Incompatible changes called out in release notes on jira.
* Cleaned up references to HLog
* Deprecates HLogKey but maintains it for compatibility
- Moves all Writeable from WALKey to HLogKey
* Adds utility code to CoprocessorHost to help with evolving Coprocessor APIs
* RSRpcServices roll WAL call now requests the non-meta LogRoller roll all logs
- rolls actually happen asynchronously
- deprecated old api (and noted incompatible behavior change)
- modified api in new Admin interface to reflect lack of return values.
* Moved WAL user facing API to "WAL"
- only 1 sync offered
- WALTrailer removed from API
* make provider used by the WALFactory configurable.
* Move all WAL requests to use opaque ids instead of paths
* WALProvider provides API details for implementers and handles creation of WALs.
* Refactor WALActionsListener to have a basic implementation.
* turn MetricsWAL into a WALActionsListener.
* tests that needs FSHLog implementation details use them directly, others just reference provider + factory
- Some tests moved from Large to Medium based on run time.
* pull out wal disabling into its own no-op class
* update region open to delegate to WALFactory
* update performance test tool to allow for multiple regions
* Removed references to meta-specific wals within wal code
- replaced with generic suffixes
- WALFactory maintains a dedicated WALProvider for meta (and so knows about the distinction)
* maintain backwards compat on HLogPrettyPrinter and mark it deprecated.
- made WALPrettyPrinter IA.Private in favor of `bin/hbase wal`
* move WALUtil stuff that's implementation specific to said implementation
- WALUtil now acts as an integration point between the RegionServer and hte WAL code.
Incorporates contributions from v.himanshu.
Signed-off-by: stack <stack@apache.org>
Summary: This diff ports the Preemptive Fast Fail feature to OSS. In multi threaded clients, we use a feature developed on 0.89-fb branch called Preemptive Fast Fail. This allows the client threads which would potentially fail, fail fast. The idea behind this feature is that we allow, among the hundreds of client threads, one thread to try and establish connection with the regionserver and if that succeeds, we mark it as a live node again. Meanwhile, other threads which are trying to establish connection to the same server would ideally go into the timeouts which is effectively unfruitful. We can in those cases return appropriate exceptions to those clients instead of letting them retry.
Test Plan: Unit tests
Differential Revision: https://reviews.facebook.net/D24177
Signed-off-by: stack <stack@apache.org>
Summary: This is a follow up diff for the jira to add the functionality to update configs in an online fashion.
Test Plan: Unit test. This adds an end point on the regionserver. It just tries to call the end point and make sure the call succeeds.
Differential Revision: https://reviews.facebook.net/D24861
Signed-off-by: stack <stack@apache.org>
Summary: # Clear the cache of the server when failed
Test Plan: Add testcase `TestHTableMultiplexerFlushCache` to reproduce the bug.
Differential Revision: https://reviews.facebook.net/D24603
Signed-off-by: Elliott Clark <elliott@fb.com>
Signed-off-by: Elliott Clark <eclark@apache.org>
stack
Sean Busbey
Enis Soztutar
Srikanth Srungarapu
Nick Dimiduk
Lars Hofhansl
Jeffrey Zhong
Andrew Purtell
Ashish Singhi
manukranthk
Elliott Clark
Matteo Bertozzi
Ted Yu
Jimmy Xiang
Yi Deng