Skip to content

Commit 061a4f9

Browse files
AnvarUAnvarU
committed
19843 mk_oracle: skip dba_*/cdb_* queries on MOUNTED Data Guard standbys
Standard Data Guard standbys stay in MOUNTED mode, where non-fixed data-dictionary views cannot be parsed, causing ORA-01219 parse errors to accumulate in the Oracle alert log on every agent cycle. Each affected PL/SQL block now reads v$database.open_mode first and runs the EXECUTE IMMEDIATE only when open as primary (READ WRITE) or Active Data Guard (READ ONLY WITH APPLY). Covers tablespaces, ts_quotas, jobs, resumable and legacy locks in both the Unix and Windows plugin. SUP-28247 Change-Id: Id4e1d80dd5c11ffc1c1b1efe189d64c14959f57e
1 parent b4fcc5c commit 061a4f9

3 files changed

Lines changed: 316 additions & 108 deletions

File tree

‎.werks/19843.md‎

Lines changed: 42 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,42 @@
1+
[//]: # (werk v2)
2+
# mk_oracle: avoid Oracle alert log parse errors on MOUNTED Data Guard standbys
3+
4+
key | value
5+
---------- | ---
6+
date | 2026-04-22T00:00:00+00:00
7+
version | 2.4.0p27
8+
class | fix
9+
edition | cre
10+
component | checks
11+
level | 1
12+
compatible | yes
13+
14+
On a standard Data Guard standby the database stays in `MOUNTED` mode, which
15+
means queries against non-fixed data-dictionary views (`cdb_*` / `dba_*`) cannot
16+
be parsed and Oracle raises `ORA-01219 - database not open: queries allowed on
17+
fixed tables/views only`.
18+
19+
The `mk_oracle` agent plugin issued such queries unconditionally for several
20+
sections, causing parse errors to accumulate in the Oracle alert log on every
21+
agent cycle even though the outer `EXCEPTION` handler swallowed the error for
22+
the agent output. Disabling sections via the "Sections - data to collect"
23+
ruleset was a global, all-or-nothing switch and therefore not a workable
24+
mitigation when only some monitored databases are standbys.
25+
26+
The following sections now consult `v$database.open_mode` before submitting
27+
their dynamic SQL, and run the query only when the database is open as a
28+
primary (`READ WRITE`) or as Active Data Guard (`READ ONLY WITH APPLY`):
29+
30+
* `oracle_tablespaces`
31+
* `oracle_ts_quotas`
32+
* `oracle_jobs`
33+
* `oracle_resumable`
34+
* `oracle_locks` (legacy query path)
35+
36+
Standard Data Guard standbys (`MOUNTED`) and plain read-only standbys
37+
(`READ ONLY`) no longer emit these queries and therefore no longer trigger
38+
`ORA-01219` in the alert log. Behaviour on primaries and Active Data Guard
39+
instances is unchanged.
40+
41+
This affects both `agents/plugins/mk_oracle` (Linux/Unix) and
42+
`agents/windows/plugins/mk_oracle.ps1` (Windows).

‎agents/plugins/mk_oracle‎

Lines changed: 102 additions & 20 deletions
Original file line numberDiff line numberDiff line change
@@ -945,7 +945,10 @@ sql_tablespaces() {
945945
DECLARE
946946
type x is table of varchar2(20000) index by pls_integer;
947947
xx x;
948+
l_open varchar2(32);
948949
begin
950+
select open_mode into l_open from v\$database;
951+
if l_open in ('READ WRITE', 'READ ONLY WITH APPLY') then
949952
begin
950953
execute immediate 'select upper(decode(${IGNORE_DB_NAME:-0}
951954
, 0, decode(vp.con_id, null, d.NAME
@@ -994,6 +997,7 @@ sql_tablespaces() {
994997
dbms_output.put_line(cur1.name || '| Debug (121) 1: ' ||sqlerrm);
995998
end loop;
996999
end;
1000+
end if;
9971001
END;
9981002
/
9991003
set serverout off"
@@ -1002,7 +1006,10 @@ sql_tablespaces() {
10021006
DECLARE
10031007
type x is table of varchar2(20000) index by pls_integer;
10041008
xx x;
1009+
l_open varchar2(32);
10051010
begin
1011+
select open_mode into l_open from v\$database;
1012+
if l_open in ('READ WRITE', 'READ ONLY WITH APPLY') then
10061013
begin
10071014
execute immediate 'select upper(decode(${IGNORE_DB_NAME:-0}
10081015
, 0, decode(dbf.con_id, null, d.NAME
@@ -1086,6 +1093,7 @@ sql_tablespaces() {
10861093
dbms_output.put_line(cur1.name || '| Debug (121) 2: ' ||sqlerrm);
10871094
end loop;
10881095
end;
1096+
end if;
10891097
END;
10901098
/
10911099
set serverout off"
@@ -1096,7 +1104,10 @@ sql_tablespaces() {
10961104
DECLARE
10971105
type x is table of varchar2(20000) index by pls_integer;
10981106
xx x;
1107+
l_open varchar2(32);
10991108
begin
1109+
select open_mode into l_open from v\$database;
1110+
if l_open in ('READ WRITE', 'READ ONLY WITH APPLY') then
11001111
begin
11011112
execute immediate 'select upper(decode(${IGNORE_DB_NAME:-0}, 0, d.NAME, i.instance_name))
11021113
|| ''|'' || file_name ||''|''|| tablespace_name ||''|''|| fstatus ||''|''|| AUTOEXTENSIBLE
@@ -1129,6 +1140,7 @@ sql_tablespaces() {
11291140
dbms_output.put_line(cur1.name || '| Debug (102) 1: ' ||sqlerrm);
11301141
end loop;
11311142
end;
1143+
end if;
11321144
END;
11331145
/
11341146
set serverout off"
@@ -1137,7 +1149,10 @@ sql_tablespaces() {
11371149
DECLARE
11381150
type x is table of varchar2(20000) index by pls_integer;
11391151
xx x;
1152+
l_open varchar2(32);
11401153
begin
1154+
select open_mode into l_open from v\$database;
1155+
if l_open in ('READ WRITE', 'READ ONLY WITH APPLY') then
11411156
begin
11421157
execute immediate 'select upper(decode(${IGNORE_DB_NAME:-0}
11431158
, 0, dbf.name
@@ -1207,36 +1222,62 @@ sql_tablespaces() {
12071222
dbms_output.put_line(cur1.name || '| Debug (102) 2: ' ||sqlerrm);
12081223
end loop;
12091224
end;
1225+
end if;
12101226
END;
12111227
/
12121228
set serverout off"
12131229

12141230
elif [ "$NUMERIC_ORACLE_VERSION" -ge 92 ]; then
1215-
echo "select upper(decode(${IGNORE_DB_NAME:-0}, 0, d.NAME, i.instance_name))
1216-
|| '|' || file_name ||'|'|| tablespace_name ||'|'|| fstatus ||'|'|| AUTOEXTENSIBLE
1217-
||'|'|| blocks ||'|'|| maxblocks ||'|'|| USER_BLOCKS ||'|'|| INCREMENT_BY
1218-
||'|'|| ONLINE_STATUS ||'|'|| BLOCK_SIZE
1219-
||'|'|| decode(tstatus,'READ ONLY', 'READONLY', tstatus) || '|' || free_blocks
1220-
||'|'|| contents
1231+
echo "SET SERVEROUTPUT ON feedback off
1232+
DECLARE
1233+
type x is table of varchar2(20000) index by pls_integer;
1234+
xx x;
1235+
l_open varchar2(32);
1236+
begin
1237+
select open_mode into l_open from v\$database;
1238+
if l_open in ('READ WRITE', 'READ ONLY WITH APPLY') then
1239+
begin
1240+
execute immediate 'select upper(decode(${IGNORE_DB_NAME:-0}, 0, d.NAME, i.instance_name))
1241+
|| ''|'' || file_name ||''|''|| tablespace_name ||''|''|| fstatus ||''|''|| AUTOEXTENSIBLE
1242+
||''|''|| blocks ||''|''|| maxblocks ||''|''|| USER_BLOCKS ||''|''|| INCREMENT_BY
1243+
||''|''|| ONLINE_STATUS ||''|''|| BLOCK_SIZE
1244+
||''|''|| decode(tstatus,''READ ONLY'', ''READONLY'', tstatus) || ''|'' || free_blocks
1245+
||''|''|| contents
12211246
from v\$database d , v\$instance i, (
12221247
select f.file_name, f.tablespace_name, f.status fstatus, f.AUTOEXTENSIBLE,
12231248
f.blocks, f.maxblocks, f.USER_BLOCKS, f.INCREMENT_BY,
1224-
'ONLINE' ONLINE_STATUS, t.BLOCK_SIZE, t.status tstatus, nvl(sum(fs.blocks),0) free_blocks, t.contents
1249+
''ONLINE'' ONLINE_STATUS, t.BLOCK_SIZE, t.status tstatus, nvl(sum(fs.blocks),0) free_blocks, t.contents
12251250
from dba_data_files f, dba_tablespaces t, dba_free_space fs
12261251
where f.tablespace_name = t.tablespace_name
12271252
and f.file_id = fs.file_id(+)
12281253
group by f.file_name, f.tablespace_name, f.status, f.autoextensible,
1229-
f.blocks, f.maxblocks, f.user_blocks, f.increment_by, 'ONLINE',
1254+
f.blocks, f.maxblocks, f.user_blocks, f.increment_by, ''ONLINE'',
12301255
t.block_size, t.status, t.contents
12311256
UNION
1232-
select f.file_name, f.tablespace_name, 'ONLINE' status, f.AUTOEXTENSIBLE,
1233-
f.blocks, f.maxblocks, f.USER_BLOCKS, f.INCREMENT_BY, 'TEMP',
1234-
t.BLOCK_SIZE, 'TEMP' status, sum(sh.blocks_free) free_blocks, 'TEMPORARY'
1257+
select f.file_name, f.tablespace_name, ''ONLINE'' status, f.AUTOEXTENSIBLE,
1258+
f.blocks, f.maxblocks, f.USER_BLOCKS, f.INCREMENT_BY, ''TEMP'',
1259+
t.BLOCK_SIZE, ''TEMP'' status, sum(sh.blocks_free) free_blocks, ''TEMPORARY''
12351260
from v\$thread th, dba_temp_files f, dba_tablespaces t, v\$temp_space_header sh
12361261
WHERE f.tablespace_name = t.tablespace_name and f.file_id = sh.file_id
1237-
GROUP BY th.instance, f.file_name, f.tablespace_name, 'ONLINE',
1262+
GROUP BY th.instance, f.file_name, f.tablespace_name, ''ONLINE'',
12381263
f.autoextensible, f.blocks, f.maxblocks, f.user_blocks, f.increment_by,
1239-
'TEMP', t.block_size, t.status);"
1264+
''TEMP'', t.block_size, t.status)'
1265+
bulk collect into xx;
1266+
if xx.count >= 1 then
1267+
for i in 1 .. xx.count loop
1268+
dbms_output.put_line(xx(i));
1269+
end loop;
1270+
end if;
1271+
exception
1272+
when others then
1273+
for cur1 in (select upper(name) name from v\$database) loop
1274+
dbms_output.put_line(cur1.name || '| Debug (92): ' || sqlerrm);
1275+
end loop;
1276+
end;
1277+
end if;
1278+
END;
1279+
/
1280+
set serverout off"
12401281
fi
12411282

12421283
echo 'PROMPT '
@@ -1560,7 +1601,10 @@ sql_resumable() {
15601601
DECLARE
15611602
type x is table of varchar2(20000) index by pls_integer;
15621603
xx x;
1604+
l_open varchar2(32);
15631605
begin
1606+
select open_mode into l_open from v\$database;
1607+
if l_open in ('READ WRITE', 'READ ONLY WITH APPLY') then
15641608
begin
15651609
execute immediate 'select upper(i.INSTANCE_NAME)
15661610
||''|''|| u.username
@@ -1592,6 +1636,7 @@ sql_resumable() {
15921636
dbms_output.put_line(cur1.instance_name || '| Debug: '||sqlerrm);
15931637
end loop;
15941638
end;
1639+
end if;
15951640
END;
15961641
/
15971642
set serverout off"
@@ -1607,7 +1652,10 @@ sql_jobs() {
16071652
DECLARE
16081653
type x is table of varchar2(20000) index by pls_integer;
16091654
xx x;
1655+
l_open varchar2(32);
16101656
begin
1657+
select open_mode into l_open from v\$database;
1658+
if l_open in ('READ WRITE', 'READ ONLY WITH APPLY') then
16111659
begin
16121660
execute immediate 'SELECT upper(vp.name)
16131661
||''|''|| j.OWNER
@@ -1657,6 +1705,7 @@ sql_jobs() {
16571705
dbms_output.put_line(cur1.name || '| Debug (121): ' ||sqlerrm);
16581706
end loop;
16591707
end;
1708+
end if;
16601709
END;
16611710
/
16621711
set serverout off"
@@ -1668,7 +1717,10 @@ sql_jobs() {
16681717
DECLARE
16691718
type x is table of varchar2(20000) index by pls_integer;
16701719
xx x;
1720+
l_open varchar2(32);
16711721
begin
1722+
select open_mode into l_open from v\$database;
1723+
if l_open in ('READ WRITE', 'READ ONLY WITH APPLY') then
16721724
begin
16731725
execute immediate 'SELECT upper(decode(${IGNORE_DB_NAME:-0}, 0, vd.NAME, i.instance_name))
16741726
||''|''|| j.OWNER
@@ -1707,6 +1759,7 @@ sql_jobs() {
17071759
dbms_output.put_line(cur1.name || '| Debug (102): ' ||sqlerrm);
17081760
end loop;
17091761
end;
1762+
end if;
17101763
END;
17111764
/
17121765
set serverout off"
@@ -1718,18 +1771,43 @@ sql_jobs() {
17181771
sql_ts_quotas() {
17191772
echo 'PROMPT '
17201773
echo 'PROMPT <<<oracle_ts_quotas:sep(124)>>>'
1721-
echo "select upper(decode(${IGNORE_DB_NAME:-0}, 0, d.NAME, i.instance_name))
1722-
||'|'|| Q.USERNAME
1723-
||'|'|| Q.TABLESPACE_NAME
1724-
||'|'|| Q.BYTES
1725-
||'|'|| Q.MAX_BYTES
1774+
echo "SET SERVEROUTPUT ON feedback off
1775+
DECLARE
1776+
type x is table of varchar2(20000) index by pls_integer;
1777+
xx x;
1778+
l_open varchar2(32);
1779+
begin
1780+
select open_mode into l_open from v\$database;
1781+
if l_open in ('READ WRITE', 'READ ONLY WITH APPLY') then
1782+
begin
1783+
execute immediate 'select upper(decode(${IGNORE_DB_NAME:-0}, 0, d.NAME, i.instance_name))
1784+
||''|''|| Q.USERNAME
1785+
||''|''|| Q.TABLESPACE_NAME
1786+
||''|''|| Q.BYTES
1787+
||''|''|| Q.MAX_BYTES
17261788
from dba_ts_quotas Q, v\$database d, v\$instance i
17271789
where max_bytes > 0
17281790
union all
17291791
select upper(decode(${IGNORE_DB_NAME:-0}, 0, d.NAME, i.instance_name))
1730-
||'|||'
1792+
||''|||''
17311793
from v\$database d, v\$instance i
1732-
order by 1;"
1794+
order by 1'
1795+
bulk collect into xx;
1796+
if xx.count >= 1 then
1797+
for i in 1 .. xx.count loop
1798+
dbms_output.put_line(xx(i));
1799+
end loop;
1800+
end if;
1801+
exception
1802+
when others then
1803+
for cur1 in (select upper(name) name from v\$database) loop
1804+
dbms_output.put_line(cur1.name || '| Debug ts_quotas: ' || sqlerrm);
1805+
end loop;
1806+
end;
1807+
end if;
1808+
END;
1809+
/
1810+
set serverout off"
17331811
echo 'PROMPT '
17341812
}
17351813

@@ -2010,7 +2088,10 @@ sql_locks_old() {
20102088
DECLARE
20112089
type x is table of varchar2(20000) index by pls_integer;
20122090
xx x;
2091+
l_open varchar2(32);
20132092
begin
2093+
select open_mode into l_open from v\$database;
2094+
if l_open in ('READ WRITE', 'READ ONLY WITH APPLY') then
20142095
begin
20152096
execute immediate 'select upper(i.instance_name)
20162097
|| ''|'' || a.sid
@@ -2046,6 +2127,7 @@ sql_locks_old() {
20462127
dbms_output.put_line(cur1.instance_name || '| Debug (101): '||sqlerrm);
20472128
end loop;
20482129
end;
2130+
end if;
20492131
END;
20502132
/
20512133
set serverout off"

0 commit comments

Comments
 (0)