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Posted to issues-all@impala.apache.org by "ASF subversion and git services (Jira)" <ji...@apache.org> on 2020/08/07 03:54:00 UTC

[jira] [Commented] (IMPALA-9851) Query status can be unbounded in size

    [ https://issues.apache.org/jira/browse/IMPALA-9851?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17172800#comment-17172800 ] 

ASF subversion and git services commented on IMPALA-9851:
---------------------------------------------------------

Commit 86b70e9850cce0b45194a64cd89ae21df0e82029 in impala's branch refs/heads/master from Riza Suminto
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=86b70e9 ]

IMPALA-9851: Truncate long error message.

Error message length was unbounded and can grow very large into couple
of MB in size. This patch truncate error message to maximum 128kb in
size.

This patch also fix potentially long error message related to
BufferPool::Client::DebugString(). Before this patch, DebugString() will
print all pages in 'pinned_pages_', 'dirty_unpinned_pages_', and
'in_flight_write_pages_' PageList. With this patch, DebugString() only
include maximum of 100 first pages in each PageList.

Testing:
- Add be test BufferPoolTest.ShortDebugString
- Add test within ErrorMsg.GenericFormatting to test for truncation.
- Run and pass core tests.

Change-Id: Ic9fa4d024fb3dc9de03c7484f41b5e420a710e5a
Reviewed-on: http://gerrit.cloudera.org:8080/16300
Reviewed-by: Impala Public Jenkins <im...@cloudera.com>
Tested-by: Impala Public Jenkins <im...@cloudera.com>


> Query status can be unbounded in size
> -------------------------------------
>
>                 Key: IMPALA-9851
>                 URL: https://issues.apache.org/jira/browse/IMPALA-9851
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Backend
>            Reporter: Tim Armstrong
>            Assignee: Riza Suminto
>            Priority: Minor
>              Labels: newbie, ramp-up
>
> We got a report of a query status that was 10s of MB in size. We should avoid this. Probably we should do 2 things: 1) not include the giant debug string in this error message and 2) cap the error message size somewhere to a sane size, e.g. some number of kiloybytes (not sure where the best place is to implement this)
> {noformat}
> annot perform hash join at node with id 3. Repartitioning did not reduce the size of a spilled partition. Repartitioning level 2. Number of rows 106305207:nPartitionedHashJoinNode (id=3 op=5 state=RepartitioningBuild #spilled_partitions=0)nPhjBuilder: Hash partitions: 16:n Hash partition 0 <Partition>: ptr=0x1f395c020 Closedn Hash partition 1 <Partition>: ptr=0x4db0a6700 Closedn Hash partition 2 <Partition>: ptr=0xd4145b20 Closedn Hash partition 3 <Partition>: ptr=0x494467860 Closedn Hash partition 4 <Partition>: ptr=0xd4145c40 Closedn Hash partition 5 <Partition>: ptr=0x38efb3be0 Closedn Hash partition 6 <Partition>: ptr=0x4db0a7bc0 Closedn Hash partition 7 <Partition>: ptr=0x14dcd2040 Closedn Hash partition 8 <Partition>: ptr=0x14dcd3500 Closedn Hash partition 9 <Partition>: ptr=0x4febfe40 Closedn Hash partition 10 <Partition>: ptr=0xd4145ec0 Spilledn    Build Rows: 106305207 (Bytes pinned: 0)nn Hash partition 11 <Partition>: ptr=0x7f34acfb8040 Closedn Hash partition 12 <Partition>: ptr=0x14dcd3e00 Closedn Hash partition 13 <Partition>: ptr=0x4944661e0 Closedn Hash partition 14 <Partition>: ptr=0xd4145740 Closedn Hash partition 15 <Partition>: ptr=0x7f1cc7566c00 ClosednProbe hash partitions: 0:nInputPartition: 0x1dfe9a5f0n   Build Partition Closedn   Spilled Probe Rows: 2608nn<BufferPool::Client> 0x12f09320 internal state: {<BufferPool::Client> 0x7f30643f8780 name: HASH_JOIN_NODE id=3 ptr=0x12f09180 write_status:  buffers allocated 0 num_pages: 189834 pinned_bytes: 65536 dirty_unpinned_bytes: 12127043584 in_flight_write_bytes: 3145728 reservation: {<ReservationTracker>: reservation_limit 9223372036854775807 reservation 12441812992 used_reservation 65536 child_reservations 65536 parent:n<ReservationTracker>: reservation_limit 9223372036854775807 reservation 12479561728 used_reservation 0 child_reservations 12479561728 parent:n<ReservationTracker>: reservation_limit 12800000000 reservation 12481593344 used_reservation 0 child_reservations 12481593344 parent:n<ReservationTracker>: reservation_limit 273804165120 reservation 12665946112 used_reservation 0 child_reservations 12665946112 parent:nNULL}n  1 pinned pages: <BufferPool::Page> 0x7f348aab4140 len: 65536 pin_count: 1 buf: <BufferPool::BufferHandle> 0x7f348aab41b8 client: 0x12f09320/0x7f30643f8780 data: 0x15e32000 len: 65536nn  185044 dirty unpinned pages: <BufferPool::Page> 0xc676b020 len: 65536 pin_count: 0 buf: <BufferPool::BufferHandle> 0xc676b098 client: 0x12f09320/0x7f30643f8780 data: 0x2ed4a0000 len: 65536n<BufferPool::Page> 0xc6769180 len: 65536 pin_count: 0 buf: <BufferPool::BufferHandle> 0xc67691f8 client: 0x12f09320/0x7f30643f8780 data: 0x2ed4b0000 len: 65536n<BufferPool::Page> 0xc676a260 len: 65536 pin_count: 0 buf: <BufferPool::BufferHandle> 0xc676a2d8 client: 0x12f09320/0x7f30643f8780 data: 0x2ed4c0000 len: 65536n<BufferPool::Page> 0xc676b660 len: 65536 pin_count: 0 buf: <BufferPool::BufferHandle> 0xc676b6d8 client: 0x12f09320/0x7f30643f8780 data: 0x2ed4d0000 len: 65536n<BufferPool::Page> 0xc67685a0 len: 65536 pin_count: 0 buf: <BufferPool::BufferHandle> 0xc6768618 client: 0x12f09320/0x7f30643f8780 data: 0x2ed4e0000 len: 65536n<BufferPool::Page> 0xc676bd40 len: 65536 pin_count: 0 buf: <BufferPool::BufferHandle> 0xc676bdb8 client: 0x12f09320/0x7f30643f8780 data: 0x2ed4f0000 len: 65536n<BufferPool::Page> 0xc676a580 len: 65536 pin_count: 0 buf: <BufferPool::BufferHandle> 0xc676a5f8 client: 0x12f09320/0x7f30643f8780 data: 0x2ed500000 len: 65536n<BufferPool::Page> 0xc676a940 len: 65536 pin_count: 0 buf: <BufferPool::BufferHandle> 0xc676a9b8 client: 0x12f09320/0x7f30643f8780 data: 0x2ed526000 len: 65536n<BufferPool::Page> 0xc676a6c0 len: 65536 pin_count: 0 buf: <BufferPool::BufferHandle> 0xc676a738 client: 0x12f09320/0x7f30643f8780 data: 0x2ed536000 len: 65536n<BufferPool::Page> 0xc67699a0 len: 65536 pin_count: 0 buf: <BufferPool::BufferHandle> 0xc6769a18 client: 0x12f09320/0x7f30643f8780 data: 0x2ed546000 len: 65536n<BufferPool::Page> 0x1652ee8c0 len: 65536 pin_count: 0 buf: <BufferPool::BufferHandle> 0x1652ee938 client: 0x12f09320/0x7f30643f8780 data: 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> {noformat}



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