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[IMPALA-6784] Upgrade gperftools to 2.6.90 or beyond
...There are some pretty good improvements to TCMalloc in 2.6.90. Previous attempt to upgrade to 2.6.3 was reverted due to IMPALA-6414 which has been fixed since then.gperftools 2.7rc is out!Ch...
, 2018-06-19, 20:36
[IMPALA-7049] Scan node reservation calculation seems off
...Running the query TPC-DS Q77a with a memory limit, we ran into the error HDFS scan min reservation 0 must be >= min buffer size 8192: Query Type: QUERY Query Sta...
, 2018-05-18, 23:21
[IMPALA-6907] ImpalaServer::MembershipCallback() may not remove all stale connections to disconnected Impalad nodes
...Currently, ImpalaServer::MembershipCallback() will remove stale connections to hosts which were removed from the cluster membership. while (loc_entry != query_locations_....
, 2018-05-16, 02:53
[IMPALA-6781] Stress tests should take into account of non-deterministic results of queries
...Certain queries have the pattern of ordery-by with a limit clause. Due to the limit clause, we may not include all the rows for a given order-by keys in the output. It's non-deterministic th...
, 2018-05-10, 16:25
[IMPALA-6617] Preconditions.checkState(val.getColValsSize() == 1); in EvalExprWithoutRow()
...Hit this when running an exhaustive build at this commit. KRPC was disabled.query_test/test_queries.py:111: in test_subquery self.run_test_case('QueryTest/subquery', vector)comm...
, 2018-05-09, 23:20
[IMPALA-6908] IsConnResetTException() should include ECONNRESET
...IsConnReset() aims to check if the given exception is due to a stale connection. Apparently, it's missing the case in which the error code is ECONNRESET.bool IsConnResetTException(const TTra...
, 2018-05-08, 22:36
[IMPALA-6767] java.lang.NoSuchMethodError: org.apache.sentry.provider.db.service.thrift.SentryPolicyServiceClient.listAllRoles(Ljava/lang/String;)Ljava/util/Set;
...Sentry failed with the following errors when starting the mini-cluster. It's unclear if it's due to a bad jar file or there was something else broken. Attaching the build artifacts for refer...
, 2018-04-30, 18:46
[IMPALA-6159] DataStreamSender should transparently handle some connection reset by peer
...A client to server KRPC connection can become stale if the socket was closed on the server side due to various reasons such as idle connection removal or remote Impalad restart. Currently, t...
, 2018-04-24, 21:52
[IMPALA-5558] Query hang after coordinator crash because DoRpc(ReportExecStatus) fails and is not retried
...The following loop aims to retry the RPC for up to 3 times when reporting exec status of a fragment instance to the coordinator. However, it's not very effective because we didn't check out ...
, 2018-04-18, 23:22
[IMPALA-4319] Remove unused query options in compat-breaking version
...The query option SCAN_NODE_CODEGEN_THRESHOLD was added to tackle IMPALA-1755 but it has since been subsumed by the fix of IMPALA-3629.MAX_IO_BUFFERS is also unused.SCAN_NODE_CODEGEN_THRESHOL...
, 2018-04-17, 22:58
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