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Limit how often we ask for keys from dead servers

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This commit is contained in:
Mark Haines 2016-09-13 11:53:50 +01:00
parent 0c057736ac
commit ad816b0add
1 changed files with 30 additions and 11 deletions
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41
synapse/handlers/e2e_keys.py
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@ -22,6 +22,7 @@ from twisted.internet import defer
from synapse.api.errors import SynapseError, CodeMessageException from synapse.api.errors import SynapseError, CodeMessageException
from synapse.types import get_domain_from_id from synapse.types import get_domain_from_id
from synapse.util.logcontext import preserve_fn, preserve_context_over_deferred from synapse.util.logcontext import preserve_fn, preserve_context_over_deferred
from synapse.util.retryutils import get_retry_limiter, NotRetryingDestination
logger = logging.getLogger(__name__) logger = logging.getLogger(__name__)
@ -88,18 +89,28 @@ class E2eKeysHandler(object):
def do_remote_query(destination): def do_remote_query(destination):
destination_query = remote_queries[destination] destination_query = remote_queries[destination]
try: try:
remote_result = yield self.federation.query_client_keys( limiter = yield get_retry_limiter(
destination, destination, self.clock, self.store
{"device_keys": destination_query},
timeout=timeout
) )
with limiter:
remote_result = yield self.federation.query_client_keys(
destination,
{"device_keys": destination_query},
timeout=timeout
)
for user_id, keys in remote_result["device_keys"].items(): for user_id, keys in remote_result["device_keys"].items():
if user_id in destination_query: if user_id in destination_query:
results[user_id] = keys results[user_id] = keys
except CodeMessageException as e: except CodeMessageException as e:
failures[destination] = { failures[destination] = {
"status": e.code, "message": e.message "status": e.code, "message": e.message
} }
except NotRetryingDestination as e:
failures[destination] = {
"status": 503, "message": "Not ready for retry",
}
yield preserve_context_over_deferred(defer.gatherResults([ yield preserve_context_over_deferred(defer.gatherResults([
preserve_fn(do_remote_query)(destination) preserve_fn(do_remote_query)(destination)
@ -191,18 +202,26 @@ class E2eKeysHandler(object):
def claim_client_keys(destination): def claim_client_keys(destination):
device_keys = remote_queries[destination] device_keys = remote_queries[destination]
try: try:
remote_result = yield self.federation.claim_client_keys( limiter = yield get_retry_limiter(
destination, destination, self.clock, self.store
{"one_time_keys": device_keys},
timeout=timeout
) )
for user_id, keys in remote_result["one_time_keys"].items(): with limiter:
if user_id in device_keys: remote_result = yield self.federation.claim_client_keys(
json_result[user_id] = keys destination,
{"one_time_keys": device_keys},
timeout=timeout
)
for user_id, keys in remote_result["one_time_keys"].items():
if user_id in device_keys:
json_result[user_id] = keys
except CodeMessageException as e: except CodeMessageException as e:
failures[destination] = { failures[destination] = {
"status": e.code, "message": e.message "status": e.code, "message": e.message
} }
except NotRetryingDestination as e:
failures[destination] = {
"status": 503, "message": "Not ready for retry",
}
yield preserve_context_over_deferred(defer.gatherResults([ yield preserve_context_over_deferred(defer.gatherResults([
preserve_fn(claim_client_keys)(destination) preserve_fn(claim_client_keys)(destination)