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Simon_Waters_13's avatar
Simon_Waters_13
Icon for Cirrostratus rankCirrostratus
May 03, 2018

016b0000:3: Rewrite: Failed to insert HTML parser, error ERR_INPROGRESS

Got this error trying to failover active/standby pair to a standby updated to 12.1.3.4.

 

I presume it means I can't failover and preserve session (which is fine if it is the case we just need to schedule it), but I couldn't find any reference to this specific error in documentation.

 

tmm1[20411]: 016b0000:3: Rewrite: Failed to insert HTML parser, error ERR_INPROGRESS tmm1[20411]: 016b0000:3: Rewrite: Failed to insert HTML node, error ERR_INPROGRESS

 

Happens when failing over to upgraded standby, message is produced (I think) in response to HTTP requests tied to an existing APM managed session.

 

Everything else looked good, just the active web sessions got no responses, failing back to the older version causes the existing sessions to carry on where they left off.

 

APM
application delivery
LTM

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  • Simon_Waters_13's avatar
    Simon_Waters_13
    Icon for Cirrostratus rankCirrostratus
    Jul 03, 2018

    The first clue here is that disabling HTTP2 profile resolves the error, and the APM login page is served correctly again.

     

    My suspicion is some combination of multi-domain authentication, and HTTP2, broke in 12.1.3.4

     

    It is still broken in 12.1.3.5.

     

    I've got the contract people sorting out how to raise this issue with F5 properly.

     

    Anyway disabling HTTP2 may be an answer, even if it is not a good answer.