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This commit is based on exploratory work by Sohaib Mohamed. The end goal is two-fold - to support addition of Meters we build via configuration files for both the PCP platform and for scripts ( https://github.com/htop-dev/htop/issues/526 ) Here, we focus on generic code and the PCP support. A new class DynamicMeter is introduced - it uses the special case 'param' field handling that previously was used only by the CPUMeter, such that every runtime-configured Meter is given a unique identifier. Unlike with the CPUMeter this is used internally only. When reading/writing to htoprc instead of CPU(N) - where N is an integer param (CPU number) - we use the string name for each meter. For example, if we have a configuration for a DynamicMeter for some Redis metrics, we might read and write "Dynamic(redis)". This identifier is subsequently matched (back) up to the configuration file so we're able to re-create arbitrary user configurations. The PCP platform configuration file format is fairly simple. We expand configs from several directories, including the users homedir alongside htoprc (below htop/meters/) and also /etc/pcp/htop/meters. The format will be described via a new pcp-htop(5) man page, but its basically ini-style and each Meter has one or more metric expressions associated, as well as specifications for labels, color and so on via a dot separated notation for individual metrics within the Meter. A few initial sample configuration files are provided below ./pcp/meters that give the general idea. The PCP "derived" metric specification - see pmRegisterDerived(3) - is used as the syntax for specifying metrics in PCP DynamicMeters.
74 lines
1.9 KiB
Plaintext
74 lines
1.9 KiB
Plaintext
#
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# pcp-htop(1) configuration file - see pcp-htop(5)
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#
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[mysql_io]
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caption = MySQL I/O
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recv.metric = mysql.status.bytes_received
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recv.color = green
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recv.label = recv
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sent.metric = mysql.status.bytes_sent
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sent.color = blue
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sent.label = sent
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[mysql_keys]
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caption = MySQL keys
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description = MySQL key status
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key_blocks_used.metric = mysql.status.key_blocks_used
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key_blocks_used.label = color
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key_blocks_used.label = used
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key_reads.metric = mysql.status.key_reads
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key_reads.label = read
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key_reads.color = green
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key_writes.metric = mysql.status.key_writes
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key_writes.label = writ
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key_writes.color = blue
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key_read_requests.metric = mysql.status.key_read_requests
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key_read_requests.label = rreq
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key_read_requests.color = green
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key_write_requests.metric = mysql.status.key_write_requests
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key_write_requests.label = wreq
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key_write_requests.color = blue
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[innodb_buffer]
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caption = InnoDB pool
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description = InnoDB buffer pool
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created.metric = mysql.status.innodb_pages_created
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created.label = cr
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created.color = yellow
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read.metric = mysql.status.innodb_pages_read
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read.label = rd
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read.color = greed
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written.metric = mysql.status.innodb_pages_written
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written.label = wr
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written.color = red
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[innodb_io]
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caption = InnoDB I/O
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description = InnoDB I/O operations
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read.metric = mysql.status.innodb_data_read
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read.label = rd
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read.color = green
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written.metric = mysql.status.innodb_data.writes
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written.label = wr
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written.color = blue
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sync.metric = mysql.status.innodb_data_fsyncs
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sync.label = sync
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sync.color = cyan
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[innodb_ops]
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caption = InnoDB ops
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description = InnoDB operations
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inserted.metric = mysql.status.innodb_rows_inserted
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inserted.label = ins
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inserted.color = blue
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updated.metric = mysql.status.innodb_rows_updated
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updated.label = upd
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updated.color = cyan
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deleted.metric = mysql.status.innodb_rows_deleted
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deleted.label = del
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deleted.color = red
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read.metric = mysql.status.innodb_rows_read
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read.label = rd
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read.color = green
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