(DuckDBConnection) DriverManager.getConnection stuck #277
Description
the first time to execute following code,then is ok
"""
conn = (DuckDBConnection) DriverManager.getConnection("jdbc:duckdb:")
// execute query
conn.close
"""
but when get connection again, processs will hang
java stack
"http-nio-5201-exec-13" #127 daemon prio=5 os_prio=0 tid=0x00007fe13c008000 nid=0x9516 runnable [0x00007fe0711d3000]
java.lang.Thread.State: RUNNABLE
at org.duckdb.DuckDBNative.duckdb_jdbc_startup(Native Method)
at org.duckdb.DuckDBConnection.newConnection(DuckDBConnection.java:52)
at org.duckdb.DuckDBDriver.connect(DuckDBDriver.java:48)
at java.sql.DriverManager.getConnection(DriverManager.java:664)
at java.sql.DriverManager.getConnection(DriverManager.java:270)
at cn.huolala.diagnose.duckdb.DuckDBUtil.getConnection(DuckDBUtil.java:45)
i make sure it hang with following native so, the code is
db_instance_cache.cpp:58
// if the database does not exist, but the cache entry still exists, the database is being shut down
// we need to wait until the database is fully shut down to safely proceed
// we do this here using a busy spin
while (cache_entry) {
// clear our cache entry
cache_entry.reset();
// try to lock it again
cache_entry = entry->second.lock(); // here
}
is there some advice, I need help