m30999| Fri May 10 08:21:29.465 [conn100] warning: exception when receiving data from test-rs0:test-rs0/ip-0A420969:31100,ip-0A420969:31101, current connection state is { state: { conn: "test-rs0/ip-0A420969:31100,ip-0A420969:31101", vinfo: "test-rs0:test-rs0/ip-0A420969:31100,ip-0A420969:31101", cursor: "(empty)", count: 0, done: false }, retryNext: false, init: true, finish: true, errored: false } :: caused by :: 15988 error querying server
"error: { \"$err\" : \"error querying server\", \"code\" : 15988 }"
 m30999| Fri May 10 08:21:29.466 [mongosMain] connection accepted from 10.66.9.105:53612 #101 (51 connections now open)
 m30999| Fri May 10 08:21:29.467 [conn101] Primary for replica set test-rs0 changed to ip-0A420969:31100
 m30999| Fri May 10 08:21:29.467 [conn101] Socket recv() errno:10053 An established connection was aborted by the software in your host machine. 10.66.9.105:31100
 m30999| Fri May 10 08:21:29.467 [conn101] SocketException: remote: 10.66.9.105:31100 error: 9001 socket exception [RECV_ERROR] server [10.66.9.105:31100] 
 m30999| Fri May 10 08:21:29.467 [conn101] DBClientCursor::init lazy say() failed
 m30999| Fri May 10 08:21:29.467 [conn101] DBClientCursor::init message from say() was empty
 m30999| Fri May 10 08:21:29.467 [conn101] got not master for: ip-0A420969:31100
 m30999| Fri May 10 08:21:29.468 [conn101] warning: exception when receiving data from test-rs0:test-rs0/ip-0A420969:31100,ip-0A420969:31101, current connection state is { state: { conn: "test-rs0/ip-0A420969:31100,ip-0A420969:31101", vinfo: "test-rs0:test-rs0/ip-0A420969:31100,ip-0A420969:31101", cursor: "(empty)", count: 0, done: false }, retryNext: false, init: true, finish: true, errored: false } :: caused by :: 15988 error querying server
"error: { \"$err\" : \"error querying server\", \"code\" : 15988 }"
assert: [0] != [50] are not equal : undefined
Error: Printing Stack Trace
    at printStackTrace (src/mongo/shell/utils.js:37:15)
    at doassert (src/mongo/shell/assert.js:6:5)
    at Function.assert.eq (src/mongo/shell/assert.js:32:5)
    at C:\10gen\buildslaves\mongo\Windows_32bit\mongo\jstests\sharding\rs_stepdown_and_pooling.js:99:8
Fri May 10 08:21:29.473 JavaScript execution failed: [0] != [50] are not equal : undefined at src/mongo/shell/assert.js:L7
failed to load: C:\10gen\buildslaves\mongo\Windows_32bit\mongo\jstests\sharding\rs_stepdown_and_pooling.js