Description of problem:

Stop migrate does not stop migration immediately. This is a problem when the client is trying to perform operations on volume after stopMigrate is called.


Version-Release number of selected component (if applicable):
rhsc-cb14

How reproducible:
90% of the time


Steps to Reproduce:
1.create a volume and start the volume
2.create some data on volume so that each brick has data
3.migrate a few bricks
4.via api, call stop migrate on the volume
5.immediately after, call stop volume

Actual results:
400 response
2014-01-10 17:10:41,038 [main] DEBUG org.apache.http.wire - << "<?xml version="1.0" encoding="UTF-8" standalone="yes"?>[\n]"¬
2014-01-10 17:10:41,038 [main] DEBUG org.apache.http.wire - << "<action>[\n]"¬
2014-01-10 17:10:41,038 [main] DEBUG org.apache.http.wire - << "    <status>[\n]"¬
2014-01-10 17:10:41,038 [main] DEBUG org.apache.http.wire - << "        <state>failed</state>[\n]"¬
2014-01-10 17:10:41,038 [main] DEBUG org.apache.http.wire - << "    </status>[\n]"¬
2014-01-10 17:10:41,038 [main] DEBUG org.apache.http.wire - << "    <fault>[\n]"¬
2014-01-10 17:10:41,038 [main] DEBUG org.apache.http.wire - << "        <reason>Operation Failed</reason>[\n]"¬
2014-01-10 17:10:41,038 [main] DEBUG org.apache.http.wire - << "        <detail>[volume stop failed[\n]"¬
2014-01-10 17:10:41,039 [main] DEBUG org.apache.http.wire - << "error: rebalance session is in progress for the volume 'startnegativerepcount'[\n]"¬
2014-01-10 17:10:41,039 [main] DEBUG org.apache.http.wire - << "return code: -1]</detail>[\n]"¬
2014-01-10 17:10:41,039 [main] DEBUG org.apache.http.wire - << "    </fault>[\n]"¬
2014-01-10 17:10:41,039 [main] DEBUG org.apache.http.wire - << "</action>[\n]"¬

Expected results:

stop volume succeeds every time.


Additional info: