e95d2187b6
Change the driver to maintain a count of in-progress operations to each server (per client). When selecting a mongos server, the driver now picks 2 suitable servers at random and selects the server with fewer in-progress operations. Previously, the driver selected a mongos server at random. The new behavior is intended to route operations away from unhealthy or slow servers in highly concurrent single client workloads. PYTHON-2460 Only reset Pool.active_sockets to 0 after a fork()
37 lines
640 B
JSON
37 lines
640 B
JSON
{
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"description": "Better of two choices always selected",
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"topology_description": {
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"type": "Sharded",
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"servers": [
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{
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"address": "a:27017",
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"avg_rtt_ms": 35,
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"type": "Mongos"
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},
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{
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"address": "b:27017",
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"avg_rtt_ms": 35,
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"type": "Mongos"
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}
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]
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},
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"mocked_topology_state": [
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{
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"address": "a:27017",
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"operation_count": 0
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},
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{
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"address": "b:27017",
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"operation_count": 5
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}
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],
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"iterations": 100,
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"outcome": {
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"tolerance": 0,
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"expected_frequencies": {
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"a:27017": 1,
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"b:27017": 0
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}
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}
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}
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