Hello, first: I am pretty much a Solr newcomer, so don't necessarily assume basic solr knowledge.
My problem is that in my setup SolrCloud seems to create way too much network traffic for replication. I hope I'm just missing some proper config options. Here's the setup first: * I am running a five node SolrCloud cluster on top of an external 5 node zookeeper cluster, according to logs and clusterstate.json all nodes find each other and are happy * Solr version is now 4.3.1, but the problem also existed on 4.1.0 ( I thought upgrade might solve the issue because of https://issues.apache.org/jira/browse/SOLR-4471) * there is only one shard * solr.xml and solrconfig.xml are out of the box, except for the enabled soft commit <autoSoftCommit> <maxTime>1000</maxTime> </autoSoftCommit> * our index is minimal at the moment (dev and testing stage) 20-30Mb, about 30k small docs The issue is when I run smallish load tests against our app which posts ca 1-2 docs/sec to solr, the SolrCloud leader creates outgoing network traffic of 20-30Mbyte/sec and the non-leader receive 4-8MByte/sec each. The non-leaders logs are full of entries like INFO - 2013-06-21 01:08:58.624; org.apache.solr.handler.admin.CoreAdminHandler; It has been requested that we recover INFO - 2013-06-21 01:08:58.640; org.apache.solr.handler.admin.CoreAdminHandler; It has been requested that we recover INFO - 2013-06-21 01:08:58.643; org.apache.solr.handler.admin.CoreAdminHandler; It has been requested that we recover INFO - 2013-06-21 01:08:58.651; org.apache.solr.handler.admin.CoreAdminHandler; It has been requested that we recover INFO - 2013-06-21 01:08:58.892; org.apache.solr.handler.admin.CoreAdminHandler; It has been requested that we recover INFO - 2013-06-21 01:08:58.893; org.apache.solr.handler.admin.CoreAdminHandler; It has been requested that we recover So my assumption is I am making config errors and the cloud leader tries to push the index to all non-leaders over and over again. But I couldn't really find much doco on how to properly configure SolrCloud replication online. Any hints and help much appreciated. I can provide more info or data, just let me know what you need. Thanks in advance, Sven
