Summary:
* Add VersionInfoUtil to determine if a client has a specified version or better
* Add an exception type to say that the response should be chunked
* Add on client knowledge of retry exceptions
* Add on metrics for how often this happens
Test Plan: Added a unit test
Differential Revision: https://reviews.facebook.net/D51771
* make sure the test classifications are in test scope for their use in the hadoop-compat modules
* added a test category for 'metrics related' since that's what all these tests are for
* categorized tests as small,metrics
First pass. Plumbs up metrics for each connection instance. Exposes
static information about those connections (zk quorum and root node,
cluster id, user). Exposes basic thread pool utilization gauges for
"meta lookup" and "batch" pools.
API conflicts and test fixes
Update LoadTestTool.COLUMN_FAMILY -> DEFAULT_COLUMN_FAMILY due HBASE-11842
Use new 1.0+ api in some tests
Use updated Scanners internal api
Fix to take into account HBASE-13203 - procedure v2 table delete
Conflicts:
hbase-client/src/main/java/org/apache/hadoop/hbase/client/HBaseAdmin.java
hbase-client/src/main/java/org/apache/hadoop/hbase/protobuf/ProtobufUtil.java
hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterRpcServices.java
Summary: Add metrics on how many requests are exceptions and what type.
Test Plan: behold unit tests.
Differential Revision: https://reviews.facebook.net/D37167
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>
In HBASE-8370 "Report data block cache hit rates apart from aggregate cache hit rates"
discussion highlights small changes in caching percentage can make for large
changes in cache contents; e.g. lots of data blocks may be getting evicited
but because meta blocks -- index and blooms -- are staying in cache with
high hit rates, a large data block eviction may show as a small change in
overall cache percentage (e.g. from 99.99 to 99.11).
Changes the getBlockCacheHitPercent from an int to a double.
Also changes name of the jmx metric blockCountHitPercent to be
blockCacheCountHitPercent instead.
May be incompatible change.
Elliott Clark
ramkrishna
Lars Hofhansl
Vrishal Kulkarni
stack
Sanjeev Lakshmanan
Gary Helmling
Sean Busbey
Sanjeev Srivatsa
Andrew Purtell
Enis Soztutar
tedyu
Nick Dimiduk
Jonathan M Hsieh
Gábor Lipták
anoopsjohn
nke
Misty Stanley-Jones
Ashish Singhi
Michael Stack