com.jcraft.jsch.JSchException: Algorithm negotiation fail

[vijaythamalla]

Hi, I have added com.springml:spark-sftp_2.11:1.1.3 and com.jcraft:jsch:0.1.55 to the databricks cluster. I'm also using dbfs/dbfs/tmp idea to resolve the issue but I keep getting the same error. If anyone resolved the issue, could you please provide me with some pointers?

com.jcraft.jsch.JSchException: Algorithm negotiation fail

Py4JJavaError Traceback (most recent call last)
File :1
----> 1 df = spark.read
2 .format("com.springml.spark.sftp")
3 .option("host", "")
4 .option("username", "")
5 .option("pem", "")
6 .option("tempLocation", "/dbfs/tmp/")
7 .option("hdfsTempLocation", "/dbfs/dbfs/tmp/")
8 .option("fileType", "parquet")
9 .option("createDF", "true")
10 .load("")

File /databricks/spark/python/pyspark/instrumentation_utils.py:48, in _wrap_function..wrapper(*args, **kwargs)
46 start = time.perf_counter()
47 try:
---> 48 res = func(*args, **kwargs)
49 logger.log_success(
50 module_name, class_name, function_name, time.perf_counter() - start, signature
51 )
52 return res

File /databricks/spark/python/pyspark/sql/readwriter.py:302, in DataFrameReader.load(self, path, format, schema, **options)
300 self.options(**options)
301 if isinstance(path, str):
--> 302 return self._df(self._jreader.load(path))
303 elif path is not None:
304 if type(path) != list:

File /databricks/spark/python/lib/py4j-0.10.9.5-src.zip/py4j/java_gateway.py:1321, in JavaMember.call(self, *args)
1315 command = proto.CALL_COMMAND_NAME +
1316 self.command_header +
1317 args_command +
1318 proto.END_COMMAND_PART
1320 answer = self.gateway_client.send_command(command)
-> 1321 return_value = get_return_value(
1322 answer, self.gateway_client, self.target_id, self.name)
1324 for temp_arg in temp_args:
1325 temp_arg._detach()

File /databricks/spark/python/pyspark/errors/exceptions.py:228, in capture_sql_exception..deco(*a, **kw)
226 def deco(*a: Any, **kw: Any) -> Any:
227 try:
--> 228 return f(*a, **kw)
229 except Py4JJavaError as e:
230 converted = convert_exception(e.java_exception)

File /databricks/spark/python/lib/py4j-0.10.9.5-src.zip/py4j/protocol.py:326, in get_return_value(answer, gateway_client, target_id, name)
324 value = OUTPUT_CONVERTER[type](answer[2:], gateway_client)
325 if answer[1] == REFERENCE_TYPE:
--> 326 raise Py4JJavaError(
327 "An error occurred while calling {0}{1}{2}.\n".
328 format(target_id, ".", name), value)
329 else:
330 raise Py4JError(
331 "An error occurred while calling {0}{1}{2}. Trace:\n{3}\n".
332 format(target_id, ".", name, value))

Py4JJavaError: An error occurred while calling o747.load.
: com.jcraft.jsch.JSchException: Algorithm negotiation fail
at com.jcraft.jsch.Session.receive_kexinit(Session.java:582)
at com.jcraft.jsch.Session.connect(Session.java:320)
at com.jcraft.jsch.Session.connect(Session.java:183)
at com.springml.sftp.client.SFTPClient.createSFTPChannel(SFTPClient.java:275)
at com.springml.sftp.client.SFTPClient.copy(SFTPClient.java:73)
at com.springml.spark.sftp.DefaultSource.copy(DefaultSource.scala:212)
at com.springml.spark.sftp.DefaultSource.createRelation(DefaultSource.scala:80)
at com.springml.spark.sftp.DefaultSource.createRelation(DefaultSource.scala:41)
at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:387)
at org.apache.spark.sql.DataFrameReader.loadV1Source(DataFrameReader.scala:378)
at org.apache.spark.sql.DataFrameReader.$anonfun$load$2(DataFrameReader.scala:334)
at scala.Option.getOrElse(Option.scala:189)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:334)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:240)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:380)
at py4j.Gateway.invoke(Gateway.java:306)
at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
at py4j.commands.CallCommand.execute(CallCommand.java:79)
at py4j.ClientServerConnection.waitForCommands(ClientServerConnection.java:195)
at py4j.ClientServerConnection.run(ClientServerConnection.java:115)
at java.lang.Thread.run(Thread.java:750)