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elasticsearch_backfill_app.py
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elasticsearch_backfill_app.py
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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
"""This app tests that inserting a crash report into elasticsearch works.
It simply uses socorro.external.elasticsearch.crashstorage to send a report
and verifies that it was correctly inserted.
This app can be invoked like this:
.../scripts/elasticsearch_backfill_app.py --help
set your path to make that simpler
set both socorro and configman in your PYTHONPATH
"""
import datetime
import pyelasticsearch
from configman import Namespace, converters
from socorro.app import generic_app
from socorro.lib import datetimeutil
class ElasticsearchBackfillApp(generic_app.App):
app_name = 'elasticsearch_backfill'
app_version = '0.1'
app_description = __doc__
required_config = Namespace()
required_config.namespace('elasticsearch')
required_config.elasticsearch.add_option(
'storage_class',
default='socorro.external.elasticsearch.crashstorage.'
'ElasticSearchCrashStorage',
from_string_converter=converters.class_converter,
doc='The class to use to store crash reports in elasticsearch.'
)
required_config.elasticsearch.add_option(
'elasticsearch_index_alias',
default='%%s_%Y%m%d',
doc='Index to use when reindex data. Will be aliased to the regular '
'index. '
)
required_config.namespace('secondary_storage')
required_config.secondary_storage.add_option(
'storage_class',
default='socorro.external.hb.crashstorage.HBaseCrashStorage',
from_string_converter=converters.class_converter,
doc='The class to use to pull raw crash reports.'
)
required_config.add_option(
'end_date',
default=datetimeutil.utc_now().date(),
doc='Backfill until this date.',
from_string_converter=converters.date_converter
)
required_config.add_option(
'duration',
default=1,
doc='Number of weeks to backfill. '
)
required_config.add_option(
'index_doc_number',
default=100,
doc='Number of crashes to index at a time. '
)
required_config.add_option(
'fetch_only',
default=0,
doc='For testing purpose only, stop indexing after this number of '
'documents. Leave 0 to disable. '
)
def main(self):
self.es_storage = self.config.elasticsearch.storage_class(
self.config.elasticsearch
)
self.secondary_storage = self.config.secondary_storage.storage_class(
self.config.secondary_storage
)
now = datetimeutil.utc_now()
current_date = self.config.end_date
one_week = datetime.timedelta(weeks=1)
# Iterate over our indices.
for i in range(self.config.duration):
es_current_index = self.get_index_for_date(
current_date,
self.config.elasticsearch.elasticsearch_index
)
es_new_index = self.get_index_for_date(
now,
self.config.elasticsearch.elasticsearch_index_alias
) % es_current_index
self.config.logger.info(
'backfilling crashes for %s',
es_current_index
)
try:
reports = self.get_reports(es_current_index, es_fields=[])
total_num_of_crashes_in_index = reports['total']
except pyelasticsearch.exceptions.ElasticHttpNotFoundError:
# This index does not exist, we don't want to reindex it.
self.config.logger.info(
'index %s does not exist, moving on',
es_current_index
)
continue
# First create the new index.
self.es_storage.create_index(es_new_index)
# Get all the reports in elasticsearch, but only a few at a time.
for es_from in range(
0,
total_num_of_crashes_in_index,
self.config.index_doc_number
):
if (
self.config.fetch_only and
es_from >= self.config.fetch_only
):
# For performance testing only!
# If fetch_only is set, stop right after we
# reach that number of documents, without destroying the
# original index.
return 0
crashes_to_index = []
reports = self.get_reports(
es_current_index,
es_from=es_from,
es_size=self.config.index_doc_number,
)
for report in reports['hits']:
crash_report = report['_source']
if 'uuid' in crash_report:
# This is a legacy crash report, containing only the
# processed crash at the root level.
crash_id = crash_report['uuid']
processed_crash = crash_report
raw_crash = self.secondary_storage.get_raw_crash(
crash_id
)
crash_document = {
'crash_id': crash_id,
'processed_crash': processed_crash,
'raw_crash': raw_crash,
}
elif 'processed_crash' in crash_report:
# This is a new style crash report, with branches for
# the processed crash and the raw crash.
crash_document = crash_report
else:
raise KeyError('''Unable to understand what type of
document was retrieved from elasticsearch''')
crashes_to_index.append(crash_document)
self.index_crashes(es_new_index, crashes_to_index)
# Now that reindexing is done, delete the old index and
# create an alias to the new one.
self.es_storage.es.delete_index(es_current_index)
self.es_storage.es.update_aliases({
'actions': [
{
'add': {
'index': es_new_index,
'alias': es_current_index,
}
}
]
})
current_date -= one_week
return 0
def get_reports(self, index, es_fields=None, es_size=0, es_from=0):
"""Return some reports from an elasticsearch index. """
es_query = {
'query': {
'match_all': {}
},
'fields': es_fields,
'size': es_size,
'from': es_from
}
return self.es_storage.es.search(
es_query,
index=index,
)['hits']
def get_index_for_date(self, date, index_format):
"""return the elasticsearch index for a date"""
if not index_format:
return None
if '%' in index_format:
return date.strftime(index_format)
return index_format
def index_crashes(self, es_index, crashes_to_index):
self.es_storage.es.bulk_index(
es_index,
self.config.elasticsearch.elasticsearch_doctype,
crashes_to_index,
id_field='crash_id'
)
if __name__ == '__main__':
generic_app.main(ElasticsearchBackfillApp)