_write_impl(int fd, void const* buf, size_t size, int out)
816844
intrc;
817845
fio_headerhdr;
818846

819-
rc=write(fd,buf,size);
847+
rc=durable_write(fd,buf,size);
820848

821849
hdr.arg=0;
822850
hdr.size=0;
@@ -838,34 +866,6 @@ fio_fwrite_async(FILE* f, void const* buf, size_t size)
838866
:fwrite(buf,1,size,f);
839867
}
840868

841-
/*
842-
* Write buffer to descriptor by calling write(),
843-
* If size of written data is less than buffer size,
844-
* then try to write what is left.
845-
* We do this to get honest errno if there are some problems
846-
* with filesystem, since writing less than buffer size
847-
* is not considered an error.
848-
*/
849-
staticssize_t
850-
durable_write(intfd,constchar*buf,size_tsize)
851-
{
852-
off_tcurrent_pos=0;
853-
size_tbytes_left=size;
854-
855-
while (bytes_left>0)
856-
{
857-
intrc=write(fd,buf+current_pos,bytes_left);
858-
859-
if (rc <=0)
860-
returnrc;
861-
862-
bytes_left-=rc;
863-
current_pos+=rc;
864-
}
865-
866-
returnsize;
867-
}
868-
869869
/* Write data to the file */
870870
/* TODO: support async report error */
871871
ssize_t
@@ -950,23 +950,22 @@ fio_fwrite_async_compressed(FILE* f, void const* buf, size_t size, int compress_
950950
}
951951
else
952952
{
953-
charuncompressed_buf[BLCKSZ];
954953
char*errormsg=NULL;
955-
int32uncompressed_size=fio_decompress(uncompressed_buf,buf,size,compress_alg,&errormsg);
954+
chardecompressed_buf[BLCKSZ];
955+
int32decompressed_size=fio_decompress(decompressed_buf,buf,size,compress_alg,&errormsg);
956956

957-
if (uncompressed_size<0)
957+
if (decompressed_size<0)
958958
elog(ERROR,"%s",errormsg);
959959

960-
returnfwrite(uncompressed_buf,1,uncompressed_size,f);
960+
returnfwrite(decompressed_buf,1,decompressed_size,f);
961961
}
962962
}
963963

964964
staticvoid
965965
fio_write_compressed_impl(intfd,voidconst*buf,size_tsize,intcompress_alg)
966966
{
967-
intrc;
968-
int32uncompressed_size;
969-
charuncompressed_buf[BLCKSZ];
967+
int32decompressed_size;
968+
chardecompressed_buf[BLCKSZ];
970969

971970
/* If the previous command already have failed,
972971
* then there is no point in bashing a head against the wall
@@ -975,14 +974,12 @@ fio_write_compressed_impl(int fd, void const* buf, size_t size, int compress_alg
975974
return;
976975

977976
/* decompress chunk */
978-
uncompressed_size=fio_decompress(uncompressed_buf,buf,size,compress_alg,&async_errormsg);
977+
decompressed_size=fio_decompress(decompressed_buf,buf,size,compress_alg,&async_errormsg);
979978

980-
if (uncompressed_size<0)
979+
if (decompressed_size<0)
981980
return;
982981

983-
rc=write(fd,uncompressed_buf,uncompressed_size);
984-
985-
if (rc <=0)
982+
if (durable_write(fd,decompressed_buf,decompressed_size) <=0)
986983
{
987984
async_errormsg=pgut_malloc(ERRMSG_MAX_LEN);
988985
snprintf(async_errormsg,ERRMSG_MAX_LEN,"%s",strerror(errno));

‎tests/helpers/ptrack_helpers.py‎

Lines changed: 3 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -2003,6 +2003,9 @@ def stopped_in_breakpoint(self):
20032003
returnTrue
20042004
returnFalse
20052005

2006+
defquit(self):
2007+
self.proc.terminate()
2008+
20062009
# use for breakpoint, run, continue
20072010
def_execute(self,cmd,running=True):
20082011
output= []

‎tests/restore.py‎

Lines changed: 65 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -9,7 +9,8 @@
99
importshutil
1010
importjson
1111
fromshutilimportcopyfile
12-
fromtestgresimportQueryException
12+
fromtestgresimportQueryException,StartNodeException
13+
fromstatimportS_ISDIR
1314

1415

1516
module_name='restore'
@@ -3856,3 +3857,66 @@ def test_concurrent_restore(self):
38563857

38573858
# Clean after yourself
38583859
self.del_test_dir(module_name,fname)
3860+
3861+
# @unittest.skip("skip")
3862+
deftest_restore_issue_313(self):
3863+
"""
3864+
Check that partially restored PostgreSQL instance cannot be started
3865+
"""
3866+
fname=self.id().split('.')[3]
3867+
backup_dir=os.path.join(self.tmp_path,module_name,fname,'backup')
3868+
node=self.make_simple_node(
3869+
base_dir=os.path.join(module_name,fname,'node'),
3870+
set_replication=True,
3871+
initdb_params=['--data-checksums'])
3872+
3873+
self.init_pb(backup_dir)
3874+
self.add_instance(backup_dir,'node',node)
3875+
self.set_archiving(backup_dir,'node',node)
3876+
node.slow_start()
3877+
3878+
# FULL backup
3879+
backup_id=self.backup_node(backup_dir,'node',node)
3880+
node.cleanup()
3881+
3882+
count=0
3883+
filelist=self.get_backup_filelist(backup_dir,'node',backup_id)
3884+
forfileinfilelist:
3885+
# count only nondata files
3886+
ifint(filelist[file]['is_datafile'])==0andint(filelist[file]['size'])>0:
3887+
count+=1
3888+
3889+
node_restored=self.make_simple_node(
3890+
base_dir=os.path.join(module_name,fname,'node_restored'))
3891+
node_restored.cleanup()
3892+
self.restore_node(backup_dir,'node',node_restored)
3893+
3894+
gdb=self.restore_node(backup_dir,'node',node,gdb=True,options=['--progress'])
3895+
gdb.verbose=False
3896+
gdb.set_breakpoint('restore_non_data_file')
3897+
gdb.run_until_break()
3898+
gdb.continue_execution_until_break(count-2)
3899+
gdb.quit()
3900+
3901+
# emulate the user or HA taking care of PG configuration
3902+
forfnameinos.listdir(node_restored.data_dir):
3903+
iffname.endswith('.conf'):
3904+
os.rename(
3905+
os.path.join(node_restored.data_dir,fname),
3906+
os.path.join(node.data_dir,fname))
3907+
3908+
try:
3909+
node.slow_start()
3910+
# we should die here because exception is what we expect to happen
3911+
self.assertEqual(
3912+
1,0,
3913+
"Expecting Error because backup is not fully restored")
3914+
exceptStartNodeExceptionase:
3915+
self.assertIn(
3916+
'Cannot start node',
3917+
e.message,
3918+
'\n Unexpected Error Message: {0}\n CMD: {1}'.format(
3919+
repr(e.message),self.cmd))
3920+
3921+
# Clean after yourself
3922+
self.del_test_dir(module_name,fname)

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