From: Roman Klesel Date: Fri, 31 Oct 2008 10:09:50 +0000 (+0100) Subject: contrib/oracle: Add an example schema and SQL statements for the oracle plugin. X-Git-Tag: collectd-4.6.0~171^2 X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=a3b477b60e7215ae813d665e22325b4b318646ef;p=collectd.git contrib/oracle: Add an example schema and SQL statements for the oracle plugin. create_schema.ddl: Script to create a schema that can be queried by collectd. db_systat.sql: Sample SQL statements to be used in the collectd configuration. --- diff --git a/contrib/oracle/create_schema.ddl b/contrib/oracle/create_schema.ddl new file mode 100644 index 00000000..c54c76ca --- /dev/null +++ b/contrib/oracle/create_schema.ddl @@ -0,0 +1,243 @@ +-- Description +-------------- +-- This will create a schema to provide collectd with the required permissions +-- and space for statistic data. +-- The idea is to store the output of some expensive queries in static tables +-- and fill these tables with dbms_scheduler jobs as often as necessary. +-- collectd will then just read from the static tables. This will reduces the +-- chance that your system will be killed by excessive monitoring queries and +-- gives the dba control on the interval the information provided to collectd +-- will be refreshed. You have to create a dbms_scheduler job for each of the +-- schemas you what to monitor for object-space-usage. See the example below. +-- +-- Requirements +--------------- +-- make shure you have: +-- write permission in $PWD +-- you have GID of oracle software owner +-- set $ORACLE_HOME +-- set $ORACLE_SID +-- DB is up an running in RW mode +-- execute like this: +-- sqlplus /nolog @ create_collectd-schema.dll + +spool create_collectd-schema.log +connect / as sysdba + +-- Create user, tablespace and permissions + +CREATE TABLESPACE "COLLECTD-TBS" + DATAFILE SIZE 30M + AUTOEXTEND ON + NEXT 10M + MAXSIZE 300M + LOGGING + EXTENT MANAGEMENT LOCAL + SEGMENT SPACE MANAGEMENT AUTO + DEFAULT NOCOMPRESS; + +CREATE ROLE "CREATE_COLLECTD_SCHEMA" NOT IDENTIFIED; +GRANT CREATE JOB TO "CREATE_COLLECTD_SCHEMA"; +GRANT CREATE SEQUENCE TO "CREATE_COLLECTD_SCHEMA"; +GRANT CREATE SYNONYM TO "CREATE_COLLECTD_SCHEMA"; +GRANT CREATE TABLE TO "CREATE_COLLECTD_SCHEMA"; +GRANT CREATE VIEW TO "CREATE_COLLECTD_SCHEMA"; +GRANT CREATE PROCEDURE TO "CREATE_COLLECTD_SCHEMA"; + +CREATE USER "COLLECTDU" + PROFILE "DEFAULT" + IDENTIFIED BY "Change_me-1st" + PASSWORD EXPIRE + DEFAULT TABLESPACE "COLLECTD-TBS" + TEMPORARY TABLESPACE "TEMP" + QUOTA UNLIMITED ON "COLLECTD-TBS" + ACCOUNT UNLOCK; + +GRANT "CONNECT" TO "COLLECTDU"; +GRANT "SELECT_CATALOG_ROLE" TO "COLLECTDU"; +GRANT "CREATE_COLLECTD_SCHEMA" TO "COLLECTDU"; +GRANT analyze any TO "COLLECTDU"; +GRANT select on dba_tables TO "COLLECTDU"; +GRANT select on dba_lobs TO "COLLECTDU"; +GRANT select on dba_indexes TO "COLLECTDU"; +GRANT select on dba_segments TO "COLLECTDU"; +GRANT select on dba_tab_columns TO "COLLECTDU"; +GRANT select on dba_free_space TO "COLLECTDU"; +GRANT select on dba_data_files TO "COLLECTDU"; +-- Create tables and indexes + +alter session set current_schema=collectdu; + +create table c_tbs_usage ( + tablespace_name varchar2(30), + bytes_free number, + bytes_used number, + CONSTRAINT "C_TBS_USAGE_UK1" UNIQUE ("TABLESPACE_NAME") USING INDEX + TABLESPACE "COLLECTD-TBS" ENABLE) + TABLESPACE "COLLECTD-TBS"; + +CREATE TABLE "COLLECTDU"."C_TBL_SIZE" ( + "OWNER" VARCHAR2(30 BYTE), + "TABLE_NAME" VARCHAR2(30 BYTE), + "BYTES" NUMBER, + CONSTRAINT "C_TBL_SIZE_UK1" UNIQUE ("OWNER", "TABLE_NAME") + USING INDEX TABLESPACE "COLLECTD-TBS" ENABLE) + TABLESPACE "COLLECTD-TBS" ; + + +create or replace PROCEDURE get_object_size(owner IN VARCHAR2) AS + +v_owner VARCHAR2(30) := owner; + +l_free_blks NUMBER; +l_total_blocks NUMBER; +l_total_bytes NUMBER; +l_unused_blocks NUMBER; +l_unused_bytes NUMBER; +l_lastusedextfileid NUMBER; +l_lastusedextblockid NUMBER; +l_last_used_block NUMBER; + +CURSOR cur_tbl IS +SELECT owner, + TABLE_NAME +FROM dba_tables +WHERE owner = v_owner; + +CURSOR cur_idx IS +SELECT owner, + index_name, + TABLE_NAME +FROM dba_indexes +WHERE owner = v_owner; + +CURSOR cur_lob IS +SELECT owner, + segment_name, + TABLE_NAME +FROM dba_lobs +WHERE owner = v_owner; + +BEGIN + + DELETE FROM c_tbl_size + WHERE owner = v_owner; + COMMIT; + + FOR r_tbl IN cur_tbl + LOOP + BEGIN + dbms_space.unused_space(segment_owner => r_tbl.owner, segment_name => r_tbl.TABLE_NAME, segment_type => 'TABLE', total_blocks => l_total_blocks, total_bytes => l_total_bytes, unused_blocks => l_unused_blocks, unused_bytes => l_unused_bytes, last_used_extent_file_id => l_lastusedextfileid, last_used_extent_block_id => l_lastusedextblockid, last_used_block => l_last_used_block); + + EXCEPTION + WHEN others THEN + DBMS_OUTPUT.PUT_LINE('tbl_name: ' || r_tbl.TABLE_NAME); + END; + INSERT + INTO c_tbl_size + VALUES(r_tbl.owner, r_tbl.TABLE_NAME, l_total_bytes -l_unused_bytes); + END LOOP; + + COMMIT; + + FOR r_idx IN cur_idx + LOOP + BEGIN + dbms_space.unused_space(segment_owner => r_idx.owner, segment_name => r_idx.index_name, segment_type => 'INDEX', total_blocks => l_total_blocks, total_bytes => l_total_bytes, unused_blocks => l_unused_blocks, unused_bytes => l_unused_bytes, last_used_extent_file_id => l_lastusedextfileid, last_used_extent_block_id => l_lastusedextblockid, last_used_block => l_last_used_block); + + EXCEPTION + WHEN others THEN + DBMS_OUTPUT.PUT_LINE('idx_name: ' || r_idx.index_name); + END; + + UPDATE c_tbl_size + SET bytes = bytes + l_total_bytes -l_unused_bytes + WHERE owner = r_idx.owner + AND TABLE_NAME = r_idx.TABLE_NAME; + END LOOP; + + COMMIT; + + FOR r_lob IN cur_lob + LOOP + BEGIN + dbms_space.unused_space(segment_owner => r_lob.owner, segment_name => r_lob.segment_name, segment_type => 'LOB', total_blocks => l_total_blocks, total_bytes => l_total_bytes, unused_blocks => l_unused_blocks, unused_bytes => l_unused_bytes, last_used_extent_file_id => l_lastusedextfileid, last_used_extent_block_id => l_lastusedextblockid, last_used_block => l_last_used_block); + + EXCEPTION + WHEN others THEN + DBMS_OUTPUT.PUT_LINE('lob_name: ' || r_lob.segment_name); + END; + + UPDATE c_tbl_size + SET bytes = bytes + l_total_bytes -l_unused_bytes + WHERE owner = r_lob.owner + AND TABLE_NAME = r_lob.TABLE_NAME; + END LOOP; + + COMMIT; + +END get_object_size; +/ + +create or replace PROCEDURE get_tbs_size AS +BEGIN + +execute immediate 'truncate table c_tbs_usage'; + +insert into c_tbs_usage ( +select df.tablespace_name as tablespace_name, + decode(df.maxbytes, + 0, + sum(fs.bytes), + (df.maxbytes-(df.bytes-sum(fs.bytes)))) as bytes_free, + decode(df.maxbytes, + 0, + round((df.bytes-sum(fs.bytes))), + round(df.maxbytes-(df.maxbytes-(df.bytes-sum(fs.bytes))))) as bytes_used +from dba_free_space fs inner join + (select + tablespace_name, + sum(bytes) bytes, + sum(decode(maxbytes,0,bytes,maxbytes)) maxbytes + from dba_data_files + group by tablespace_name ) df +on fs.tablespace_name = df.tablespace_name +group by df.tablespace_name,df.maxbytes,df.bytes); + +COMMIT; + +END get_tbs_size; +/ + +BEGIN +sys.dbms_scheduler.create_job( +job_name => '"COLLECTDU"."C_TBSSIZE_JOB"', +job_type => 'PLSQL_BLOCK', +job_action => 'begin + get_tbs_size(); +end;', +repeat_interval => 'FREQ=MINUTELY;INTERVAL=5', +start_date => systimestamp at time zone 'Europe/Berlin', +job_class => '"DEFAULT_JOB_CLASS"', +auto_drop => FALSE, +enabled => TRUE); +END; +/ + +BEGIN +sys.dbms_scheduler.create_job( +job_name => '"COLLECTDU"."C_TBLSIZE_COLLECTDU_JOB"', +job_type => 'PLSQL_BLOCK', +job_action => 'begin + get_object_size( owner => ''COLLECTDU'' ); +end;', +repeat_interval => 'FREQ=HOURLY;INTERVAL=12', +start_date => systimestamp at time zone 'Europe/Berlin', +job_class => '"DEFAULT_JOB_CLASS"', +auto_drop => FALSE, +enabled => TRUE); +END; +/ + +spool off +quit diff --git a/contrib/oracle/db_systat.sql b/contrib/oracle/db_systat.sql new file mode 100644 index 00000000..073c7696 --- /dev/null +++ b/contrib/oracle/db_systat.sql @@ -0,0 +1,55 @@ +-- Table sizes +SELECT owner, + TABLE_NAME, + bytes +FROM collectdu.c_tbl_size; + +-- Tablespace sizes +SELECT tablespace_name, + bytes_free, + bytes_used +FROM collectdu.c_tbs_usage; + +-- IO per Tablespace +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; + +-- Buffer Pool Hit Ratio: +SELECT DISTINCT 100 *ROUND(1 -((MAX(decode(name, 'physical reads cache', VALUE))) /(MAX(decode(name, 'db block gets from cache', VALUE)) + MAX(decode(name, 'consistent gets from cache', VALUE)))), 4) AS +VALUE, + 'BUFFER_CACHE_HIT_RATIO' AS +buffer_cache_hit_ratio +FROM v$sysstat; + +-- Shared Pool Hit Ratio: +SELECT + 100.0 * sum(PINHITS) / sum(pins) as VALUE, + 'SHAREDPOOL_HIT_RATIO' AS SHAREDPOOL_HIT_RATIO +FROM V$LIBRARYCACHE; + +-- PGA Hit Ratio: +SELECT VALUE, + 'PGA_HIT_RATIO' AS +pga_hit_ratio +FROM v$pgastat +WHERE name = 'cache hit percentage'; + +-- DB Efficientcy +SELECT ROUND(SUM(decode(metric_name, 'Database Wait Time Ratio', VALUE)), 2) AS +database_wait_time_ratio, + ROUND(SUM(decode(metric_name, 'Database CPU Time Ratio', VALUE)), 2) AS +database_cpu_time_ratio, + 'DB_EFFICIENCY' AS +db_efficiency +FROM sys.v_$sysmetric +WHERE metric_name IN('Database CPU Time Ratio', 'Database Wait Time Ratio') + AND intsize_csec = + (SELECT MAX(intsize_csec) + FROM sys.v_$sysmetric);