Hi guys,
I have a question regarding the searchers (PolySearcher and IndexSearcher).
I wrote an application to do searching and indexing for 2 cases: 1- unified
index(searched via IndexSearcher) 2- splitted index (there are around 12
indexes to be searched via PolySearcher). Both indexes have the same number
of documents in total.
In order to make the application simpler, for every search query I create
the related searcher, do the search, and then close it (I do closing by
DECREF). So basically a searcher is created and removed.
For the queries that do not have any results, for the IndexSearcher, I do
not see any issues. For the same query with Poly search, I receive the
following LLDB output. If I wait in the LLDB with a breakpoint before
DECREFing the PolySearcher this issue does not happen.
Process 44678 stopped
* thread #1: tid = 0x325b47, 0x0000000100004c0a
test3searchs`cfish_dec_refcount(vself=0x0000000103abe060) + 10 at
clownfish.c:100, queue = 'com.apple.main-thread', stop reason =
EXC_BAD_ACCESS (code=1, address=0x28)
frame #0: 0x0000000100004c0a
test3searchs`cfish_dec_refcount(vself=0x0000000103abe060) + 10 at
clownfish.c:100
97 cfish_dec_refcount(void *vself) {
98 cfish_Obj *self = (Obj*)vself;
99 cfish_Class *klass = self->klass;
-> 100 if (klass->flags & CFISH_fREFCOUNTSPECIAL) {
101 if (SI_immortal(klass)) {
102 return (uint32_t)self->refcount;
103 }
I believe it is not directly related to the number of results returned. But
something happens when we try to DECREF very quickly. I see that we need
pthread. This makes me think that search and DECREF does not happen in the
same thread, but I do not want to be confusing so no more comments
regarding the threads :).
Has anyone seen this issue? Do you have any suggestions? Is there a concern
in creating a new searcher and destroying it by DECREF every time (other
than a possible slowness)? Is there a better way to destroy a searcher?
Thanks,
Serkan
