Arango DB issue

[vaibhavgupta18]

Arango version 3.3.16

We are creating connection trough java service as below

	return new ArangoDB.Builder().host(host, port).user(user).password(password).useProtocol(Protocol.VST)
			.useSsl(ssl).maxConnections(1).connectionTtl(1000 * 60 * 3L).build();

below are the java driver versions used

		arangodb-spring-data
		<version>3.2.0</version>

		arangodb-java-driver
		<version>4.7.0</version>

we are getting below error frequently is some requests

Could not connect to host[addr=XXXXXX,port=XXXX] or SSL Handshake failed. Try connecting to host[addr=XXXXXX,port=XXXX]

g.apache.catalina.connector.ClientAbortException: java.io.IOException: Broken pipe
admit_erpservicescalendar.1.m84fuptatr8a@ADMIT-PROD-MEMBER2-NEW | at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:321)
admit_erpservicescalendar.1.m84fuptatr8a@ADMIT-PROD-MEMBER2-NEW | at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:284)
admit_erpservicescalendar.1.m84fuptatr8a@ADMIT-PROD-MEMBER2-NEW | at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:118)
admit_erpservicescalendar.1.m84fuptatr8a@ADMIT-PROD-MEMBER2-NEW | at com.fasterxml.jackson.core.json.UTF8JsonGenerator.flush(UTF8JsonGenerator.java:1100)
admit_erpservicescalendar.1.m84fuptatr8a@ADMIT-PROD-MEMBER2-NEW | at

[dothebart]

Hi,
please note that ArangoDB 3.3 is out of Support for quiet a while. Please upgrade to Arangodb 3.8 or later.
please note as well, that the mmfiles-storage engine is not supported anymore.

[vaibhavgupta18]

hi @dothebart can i upgrade from 3.3 to new stable.
If yes can you share the steps to do that without impacting running application and recommend the next stable version .

[Simran-B]

Have a look here:

• https://www.arangodb.com/docs/stable/upgrading-general-info.html
• https://www.arangodb.com/docs/stable/release-notes-upgrading-changes37.html#mmfiles-storage-engine
• https://www.arangodb.com/docs/3.7/administration-engine-switch-engine.html

An uninterrupted upgrade between 3.3 and 3.8+ is hardly possible. If you plan on upgrading anyway, consider to upgrade to 3.10, which is the latest stable version.