Hello,

where having a problem ever since our upgrade to SOLR 7.5

First we have this error 
<https://lucene.472066.n3.nabble.com/file/t495502/error1.jpg> 

directly followed by 

<https://lucene.472066.n3.nabble.com/file/t495502/error2.jpg> 

the last error just keeps repeating.

Sometimes we go days without the error, sometimes it's every 2 minutes.
After restarting SOLR it works again, just untill these error's show up
again.

This is the schema of the core

<?xml version="1.0" encoding="UTF-8"?>

<schema name="belgicapress_titles_1" version="1.6">
  <uniqueKey>id</uniqueKey>
  <fieldType name="booleans" class="solr.BoolField" sortMissingLast="true"
multiValued="true"/>
  <fieldType name="int" class="solr.IntPointField"
positionIncrementGap="0"/>
  <fieldType name="long" class="solr.LongPointField"
positionIncrementGap="0"/>
  <fieldType name="longs" class="solr.LongPointField"
positionIncrementGap="0" multiValued="true"/>
  <fieldType name="string" class="solr.StrField" sortMissingLast="true"/>
  <fieldType name="tdates" class="solr.DatePointField"
positionIncrementGap="0" multiValued="true"/>
  <fieldType name="tdoubles" class="solr.DoublePointField"
positionIncrementGap="0" multiValued="true"/>
  <fieldType name="tlongs" class="solr.LongPointField"
positionIncrementGap="0" multiValued="true"/>
  <fieldType name="uuid" class="solr.UUIDField" indexed="true"/>

  <field name="_version_" type="long" indexed="true" stored="true"/>
  <field name="description" type="string" multiValued="false"
indexed="false" required="false" stored="true"/>
  <field name="from" type="int" indexed="true" required="true"
stored="true"/>
  <field name="id" type="uuid" multiValued="false" indexed="true"
required="true" stored="true"/>
  <field name="idn" type="tlongs"/>
  <field name="language" type="string" multiValued="false" indexed="true"
required="true" stored="true"/>
  <field name="link" type="string" multiValued="false" indexed="false"
required="false" stored="true"/>
  <field name="name" type="string" multiValued="false" indexed="true"
required="true" stored="true"/>
  <field name="periodical_type_id" type="uuid" multiValued="false"
indexed="true" required="true" stored="true"/>
  <field name="signature" type="string" multiValued="false" indexed="true"
required="true" stored="true"/>
  <field name="until" type="int" indexed="true" required="false"
stored="true"/>
</schema>

Below is the log
2020-03-10 08:29:13.502 INFO  (qtp1571967156-17) [   ] o.a.s.s.HttpSolrCall
[admin] webapp=null path=/admin/cores
params={indexInfo=false&wt=json&_=1583828953435} status=0 QTime=1
2020-03-10 08:29:13.507 INFO  (qtp1571967156-17) [   ] o.a.s.s.HttpSolrCall
[admin] webapp=null path=/admin/info/logging
params={wt=json&_=1583828953488&since=0} status=0 QTime=0
2020-03-10 08:29:13.604 INFO  (qtp1571967156-19) [   ] o.a.s.s.HttpSolrCall
[admin] webapp=null path=/admin/info/system params={wt=json&_=1583828953435}
status=0 QTime=100
2020-03-10 08:29:14.164 INFO  (indexFetcher-44-thread-1) [   ]
o.a.s.h.IndexFetcher Master's generation: 9
2020-03-10 08:29:14.164 INFO  (indexFetcher-44-thread-1) [   ]
o.a.s.h.IndexFetcher Master's version: 1404994976024
2020-03-10 08:29:14.164 INFO  (indexFetcher-44-thread-1) [   ]
o.a.s.h.IndexFetcher Slave's generation: 9
2020-03-10 08:29:14.164 INFO  (indexFetcher-44-thread-1) [   ]
o.a.s.h.IndexFetcher Slave's version: 1404994976024
2020-03-10 08:29:14.164 INFO  (indexFetcher-44-thread-1) [   ]
o.a.s.h.IndexFetcher Slave in sync with master.
2020-03-10 08:29:14.351 INFO  (indexFetcher-63-thread-1) [   ]
o.a.s.h.IndexFetcher Master's generation: 62163
2020-03-10 08:29:14.351 INFO  (indexFetcher-63-thread-1) [   ]
o.a.s.h.IndexFetcher Master's version: 1575628893292
2020-03-10 08:29:14.351 INFO  (indexFetcher-63-thread-1) [   ]
o.a.s.h.IndexFetcher Slave's generation: 62162
2020-03-10 08:29:14.351 INFO  (indexFetcher-63-thread-1) [   ]
o.a.s.h.IndexFetcher Slave's version: 1575628893292
2020-03-10 08:29:14.351 INFO  (indexFetcher-63-thread-1) [   ]
o.a.s.h.IndexFetcher Slave in sync with master.
2020-03-10 08:29:14.575 INFO  (qtp1571967156-17) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore [belgicapress_titles_1]  CLOSING
SolrCore org.apache.solr.core.SolrCore@73ba84ca
2020-03-10 08:29:14.575 INFO  (qtp1571967156-17) [  
x:belgicapress_titles_1] o.a.s.m.SolrMetricManager Closing metric reporters
for registry=solr.core.belgicapress_titles_1, tag=73ba84ca
2020-03-10 08:29:14.576 ERROR (qtp1571967156-17) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore
java.lang.IllegalArgumentException: Unknown directory:
NRTCachingDirectory(MMapDirectory@/solr/periodicals/belgicapress_titles_1/data/snapshot_metadata
lockFactory=org.apache.lucene.store.NativeFSLockFactory@11145a3e;
maxCacheMB=48.0 maxMergeSizeMB=4.0) {}
        at
org.apache.solr.core.CachingDirectoryFactory.release(CachingDirectoryFactory.java:427)
        at org.apache.solr.core.SolrCore.close(SolrCore.java:1632)
        at org.apache.solr.servlet.HttpSolrCall.destroy(HttpSolrCall.java:568)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:395)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:323)
        at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
        at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
        at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
        at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
        at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
        at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
        at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
        at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
        at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
        at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at org.eclipse.jetty.server.Server.handle(Server.java:531)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)
        at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
        at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
        at
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
        at java.lang.Thread.run(Thread.java:748)

2020-03-10 08:29:14.580 INFO  (qtp1571967156-21) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore [belgicapress_titles_1]  CLOSING
SolrCore org.apache.solr.core.SolrCore@73ba84ca
2020-03-10 08:29:14.580 INFO  (qtp1571967156-21) [  
x:belgicapress_titles_1] o.a.s.m.SolrMetricManager Closing metric reporters
for registry=solr.core.belgicapress_titles_1, tag=73ba84ca
2020-03-10 08:29:14.580 ERROR (qtp1571967156-21) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore
java.lang.IllegalArgumentException: Unknown directory:
NRTCachingDirectory(MMapDirectory@/solr/periodicals/belgicapress_titles_1/data/snapshot_metadata
lockFactory=org.apache.lucene.store.NativeFSLockFactory@11145a3e;
maxCacheMB=48.0 maxMergeSizeMB=4.0) {}
        at
org.apache.solr.core.CachingDirectoryFactory.release(CachingDirectoryFactory.java:427)
        at org.apache.solr.core.SolrCore.close(SolrCore.java:1632)
        at org.apache.solr.servlet.HttpSolrCall.destroy(HttpSolrCall.java:568)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:395)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:323)
        at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
        at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
        at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
        at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
        at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
        at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
        at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
        at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
        at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
        at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at org.eclipse.jetty.server.Server.handle(Server.java:531)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)
        at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
        at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
        at
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
        at java.lang.Thread.run(Thread.java:748)

2020-03-10 08:29:14.590 INFO  (qtp1571967156-19) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore [belgicapress_titles_1]  CLOSING
SolrCore org.apache.solr.core.SolrCore@73ba84ca
2020-03-10 08:29:14.590 INFO  (qtp1571967156-19) [  
x:belgicapress_titles_1] o.a.s.m.SolrMetricManager Closing metric reporters
for registry=solr.core.belgicapress_titles_1, tag=73ba84ca
2020-03-10 08:29:14.591 ERROR (qtp1571967156-19) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore
java.lang.IllegalArgumentException: Unknown directory:
NRTCachingDirectory(MMapDirectory@/solr/periodicals/belgicapress_titles_1/data/snapshot_metadata
lockFactory=org.apache.lucene.store.NativeFSLockFactory@11145a3e;
maxCacheMB=48.0 maxMergeSizeMB=4.0) {}
        at
org.apache.solr.core.CachingDirectoryFactory.release(CachingDirectoryFactory.java:427)
        at org.apache.solr.core.SolrCore.close(SolrCore.java:1632)
        at org.apache.solr.servlet.HttpSolrCall.destroy(HttpSolrCall.java:568)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:395)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:323)
        at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
        at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
        at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
        at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
        at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
        at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
        at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
        at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
        at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
        at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at org.eclipse.jetty.server.Server.handle(Server.java:531)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)
        at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
        at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
        at
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
        at java.lang.Thread.run(Thread.java:748)

2020-03-10 08:29:14.800 INFO  (qtp1571967156-19) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore [belgicapress_titles_1]  CLOSING
SolrCore org.apache.solr.core.SolrCore@73ba84ca
2020-03-10 08:29:14.800 INFO  (qtp1571967156-19) [  
x:belgicapress_titles_1] o.a.s.m.SolrMetricManager Closing metric reporters
for registry=solr.core.belgicapress_titles_1, tag=73ba84ca
2020-03-10 08:29:14.801 ERROR (qtp1571967156-19) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore
java.lang.IllegalArgumentException: Unknown directory:
NRTCachingDirectory(MMapDirectory@/solr/periodicals/belgicapress_titles_1/data/snapshot_metadata
lockFactory=org.apache.lucene.store.NativeFSLockFactory@11145a3e;
maxCacheMB=48.0 maxMergeSizeMB=4.0) {}
        at
org.apache.solr.core.CachingDirectoryFactory.release(CachingDirectoryFactory.java:427)
        at org.apache.solr.core.SolrCore.close(SolrCore.java:1632)
        at org.apache.solr.servlet.HttpSolrCall.destroy(HttpSolrCall.java:568)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:395)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:323)
        at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
        at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
        at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
        at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
        at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
        at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
        at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
        at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
        at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
        at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at org.eclipse.jetty.server.Server.handle(Server.java:531)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)
        at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
        at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
        at
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
        at java.lang.Thread.run(Thread.java:748)

2020-03-10 08:29:14.810 INFO  (qtp1571967156-19) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore [belgicapress_titles_1]  CLOSING
SolrCore org.apache.solr.core.SolrCore@73ba84ca
2020-03-10 08:29:14.810 INFO  (qtp1571967156-19) [  
x:belgicapress_titles_1] o.a.s.m.SolrMetricManager Closing metric reporters
for registry=solr.core.belgicapress_titles_1, tag=73ba84ca
2020-03-10 08:29:14.811 ERROR (qtp1571967156-19) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore
java.lang.IllegalArgumentException: Unknown directory:
NRTCachingDirectory(MMapDirectory@/solr/periodicals/belgicapress_titles_1/data/snapshot_metadata
lockFactory=org.apache.lucene.store.NativeFSLockFactory@11145a3e;
maxCacheMB=48.0 maxMergeSizeMB=4.0) {}
        at
org.apache.solr.core.CachingDirectoryFactory.release(CachingDirectoryFactory.java:427)
        at org.apache.solr.core.SolrCore.close(SolrCore.java:1632)
        at org.apache.solr.servlet.HttpSolrCall.destroy(HttpSolrCall.java:568)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:395)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:323)
        at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
        at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
        at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
        at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
        at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
        at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
        at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
        at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
        at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
        at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at org.eclipse.jetty.server.Server.handle(Server.java:531)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)
        at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
        at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
        at
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
        at java.lang.Thread.run(Thread.java:748)

2020-03-10 08:29:14.824 INFO  (qtp1571967156-21) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore [belgicapress_titles_1]  CLOSING
SolrCore org.apache.solr.core.SolrCore@73ba84ca
2020-03-10 08:29:14.824 INFO  (qtp1571967156-21) [  
x:belgicapress_titles_1] o.a.s.m.SolrMetricManager Closing metric reporters
for registry=solr.core.belgicapress_titles_1, tag=73ba84ca
2020-03-10 08:29:14.825 ERROR (qtp1571967156-21) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore
java.lang.IllegalArgumentException: Unknown directory:
NRTCachingDirectory(MMapDirectory@/solr/periodicals/belgicapress_titles_1/data/snapshot_metadata
lockFactory=org.apache.lucene.store.NativeFSLockFactory@11145a3e;
maxCacheMB=48.0 maxMergeSizeMB=4.0) {}
        at
org.apache.solr.core.CachingDirectoryFactory.release(CachingDirectoryFactory.java:427)
        at org.apache.solr.core.SolrCore.close(SolrCore.java:1632)
        at org.apache.solr.servlet.HttpSolrCall.destroy(HttpSolrCall.java:568)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:395)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:323)
        at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
        at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
        at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
        at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
        at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
        at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
        at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
        at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
        at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
        at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at org.eclipse.jetty.server.Server.handle(Server.java:531)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)
        at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
        at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
        at
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
        at java.lang.Thread.run(Thread.java:748)

2020-03-10 08:29:18.209 INFO  (qtp1571967156-19) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore [belgicapress_titles_1]  CLOSING
SolrCore org.apache.solr.core.SolrCore@73ba84ca
2020-03-10 08:29:18.209 INFO  (qtp1571967156-19) [  
x:belgicapress_titles_1] o.a.s.m.SolrMetricManager Closing metric reporters
for registry=solr.core.belgicapress_titles_1, tag=73ba84ca
2020-03-10 08:29:18.209 ERROR (qtp1571967156-19) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore
java.lang.IllegalArgumentException: Unknown directory:
NRTCachingDirectory(MMapDirectory@/solr/periodicals/belgicapress_titles_1/data/snapshot_metadata
lockFactory=org.apache.lucene.store.NativeFSLockFactory@11145a3e;
maxCacheMB=48.0 maxMergeSizeMB=4.0) {}
        at
org.apache.solr.core.CachingDirectoryFactory.release(CachingDirectoryFactory.java:427)
        at org.apache.solr.core.SolrCore.close(SolrCore.java:1632)
        at org.apache.solr.servlet.HttpSolrCall.destroy(HttpSolrCall.java:568)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:395)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:323)
        at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
        at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
        at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
        at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
        at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
        at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
        at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
        at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
        at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
        at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at org.eclipse.jetty.server.Server.handle(Server.java:531)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)
        at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
        at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
        at
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
        at java.lang.Thread.run(Thread.java:748)

2020-03-10 08:29:18.214 INFO  (qtp1571967156-19) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore [belgicapress_titles_1]  CLOSING
SolrCore org.apache.solr.core.SolrCore@73ba84ca
2020-03-10 08:29:18.214 INFO  (qtp1571967156-19) [  
x:belgicapress_titles_1] o.a.s.m.SolrMetricManager Closing metric reporters
for registry=solr.core.belgicapress_titles_1, tag=73ba84ca
2020-03-10 08:29:18.215 ERROR (qtp1571967156-19) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore
java.lang.IllegalArgumentException: Unknown directory:
NRTCachingDirectory(MMapDirectory@/solr/periodicals/belgicapress_titles_1/data/snapshot_metadata
lockFactory=org.apache.lucene.store.NativeFSLockFactory@11145a3e;
maxCacheMB=48.0 maxMergeSizeMB=4.0) {}
        at
org.apache.solr.core.CachingDirectoryFactory.release(CachingDirectoryFactory.java:427)
        at org.apache.solr.core.SolrCore.close(SolrCore.java:1632)
        at org.apache.solr.servlet.HttpSolrCall.destroy(HttpSolrCall.java:568)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:395)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:323)
        at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
        at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
        at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
        at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
        at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
        at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
        at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
        at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
        at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
        at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at org.eclipse.jetty.server.Server.handle(Server.java:531)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)
        at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
        at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
        at
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
        at java.lang.Thread.run(Thread.java:748)

2020-03-10 08:29:18.217 INFO  (qtp1571967156-21) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore [belgicapress_titles_1]  CLOSING
SolrCore org.apache.solr.core.SolrCore@73ba84ca
2020-03-10 08:29:18.217 INFO  (qtp1571967156-21) [  
x:belgicapress_titles_1] o.a.s.m.SolrMetricManager Closing metric reporters
for registry=solr.core.belgicapress_titles_1, tag=73ba84ca
2020-03-10 08:29:18.218 ERROR (qtp1571967156-21) [  
x:belgicapress_titles_1] o.a.s.c.SolrCore
java.lang.IllegalArgumentException: Unknown directory:
NRTCachingDirectory(MMapDirectory@/solr/periodicals/belgicapress_titles_1/data/snapshot_metadata
lockFactory=org.apache.lucene.store.NativeFSLockFactory@11145a3e;
maxCacheMB=48.0 maxMergeSizeMB=4.0) {}
        at
org.apache.solr.core.CachingDirectoryFactory.release(CachingDirectoryFactory.java:427)
        at org.apache.solr.core.SolrCore.close(SolrCore.java:1632)
        at org.apache.solr.servlet.HttpSolrCall.destroy(HttpSolrCall.java:568)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:395)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:323)
        at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
        at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
        at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
        at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
        at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
        at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
        at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
        at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
        at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
        at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
        at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at org.eclipse.jetty.server.Server.handle(Server.java:531)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)
        at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
        at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
        at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
        at
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
        at java.lang.Thread.run(Thread.java:748)


Anybody any ideas what could be causing these errors and how to resolve
them?
Thanks in advance,
Wezy





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