Avoid noisy stack traces when Elasticsearch is not available #3934
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Only log stack traces if debug logging is enabled. Closes #3861
joschi
reviewed
Jun 27, 2017
| return numberOfDataNodes > 0; | ||
| } catch (ElasticsearchException e) { | ||
| if (LOG.isDebugEnabled()) { | ||
| LOG.error(e.getMessage(), e); |
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This was intentional. The idea was to only show the error if debugging is enabled so it's easier to identify the log message is an error.
joschi
approved these changes
Jun 27, 2017
| return numberOfDataNodes > 0; | ||
| } catch (ElasticsearchException e) { | ||
| if (LOG.isDebugEnabled()) { | ||
| LOG.error(e.getMessage(), e); |
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Only log stack traces if debug logging is enabled.
Closes #3861
Especially
Cluster#isConnectec()should not log anything if Elasticsearch is not reachable.A starting/running Graylog server without Elasticsearch logs only this instead of pages of stack traces now.