[
https://issues.apache.org/jira/browse/HUDI-1502?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Vinoth Chandar updated HUDI-1502:
---------------------------------
Status: Patch Available (was: In Progress)
> Restore on MOR table leaves metadata table out-of-sync from data table
> ----------------------------------------------------------------------
>
> Key: HUDI-1502
> URL: https://issues.apache.org/jira/browse/HUDI-1502
> Project: Apache Hudi
> Issue Type: Sub-task
> Components: Writer Core
> Reporter: Vinoth Chandar
> Assignee: Vinoth Chandar
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 0.7.0
>
> Attachments: image-2021-01-03-22-48-54-646.png
>
>
> Below is the stack trace from running `TestHoodieBackedMetadata#testSync` on
> MOR tables. This seems like a more fundamental issue with deleting instant
> files, during restore.
> So what happens is that we restore which rolls back a delta commit that has
> not been synced yet. (20210103224054 in the e.g) And that delta commit has
> introduced a new log file, which has not been added to the metadata table.
> But the restore effectively deletes the 20210103224054.deltacommit.
> {code}
> Commit 20210103224042 added HoodieKey { recordKey=2016/03/15
> partitionPath=files} HoodieMetadataPayload {key=2016/03/15, type=2,
> creations=[6b8f2187-5505-40ae-845e-a71a2163d064-0_4-2-6_20210103224041.parquet],
> deletions=[], }
> HoodieKey { recordKey=2015/03/16 partitionPath=files}
> HoodieMetadataPayload {key=2015/03/16, type=2,
> creations=[028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_1-9-19_20210103224042.parquet,
> 25c9a174-4c07-43a1-a1a2-40454a3f0310-0_0-9-18_20210103224042.parquet],
> deletions=[], }
> HoodieKey { recordKey=2015/03/17 partitionPath=files}
> HoodieMetadataPayload {key=2015/03/17, type=2,
> creations=[2ab899de-4745-43c5-9fa4-d09721d3aa91-0_1-2-3_20210103224041.parquet,
> 4733dbda-7824-4411-a708-4b2d978f887b-0_4-9-22_20210103224042.parquet,
> 532a6f9b-ca89-4b96-84b7-0e3b13068b4b-0_3-9-21_20210103224042.parquet,
> 6842e596-46b3-4546-9faa-8a7f8c674a17-0_0-2-2_20210103224041.parquet,
> 7f0635d7-126e-40b6-9677-7fd8a123d5b9-0_3-2-5_20210103224041.parquet,
> d1906fdc-66ca-48a4-86b6-687c865d939d-0_2-9-20_20210103224042.parquet,
> fd446460-a662-434a-a6ab-1cd498af94ca-0_2-2-4_20210103224041.parquet],
> deletions=[], }
> HoodieKey { recordKey=__all_partitions__ partitionPath=files}
> HoodieMetadataPayload {key=__all_partitions__, type=1, creations=[2015/03/16,
> 2015/03/17, 2016/03/15], deletions=[], }
> Syncing [20210103224045__deltacommit__COMPLETED] to metadata table.
> Commit 20210103224045 added HoodieKey { recordKey=2016/03/15
> partitionPath=files} HoodieMetadataPayload {key=2016/03/15, type=2,
> creations=[6b8f2187-5505-40ae-845e-a71a2163d064-0_0-31-52_20210103224045.parquet],
> deletions=[], }
> HoodieKey { recordKey=2015/03/16 partitionPath=files}
> HoodieMetadataPayload {key=2015/03/16, type=2,
> creations=[25c9a174-4c07-43a1-a1a2-40454a3f0310-0_1-31-53_20210103224045.parquet],
> deletions=[], }
> HoodieKey { recordKey=2015/03/17 partitionPath=files}
> HoodieMetadataPayload {key=2015/03/17, type=2,
> creations=[2ab899de-4745-43c5-9fa4-d09721d3aa91-0_2-31-54_20210103224045.parquet],
> deletions=[], }
> HoodieKey { recordKey=__all_partitions__ partitionPath=files}
> HoodieMetadataPayload {key=__all_partitions__, type=1, creations=[2015/03/16,
> 2015/03/17, 2016/03/15], deletions=[], } >>> (after compaction) State at
> 20210103224051 files
> .028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_20210103224042.log.1_0-100-148
> 028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_1-9-19_20210103224042.parquet
>
> 028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_3-110-170_20210103224051.parquet
> 25c9a174-4c07-43a1-a1a2-40454a3f0310-0_0-9-18_20210103224042.parquet
> 25c9a174-4c07-43a1-a1a2-40454a3f0310-0_1-31-53_20210103224045.parquet
>
> >>> (after delete) State at 20210103224052 files
> .028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_20210103224042.log.1_0-100-148
> 028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_1-9-19_20210103224042.parquet
>
> 028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_3-110-170_20210103224051.parquet
> 25c9a174-4c07-43a1-a1a2-40454a3f0310-0_0-9-18_20210103224042.parquet
> 25c9a174-4c07-43a1-a1a2-40454a3f0310-0_1-31-53_20210103224045.parquet
>
> >>> (after clean) State at 20210103224053 files
>
> 028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_3-110-170_20210103224051.parquet
> 25c9a174-4c07-43a1-a1a2-40454a3f0310-0_1-31-53_20210103224045.parquet
>
> >>> (after update) State at 20210103224054 files
> .028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_20210103224051.log.1_1-160-262
> .25c9a174-4c07-43a1-a1a2-40454a3f0310-0_20210103224045.log.1_2-160-263
>
> 028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_3-110-170_20210103224051.parquet
> 25c9a174-4c07-43a1-a1a2-40454a3f0310-0_1-31-53_20210103224045.parquet
>
> >>> (after restore) State after restore files
> .028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_20210103224051.log.1_1-160-262
> .028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_20210103224051.log.2_1-0-1
> .25c9a174-4c07-43a1-a1a2-40454a3f0310-0_20210103224045.log.1_2-160-263
> .25c9a174-4c07-43a1-a1a2-40454a3f0310-0_20210103224045.log.2_1-0-1
>
> 028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_3-110-170_20210103224051.parquet
> 25c9a174-4c07-43a1-a1a2-40454a3f0310-0_1-31-53_20210103224045.parquet
> Syncing [20210103224047__deltacommit__COMPLETED] to metadata table.
> Commit 20210103224047 added HoodieKey { recordKey=2015/03/17
> partitionPath=files} HoodieMetadataPayload {key=2015/03/17, type=2,
> creations=[.2ab899de-4745-43c5-9fa4-d09721d3aa91-0_20210103224045.log.1_2-68-104,
> .532a6f9b-ca89-4b96-84b7-0e3b13068b4b-0_20210103224042.log.1_3-68-105,
> .6842e596-46b3-4546-9faa-8a7f8c674a17-0_20210103224041.log.1_1-68-103,
> .d1906fdc-66ca-48a4-86b6-687c865d939d-0_20210103224042.log.1_0-68-102],
> deletions=[], }
> HoodieKey { recordKey=__all_partitions__ partitionPath=files}
> HoodieMetadataPayload {key=__all_partitions__, type=1,
> creations=[2015/03/17], deletions=[], }
> Syncing [20210103224049__deltacommit__COMPLETED] to metadata table.
> Commit 20210103224049 added HoodieKey { recordKey=2015/03/16
> partitionPath=files} HoodieMetadataPayload {key=2015/03/16, type=2,
> creations=[.028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_20210103224042.log.1_0-100-148],
> deletions=[], }
> HoodieKey { recordKey=2015/03/17 partitionPath=files}
> HoodieMetadataPayload {key=2015/03/17, type=2,
> creations=[.2ab899de-4745-43c5-9fa4-d09721d3aa91-0_20210103224045.log.2_5-100-153,
> .4733dbda-7824-4411-a708-4b2d978f887b-0_20210103224042.log.1_1-100-149,
> .6842e596-46b3-4546-9faa-8a7f8c674a17-0_20210103224041.log.2_3-100-151,
> .7f0635d7-126e-40b6-9677-7fd8a123d5b9-0_20210103224041.log.1_6-100-154,
> .d1906fdc-66ca-48a4-86b6-687c865d939d-0_20210103224042.log.2_2-100-150,
> .fd446460-a662-434a-a6ab-1cd498af94ca-0_20210103224041.log.1_4-100-152],
> deletions=[], }
> HoodieKey { recordKey=__all_partitions__ partitionPath=files}
> HoodieMetadataPayload {key=__all_partitions__, type=1, creations=[2015/03/16,
> 2015/03/17], deletions=[], }
> Syncing [20210103224051__commit__COMPLETED] to metadata table.
> Commit 20210103224051 added HoodieKey { recordKey=2015/03/16
> partitionPath=files} HoodieMetadataPayload {key=2015/03/16, type=2,
> creations=[028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_3-110-170_20210103224051.parquet],
> deletions=[], }
> HoodieKey { recordKey=2015/03/17 partitionPath=files}
> HoodieMetadataPayload {key=2015/03/17, type=2,
> creations=[2ab899de-4745-43c5-9fa4-d09721d3aa91-0_0-110-167_20210103224051.parquet,
> 4733dbda-7824-4411-a708-4b2d978f887b-0_6-110-173_20210103224051.parquet,
> 532a6f9b-ca89-4b96-84b7-0e3b13068b4b-0_5-110-172_20210103224051.parquet,
> 6842e596-46b3-4546-9faa-8a7f8c674a17-0_1-110-168_20210103224051.parquet,
> 7f0635d7-126e-40b6-9677-7fd8a123d5b9-0_4-110-171_20210103224051.parquet,
> d1906fdc-66ca-48a4-86b6-687c865d939d-0_2-110-169_20210103224051.parquet,
> fd446460-a662-434a-a6ab-1cd498af94ca-0_7-110-174_20210103224051.parquet],
> deletions=[], }
> HoodieKey { recordKey=__all_partitions__ partitionPath=files}
> HoodieMetadataPayload {key=__all_partitions__, type=1, creations=[2015/03/16,
> 2015/03/17], deletions=[], }
> Syncing [20210103224053__clean__COMPLETED] to metadata table.
> Syncing [20210103224056__restore__COMPLETED] to metadata table.
> Restore Instant 20210103224056 metadata:
> [20210103224052] {2015/03/16={"partitionPath": "2015/03/16",
> "successDeleteFiles": [], "failedDeleteFiles": [], "appendFiles": {}},
> 2015/03/17={"partitionPath": "2015/03/17", "successDeleteFiles": [],
> "failedDeleteFiles": [], "appendFiles": {}}, 2016/03/15={"partitionPath":
> "2016/03/15", "successDeleteFiles": [], "failedDeleteFiles": [],
> "appendFiles": {}}}
> Restore Instant 20210103224056 metadata:
> [20210103224054] {2015/03/16={"partitionPath": "2015/03/16",
> "successDeleteFiles": [], "failedDeleteFiles": [], "appendFiles":
> {"file:/var/folders/nm/pf0yxwtn5n5dftzh09zbx36h0000gn/T/junit3448725349106849265/dataset/2015/03/16/.028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_20210103224051.log.2_1-0-1":
> 99,
> "file:/var/folders/nm/pf0yxwtn5n5dftzh09zbx36h0000gn/T/junit3448725349106849265/dataset/2015/03/16/.25c9a174-4c07-43a1-a1a2-40454a3f0310-0_20210103224045.log.2_1-0-1":
> 99}}, 2015/03/17={"partitionPath": "2015/03/17", "successDeleteFiles":
> ["file:/var/folders/nm/pf0yxwtn5n5dftzh09zbx36h0000gn/T/junit3448725349106849265/dataset/2015/03/17/4733dbda-7824-4411-a708-4b2d978f887b-0_3-160-264_20210103224054.parquet"],
> "failedDeleteFiles": [], "appendFiles":
> {"file:/var/folders/nm/pf0yxwtn5n5dftzh09zbx36h0000gn/T/junit3448725349106849265/dataset/2015/03/17/.532a6f9b-ca89-4b96-84b7-0e3b13068b4b-0_20210103224051.log.2_1-0-1":
> 99,
> "file:/var/folders/nm/pf0yxwtn5n5dftzh09zbx36h0000gn/T/junit3448725349106849265/dataset/2015/03/17/.4733dbda-7824-4411-a708-4b2d978f887b-0_20210103224051.log.1_1-0-1":
> 99,
> "file:/var/folders/nm/pf0yxwtn5n5dftzh09zbx36h0000gn/T/junit3448725349106849265/dataset/2015/03/17/.d1906fdc-66ca-48a4-86b6-687c865d939d-0_20210103224051.log.2_1-0-1":
> 99,
> "file:/var/folders/nm/pf0yxwtn5n5dftzh09zbx36h0000gn/T/junit3448725349106849265/dataset/2015/03/17/.7f0635d7-126e-40b6-9677-7fd8a123d5b9-0_20210103224051.log.2_1-0-1":
> 99,
> "file:/var/folders/nm/pf0yxwtn5n5dftzh09zbx36h0000gn/T/junit3448725349106849265/dataset/2015/03/17/.6842e596-46b3-4546-9faa-8a7f8c674a17-0_20210103224051.log.2_1-0-1":
> 99}}, 2016/03/15={"partitionPath": "2016/03/15", "successDeleteFiles": [],
> "failedDeleteFiles": [], "appendFiles":
> {"file:/var/folders/nm/pf0yxwtn5n5dftzh09zbx36h0000gn/T/junit3448725349106849265/dataset/2016/03/15/.6b8f2187-5505-40ae-845e-a71a2163d064-0_20210103224045.log.2_1-0-1":
> 99}}}
> Rollback/Restore 20210103224056
> deleted :
> 2015/03/17=[4733dbda-7824-4411-a708-4b2d978f887b-0_3-160-264_20210103224054.parquet],
>
> appended :
> 2016/03/15={.6b8f2187-5505-40ae-845e-a71a2163d064-0_20210103224045.log.2_1-0-1=99}
>
> 2015/03/16={.25c9a174-4c07-43a1-a1a2-40454a3f0310-0_20210103224045.log.2_1-0-1=99,
> .028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_20210103224051.log.2_1-0-1=99}
>
> 2015/03/17={.7f0635d7-126e-40b6-9677-7fd8a123d5b9-0_20210103224051.log.2_1-0-1=99,
> .d1906fdc-66ca-48a4-86b6-687c865d939d-0_20210103224051.log.2_1-0-1=99,
> .6842e596-46b3-4546-9faa-8a7f8c674a17-0_20210103224051.log.2_1-0-1=99,
> .532a6f9b-ca89-4b96-84b7-0e3b13068b4b-0_20210103224051.log.2_1-0-1=99,
> .4733dbda-7824-4411-a708-4b2d978f887b-0_20210103224051.log.1_1-0-1=99}
> >>> (after pending rollback) State at 20210103224920 files
> .028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_20210103224051.log.1_1-160-262
> .028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_20210103224051.log.2_1-0-1
> .25c9a174-4c07-43a1-a1a2-40454a3f0310-0_20210103224045.log.1_2-160-263
> .25c9a174-4c07-43a1-a1a2-40454a3f0310-0_20210103224045.log.2_1-0-1
>
> 028cc15e-85ef-4b6f-b6f1-a1aa01131dbc-0_3-110-170_20210103224051.parquet
> 25c9a174-4c07-43a1-a1a2-40454a3f0310-0_1-31-53_20210103224045.parquet
>
> {code}
> This means, when the sync later runs. It will not any chance of adding the
> log file to metadata table. i.e we end up with a missed log file. Below you
> can see that at the time the sync actually runs, it does not have the
> instants to sync
> {code:java}
> vmacs:dataset vs$ ls -lrt
> /var/folders/nm/pf0yxwtn5n5dftzh09zbx36h0000gn/T/junit3448725349106849265/dataset/.hoodie/metadata/.hoodie/
> total 40
> drwxr-xr-x 2 vs staff 64 Jan 3 22:40 archived
> -rw-r--r-- 1 vs staff 360 Jan 3 22:40 hoodie.properties
> -rw-r--r-- 1 vs staff 0 Jan 3 22:40
> 20210103224042.deltacommit.requested
> -rw-r--r-- 1 vs staff 982 Jan 3 22:40 20210103224042.deltacommit.inflight
> -rw-r--r-- 1 vs staff 1981 Jan 3 22:40 20210103224042.deltacommit
> -rw-r--r-- 1 vs staff 0 Jan 3 22:40
> 20210103224045.deltacommit.requested
> -rw-r--r-- 1 vs staff 1642 Jan 3 22:40 20210103224045.deltacommit.inflight
> -rw-r--r-- 1 vs staff 2225 Jan 3 22:40 20210103224045.deltacommit
> vmacs:dataset vs$ ls -lrt
> /var/folders/nm/pf0yxwtn5n5dftzh09zbx36h0000gn/T/junit3448725349106849265/dataset/.hoodie/
> total 224
> -rw-r--r-- 1 vs staff 0 Jan 3 22:40
> 20210103224041.deltacommit.requested
> -rw-r--r-- 1 vs staff 301 Jan 3 22:40 hoodie.properties
> -rw-r--r-- 1 vs staff 0 Jan 3 22:40 20210103224041.deltacommit.inflight
> -rw-r--r-- 1 vs staff 6070 Jan 3 22:40 20210103224041.deltacommit
> -rw-r--r-- 1 vs staff 0 Jan 3 22:40
> 20210103224042.deltacommit.requested
> -rw-r--r-- 1 vs staff 0 Jan 3 22:40 20210103224042.deltacommit.inflight
> -rw-r--r-- 1 vs staff 6080 Jan 3 22:40 20210103224042.deltacommit
> drwxr-xr-x 4 vs staff 128 Jan 3 22:40 metadata
> -rw-r--r-- 1 vs staff 0 Jan 3 22:40
> 20210103224045.deltacommit.requested
> -rw-r--r-- 1 vs staff 2143 Jan 3 22:40 20210103224045.deltacommit.inflight
> -rw-r--r-- 1 vs staff 4490 Jan 3 22:40 20210103224045.deltacommit
> -rw-r--r-- 1 vs staff 0 Jan 3 22:40
> 20210103224047.deltacommit.requested
> -rw-r--r-- 1 vs staff 3619 Jan 3 22:40 20210103224047.deltacommit.inflight
> -rw-r--r-- 1 vs staff 6198 Jan 3 22:40 20210103224047.deltacommit
> -rw-r--r-- 1 vs staff 0 Jan 3 22:40
> 20210103224049.deltacommit.requested
> -rw-r--r-- 1 vs staff 6181 Jan 3 22:40 20210103224049.deltacommit.inflight
> -rw-r--r-- 1 vs staff 9651 Jan 3 22:40 20210103224049.deltacommit
> -rw-r--r-- 1 vs staff 4172 Jan 3 22:40 20210103224051.compaction.requested
> -rw-r--r-- 1 vs staff 0 Jan 3 22:40 20210103224051.compaction.inflight
> -rw-r--r-- 1 vs staff 8700 Jan 3 22:40 20210103224051.commit
> -rw-r--r-- 1 vs staff 5134 Jan 3 22:40 20210103224053.clean.requested
> -rw-r--r-- 1 vs staff 5134 Jan 3 22:40 20210103224053.clean.inflight
> -rw-r--r-- 1 vs staff 4539 Jan 3 22:40 20210103224053.clean
> -rw-r--r-- 1 vs staff 0 Jan 3 22:40 20210103224056.restore.inflight
> -rw-r--r-- 1 vs staff 3861 Jan 3 22:40 20210103224056.restore
> vmacs:dataset vs$ {code}
> !image-2021-01-03-22-48-54-646.png!
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