replication error solr 7.7 simple master/slave no cloud

[Jeff Courtade <co...@gmail.com>]

Hi we have a new setup of solr 7.7 without cloud in a master/slave setup

Periodically our core stops responding to queries and must be
restarted on the slave.

Two hosts

is06 solr 7.7 master
ss06 solr 7.7 slave

simple replication is setup no solr cloud


so on the primary is06 we see this error
The file really is not there on the primary it also in not on the slave

/u01/app/solr/var/logs/solr/solr.log.2019-07-03-13-2019-07-03
13:03:24.348 WARN  (qtp1422222071-2980) [   x:fdsys-core]
o.a.s.h.ReplicationHandler Exception while writing response for
params: generation=118615&checksum=true&qt=/replication&file=_320g_Lucene42_0.dvd&wt=filestream&command=filecontent
/u01/app/solr/var/logs/solr/solr.log.2019-07-03-13:java.nio.file.NoSuchFileException:
/u01/app/solr/indexes/data/index/_320g_Lucene42_0.dvd

we also see these on the slave ss06

/u01/app/solr/var/logs/solr/solr.log.2019-07-03-15-2019-07-03
15:16:30.931 INFO  (qtp1422222071-2078) [   x:fdsys-core]
o.a.s.c.S.Request [fdsys-core]  webapp=/solr path=/admin/ping
params={wt=javabin&version=2} status=0 QTime=0
/u01/app/solr/var/logs/solr/solr.log.2019-07-03-15-2019-07-03
15:16:30.931 WARN  (qtp1422222071-1692) [   x:fdsys-core]
o.a.s.h.ReplicationHandler Exception while writing response for
params: generation=118615&checksum=true&qt=/replication&file=_320g_Lucene42_0.dvd&wt=filestream&command=filecontent
/u01/app/solr/var/logs/solr/solr.log.2019-07-03-15:java.nio.file.NoSuchFileException:
/u01/app/solr/indexes/data/index/_320g_Lucene42_0.dvd

shortly after these occur the fdys core will stop restopnding to queries on ss06

any idea what these messages are about?