[SOLR-12706] CloudSolrClient NPE exception when NOT directUpdatesToLeadersOnly

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Cannot Reproduce
• Assignee: Unassigned
• Reporter: David Smiley
• Created: 28/Aug/18 13:40
• Updated: 27/Apr/20 04:27
• Resolved: 27/Apr/20 04:26

Description

I've seen multiple various tests fail with a NPE with this stack trace:

Caused by: java.lang.NullPointerException
        at org.apache.solr.client.solrj.impl.CloudSolrClient.buildUrlMap(CloudSolrClient.java:641)
        at org.apache.solr.client.solrj.impl.CloudSolrClient.directUpdate(CloudSolrClient.java:502)
        at org.apache.solr.client.solrj.impl.CloudSolrClient.sendRequest(CloudSolrClient.java:1018)
        at org.apache.solr.client.solrj.impl.CloudSolrClient.requestWithRetryOnStaleState(CloudSolrClient.java:886)

Line 641 is: if (!replica.getNodeName().equals(leader.getNodeName()) && in a loop that is under a condition if (!directUpdatesToLeadersOnly) {

Searching emails of failed reports for "CloudSolrClient.buildUrlMap" will turn up various failure reports. The first such email in recent times occurred August 3rd and since then, multiple times.

Issue Links

• relates to: SOLR-11801 support customisation of the "highlighting" query response element