I successfully compiled the oracle plugin for collectd but I can't get it to
work.
I installed oracle-instantclient12.1-devel-12.1.0.1.0-1.x86_64 and
oracle-instantclient12.1-basic-12.1.0.1.0-1.x86_64. I set $ORACLE_HOME in
/etc/profile.d and I set the LD_LIBRARY_PATH in /etc/ld.so.conf.d.
Here is my oracle config in /etc/collectd.d/
LoadPlugin oracle
<Plugin oracle>
<Query "io_per_tablespace">
Statement "SELECT sum(vf.PHYBLKRD)*8192 AS PHY_BLK_R, \
sum(vf.PHYBLKWRT)*8192 AS PHY_BLK_W, \
'tablespace' AS i_prefix, \
dt.tablespace_name \
FROM ((dba_data_files dd JOIN v$filestat vf ON dd.file_id =
vf.file# ) \
JOIN dba_tablespaces dt ON dd.tablespace_name =
dt.tablespace_name) \
GROUP BY dt.tablespace_name"
<Result>
Type "io_octets"
InstancesFrom "i_prefix" "TABLESPACE_NAME"
ValuesFrom "PHY_BLK_R" "PHY_BLK_W"
</Result>
</Query>
<Database "DB1">
ConnectID "DEV"
Username "collectd"
Password "secret"
Query "io_per_tablespace"
</Database>
</Plugin>
This is the log entry from the oracle plugin:
[2014-07-02 15:12:24] oracle plugin: o_read_database (db = DB1, query =
(none)): OCILogon("DEV") failed: ORA-12154: TNS:could not resolve the connect
identifier specified
I have a tnsnames.ora in $ORACLE_HOME/network/admin but the daemon doesn't seem
to be looking for it:
strace -e access,open /usr/sbin/collectd -C /etc/collectd.conf -f
open("/etc/collectd.d/oracle.conf", O_RDONLY) = 3
open("/usr/lib64/collectd/oracle.so", O_RDONLY) = 6
open("/usr/lib/oracle/12.1/client64/lib/libclntsh.so.12.1", O_RDONLY) = 6
open("/usr/lib/oracle/12.1/client64/lib/libnnz12.so", O_RDONLY) = 6
open("/usr/lib/oracle/12.1/client64/lib/libons.so", O_RDONLY) = 6
open("/usr/lib/oracle/12.1/client64/lib/libclntshcore.so.12.1", O_RDONLY) = 6
open("/usr/lib/oracle/12.1/client64/lib/libociei.so", O_RDONLY) = 5
open("/usr/lib/oracle/12.1/client64/network/admin/oraaccess.xml", O_RDONLY) =
-1 ENOENT (No such file or directory)
access("/usr/lib/oracle/12.1/client64/network/admin/oraaccess.xml", F_OK) = -1
ENOENT (No such file or directory)
access("/usr/lib/oracle/12.1/client64/network/admin/oraaccess.xml", F_OK) = -1
ENOENT (No such file or directory)
open("/usr/lib/oracle/12.1/client64/network/admin/oraaccess.xml", O_RDONLY) =
-1 ENOENT (No such file or directory)
access("/usr/lib/oracle/12.1/client64/network/admin/sqlnet.ora", F_OK) = 0
open("/usr/lib/oracle/12.1/client64/network/admin/sqlnet.ora", O_RDONLY) = 5
access("/root/.sqlnet.ora", F_OK) = -1 ENOENT (No such file or directory)
open("/etc/orabasetab", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/lib/oracle/12.1/client64/install/orabasetab", O_RDONLY) = -1 ENOENT
(No such file or directory)
access("/usr/lib/oracle/12.1/client64/network/admin/sqlnet.ora", F_OK) = 0
open("/usr/lib/oracle/12.1/client64/network/admin/sqlnet.ora", O_RDONLY) = 6
access("/usr/lib/oracle/12.1/client64/network/admin/intchg.ora", F_OK) = -1
ENOENT (No such file or directory)
access("/etc/intchg.ora", F_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/oracle/12.1/client64/network/admin/intchg.ora", F_OK) = -1
ENOENT (No such file or directory)
access("/usr/lib/oracle/12.1/client64/network/admin/tnsnav.ora", F_OK) = -1
ENOENT (No such file or directory)
access("/etc/tnsnav.ora", F_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/oracle/12.1/client64/network/admin/tnsnav.ora", F_OK) = -1
ENOENT (No such file or directory)
It doesn't appear to be looking for tnsnames.ora. My $ORACLE_HOME is
/usr/lib/oracle/12.1/client64. This is the same ORACLE_HOME that was used when
compiling the plugin, if that matters.
Can someone point out what I may be doing wrong or what I have missed to get
this to work?
Thanks,
Giovanni
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