I finally have an explanation, I post it here for future reference :
The cause was a combination of :
1) /select request handler has default with the spellcheck ON and few
spellcheck options ( such as collationQuery ON and max collation tries set
to 5)
2) the firstSearcher has a warm-up query wi
1) nope, no big tlog or replaying problem
2) Solr just seem freezed. Not responsive and nothing in the log.
Now I just tried just to restart after the Zookeeper config deploy and on
restart the log complety freezes and the instances don't come up...
If I clean the indexes and then start, this work
1> are you replaying the tlog? If you have a large tlog for some
reason you may be replaying it. Although a reload should do a commit
first.
2> What do the Solr logs show the node in question to be doing?
3> Sorry to mislead you, async is not a 4.10 option for the RELOAD
command so that was bogus
Additional information :
Try single core reload I identified that an entire shard is not reloading (
while the other shard is ).
Taking a look to the "not reloading" shard ( 2 replicas) , it seems that the
core reload stucks here :
org.apache.solr.core.SolrCores#waitAddPendingCoreOps
The problem
Taking a look to 4.10.2 source I may see why the async call does not work :
/log.info("Reloading Collection : " + req.getParamString());
String name = req.getParams().required().get("name");
*ZkNodeProps m = new ZkNodeProps(Overseer.QUEUE_OPERATION,
OverseerCollectionProce
Thanks for the prompt response Erick,
the reason that I am issuing a Collection reload is because I modify from
time to the time the Solrconfig for example, with different spellcheck and
request parameter default params.
So after the upload to Zookeeper I reload the collection to reflect the
modifi
I doubt SOLR-6246 is related, DirectSolrSpellChecker just looks in the
index using (on a quick scan) IndexReader which doesn't hold a lock
IIUC so it shouldn't leave anything around. Additionally, there is no
real "build" step since it's looking at the index rather than creating
a new one as Analyz
I have been recently facing an issue with the Collection Reload in a couple
of Solr Cloud clusters :
1) re-index a collection
2) collection happily working
3) trigger collection reload
4) reload times out ( silently, no message in any of the Solr node logs)
5) no effect on the collection ( it sti
