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From "Dinesh Chitlangia (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDDS-1889) Add support for verifying multiline log entry
Date Thu, 01 Aug 2019 14:19:00 GMT
Dinesh Chitlangia created HDDS-1889:
---------------------------------------

             Summary: Add support for verifying multiline log entry
                 Key: HDDS-1889
                 URL: https://issues.apache.org/jira/browse/HDDS-1889
             Project: Hadoop Distributed Data Store
          Issue Type: Test
          Components: test
            Reporter: Dinesh Chitlangia


This jira aims to test the failure scenario where a multi-line stack trace will be added in
the audit log. Currently, for test assumes that even in failure scenario we don't have multi-line
log entry.
Example:

{code:java}
private static final AuditMessage READ_FAIL_MSG =
      new AuditMessage.Builder()
          .setUser("john")
          .atIp("192.168.0.1")
          .forOperation(DummyAction.READ_VOLUME.name())
          .withParams(PARAMS)
          .withResult(FAILURE)
          .withException(null).build();
{code}

Therefore in verifyLog() we only compare for first line of the log file with the expected
message.
The test would fail if in future someone were to create a scenario with multi-line log entry.

1. Update READ_FAIL_MSG so that it has multiple lines of Exception stack trace.
This is what multi-line log entry could look like:
{code:java}
ERROR | OMAudit | user=dchitlangia | ip=127.0.0.1 | op=GET_ACL {volume=volume80100, bucket=bucket83878,
key=null, aclType=CREATE, resourceType=volume, storeType=ozone} | ret=FAILURE
org.apache.hadoop.ozone.om.exceptions.OMException: User dchitlangia doesn't have CREATE permission
to access volume
 at org.apache.hadoop.ozone.om.OzoneManager.checkAcls(OzoneManager.java:1809) ~[classes/:?]
 at org.apache.hadoop.ozone.om.OzoneManager.checkAcls(OzoneManager.java:1769) ~[classes/:?]
 at org.apache.hadoop.ozone.om.OzoneManager.createBucket(OzoneManager.java:2092) ~[classes/:?]
 at org.apache.hadoop.ozone.protocolPB.OzoneManagerRequestHandler.createBucket(OzoneManagerRequestHandler.java:526)
~[classes/:?]
 at org.apache.hadoop.ozone.protocolPB.OzoneManagerRequestHandler.handle(OzoneManagerRequestHandler.java:185)
~[classes/:?]
 at org.apache.hadoop.ozone.protocolPB.OzoneManagerProtocolServerSideTranslatorPB.submitRequestDirectlyToOM(OzoneManagerProtocolServerSideTranslatorPB.java:192)
~[classes/:?]
 at org.apache.hadoop.ozone.protocolPB.OzoneManagerProtocolServerSideTranslatorPB.submitRequest(OzoneManagerProtocolServerSideTranslatorPB.java:110)
~[classes/:?]
 at org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos$OzoneManagerService$2.callBlockingMethod(OzoneManagerProtocolProtos.java)
~[classes/:?]
 at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:524)
~[hadoop-common-3.2.0.jar:?]
 at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1025) ~[hadoop-common-3.2.0.jar:?]
 at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:876) ~[hadoop-common-3.2.0.jar:?]
 at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:822) ~[hadoop-common-3.2.0.jar:?]
 at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_144]
 at javax.security.auth.Subject.doAs(Subject.java:422) ~[?:1.8.0_144]
 at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1730) ~[hadoop-common-3.2.0.jar:?]
 at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2682) ~[hadoop-common-3.2.0.jar:?]

{code}

2. Update verifyLog method to accept variable number of arguments.
3. Update the assertion so that it compares beyond the first line when the expected in a multi-line
log entry.
{code:java}
assertTrue(expected.equalsIgnoreCase(lines.get(0)));
{code}




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