Michael Han created ZOOKEEPER-3427:
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Summary: Introduce SnapshotComparer that assists debugging with
snapshots.
Key: ZOOKEEPER-3427
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3427
Project: ZooKeeper
Issue Type: Improvement
Components: server
Affects Versions: 3.6.0
Reporter: Michael Han
Assignee: Michael Han
SnapshotComparer is a tool that loads and compares two snapshots, with
configurable threshold and various filters. It's useful in use cases that
involve snapshot analysis, such as offline data consistency checking, and data
trending analysis (e.g. what's growing under which zNode path during when).
A sample output of the tool (actual numbers removed, due to sensitivity).
{code:java}
Successfully parsed options!
Deserialized snapshot in snapshot.0 in seconds
Processed data tree in seconds
Deserialized snapshot in snapshot.1 in seconds
Processed data tree in seconds
Node count:
Total size:
Max depth:
Count of nodes at depth 1:
Count of nodes at depth 2:
Count of nodes at depth 3:
Count of nodes at depth 4:
Count of nodes at depth 5:
Count of nodes at depth 6:
Count of nodes at depth 7:
Count of nodes at depth 8:
Count of nodes at depth 9:
Count of nodes at depth 10:
Count of nodes at depth 11:
Node count:
Total size:
Max depth:
Count of nodes at depth 1:
Count of nodes at depth 2:
Count of nodes at depth 3:
Count of nodes at depth 4:
Count of nodes at depth 5:
Count of nodes at depth 6:
Count of nodes at depth 7:
Count of nodes at depth 8:
Count of nodes at depth 9:
Count of nodes at depth 10:
Count of nodes at depth 11:
Analysis for depth 0
Analysis for depth 1
Analysis for depth 2
Analysis for depth 3
Analysis for depth 4
Analysis for depth 5
Analysis for depth 6
Analysis for depth 7
Analysis for depth 8
Analysis for depth 9
Analysis for depth 10
{code}
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