New graph: Key buffer used/unflushed/total

Author: Brice Figureau

MYSQL-SERVER-MIB.txt

@@ -1236,5 +1236,29 @@ myInooDBSemWaitTime OBJECT-TYPE
     "Total time innodb waited for semaphores"
     ::= { myStatus 145 }
 
+myKeyBufBytesUnflushed OBJECT-TYPE
+    SYNTAX	mySQLUnsigned64
+    MAX-ACCESS	read-only
+    STATUS	current
+    DESCRIPTION
+    "Key Buffer bytes still unflushed"
+    ::= { myStatus 146 }
+
+myKeyBufBytesUsed OBJECT-TYPE
+    SYNTAX	mySQLUnsigned64
+    MAX-ACCESS	read-only
+    STATUS	current
+    DESCRIPTION
+    "Key Buffer used in bytes"
+    ::= { myStatus 147 }
+
+myKeyBufferSize OBJECT-TYPE
+    SYNTAX	mySQLUnsigned64
+    MAX-ACCESS	read-only
+    STATUS	current
+    DESCRIPTION
+    "Size of the Key Buffer"
+    ::= { myStatus 148 }
+
 
 END

mysql-snmp

@@ -474,7 +474,7 @@ my @types = (
     'Gauge32',   'Gauge32',   'Gauge32',   'Gauge32',      # 133 - 136
     'Counter64', 'Counter64', 'Counter64', 'Counter64',    # 137 - 140
     'Counter64', 'Counter64', 'Counter64', 'Counter64',    # 141 - 144
-    'Counter64',                                           # 145 - 145
+    'Counter64', 'Counter64', 'Counter64', 'Counter64',    # 145 - 148
 );
 
 my @newkeys = (
@@ -550,7 +550,8 @@ my @newkeys = (
     'myDictionaryCacheMemory',    'myFileSystemMemory',          # 139 - 140
     'myLockSystemMemory',         'myRecoverySystemMemory',      # 141 - 142
     'myThreadHashMemory',         'myInnoDBSemWaits',            # 143 - 144
-    'myInnoDBSemWaitTime',                                       # 145 - 145
+    'myInnoDBSemWaitTime',        'myKeyBufBytesUnflushed',      # 145 - 146
+    'myKeyBufBytesUsed',          'myKeyBufferSize',             # 147 - 148
 );
 
 my @oldkeys = (
@@ -626,7 +627,8 @@ my @oldkeys = (
     'dictionary_cache_memory',    'file_system_memory',            # 139 - 140
     'lock_system_memory',         'recovery_system_memory',        # 141 - 142
     'thread_hash_memory',         'innodb_sem_waits',              # 143 - 144
-    'innodb_sem_wait_time_ms',                                     # 145 - 145
+    'innodb_sem_wait_time_ms',    'key_buf_bytes_unflushed',       # 145 - 146
+    'key_buf_bytes_used',         'key_buffer_size',               # 147 - 148
 );
 
 run() unless caller();
@@ -656,6 +658,13 @@ sub max {
     return $b;
 }
 
+sub bigint($) {
+    my $str = shift;
+    return Math::BigInt->bzero() if !$str;
+    return new Math::BigInt $1 if $str =~ m/(\d+)/;
+    return Math::BigInt->bzero();
+}
+
 # This function has been translated from PHP to Perl from the
 # excellent Baron Schwartz's MySQL Cacti Templates
 sub fetch_mysql_data {
@@ -807,6 +816,8 @@ sub fetch_mysql_data {
             }
         }
 
+        $status{'key_buf_bytes_used'} = bigint($status{'key_buffer_size'})->bsub(bigint($status{'Key_blocks_unused'})->bmul($status{'key_cache_block_size'}));
+        $status{'key_buf_bytes_unflushed'} = bigint($status{'Key_blocks_not_flushed'})->bmul(bigint($status{'key_cache_block_size'}));
 
         # Get SHOW PROCESSLIST and aggregate it by state, then add it to the array
         # too.

opennms/mysql.datacollection-config.xml

@@ -150,6 +150,9 @@
   <mibObj oid=".1.3.6.1.4.1.20267.200.1.143" instance="0" alias="myThreadHashMemory" type="Gauge64" />
   <mibObj oid=".1.3.6.1.4.1.20267.200.1.144" instance="0" alias="myInnoDBSemWaits" type="Counter64" />
   <mibObj oid=".1.3.6.1.4.1.20267.200.1.145" instance="0" alias="myInnoDBSemWaitTime" type="Counter64" />
+  <mibObj oid=".1.3.6.1.4.1.20267.200.1.146" instance="0" alias="myKeyBufBytsUnflshd" type="Gauge64" />
+  <mibObj oid=".1.3.6.1.4.1.20267.200.1.147" instance="0" alias="myKeyBufBytesUsed" type="Gauge64" />
+  <mibObj oid=".1.3.6.1.4.1.20267.200.1.148" instance="0" alias="myKeyBufferSize" type="Gauge64" />
 </group>
 
 <systemDef name="Net-Snmp">

opennms/mysql.snmp-graph.properties

@@ -1,5 +1,5 @@
 # Add this to the reports list
-# reports=mysql.mysqlfilesandtables, mysql.myisamindexes, mysql.mysqlnetworktraffic, mysql.mysqlquerycachememory, mysql.innodbiopending, mysql.innodbinternalhashmemoryusage, mysql.innodbactivelockedtransactions, mysql.innodblog, mysql.mysqlsorts, mysql.mysqltemporaryobjects, mysql.innodbcheckpointage, mysql.innodbtablesinuse, mysql.innodbrowoperations, mysql.innodbtransactions, mysql.innodbsemaphores, mysql.mysqlprocesslist, mysql.innodbadaptivehashindex, mysql.mysqlselecttypes, mysql.mysqlthreads, mysql.innodbinsertbufferusage, mysql.mysqlcommandcounters, mysql.innodbinsertbuffer, mysql.innodbmemoryallocation, mysql.mysqlconnections, mysql.innodblockstructures, mysql.innodbsemaphorewaittime, mysql.innodbbufferpool, mysql.mysqltablelocks, mysql.innodbsemaphorewaits, mysql.mysqlreplication, mysql.innodbio, mysql.mysqlquerycache, mysql.innodbbufferpoolactivity, mysql.mysqlbinaryrelaylogs, mysql.innodbcurrentlockwaits
+# reports=mysql.mysqlfilesandtables, mysql.myisamindexes, mysql.mysqlnetworktraffic, mysql.mysqlquerycachememory, mysql.innodbiopending, mysql.innodbinternalhashmemoryusage, mysql.innodbactivelockedtransactions, mysql.innodblog, mysql.mysqlsorts, mysql.mysqltemporaryobjects, mysql.innodbcheckpointage, mysql.innodbtablesinuse, mysql.innodbrowoperations, mysql.innodbtransactions, mysql.innodbsemaphores, mysql.mysqlprocesslist, mysql.innodbadaptivehashindex, mysql.mysqlselecttypes, mysql.mysqlthreads, mysql.innodbinsertbufferusage, mysql.mysqlcommandcounters, mysql.innodbinsertbuffer, mysql.innodbmemoryallocation, mysql.mysqlconnections, mysql.innodblockstructures, mysql.innodbsemaphorewaittime, mysql.innodbbufferpool, mysql.mysqltablelocks, mysql.myisamkeycache, mysql.innodbsemaphorewaits, mysql.mysqlreplication, mysql.innodbio, mysql.mysqlquerycache, mysql.innodbbufferpoolactivity, mysql.mysqlbinaryrelaylogs, mysql.innodbcurrentlockwaits
 
 # paste this at the end of snmp-graph.properties file
 report.mysql.myisamindexes.name=MyISAM Indexes
@@ -1057,3 +1057,27 @@ report.mysql.innodbsemaphorewaittime.command=--title "InnoDB Semaphore Wait Time
   GPRINT:myInnoDBSemWaitTime:AVERAGE:"Avg \\: %8.2lf %s" \
   GPRINT:myInnoDBSemWaitTime:MIN:"Min \\: %8.2lf %s" \
   GPRINT:myInnoDBSemWaitTime:MAX:"Max \\: %8.2lf %s\\n"
+
+report.mysql.myisamkeycache.columns=myKeyBufferSize,myKeyBufBytesUsed,myKeyBufBytsUnflshd
+report.mysql.myisamkeycache.type=nodeSnmp
+report.mysql.myisamkeycache.width=565
+report.mysql.myisamkeycache.height=200
+report.mysql.myisamkeycache.command=--title "MyISAM Key Cache" \
+ --width 565 \
+ --height 200 \
+ DEF:myKeyBufferSize={rrd1}:myKeyBufferSize:AVERAGE \
+ DEF:myKeyBufBytesUsed={rrd2}:myKeyBufBytesUsed:AVERAGE \
+ DEF:myKeyBufBytsUnflshd={rrd3}:myKeyBufBytsUnflshd:AVERAGE \
+ AREA:myKeyBufferSize#99B898:"Key Buffer Size        " \
+ GPRINT:myKeyBufferSize:AVERAGE:"Avg \\: %8.2lf %s" \
+ GPRINT:myKeyBufferSize:MIN:"Min \\: %8.2lf %s" \
+ GPRINT:myKeyBufferSize:MAX:"Max \\: %8.2lf %s\\n" \
+ AREA:myKeyBufBytesUsed#2A363B:"Key Buf Bytes Used     " \
+ GPRINT:myKeyBufBytesUsed:AVERAGE:"Avg \\: %8.2lf %s" \
+ GPRINT:myKeyBufBytesUsed:MIN:"Min \\: %8.2lf %s" \
+ GPRINT:myKeyBufBytesUsed:MAX:"Max \\: %8.2lf %s\\n" \
+ AREA:myKeyBufBytsUnflshd#FECEA8:"Key Buf Bytes Unflushed" \
+ GPRINT:myKeyBufBytsUnflshd:AVERAGE:"Avg \\: %8.2lf %s" \
+ GPRINT:myKeyBufBytsUnflshd:MIN:"Min \\: %8.2lf %s" \
+ GPRINT:myKeyBufBytsUnflshd:MAX:"Max \\: %8.2lf %s\\n"
+

opennms/tools/cacti2MIB.pl

@@ -165,6 +165,9 @@
         'thread_hash_memory'        => {mib => 'myThreadHashMemory',            order => 143, type => 'Gauge64'},
         'innodb_sem_waits'          => {mib => 'myInnoDBSemWaits',              order => 144, type => 'Counter64'},
         'innodb_sem_wait_time_ms'   => {mib => 'myInnoDBSemWaitTime',           order => 145, type => 'Counter64'},
+        'key_buf_bytes_unflushed'   => {mib => 'myKeyBufBytesUnflushed',        order => 146, type => 'Gauge64'},
+        'key_buf_bytes_used'        => {mib => 'myKeyBufBytesUsed',             order => 147, type => 'Gauge64'},
+        'key_buffer_size'           => {mib => 'myKeyBufferSize',               order => 148, type => 'Gauge64'},
     },
     startoid => '.1.3.6.1.4.1.20267.200.1',
 }