Target: v5upgrade¶

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.

Synopsis¶

 LoadPlugin target_v5upgrade
 <Chain "PreCache">
    Target "v5upgrade"
 </Chain>

Implemented upgrades¶

Df type¶

Convert the df type to the df_complex type:

- {|

| rowspan="2" | df | rowspan="2" | → | df_complex-used |- | df_complex-free |}

!!! ATTENTION !!! Please note, whatdftype is used not only bydfplugin, but in other plugins too. Memcachedplugin still usesdftype in new versions, notdf_complex, butv5upgradeconverts types without checking plugin. So, while usingv5upgradetarget you will get memcached data stored intodf_complextype RRDs, and after finishing migration and disabling v5upgradetarget you will get this data stored asdftype again. Please note this, and check for this at other plugins too.

Interface plugin¶

Ensure the interface name is assigned to the plugin instance, not the type instance.

Mysql_qcache type¶

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 |}

Mysql_threads type¶

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 |}

Arc_counts type¶

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) |}

Arc_l2_bytes type¶

Convert the arc_l2_bytes type to the io_octets type:

- arc_l2_bytes → io_octets-L2

Arc_l2_size type¶

Convert the arc_l2_size type to the cache_size type:

- arc_l2_size → cache_size-L2

Arc_ratio type¶

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

Arc_size type¶

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

Dependencies¶

• none

Configuration¶

This is a built-in target and takes no configuration of its own. See filter chains.