IMPALA-6447: remove Python 2.7 dictionary comprehensions
In the fix for IMPALA-6441, we began importing from the stress test
(concurrent_select.py). The import fails on some downstream environments
that use Python 2.6. The failure is due to the fact that
concurrent_select.py uses a few dictionary
IMPALA-3916: Reserve SQL:2016 reserved words
This patch reserves SQL:2016 reserved words, excluding:
1. Impala builtin function names.
2. Time unit words(year, month, etc.).
3. An exception list based on a discussion.
Some test cases are modified to avoid these words. A impalad and
catalogd
IMPALA-5528: Bump total thread cache size when KRPC is enabled
KRPC in general tends to put more pressure on the thread
caches due to allocations of more small objects (i.e. <1MB).
While some of them are being addressed in KUDU-1865, it's shown
that the following TCMalloc workarounds will provide
IMPALA-6454: CTAS into Kudu fails with mixed-case partition or primary key
column names.
CTAS into Kudu fails if the primary key and/or the partition column names are
not
specified in lower case.The problem is that we pass in the primary key column
names
directly from the parser instead we
IMPALA-6450: fix EventSequence::Start()
It looks like this newly-added DCHECK is being hit because of the same
underlying issue as IMPALA-4631. This patch loosens the DCHECK to accept
time going backward 1 tick, the same as the original workaround for
IMPALA-4631.
'offset_' also isn't being
IMPALA-6346: Potential deadlock in KrpcDataStreamMgr
In KrpcDataStreamMgr::CreateRecvr() we take the lock_ and
then call recvr->TakeOverEarlySender() for all contexts.
recvr->TakeOverEarlySender() then calls
recvr_->mgr_->EnqueueDeserializeTask((), which can block if the
deserialize pool queue is
IMPALA-3562: support column restriction for compute stats
The 'compute stats' statement currently computes column-level
statistics for all columns of a table.
This adds potentially unneeded work for columns whose stats
are not needed by queries. It can be especially costly for
very wide tables
IMPALA-6303: [DOCS] Fix incorrect mention of DataNodes
The documentation on Impala Components (https://impala.apache.org/
docs/build/html/topics/impala_components.html) incorrectly states
"... catalog service relays the metadata changes from Impala SQL
statements to all the DataNodes in a cluster
IMPALA-6455: unique tmpdirs for test_partition_metadata_compatibility
Concurrent hive statements running in local mode can race to modify
the contents of temporary directories - see IMPALA-6108. This applies
the workaround for IMPALA-6108 to the run_stmt_in_hive() utility
function, which is used
IMPALA-6430: Log relevant debug pages if wait_for_metric_value times out
Log the memz, metrics and query page if the method wait_for_metric_value
times out. This would help us understand the state of the defaulting
impalad when the time out happens.
Change-Id:
IMPALA-6242: Change runtime-profile-test into using the same clock
In runtime-profile-test, both MonotonicStopWatch::Now() and
MonotonicNanos() are used. The former may use CLOCK_MONOTONIC_COARSE or
CLOCK_MONOTONIC while the latter always uses CLOCK_MONOTONIC. This may
contribute to the flakiness
IMPALA-6215: Removes race when using LibCache.
LibCache's api to provide access to locally cached files has a race.
Currently, the client of the cache accesses the locally cached path
as a string, but nothing guarantees that the associated file is not
removed before the client is done using it.
IMPALA-6193: Track memory of incoming data streams
This change adds memory tracking to incoming transmit data RPCs when
using KRPC. We track memory against a global tracker called "Data Stream
Service" until it is handed over to the stream manager. There we track
it in a global tracker called
IMPALA-3282: Adds regexp_escape built-in function
Escapes the following special characters in RE2 library:
.\+*?[^]$(){}=!<>|:-
Testing:
Add some unit tests into ExprTest.StringRegexpFunctions
Add some E2E tests into exprs.test
Change-Id: I84c3e0ded26f6eb20794c38b75be9b25cd111e4b
Reviewed-on:
IMPALA-6429: Fix decimal division
Before this patch, it was possible for an overflow to not be detected
when doing a decimal division. When scaling up the dividend before
doing the division, we do not check for overflow. This is ok if the
we are scaling up by 10^38 or less because the result is
IMPALA-6441 addendum: fix reading rows from HS2 via Impyla
When fetching explain output from HS2 using Impyla, rows come back in
lists of 1-tuples.
This patch exhibits the need to do end-to-end testing when the case
warrants. In this case, although the unit test for
IMPALA-6024: Min sample bytes for COMPUTE STATS TABLESAMPLE
Adds a new query option COMPUTE_STATS_MIN_SAMPLE_SIZE
which is the minimum number of bytes that will be scanned
in COMPUTE STATS TABLESAMPLE, regardless of the user-supplied
sampling percent.
The motivation is to prevent sampling for
IMPALA-2642: Fix a potential deadlock in statestore
The statestored can deadlock if the number of subscribers has
reached STATESTORE_MAX_SUBSCRIBERS, because the DoSubscriberUpdate()
method calls OfferUpdate(), while holding subscribers_lock_, which
also tries to take the same lock in this
Repository: impala
Updated Branches:
refs/heads/master ff86feaa6 -> a018038df
IMPALA-6471: [docs] Corrected ALTER TABLE ADD PARTITION syntax for Kudu table
Change-Id: I70c49286ed6e250707a6edb5ecd77448d1142d0c
Reviewed-on: http://gerrit.cloudera.org:8080/9187
Reviewed-by: Thomas
IMPALA-5990: End-to-end compression of metadata
Currently the catalog data is compressed in the statestore, but
uncompressed when passed between FE and BE. It results in a ~2GB limit
on the metadata. IMPALA-3499 introduced a workaround in the impalad but
there isn't one in the catalogd. This
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