FPClip_Open deadlock

Hi,

We are experiencing some issues using the SDK via the Java FPLibary. After around 100,000 documents read from the CAS, all threads become blocked waiting on FPClip_Open requiring us to restart the JVM.

public byte[] readFile(CasConfig.POOL pool, String casId) {         FPPool connection = null;         FPClip clip = null;         FPTag tag = null;         ByteArrayOutputStream outputStream = null;         try {             connection = getConnect(pool);             outputStream = new ByteArrayOutputStream();             clip = openFpClip(connection, casId);             tag = clip.getTopTag();             tag.BlobRead(outputStream);             return outputStream.toByteArray();         } catch (Exception e) {             log.error("Error from CAS. Reading CAS ID {}", casId, e);             try {                 connection.Close();             } catch (FPLibraryException e1) {             }             connectionPool.remove(pool);             throw new RuntimeException("Could not read from CAS: " + e.getMessage(), e);         } finally {             try {                 if (outputStream != null) {                     outputStream.close();                 }                 if (tag != null) {                     tag.Close();                 }                 if (clip != null) {                     clip.Close();                 }             } catch (FPLibraryException | IOException e) {                 log.error("Failed to close CAS connection", e);             }         }     }       protected FPPool getConnect(CasConfig.POOL pool) throws FPLibraryException {         if (!connectionPool.containsKey(pool)) {             FPPool connection = new FPPool(casConfig.getPool().get(pool));             log.debug("Connected to CAS POOL \n {}", connection.getPoolInfo().toString());             connectionPool.put(pool, connection);         }         return connectionPool.get(pool);     }     protected FPClip openFpClip(FPPool pool, String casId) throws FPLibraryException {         return new FPClip(pool, casId, FPLibraryConstants.FP_OPEN_FLAT);     }

Options used:

    nodeselection: 1

    retrysleep: 10

    retrycount: 3

    maxconnections: 500

    embedding_threshold: 30720

    openstrategy: 1

Opening with FPLibraryConstants.FP_OPEN_FLAT.

Files vary in size but are generally less than 1MB.

Thanks.