问题
I've been getting many OOM crashes in my android app (many but not all of them seem to be in Realm code:
First:
io.realm.exceptions.RealmError: Unrecoverable error. mmap() failed: Out of memory size: 872415232 offset: 0 in /Users/zaki/fromgit/realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_SharedRealm.cpp line 92
Second:
io.realm.exceptions.RealmError: Unrecoverable error. Too many open files in /Users/zaki/fromgit/realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_SharedRealm.cpp line 92
but also some even more vague memory issues:
java.lang.OutOfMemoryError: Could not allocate JNI Env
These issues seem to only happen in production and watching the memory usage in my app seems to hover pretty consistently around 10MB.
来源：https://stackoverflow.com/questions/41154207/low-level-android-out-of-memory-crashes-using-realm