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Merge pull request #5840 from Icinga/fix/elasticsearch-writer-6 

Fix newline terminator for bulk requests in ElasticsearchWriter
This commit is contained in:
Michael Friedrich 2017-12-07 17:07:01 +01:00 committed by GitHub
parent d91e5cd054 14953dff42
commit 13895b43a2
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 17 additions and 6 deletions
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2
doc/14-features.md
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@ -347,7 +347,7 @@ The check results include parsed performance data metrics if enabled.
> **Note**
>
> Elasticsearch 5.x+ is required.
> Elasticsearch 5.x+ is required. This feature has been tested with Elasticsearch 5.6.4 and 6.0.0.
Enable the feature and restart Icinga 2.

21
lib/perfdata/elasticsearchwriter.cpp
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@ -396,6 +396,11 @@ void ElasticsearchWriter::Flush(void)
String body = boost::algorithm::join(m_DataBuffer, "\n");
m_DataBuffer.clear();
/* Elasticsearch 6.x requires a new line. This is compatible to 5.x.
* Tested with 6.0.0 and 5.6.4.
*/
body += "\n";
SendRequest(body);
}
@ -455,12 +460,20 @@ void ElasticsearchWriter::SendRequest(const String& body)
try {
resp.Parse(context, true);
while (resp.Parse(context, true) && !resp.Complete)
; /* Do nothing */
} catch (const std::exception& ex) {
Log(LogWarning, "ElasticsearchWriter")
<< "Cannot read from HTTP API on host '" << GetHost() << "' port '" << GetPort() << "'.";
<< "Failed to parse HTTP response from host '" << GetHost() << "' port '" << GetPort() << "': " << DiagnosticInformation(ex, false);
throw ex;
}
if (!resp.Complete) {
Log(LogWarning, "ElasticsearchWriter")
<< "Failed to read a complete HTTP response from the Elasticsearch server.";
return;
}
if (resp.StatusCode > 299) {
if (resp.StatusCode == 401) {
/* More verbose error logging with Elasticsearch is hidden behind a proxy. */
@ -479,10 +492,6 @@ void ElasticsearchWriter::SendRequest(const String& body)
Log(LogWarning, "ElasticsearchWriter")
<< "Unexpected response code " << resp.StatusCode;
/* Finish parsing the headers and body. */
while (!resp.Complete)
resp.Parse(context, true);
String contentType = resp.Headers->Get("content-type");
if (contentType != "application/json") {
@ -509,6 +518,8 @@ void ElasticsearchWriter::SendRequest(const String& body)
Log(LogCritical, "ElasticsearchWriter")
<< "Elasticsearch error message:\n" << error;
return;
}
}