Build: https://jenkins.thetaphi.de/job/Solr-main-Linux/500/
Java: 64bit/jdk-16 -XX:+UseCompressedOops -XX:+UseSerialGC

4 tests failed.
FAILED:  org.apache.solr.index.hdfs.CheckHdfsIndexTest.doTest

Error Message:
org.apache.solr.client.solrj.impl.BaseHttpSolrClient$RemoteSolrException: Error 
from server at http://127.0.0.1:46585//control_collection: Error opening new 
searcher

Stack Trace:
org.apache.solr.client.solrj.impl.BaseHttpSolrClient$RemoteSolrException: Error 
from server at http://127.0.0.1:46585//control_collection: Error opening new 
searcher
        at 
__randomizedtesting.SeedInfo.seed([8F7D939F4BC31BBF:28392B3B26780806]:0)
        at 
org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:698)
        at 
org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:269)
        at 
org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:251)
        at 
org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:229)
        at org.apache.solr.client.solrj.SolrClient.commit(SolrClient.java:505)
        at org.apache.solr.client.solrj.SolrClient.commit(SolrClient.java:480)
        at 
org.apache.solr.cloud.AbstractFullDistribZkTestBase.commit(AbstractFullDistribZkTestBase.java:1753)
        at 
org.apache.solr.index.hdfs.CheckHdfsIndexTest.doTest(CheckHdfsIndexTest.java:119)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
        at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:567)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1754)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:942)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:978)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:992)
        at 
org.apache.solr.BaseDistributedSearchTestCase$ShardsRepeatRule$ShardsFixedStatement.callStatement(BaseDistributedSearchTestCase.java:1087)
        at 
org.apache.solr.BaseDistributedSearchTestCase$ShardsRepeatRule$ShardsStatement.evaluate(BaseDistributedSearchTestCase.java:1058)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:44)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:45)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:819)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:470)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:951)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:836)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:887)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:898)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:38)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
        at 
org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:47)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:826)
        at java.base/java.lang.Thread.run(Thread.java:831)


FAILED:  org.apache.solr.index.hdfs.CheckHdfsIndexTest.testChecksumsOnlyVerbose

Error Message:
org.apache.solr.client.solrj.impl.BaseHttpSolrClient$RemoteSolrException: Error 
from server at http://127.0.0.1:39681: Underlying core creation failed while 
creating collection: control_collection

Stack Trace:
org.apache.solr.client.solrj.impl.BaseHttpSolrClient$RemoteSolrException: Error 
from server at http://127.0.0.1:39681: Underlying core creation failed while 
creating collection: control_collection
        at 
__randomizedtesting.SeedInfo.seed([8F7D939F4BC31BBF:4B310389E7C67C5D]:0)
        at 
org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:698)
        at 
org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:269)
        at 
org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:251)
        at 
org.apache.solr.client.solrj.impl.LBSolrClient.doRequest(LBSolrClient.java:390)
        at 
org.apache.solr.client.solrj.impl.LBSolrClient.request(LBSolrClient.java:360)
        at 
org.apache.solr.client.solrj.impl.BaseCloudSolrClient.sendRequest(BaseCloudSolrClient.java:1164)
        at 
org.apache.solr.client.solrj.impl.BaseCloudSolrClient.requestWithRetryOnStaleState(BaseCloudSolrClient.java:927)
        at 
org.apache.solr.client.solrj.impl.BaseCloudSolrClient.request(BaseCloudSolrClient.java:861)
        at 
org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:229)
        at 
org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:246)
        at 
org.apache.solr.cloud.AbstractFullDistribZkTestBase.createServers(AbstractFullDistribZkTestBase.java:340)
        at 
org.apache.solr.BaseDistributedSearchTestCase$ShardsRepeatRule$ShardsFixedStatement.callStatement(BaseDistributedSearchTestCase.java:1085)
        at 
org.apache.solr.BaseDistributedSearchTestCase$ShardsRepeatRule$ShardsStatement.evaluate(BaseDistributedSearchTestCase.java:1058)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:44)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:45)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:819)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:470)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:951)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:836)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:887)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:898)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:38)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
        at 
org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:47)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:826)
        at java.base/java.lang.Thread.run(Thread.java:831)


FAILED:  org.apache.solr.index.hdfs.CheckHdfsIndexTest.testDeletedDocs

Error Message:
java.io.IOException: background merge hit exception: 
_5(9.0.0):C2:[diagnostics={java.version=16, java.vm.version=16+36-2231, 
lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242378371}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1o _6(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242385663}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1r _7(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242392962}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1u _8(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242400239}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1x _0(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242346362}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep19 _1(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242351080}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1c _2(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242358413}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1f _3(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242365335}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1i _4(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242371082}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1l _9(9.0.0):C1:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242407531}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep20 into _a [maxNumSegments=1]

Stack Trace:
java.io.IOException: background merge hit exception: 
_5(9.0.0):C2:[diagnostics={java.version=16, java.vm.version=16+36-2231, 
lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242378371}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1o _6(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242385663}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1r _7(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242392962}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1u _8(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242400239}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1x _0(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242346362}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep19 _1(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242351080}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1c _2(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242358413}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1f _3(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242365335}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1i _4(9.0.0):C2:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242371082}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep1l _9(9.0.0):C1:[diagnostics={java.version=16, 
java.vm.version=16+36-2231, lucene.version=9.0.0, source=flush, os.arch=amd64, 
java.runtime.version=16+36-2231, os.version=5.8.0-50-generic, os=Linux, 
java.vendor=Oracle Corporation, 
timestamp=1620242407531}]:[attributes={Lucene90StoredFieldsFormat.mode=BEST_SPEED}]
 :id=dx17md08wdr1je5sp7okfep20 into _a [maxNumSegments=1]
        at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:2150)
        at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:2079)
        at 
org.apache.lucene.index.BaseTestCheckIndex.testDeletedDocs(BaseTestCheckIndex.java:51)
        at 
org.apache.solr.index.hdfs.CheckHdfsIndexTest.testDeletedDocs(CheckHdfsIndexTest.java:140)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
        at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:567)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1754)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:942)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:978)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:992)
        at 
org.apache.solr.BaseDistributedSearchTestCase$ShardsRepeatRule$ShardsFixedStatement.callStatement(BaseDistributedSearchTestCase.java:1087)
        at 
org.apache.solr.BaseDistributedSearchTestCase$ShardsRepeatRule$ShardsStatement.evaluate(BaseDistributedSearchTestCase.java:1058)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:44)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:45)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:819)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:470)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:951)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:836)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:887)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:898)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:38)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
        at 
org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:47)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:826)
        at java.base/java.lang.Thread.run(Thread.java:831)
Caused by: org.apache.lucene.index.CorruptIndexException: Problem reading index 
from HdfsDirectory@hdfs://localhost.localdomain:36699/solr 
lockFactory=org.apache.solr.store.hdfs.HdfsLockFactory@706451ca 
(resource=HdfsDirectory@hdfs://localhost.localdomain:36699/solr 
lockFactory=org.apache.solr.store.hdfs.HdfsLockFactory@706451ca)
        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:160)
        at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:89)
        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:179)
        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:786)
        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$19(IndexWriter.java:4906)
        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:418)
        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4902)
        at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4503)
        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:6255)
        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:636)
        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:697)
Caused by: java.io.EOFException: position is negative
        at 
org.apache.hadoop.fs.FSInputStream.validatePositionedReadArgs(FSInputStream.java:103)
        at org.apache.hadoop.fs.FSInputStream.readFully(FSInputStream.java:118)
        at 
org.apache.hadoop.fs.FSDataInputStream.readFully(FSDataInputStream.java:111)
        at 
org.apache.solr.store.hdfs.HdfsDirectory$HdfsIndexInput.readInternal(HdfsDirectory.java:251)
        at 
org.apache.solr.store.blockcache.CustomBufferedIndexInput.refill(CustomBufferedIndexInput.java:191)
        at 
org.apache.solr.store.blockcache.CustomBufferedIndexInput.readByte(CustomBufferedIndexInput.java:45)
        at org.apache.lucene.store.DataInput.readVInt(DataInput.java:131)
        at 
org.apache.solr.store.blockcache.CustomBufferedIndexInput.readVInt(CustomBufferedIndexInput.java:160)
        at 
org.apache.lucene.codecs.blocktreeords.OrdsBlockTreeTermsReader.<init>(OrdsBlockTreeTermsReader.java:115)
        at 
org.apache.lucene.codecs.blocktreeords.BlockTreeOrdsPostingsFormat.fieldsProducer(BlockTreeOrdsPostingsFormat.java:90)
        at 
org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:327)
        at 
org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:389)
        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:117)
        ... 10 more


FAILED:  org.apache.solr.index.hdfs.CheckHdfsIndexTest.testChecksumsOnly

Error Message:
org.apache.solr.client.solrj.impl.BaseHttpSolrClient$RemoteSolrException: Error 
from server at http://127.0.0.1:33953: Underlying core creation failed while 
creating collection: control_collection

Stack Trace:
org.apache.solr.client.solrj.impl.BaseHttpSolrClient$RemoteSolrException: Error 
from server at http://127.0.0.1:33953: Underlying core creation failed while 
creating collection: control_collection
        at 
__randomizedtesting.SeedInfo.seed([8F7D939F4BC31BBF:2D985ABCA90CE37F]:0)
        at 
org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:698)
        at 
org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:269)
        at 
org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:251)
        at 
org.apache.solr.client.solrj.impl.LBSolrClient.doRequest(LBSolrClient.java:390)
        at 
org.apache.solr.client.solrj.impl.LBSolrClient.request(LBSolrClient.java:360)
        at 
org.apache.solr.client.solrj.impl.BaseCloudSolrClient.sendRequest(BaseCloudSolrClient.java:1164)
        at 
org.apache.solr.client.solrj.impl.BaseCloudSolrClient.requestWithRetryOnStaleState(BaseCloudSolrClient.java:927)
        at 
org.apache.solr.client.solrj.impl.BaseCloudSolrClient.request(BaseCloudSolrClient.java:861)
        at 
org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:229)
        at 
org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:246)
        at 
org.apache.solr.cloud.AbstractFullDistribZkTestBase.createServers(AbstractFullDistribZkTestBase.java:340)
        at 
org.apache.solr.BaseDistributedSearchTestCase$ShardsRepeatRule$ShardsFixedStatement.callStatement(BaseDistributedSearchTestCase.java:1085)
        at 
org.apache.solr.BaseDistributedSearchTestCase$ShardsRepeatRule$ShardsStatement.evaluate(BaseDistributedSearchTestCase.java:1058)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:44)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:45)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:819)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:470)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:951)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:836)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:887)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:898)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:38)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
        at 
org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:47)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:826)
        at java.base/java.lang.Thread.run(Thread.java:831)
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