Object Classes

IndexList

class curator.indexlist.IndexList(client)
all_indices = None

Instance variable. All indices in the cluster at instance creation time. Type: list()

client = None

An Elasticsearch Client object Also accessible as an instance variable.

empty_list_check()

Raise exception if indices is empty

filter_allocated(key=None, value=None, allocation_type='require', exclude=True)

Match indices that have the routing allocation rule of key=value from indices

Parameters:
  • key – The allocation attribute to check for
  • value – The value to check for
  • allocation_type – Type of allocation to apply
  • exclude – If exclude is True, this filter will remove matching indices from indices. If exclude is False, then only matching indices will be kept in indices. Default is True
filter_by_age(source='name', direction=None, timestring=None, unit=None, unit_count=None, field=None, stats_result='min_value', epoch=None, exclude=False)

Match indices by relative age calculations.

Parameters:
  • source – Source of index age. Can be one of ‘name’, ‘creation_date’, or ‘field_stats’
  • direction – Time to filter, either older or younger
  • timestring – An strftime string to match the datestamp in an index name. Only used for index filtering by name.
  • unit – One of seconds, minutes, hours, days, weeks, months, or years.
  • unit_count – The number of unit``s. ``unit_count * unit will be calculated out to the relative number of seconds.
  • field – A timestamp field name. Only used for field_stats based calculations.
  • stats_result – Either min_value or max_value. Only used in conjunction with source`=``field_stats` to choose whether to reference the minimum or maximum result value.
  • epoch – An epoch timestamp used in conjunction with unit and unit_count to establish a point of reference for calculations. If not provided, the current time will be used.
  • exclude – If exclude is True, this filter will remove matching indices from indices. If exclude is False, then only matching indices will be kept in indices. Default is False
filter_by_regex(kind=None, value=None, exclude=False)

Match indices by regular expression (pattern).

Parameters:
  • kind – Can be one of: suffix, prefix, regex, or timestring. This option defines what kind of filter you will be building.
  • value – Depends on kind. It is the strftime string if kind is timestring. It’s used to build the regular expression for other kinds.
  • exclude – If exclude is True, this filter will remove matching indices from indices. If exclude is False, then only matching indices will be kept in indices. Default is False
filter_by_space(disk_space=None, reverse=True, use_age=False, source='creation_date', timestring=None, field=None, stats_result='min_value', exclude=False)

Remove indices from the actionable list based on space consumed, sorted reverse-alphabetically by default. If you set reverse to False, it will be sorted alphabetically.

The default is usually what you will want. If only one kind of index is provided–for example, indices matching logstash-%Y.%m.%d–then reverse alphabetical sorting will mean the oldest will remain in the list, because lower numbers in the dates mean older indices.

By setting reverse to False, then index3 will be deleted before index2, which will be deleted before index1

use_age allows ordering indices by age. Age is determined by the index creation date by default, but you can specify an source of name, max_value, or min_value. The name source requires the timestring argument.

Parameters:
  • disk_space – Filter indices over n gigabytes
  • reverse – The filtering direction. (default: True). Ignored if use_age is True
  • use_age – Sort indices by age. source is required in this case.
  • source – Source of index age. Can be one of name, creation_date, or field_stats. Default: creation_date
  • timestring – An strftime string to match the datestamp in an index name. Only used if source name is selected.
  • field – A timestamp field name. Only used if source field_stats is selected.
  • stats_result – Either min_value or max_value. Only used if source field_stats is selected. It determines whether to reference the minimum or maximum value of field in each index.
  • exclude – If exclude is True, this filter will remove matching indices from indices. If exclude is False, then only matching indices will be kept in indices. Default is False
filter_closed(exclude=True)

Filter out closed indices from indices

Parameters:exclude – If exclude is True, this filter will remove matching indices from indices. If exclude is False, then only matching indices will be kept in indices. Default is True
filter_forceMerged(max_num_segments=None, exclude=True)

Match any index which has max_num_segments per shard or fewer in the actionable list.

Parameters:
  • max_num_segments – Cutoff number of segments per shard.
  • exclude – If exclude is True, this filter will remove matching indices from indices. If exclude is False, then only matching indices will be kept in indices. Default is True
filter_kibana(exclude=True)

Match any index named .kibana, kibana-int, .marvel-kibana, or .marvel-es-data in indices.

Parameters:exclude – If exclude is True, this filter will remove matching indices from indices. If exclude is False, then only matching indices will be kept in indices. Default is True
filter_opened(exclude=True)

Filter out opened indices from indices

Parameters:exclude – If exclude is True, this filter will remove matching indices from indices. If exclude is False, then only matching indices will be kept in indices. Default is True
index_info = None

Instance variable. Information extracted from indices, such as segment count, age, etc. Populated at instance creation time, and by other private helper methods, as needed. Type: dict()

indices = None

Instance variable. The running list of indices which will be used by an Action class. Populated at instance creation time. Type: list()

iterate_filters(filter_dict)

Iterate over the filters defined in config and execute them.

Parameters:filter_dict – The configuration dictionary

Note

filter_dict should be a dictionary with the following form:

{ 'filters' : [
        {
            'filtertype': 'the_filter_type',
            'key1' : 'value1',
            ...
            'keyN' : 'valueN'
        }
    ]
}
working_list()

Return the current value of indices as copy-by-value to prevent list stomping during iterations

SnapshotList

class curator.snapshotlist.SnapshotList(client, repository=None)
client = None

An Elasticsearch Client object. Also accessible as an instance variable.

empty_list_check()

Raise exception if snapshots is empty

filter_by_age(source='creation_date', direction=None, timestring=None, unit=None, unit_count=None, epoch=None, exclude=False)

Remove snapshots from snapshots by relative age calculations.

Parameters:
  • source – Source of snapshot age. Can be ‘name’, or ‘creation_date’.
  • direction – Time to filter, either older or younger
  • timestring – An strftime string to match the datestamp in an snapshot name. Only used for snapshot filtering by name.
  • unit – One of seconds, minutes, hours, days, weeks, months, or years.
  • unit_count – The number of unit``s. ``unit_count * unit will be calculated out to the relative number of seconds.
  • epoch – An epoch timestamp used in conjunction with unit and unit_count to establish a point of reference for calculations. If not provided, the current time will be used.
  • exclude – If exclude is True, this filter will remove matching snapshots from snapshots. If exclude is False, then only matching snapshots will be kept in snapshots. Default is False
filter_by_regex(kind=None, value=None, exclude=False)

Filter out indices not matching the pattern, or in the case of exclude, filter those matching the pattern.

Parameters:
  • kind – Can be one of: suffix, prefix, regex, or timestring. This option defines what kind of filter you will be building.
  • value – Depends on kind. It is the strftime string if kind is timestring. It’s used to build the regular expression for other kinds.
  • exclude – If exclude is True, this filter will remove matching snapshots from snapshots. If exclude is False, then only matching snapshots will be kept in snapshots. Default is False
filter_by_state(state=None, exclude=False)

Filter out indices not matching state, or in the case of exclude, filter those matching state.

Parameters:
  • state – The snapshot state to filter for. Must be one of SUCCESS, PARTIAL, FAILED, or IN_PROGRESS.
  • exclude – If exclude is True, this filter will remove matching snapshots from snapshots. If exclude is False, then only matching snapshots will be kept in snapshots. Default is False
iterate_filters(config)

Iterate over the filters defined in config and execute them.

Parameters:config – A dictionary of filters, as extracted from the YAML configuration file.

Note

config should be a dictionary with the following form:

{ 'filters' : [
        {
            'filtertype': 'the_filter_type',
            'key1' : 'value1',
            ...
            'keyN' : 'valueN'
        }
    ]
}
most_recent()

Return the most recent snapshot based on start_time_in_millis.

repository = None

An Elasticsearch repository. Also accessible as an instance variable.

snapshot_info = None

Instance variable. Information extracted from snapshots, such as age, etc. Populated by internal method __get_snapshots at instance creation time. Type: dict()

snapshots = None

Instance variable. The running list of snapshots which will be used by an Action class. Populated by internal methods __get_snapshots at instance creation time. Type: list()

working_list()

Return the current value of snapshots as copy-by-value to prevent list stomping during iterations