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Target v5 upgrade
| Name: | v5 upgrade target |
|---|---|
| Type: | target |
| Status: | supported |
| FirstVersion: | 5.0 |
| Copyright: | 2008–2010 Florian octo Forster |
| License: | LGPLv2.1 |
| Manpage: | collectd.conf(5) |
| See also: | List of Targets |
The v5 upgrade target can be used to upgrade version 4 data to a changed version 5 layout. For example, it ensures that the interface name is assigned to the plugin instance rather than the type instance and converts the df type to the df_complex type.
LoadPlugin target_v5upgrade
<Chain "PreCache">
Target "v5upgrade"
</Chain>
Convert the df type to the df_complex type:
- {|
| rowspan="2" | df | rowspan="2" | → | df_complex-used |- | df_complex-free |}
!!! ATTENTION !!!
Please note, what df type is used not only by df plugin, but in other plugins too.
Memcached plugin still uses df type in new versions, not df_complex,
but v5upgrade converts types without checking plugin.
So, while using v5upgrade target you will get memcached data stored
into df_complex type RRDs, and after finishing migration and disabling
v5upgrade target you will get this data stored as df type again.
Please note this, and check for this at other plugins too.
Ensure the interface name is assigned to the plugin instance, not the type instance.
Convert the mysql_qcache type to the cache_result and cache_size types:
- {|
| rowspan="5" | mysql_qcache | rowspan="5" | → | cache_result-qcache-hits |- | cache_result-qcache-inserts |- | cache_result-qcache-not_cached |- | cache_result-qcache-prunes |- | cache_size-qcache |}
Convert the mysql_threads type to the threads and total_threads types:
- {|
| rowspan="4" | mysql_threads | rowspan="4" | → | threads-running |- | threads-connected |- | threads-cached |- | total_threads-created |}
Convert the arc_counts type to the cache_result type:
- {|
| rowspan="4" | arc_counts-(hits/misses) | rowspan="4" | → | cache_result-demand_data-(hit/miss) |- | cache_result-demand_metadata-(hit/miss) |- | cache_result-prefetch_data-(hit/miss) |- | cache_result-prefetch_metadata-(hit/miss) |}
Convert the arc_l2_bytes type to the io_octets type:
- arc_l2_bytes → io_octets-L2
Convert the arc_l2_size type to the cache_size type:
- arc_l2_size → cache_size-L2
Convert the arc_ratio type to the cache_ratio type. Adapt the type instance “L1” to “arc”.
- arc_ratio-L1 → cache_ratio-arc arc_ratio-L2 → cache_ratio-L2
Convert the arc_size type to the cache_size type. Only the data-source “current” is converted, the other three data sources represent static configuration settings and will be omitted.
- arc_size (current) → cache_size-arc
- none