Solr slave replication is not well after replication

I set to the Master/Slave configuration in Solr and try to replication on slave sever "Solr Management screen" by pushing "Replication Now" button.

But I push "Replication Now" button again to again , Replication is not well.

After I push "Replication Now" button, Index folder (index.XXXXXX) is created and Replication.propeties file is updated. but Slave index remain to only 100 b. (Master index is 2.3 GB)

Why replicaiton is not well.

I set solrconfig.xml to the below. (I think replication is timeouted) but replication is not well.So maybe timeout isn't related.

<str name=”httpConnTimeout”>50000</str>
<str name=”httpReadTimeout”>100000</str>

[Version (Master and Slave Server)]

　windows server 2008 R2 (64bit)
　apache solr：4.3.1
　jdk：1.7.0_55

[solrconfig.xml (Master and Slave Server)]

 <requestHandler name="/replication" class="solr.ReplicationHandler" >
<lst name="master">
  <str name="enable">${enable.master:false}</str>
  <str name="replicateAfter">commit</str>
  <str name="replicateAfter">startup</str>
  <str name="confFiles">schema.xml,stopwords.txt</str>
</lst>
<lst name="slave">
  <str name="enable">${enable.slave:false}</str>
  <str name="masterUrl">http://${master.url:}/tridion/replication</str>
  <str name="pollInterval">00:00:60</str>
  <str name="httpBasicAuthUser">${master.authUser:}</str>
  <str name="httpBasicAuthPassword">${master.authPassword:}</str>
</lst>

[Master Server]

• Solr Management screen(Overview)

  　

-　Solr Management screen(Replication)

[Slave Server]

• Solr Management screen(Overview)

• Solr Management screen(Replication)

[repliction.properties]

[index folder]