[SOLR-11280] Long cannot be cast to String in UpdateLog$LogReplayer

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Information Provided
• Affects Version/s: 6.6
• Component/s: replication (java)
• Assignee: Unassigned
• Reporter: Markus Jelsma
• Created: 23/Aug/17 08:33
• Updated: 10/Feb/22 10:35
• Resolved: 10/Feb/22 10:35

Description

A node could not recover last night due to it running out of diskspace. The node tried to pull the entire index over the wire but that failed. Just now i simply removed all index.YYYYMMDD... directories and restarted, this is what i got:

java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.String
	at org.apache.solr.common.util.JavaBinCodec.readSolrInputDocument(JavaBinCodec.java:571)
	at org.apache.solr.common.util.JavaBinCodec.readObject(JavaBinCodec.java:310)
	at org.apache.solr.common.util.JavaBinCodec.readVal(JavaBinCodec.java:251)
	at org.apache.solr.common.util.JavaBinCodec.readArray(JavaBinCodec.java:712)
	at org.apache.solr.common.util.JavaBinCodec.readObject(JavaBinCodec.java:267)
	at org.apache.solr.common.util.JavaBinCodec.readVal(JavaBinCodec.java:251)
	at org.apache.solr.update.TransactionLog$LogReader.next(TransactionLog.java:684)
	at org.apache.solr.update.UpdateLog$LogReplayer.doReplay(UpdateLog.java:1591)
	at org.apache.solr.update.UpdateLog$LogReplayer.run(UpdateLog.java:1513)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:229)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

Recovery was not a problem, it is running again.