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Version 2.1 by Eva Torken on 2024/03/22 15:33
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2 In this document, we will use the information from the actual root cause analysis to make a generic view that can be used if you run into the same or a similar problem in the future. Finally, the document will describe the situation, the problem, the analysis, and the result.
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4 Should you have any questions, please get in touch with [[academy@emagiz.com>>mailto:academy@emagiz.com]].
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6 == 1. Situation ==
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8 No data is delivered to a backend system.
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10 == 2. Problem ==
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12 The problem in this case was that the backend system was not receiving any data. This was caused by an unstable H2 database.
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14 == 3. Analysis ==
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16 === 3.1 Reproduction ===
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18 N/A
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20 === 3.2 Analysis ===
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22 The problem led us to investigate the health of the H2 database. The database had a very high CPU and had high CPU after the connector underwent auto-healing. After further investigation it seemed that the H2 was reprocessing messages and therefore not taking on new ones.
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24 == 4. Result ==
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26 The removal and re-addition of the H2 database caused the H2 database to return to normal behavior. Afterwards, the problem did not reoccur.
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28 == 5. Suggested Additional Readings ==
29 N/A
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